[INFO] updating cached repository asteroidb612/printer
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/asteroidb612/printer
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/asteroidb612/printer" "work/ex/beta-1.38-1/sources/1.37.0/gh/asteroidb612/printer"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/asteroidb612/printer'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/asteroidb612/printer" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/asteroidb612/printer"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/asteroidb612/printer'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 8346ce8f92c53533d455c0379e903e6ec6471e87
[INFO] sha for GitHub repo asteroidb612/printer: 8346ce8f92c53533d455c0379e903e6ec6471e87
[INFO] validating manifest of asteroidb612/printer 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 asteroidb612/printer 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 asteroidb612/printer
[INFO] finished frobbing asteroidb612/printer
[INFO] frobbed toml for asteroidb612/printer written to work/ex/beta-1.38-1/sources/1.37.0/gh/asteroidb612/printer/Cargo.toml
[INFO] started frobbing asteroidb612/printer
[INFO] finished frobbing asteroidb612/printer
[INFO] frobbed toml for asteroidb612/printer written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/asteroidb612/printer/Cargo.toml
[INFO] crate asteroidb612/printer 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 asteroidb612/printer 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-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/asteroidb612/printer:/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] e215fb965116aeb291e36217e02b277f8c9cfc449ba824e7994490798cb58ee8
[INFO] running `"docker" "start" "-a" "e215fb965116aeb291e36217e02b277f8c9cfc449ba824e7994490798cb58ee8"`
[INFO] [stderr]    Compiling nom v2.1.0
[INFO] [stderr]    Compiling memchr v2.1.0
[INFO] [stderr]    Compiling ioctl-rs v0.1.6
[INFO] [stderr]    Compiling termios v0.2.2
[INFO] [stderr]    Compiling serial-core v0.4.0
[INFO] [stderr]    Compiling log v0.4.5
[INFO] [stderr]    Compiling ring v0.13.5
[INFO] [stderr]    Compiling term v0.5.1
[INFO] [stderr]    Compiling crossbeam-epoch v0.5.2
[INFO] [stderr]    Compiling uuid v0.2.3
[INFO] [stderr]    Compiling gag v0.1.10
[INFO] [stderr]    Compiling openssl v0.10.15
[INFO] [stderr]    Compiling syn v0.15.13
[INFO] [stderr]    Compiling gzip-header v0.2.0
[INFO] [stderr]    Compiling chrono v0.4.6
[INFO] [stderr]    Compiling serde_json v0.9.10
[INFO] [stderr]    Compiling serial-unix v0.4.0
[INFO] [stderr]    Compiling mio v0.6.16
[INFO] [stderr]    Compiling tokio-io v0.1.10
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling want v0.0.6
[INFO] [stderr]    Compiling error-chain v0.10.0
[INFO] [stderr]    Compiling url v0.5.10
[INFO] [stderr]    Compiling crossbeam-deque v0.6.1
[INFO] [stderr]    Compiling deflate v0.7.19
[INFO] [stderr]    Compiling serial v0.4.0
[INFO] [stderr]    Compiling twoway v0.1.8
[INFO] [stderr]    Compiling mime v0.2.6
[INFO] [stderr]    Compiling tiny_http v0.6.0
[INFO] [stderr]    Compiling tokio-codec v0.1.1
[INFO] [stderr]    Compiling h2 v0.1.13
[INFO] [stderr]    Compiling cron v0.6.0
[INFO] [stderr]    Compiling tokio-threadpool v0.1.8
[INFO] [stderr]    Compiling tokio-reactor v0.1.6
[INFO] [stderr]    Compiling mio-uds v0.6.7
