[INFO] crate ref_slice 1.1.1 is already in cache
[INFO] extracting crate ref_slice 1.1.1 into work/ex/beta-1.38-1/sources/1.37.0/reg/ref_slice/1.1.1
[INFO] extracting crate ref_slice 1.1.1 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/ref_slice/1.1.1
[INFO] validating manifest of ref_slice-1.1.1 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 ref_slice-1.1.1 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 ref_slice-1.1.1
[INFO] finished frobbing ref_slice-1.1.1
[INFO] frobbed toml for ref_slice-1.1.1 written to work/ex/beta-1.38-1/sources/1.37.0/reg/ref_slice/1.1.1/Cargo.toml
[INFO] started frobbing ref_slice-1.1.1
[INFO] finished frobbing ref_slice-1.1.1
[INFO] frobbed toml for ref_slice-1.1.1 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/ref_slice/1.1.1/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 ref_slice-1.1.1 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-4/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/ref_slice/1.1.1:/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] f6c587d93542d0806619a2c13e1b3a959a98fe4381db9e5c5a8433bab9a9583b
[INFO] running `"docker" "start" "-a" "f6c587d93542d0806619a2c13e1b3a959a98fe4381db9e5c5a8433bab9a9583b"`
[INFO] [stderr]    Compiling ref_slice v1.1.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.10s
[INFO] running `"docker" "inspect" "f6c587d93542d0806619a2c13e1b3a959a98fe4381db9e5c5a8433bab9a9583b"`
[INFO] running `"docker" "rm" "-f" "f6c587d93542d0806619a2c13e1b3a959a98fe4381db9e5c5a8433bab9a9583b"`
[INFO] [stdout] f6c587d93542d0806619a2c13e1b3a959a98fe4381db9e5c5a8433bab9a9583b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/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/ref_slice/1.1.1:/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] 05b12985af8d2ab4d1b6890ab85976e93d2ddd24e141ab2c4331b54143157adb
[INFO] running `"docker" "start" "-a" "05b12985af8d2ab4d1b6890ab85976e93d2ddd24e141ab2c4331b54143157adb"`
[INFO] [stderr]    Compiling ref_slice v1.1.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.50s
[INFO] running `"docker" "inspect" "05b12985af8d2ab4d1b6890ab85976e93d2ddd24e141ab2c4331b54143157adb"`
[INFO] running `"docker" "rm" "-f" "05b12985af8d2ab4d1b6890ab85976e93d2ddd24e141ab2c4331b54143157adb"`
[INFO] [stdout] 05b12985af8d2ab4d1b6890ab85976e93d2ddd24e141ab2c4331b54143157adb
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/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/ref_slice/1.1.1:/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] 094848dc9e6a33328b493b4a61ea6babd13c2376c7f59fe583c73ca58b78efcd
[INFO] running `"docker" "start" "-a" "094848dc9e6a33328b493b4a61ea6babd13c2376c7f59fe583c73ca58b78efcd"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/ref_slice-f4cee11adb5c3fbd
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test tests::check_mut ... ok
[INFO] [stdout] test tests::check ... ok
[INFO] [stdout] test tests::check_opt ... ok
[INFO] [stdout] test tests::check_opt_mut ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests ref_slice
[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" "094848dc9e6a33328b493b4a61ea6babd13c2376c7f59fe583c73ca58b78efcd"`
[INFO] running `"docker" "rm" "-f" "094848dc9e6a33328b493b4a61ea6babd13c2376c7f59fe583c73ca58b78efcd"`
[INFO] [stdout] 094848dc9e6a33328b493b4a61ea6babd13c2376c7f59fe583c73ca58b78efcd