[INFO] updating cached repository chudley/rust-logging-test
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/chudley/rust-logging-test
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/chudley/rust-logging-test" "work/ex/beta-1.38-1/sources/1.37.0/gh/chudley/rust-logging-test"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/chudley/rust-logging-test'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/chudley/rust-logging-test" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/chudley/rust-logging-test"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/chudley/rust-logging-test'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 0ad9b202e5b4bedef0fadf3deb591b7401ee50a5
[INFO] sha for GitHub repo chudley/rust-logging-test: 0ad9b202e5b4bedef0fadf3deb591b7401ee50a5
[INFO] validating manifest of chudley/rust-logging-test 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 chudley/rust-logging-test 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 chudley/rust-logging-test
[INFO] finished frobbing chudley/rust-logging-test
[INFO] frobbed toml for chudley/rust-logging-test written to work/ex/beta-1.38-1/sources/1.37.0/gh/chudley/rust-logging-test/Cargo.toml
[INFO] started frobbing chudley/rust-logging-test
[INFO] finished frobbing chudley/rust-logging-test
[INFO] frobbed toml for chudley/rust-logging-test written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/chudley/rust-logging-test/Cargo.toml
[INFO] crate chudley/rust-logging-test already has a lockfile, it will not be regenerated
[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 chudley/rust-logging-test 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-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/chudley/rust-logging-test:/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] b2e6fa0c3c5f25375b70db3c095e638f6f6ab5cc00df9ce654e70fefdeff49af
[INFO] running `"docker" "start" "-a" "b2e6fa0c3c5f25375b70db3c095e638f6f6ab5cc00df9ce654e70fefdeff49af"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling slog v2.4.1
[INFO] [stderr]    Compiling nix v0.8.1
[INFO] [stderr]    Compiling chrono v0.3.0
[INFO] [stderr]    Compiling slog-json v2.3.0
[INFO] [stderr]    Compiling slog-bunyan v2.1.0
[INFO] [stderr]    Compiling rust-logging-test v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.23s
[INFO] running `"docker" "inspect" "b2e6fa0c3c5f25375b70db3c095e638f6f6ab5cc00df9ce654e70fefdeff49af"`
[INFO] running `"docker" "rm" "-f" "b2e6fa0c3c5f25375b70db3c095e638f6f6ab5cc00df9ce654e70fefdeff49af"`
[INFO] [stdout] b2e6fa0c3c5f25375b70db3c095e638f6f6ab5cc00df9ce654e70fefdeff49af
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/chudley/rust-logging-test:/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] ff8034567ca3525081044bc609bc3b8cf2cb2ceb8d9b2a74015aa1415e7a9c71
[INFO] running `"docker" "start" "-a" "ff8034567ca3525081044bc609bc3b8cf2cb2ceb8d9b2a74015aa1415e7a9c71"`
[INFO] [stderr]    Compiling rust-logging-test v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.14s
[INFO] running `"docker" "inspect" "ff8034567ca3525081044bc609bc3b8cf2cb2ceb8d9b2a74015aa1415e7a9c71"`
[INFO] running `"docker" "rm" "-f" "ff8034567ca3525081044bc609bc3b8cf2cb2ceb8d9b2a74015aa1415e7a9c71"`
[INFO] [stdout] ff8034567ca3525081044bc609bc3b8cf2cb2ceb8d9b2a74015aa1415e7a9c71
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/chudley/rust-logging-test:/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] 1b69541fbbc83cd9261319c4d5e44cd4f9377ce62096de5adeacda085309fdf4
[INFO] running `"docker" "start" "-a" "1b69541fbbc83cd9261319c4d5e44cd4f9377ce62096de5adeacda085309fdf4"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rust_logging_test-bbb8bcbc0ce64484
[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" "1b69541fbbc83cd9261319c4d5e44cd4f9377ce62096de5adeacda085309fdf4"`
[INFO] running `"docker" "rm" "-f" "1b69541fbbc83cd9261319c4d5e44cd4f9377ce62096de5adeacda085309fdf4"`
[INFO] [stdout] 1b69541fbbc83cd9261319c4d5e44cd4f9377ce62096de5adeacda085309fdf4