[INFO] [stderr]    Compiling hyper v0.10.14
[INFO] [stderr]    Compiling native-tls v0.2.2
[INFO] [stderr]    Compiling job_scheduler v1.0.5
[INFO] [stderr]    Compiling tokio-fs v0.1.4
[INFO] [stderr]    Compiling mime_guess v1.8.6
[INFO] [stderr]    Compiling tokio-udp v0.1.2
[INFO] [stderr]    Compiling tokio-tcp v0.1.2
[INFO] [stderr]    Compiling tokio-uds v0.2.3
[INFO] [stderr]    Compiling serde_derive v1.0.80
[INFO] [stderr]    Compiling multipart v0.13.6
[INFO] [stderr]    Compiling tokio v0.1.11
[INFO] [stderr]    Compiling webpki v0.18.1
[INFO] [stderr]    Compiling sct v0.4.0
[INFO] [stderr]    Compiling webpki-roots v0.15.0
[INFO] [stderr]    Compiling rustls v0.13.1
[INFO] [stderr]    Compiling hyper-native-tls v0.3.0
[INFO] [stderr]    Compiling hyper v0.12.12
[INFO] [stderr]    Compiling yup-oauth2 v1.0.9
[INFO] [stderr]    Compiling rouille v2.2.0
[INFO] [stderr]    Compiling hyper-tls v0.3.1
[INFO] [stderr]    Compiling hyper-rustls v0.6.2
[INFO] [stderr]    Compiling reqwest v0.9.3
[INFO] [stderr]    Compiling google-calendar3 v1.0.5+20170514
[INFO] [stderr]    Compiling lumberjack v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:176:12
[INFO] [stderr]     |
[INFO] [stderr] 176 |         Ok(mut file) => file,
[INFO] [stderr]     |            ----^^^^
[INFO] [stderr]     |            |
[INFO] [stderr]     |            help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 05s
[INFO] running `"docker" "inspect" "e215fb965116aeb291e36217e02b277f8c9cfc449ba824e7994490798cb58ee8"`
[INFO] running `"docker" "rm" "-f" "e215fb965116aeb291e36217e02b277f8c9cfc449ba824e7994490798cb58ee8"`
[INFO] [stdout] e215fb965116aeb291e36217e02b277f8c9cfc449ba824e7994490798cb58ee8
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/asteroidb612/printer:/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] 8a636c20d8c8a27e8dd2e38c82e0a526e5b93d633f56481579002bb1b2b0f7ef
[INFO] running `"docker" "start" "-a" "8a636c20d8c8a27e8dd2e38c82e0a526e5b93d633f56481579002bb1b2b0f7ef"`
[INFO] [stderr]    Compiling lumberjack v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:176:12
[INFO] [stderr]     |
[INFO] [stderr] 176 |         Ok(mut file) => file,
[INFO] [stderr]     |            ----^^^^
[INFO] [stderr]     |            |
[INFO] [stderr]     |            help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.06s
[INFO] running `"docker" "inspect" "8a636c20d8c8a27e8dd2e38c82e0a526e5b93d633f56481579002bb1b2b0f7ef"`
[INFO] running `"docker" "rm" "-f" "8a636c20d8c8a27e8dd2e38c82e0a526e5b93d633f56481579002bb1b2b0f7ef"`
[INFO] [stdout] 8a636c20d8c8a27e8dd2e38c82e0a526e5b93d633f56481579002bb1b2b0f7ef
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/asteroidb612/printer:/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] 1acb02e3579ad39a53cbf42f6c7f6630424474d8a7bc05182794686a5eb40937
[INFO] running `"docker" "start" "-a" "1acb02e3579ad39a53cbf42f6c7f6630424474d8a7bc05182794686a5eb40937"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.28s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/lumberjack-7d9c2089c287ff8e
[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" "1acb02e3579ad39a53cbf42f6c7f6630424474d8a7bc05182794686a5eb40937"`
[INFO] running `"docker" "rm" "-f" "1acb02e3579ad39a53cbf42f6c7f6630424474d8a7bc05182794686a5eb40937"`
[INFO] [stdout] 1acb02e3579ad39a53cbf42f6c7f6630424474d8a7bc05182794686a5eb40937