[INFO] crate retain_mut 0.1.0 is already in cache
[INFO] extracting crate retain_mut 0.1.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/retain_mut/0.1.0
[INFO] extracting crate retain_mut 0.1.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/retain_mut/0.1.0
[INFO] validating manifest of retain_mut-0.1.0 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 retain_mut-0.1.0 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 retain_mut-0.1.0
[INFO] finished frobbing retain_mut-0.1.0
[INFO] frobbed toml for retain_mut-0.1.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/retain_mut/0.1.0/Cargo.toml
[INFO] started frobbing retain_mut-0.1.0
[INFO] finished frobbing retain_mut-0.1.0
[INFO] frobbed toml for retain_mut-0.1.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/retain_mut/0.1.0/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 retain_mut-0.1.0 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-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/retain_mut/0.1.0:/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] a37fd15469764c7e89454ad2f7d4d53c87181611ac9ed8664005b595e11eb28f
[INFO] running `"docker" "start" "-a" "a37fd15469764c7e89454ad2f7d4d53c87181611ac9ed8664005b595e11eb28f"`
[INFO] [stderr]    Compiling retain_mut v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `"docker" "inspect" "a37fd15469764c7e89454ad2f7d4d53c87181611ac9ed8664005b595e11eb28f"`
[INFO] running `"docker" "rm" "-f" "a37fd15469764c7e89454ad2f7d4d53c87181611ac9ed8664005b595e11eb28f"`
[INFO] [stdout] a37fd15469764c7e89454ad2f7d4d53c87181611ac9ed8664005b595e11eb28f
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/retain_mut/0.1.0:/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] c4eaad1959d65996aa9996bbea5efca352101a4a4e0a800d7bf204062666181c
[INFO] running `"docker" "start" "-a" "c4eaad1959d65996aa9996bbea5efca352101a4a4e0a800d7bf204062666181c"`
[INFO] [stderr]    Compiling retain_mut v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.63s
[INFO] running `"docker" "inspect" "c4eaad1959d65996aa9996bbea5efca352101a4a4e0a800d7bf204062666181c"`
[INFO] running `"docker" "rm" "-f" "c4eaad1959d65996aa9996bbea5efca352101a4a4e0a800d7bf204062666181c"`
[INFO] [stdout] c4eaad1959d65996aa9996bbea5efca352101a4a4e0a800d7bf204062666181c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/retain_mut/0.1.0:/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] 50d3d3b3f54ca664631448c2ab264331fb478bcc0e63c85f94ff148890e55be7
[INFO] running `"docker" "start" "-a" "50d3d3b3f54ca664631448c2ab264331fb478bcc0e63c85f94ff148890e55be7"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/retain_mut-735e4204e7bf1c86
[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] [stderr]    Doc-tests retain_mut
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - RetainMut::retain_mut (line 13) ... 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" "50d3d3b3f54ca664631448c2ab264331fb478bcc0e63c85f94ff148890e55be7"`
[INFO] running `"docker" "rm" "-f" "50d3d3b3f54ca664631448c2ab264331fb478bcc0e63c85f94ff148890e55be7"`
[INFO] [stdout] 50d3d3b3f54ca664631448c2ab264331fb478bcc0e63c85f94ff148890e55be7