[INFO] crate gba-proc-macro 0.6.0 is already in cache
[INFO] testing gba-proc-macro-0.6.0 against 1.38.0 for beta-1.39-1
[INFO] extracting crate gba-proc-macro 0.6.0 into work/builds/worker-2/source
[INFO] validating manifest of crates.io crate gba-proc-macro 0.6.0 on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate gba-proc-macro 0.6.0
[INFO] finished tweaking crates.io crate gba-proc-macro 0.6.0
[INFO] tweaked toml for crates.io crate gba-proc-macro 0.6.0 written to work/builds/worker-2/source/Cargo.toml
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] d0e0be1a5574b4b60c80ed4be0a3613daa4f0c0c931ca1c8029f7352d987f83f
[INFO] running `"docker" "start" "-a" "d0e0be1a5574b4b60c80ed4be0a3613daa4f0c0c931ca1c8029f7352d987f83f"`
[INFO] [stderr]    Compiling rand v0.5.6
[INFO] [stderr]    Compiling gba-proc-macro v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.12s
[INFO] running `"docker" "inspect" "d0e0be1a5574b4b60c80ed4be0a3613daa4f0c0c931ca1c8029f7352d987f83f"`
[INFO] running `"docker" "rm" "-f" "d0e0be1a5574b4b60c80ed4be0a3613daa4f0c0c931ca1c8029f7352d987f83f"`
[INFO] [stdout] d0e0be1a5574b4b60c80ed4be0a3613daa4f0c0c931ca1c8029f7352d987f83f
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] e73b2bd5e3f43756480fc5a4d2579620606ade754ee3f13bb90c54e999db2b03
[INFO] running `"docker" "start" "-a" "e73b2bd5e3f43756480fc5a4d2579620606ade754ee3f13bb90c54e999db2b03"`
[INFO] [stderr]    Compiling gba-proc-macro v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stderr]  --> tests/the_tests.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(const_int_wrapping)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: Could not compile `gba-proc-macro`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "e73b2bd5e3f43756480fc5a4d2579620606ade754ee3f13bb90c54e999db2b03"`
[INFO] running `"docker" "rm" "-f" "e73b2bd5e3f43756480fc5a4d2579620606ade754ee3f13bb90c54e999db2b03"`
[INFO] [stdout] e73b2bd5e3f43756480fc5a4d2579620606ade754ee3f13bb90c54e999db2b03