[INFO] crate gba-proc-macro 0.6.0 is already in cache
[INFO] extracting crate gba-proc-macro 0.6.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/gba-proc-macro/0.6.0
[INFO] extracting crate gba-proc-macro 0.6.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/gba-proc-macro/0.6.0
[INFO] validating manifest of gba-proc-macro-0.6.0 on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of gba-proc-macro-0.6.0 on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing gba-proc-macro-0.6.0
[INFO] finished frobbing gba-proc-macro-0.6.0
[INFO] frobbed toml for gba-proc-macro-0.6.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/gba-proc-macro/0.6.0/Cargo.toml
[INFO] started frobbing gba-proc-macro-0.6.0
[INFO] finished frobbing gba-proc-macro-0.6.0
[INFO] frobbed toml for gba-proc-macro-0.6.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/gba-proc-macro/0.6.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing gba-proc-macro-0.6.0 against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/gba-proc-macro/0.6.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 9b7087e049ce10c5511ef2f1bdb339fa86a6344dc4372dd34153dc9131610b6b
[INFO] running `"docker" "start" "-a" "9b7087e049ce10c5511ef2f1bdb339fa86a6344dc4372dd34153dc9131610b6b"`
[INFO] [stderr]    Compiling gba-proc-macro v0.6.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.80s
[INFO] running `"docker" "inspect" "9b7087e049ce10c5511ef2f1bdb339fa86a6344dc4372dd34153dc9131610b6b"`
[INFO] running `"docker" "rm" "-f" "9b7087e049ce10c5511ef2f1bdb339fa86a6344dc4372dd34153dc9131610b6b"`
[INFO] [stdout] 9b7087e049ce10c5511ef2f1bdb339fa86a6344dc4372dd34153dc9131610b6b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/gba-proc-macro/0.6.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 2e4d3aba9056b3670a92040e40bfd2a02d450589a3f38aef883d09a669f87fde
[INFO] running `"docker" "start" "-a" "2e4d3aba9056b3670a92040e40bfd2a02d450589a3f38aef883d09a669f87fde"`
[INFO] [stderr]    Compiling gba-proc-macro v0.6.0 (/opt/crater/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" "2e4d3aba9056b3670a92040e40bfd2a02d450589a3f38aef883d09a669f87fde"`
[INFO] running `"docker" "rm" "-f" "2e4d3aba9056b3670a92040e40bfd2a02d450589a3f38aef883d09a669f87fde"`
[INFO] [stdout] 2e4d3aba9056b3670a92040e40bfd2a02d450589a3f38aef883d09a669f87fde