[INFO] crate helper 1.0.0 is already in cache
[INFO] extracting crate helper 1.0.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/helper/1.0.0
[INFO] extracting crate helper 1.0.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/helper/1.0.0
[INFO] validating manifest of helper-1.0.0 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 helper-1.0.0 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 helper-1.0.0
[INFO] finished frobbing helper-1.0.0
[INFO] frobbed toml for helper-1.0.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/helper/1.0.0/Cargo.toml
[INFO] started frobbing helper-1.0.0
[INFO] finished frobbing helper-1.0.0
[INFO] frobbed toml for helper-1.0.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/helper/1.0.0/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing helper-1.0.0 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-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/helper/1.0.0:/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] e9e10e3d9807fdf3e2906d77ed21ee4fcc85cbf08cbf38d9509be8b4bc29e499
[INFO] running `"docker" "start" "-a" "e9e10e3d9807fdf3e2906d77ed21ee4fcc85cbf08cbf38d9509be8b4bc29e499"`
[INFO] [stderr]    Compiling helper v1.0.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.22s
[INFO] running `"docker" "inspect" "e9e10e3d9807fdf3e2906d77ed21ee4fcc85cbf08cbf38d9509be8b4bc29e499"`
[INFO] running `"docker" "rm" "-f" "e9e10e3d9807fdf3e2906d77ed21ee4fcc85cbf08cbf38d9509be8b4bc29e499"`
[INFO] [stdout] e9e10e3d9807fdf3e2906d77ed21ee4fcc85cbf08cbf38d9509be8b4bc29e499
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/helper/1.0.0:/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] 421940bdb464295f8ff3d902190e2805c61518b4ce807ffa70e91336865ed547
[INFO] running `"docker" "start" "-a" "421940bdb464295f8ff3d902190e2805c61518b4ce807ffa70e91336865ed547"`
[INFO] [stderr]    Compiling helper v1.0.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.45s
[INFO] running `"docker" "inspect" "421940bdb464295f8ff3d902190e2805c61518b4ce807ffa70e91336865ed547"`
[INFO] running `"docker" "rm" "-f" "421940bdb464295f8ff3d902190e2805c61518b4ce807ffa70e91336865ed547"`
[INFO] [stdout] 421940bdb464295f8ff3d902190e2805c61518b4ce807ffa70e91336865ed547
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/helper/1.0.0:/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"`
[INFO] [stdout] e7bbe70b3e3bb3c623f3b60bc0a31235a5620482489629d9bfaf979bff9cec2d
[INFO] running `"docker" "start" "-a" "e7bbe70b3e3bb3c623f3b60bc0a31235a5620482489629d9bfaf979bff9cec2d"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/helper-fe7563f44fa35f17
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test::test_if ... 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 helper
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - if (line 5) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "e7bbe70b3e3bb3c623f3b60bc0a31235a5620482489629d9bfaf979bff9cec2d"`
[INFO] running `"docker" "rm" "-f" "e7bbe70b3e3bb3c623f3b60bc0a31235a5620482489629d9bfaf979bff9cec2d"`
[INFO] [stdout] e7bbe70b3e3bb3c623f3b60bc0a31235a5620482489629d9bfaf979bff9cec2d