Does not compile under rust 1.0.0-beta3

[negge]

I just installed rust and could not get this project to build:

$ rustc --version
rustc 1.0.0-beta.3 (5241bf9c3 2015-04-25) (built 2015-04-25)

$ cargo build --verbose
Compiling postgres_extension v0.0.1 (file:///home/nathan/git/postgres-extension.rs)
Running rustc src/lib.rs --crate-name postgres_extension --crate-type dylib -g -C metadata=ccbbb938512147eb -C extra-filename=-ccbbb938512147eb --out-dir /home/nathan/git/postgres-extension.rs/target/debug --emit=dep-info,link -L dependency=/home/nathan/git/postgres-extension.rs/target/debug -L dependency=/home/nathan/git/postgres-extension.rs/target/debug/deps
src/lib.rs:7:20: 7:37 error: unresolved import core::marker::InvariantLifetime. There is no InvariantLifetime in core::marker
src/lib.rs:7 use core::marker::{InvariantLifetime, MarkerTrait};
^~~~~~~~~~~~~~~~~
src/lib.rs:7:39: 7:50 error: unresolved import core::marker::MarkerTrait. There is no MarkerTrait in core::marker
src/lib.rs:7 use core::marker::{InvariantLifetime, MarkerTrait};
^~~~~~~~~~~
error: aborting due to 2 previous errors
Could not compile postgres_extension.

Caused by:
Process didn't exit successfully: rustc src/lib.rs --crate-name postgres_extension --crate-type dylib -g -C metadata=ccbbb938512147eb -C extra-filename=-ccbbb938512147eb --out-dir /home/nathan/git/postgres-extension.rs/target/debug --emit=dep-info,link -L dependency=/home/nathan/git/postgres-extension.rs/target/debug -L dependency=/home/nathan/git/postgres-extension.rs/target/debug/deps (exit code: 101)

[thehydroimpulse]

Yeah, this project hasn't been updated to match the current Rust version in a while. It was more of an experimentation than anything else.

[negge]

This is still not compiling for me after the latest pull request. The error is different though:

$ rustc --version
rustc 1.0.0 (a59de37e9 2015-05-13) (built 2015-05-14)

$ cargo build --verbose
Compiling libc v0.1.8
Running rustc /home/nathan/.cargo/registry/src/github.com-1ecc6299db9ec823/libc-0.1.8/rust/src/liblibc/lib.rs --crate-name libc --crate-type lib -g --cfg feature="cargo-build" --cfg feature="default" -C metadata=2eda841eb12a3090 -C extra-filename=-2eda841eb12a3090 --out-dir /home/nathan/git/postgres-extension.rs/target/debug/deps --emit=dep-info,link -L dependency=/home/nathan/git/postgres-extension.rs/target/debug/deps -L dependency=/home/nathan/git/postgres-extension.rs/target/debug/deps -Awarnings
Compiling postgres_extension v0.0.1 (file:///home/nathan/git/postgres-extension.rs)
Running rustc src/lib.rs --crate-name postgres_extension --crate-type dylib -g -C metadata=ccbbb938512147eb -C extra-filename=-ccbbb938512147eb --out-dir /home/nathan/git/postgres-extension.rs/target/debug --emit=dep-info,link -L dependency=/home/nathan/git/postgres-extension.rs/target/debug -L dependency=/home/nathan/git/postgres-extension.rs/target/debug/deps --extern libc=/home/nathan/git/postgres-extension.rs/target/debug/deps/liblibc-2eda841eb12a3090.rlib
src/lib.rs:13:1: 13:30 warning: type fmNodePtr should have a camel case name such as Fmnodeptr, #[warn(non_camel_case_types)] on by default
src/lib.rs:13 type fmNodePtr = *mut c_void;
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
src/lib.rs:14:1: 14:32 warning: type fmAggrefPtr should have a camel case name such as Fmaggrefptr, #[warn(non_camel_case_types)] on by default
src/lib.rs:14 type fmAggrefPtr = *mut c_void;
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
src/lib.rs:463:5: 463:35 warning: struct field is never used: ptr, #[warn(dead_code)] on by default
src/lib.rs:463 ptr: *mut FunctionCallInfoData,
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
src/lib.rs:471:5: 471:15 warning: struct field is never used: val, #[warn(dead_code)] on by default
src/lib.rs:471 val: usize
^~~~~~~~~~
src/lib.rs:475:20: 475:25 warning: unused variable: value, #[warn(unused_variables)] on by default
src/lib.rs:475 pub fn new_str(value: &str) -> Datum {
^~~~~
src/lib.rs:1:1: 1:18 error: unstable feature
src/lib.rs:1 #![feature(core)]
^~~~~~~~~~~~~~~~~
note: this feature may not be used in the stable release channel
error: aborting due to previous error
Could not compile postgres_extension.

Caused by:
Process didn't exit successfully: rustc src/lib.rs --crate-name postgres_extension --crate-type dylib -g -C metadata=ccbbb938512147eb -C extra-filename=-ccbbb938512147eb --out-dir /home/nathan/git/postgres-extension.rs/target/debug --emit=dep-info,link -L dependency=/home/nathan/git/postgres-extension.rs/target/debug -L dependency=/home/nathan/git/postgres-extension.rs/target/debug/deps --extern libc=/home/nathan/git/postgres-extension.rs/target/debug/deps/liblibc-2eda841eb12a3090.rlib (exit code: 101)