Sep 10 18:11:23.667 INFO checking gluon_check-0.6.2 against master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1 for pr-54090
Sep 10 18:11:23.667 INFO running: cargo +f50b7758f4dc85dc1c5e38258adaa94213ac6ed1-alt check --frozen --all --all-targets
Sep 10 18:11:23.667 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-1/pr-54090/master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54090/worker-1/master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1:/target:rw,Z" "-v" "/home/ec2-user/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/home/ec2-user/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "CMD=cargo +f50b7758f4dc85dc1c5e38258adaa94213ac6ed1-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-m" "2G" "crater"`
Sep 10 18:11:23.897 INFO blam! 8a1d20d96a5902c5297ae22facdb706062982b91244054da604dbe0bb58519f0
Sep 10 18:11:23.900 INFO running `"docker" "start" "-a" "8a1d20d96a5902c5297ae22facdb706062982b91244054da604dbe0bb58519f0"`
Sep 10 18:11:24.854 INFO kablam! usermod: no changes
Sep 10 18:11:25.019 INFO kablam!     Checking anymap v0.12.1
Sep 10 18:11:25.022 INFO kablam!     Checking collect-mac v0.1.0
Sep 10 18:11:25.027 INFO kablam!     Checking union-find v0.3.2
Sep 10 18:11:25.036 INFO kablam!     Checking pretty v0.3.3
Sep 10 18:11:25.038 INFO kablam!     Checking pretty_assertions v0.3.4
Sep 10 18:11:26.891 INFO kablam!     Checking gluon_base v0.6.2
Sep 10 18:11:29.370 INFO kablam!     Checking gluon_check v0.6.2 (file:///source)
Sep 10 18:11:31.477 INFO kablam! error[E0658]: use of unstable library feature 'rustc_private': this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via `Cargo.toml` instead? (see issue #27812)
Sep 10 18:11:31.477 INFO kablam!  --> src/lib.rs:9:1
Sep 10 18:11:31.477 INFO kablam!   |
Sep 10 18:11:31.477 INFO kablam! 9 | extern crate env_logger;
Sep 10 18:11:31.477 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^
Sep 10 18:11:31.490 INFO kablam!   |
Sep 10 18:11:31.490 INFO kablam!   = help: add #![feature(rustc_private)] to the crate attributes to enable
Sep 10 18:11:31.490 INFO kablam! 
Sep 10 18:11:31.493 INFO kablam! error[E0658]: use of unstable library feature 'rustc_private': this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via `Cargo.toml` instead? (see issue #27812)
Sep 10 18:11:31.493 INFO kablam!    --> src/unify_type.rs:864:17
Sep 10 18:11:31.493 INFO kablam!     |
Sep 10 18:11:31.493 INFO kablam! 864 |         let _ = ::env_logger::init();
Sep 10 18:11:31.493 INFO kablam!     |                 ^^^^^^^^^^^^^^^^^^
Sep 10 18:11:31.493 INFO kablam!     |
Sep 10 18:11:31.493 INFO kablam!     = help: add #![feature(rustc_private)] to the crate attributes to enable
Sep 10 18:11:31.493 INFO kablam! 
Sep 10 18:11:31.494 INFO kablam! error[E0658]: use of unstable library feature 'rustc_private': this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via `Cargo.toml` instead? (see issue #27812)
Sep 10 18:11:31.494 INFO kablam!    --> src/unify_type.rs:895:17
Sep 10 18:11:31.494 INFO kablam!     |
Sep 10 18:11:31.494 INFO kablam! 895 |         let _ = ::env_logger::init();
Sep 10 18:11:31.494 INFO kablam!     |                 ^^^^^^^^^^^^^^^^^^
Sep 10 18:11:31.494 INFO kablam!     |
Sep 10 18:11:31.494 INFO kablam!     = help: add #![feature(rustc_private)] to the crate attributes to enable
Sep 10 18:11:31.494 INFO kablam! 
Sep 10 18:11:33.518 INFO kablam! error: aborting due to 3 previous errors
Sep 10 18:11:33.518 INFO kablam! 
Sep 10 18:11:33.518 INFO kablam! For more information about this error, try `rustc --explain E0658`.
Sep 10 18:11:33.525 INFO kablam! error: Could not compile `gluon_check`.
Sep 10 18:11:33.525 INFO kablam! warning: build failed, waiting for other jobs to finish...
Sep 10 18:11:33.781 INFO kablam! error: build failed
Sep 10 18:11:33.784 INFO kablam! su: No module specific data is present
Sep 10 18:11:34.196 INFO running `"docker" "rm" "-f" "8a1d20d96a5902c5297ae22facdb706062982b91244054da604dbe0bb58519f0"`
Sep 10 18:11:34.301 INFO blam! 8a1d20d96a5902c5297ae22facdb706062982b91244054da604dbe0bb58519f0