[INFO] crate robin-derives 0.3.0 is already in cache
[INFO] extracting crate robin-derives 0.3.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/robin-derives/0.3.0
[INFO] extracting crate robin-derives 0.3.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/robin-derives/0.3.0
[INFO] validating manifest of robin-derives-0.3.0 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 robin-derives-0.3.0 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 robin-derives-0.3.0
[INFO] finished frobbing robin-derives-0.3.0
[INFO] frobbed toml for robin-derives-0.3.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/robin-derives/0.3.0/Cargo.toml
[INFO] started frobbing robin-derives-0.3.0
[INFO] finished frobbing robin-derives-0.3.0
[INFO] frobbed toml for robin-derives-0.3.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/robin-derives/0.3.0/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing robin-derives-0.3.0 against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/robin-derives/0.3.0:/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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 1a0696c4384068b838180af98c1c495b3a3818e914e06472ba5e4c4cb539f7e1
[INFO] running `"docker" "start" "-a" "1a0696c4384068b838180af98c1c495b3a3818e914e06472ba5e4c4cb539f7e1"`
[INFO] [stderr]    Compiling robin-derives v0.3.0 (/opt/crater/workdir)
[INFO] [stderr] warning: function is never used: `underscore`
[INFO] [stderr]    --> src/jobs.rs:111:1
[INFO] [stderr]     |
[INFO] [stderr] 111 | fn underscore(s: &str) -> String {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.50s
[INFO] running `"docker" "inspect" "1a0696c4384068b838180af98c1c495b3a3818e914e06472ba5e4c4cb539f7e1"`
[INFO] running `"docker" "rm" "-f" "1a0696c4384068b838180af98c1c495b3a3818e914e06472ba5e4c4cb539f7e1"`
[INFO] [stdout] 1a0696c4384068b838180af98c1c495b3a3818e914e06472ba5e4c4cb539f7e1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/robin-derives/0.3.0:/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" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 6ed4a9feaefe91094c5059da61e047a491bb8390babf5420d1f328de5afc5ba6
[INFO] running `"docker" "start" "-a" "6ed4a9feaefe91094c5059da61e047a491bb8390babf5420d1f328de5afc5ba6"`
[INFO] [stderr]    Compiling robin-derives v0.3.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.00s
[INFO] running `"docker" "inspect" "6ed4a9feaefe91094c5059da61e047a491bb8390babf5420d1f328de5afc5ba6"`
[INFO] running `"docker" "rm" "-f" "6ed4a9feaefe91094c5059da61e047a491bb8390babf5420d1f328de5afc5ba6"`
[INFO] [stdout] 6ed4a9feaefe91094c5059da61e047a491bb8390babf5420d1f328de5afc5ba6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/robin-derives/0.3.0:/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" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] ff158a3758182957d9779de40e0d9d75b547408fb30f77ffb76255c4889ab01e
[INFO] running `"docker" "start" "-a" "ff158a3758182957d9779de40e0d9d75b547408fb30f77ffb76255c4889ab01e"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/robin_derives-6f30f0012acc3fe3
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test jobs::tests::test_underscore ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests robin-derives
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "ff158a3758182957d9779de40e0d9d75b547408fb30f77ffb76255c4889ab01e"`
[INFO] running `"docker" "rm" "-f" "ff158a3758182957d9779de40e0d9d75b547408fb30f77ffb76255c4889ab01e"`
[INFO] [stdout] ff158a3758182957d9779de40e0d9d75b547408fb30f77ffb76255c4889ab01e