[INFO] updating cached repository fichtknick/livelog
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/fichtknick/livelog
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/fichtknick/livelog" "work/ex/beta-1.37-6/sources/1.36.0/gh/fichtknick/livelog"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/fichtknick/livelog'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/fichtknick/livelog" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/fichtknick/livelog"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/fichtknick/livelog'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a2f180fafbbeb060bc580934ecd364d7ce860bdb
[INFO] sha for GitHub repo fichtknick/livelog: a2f180fafbbeb060bc580934ecd364d7ce860bdb
[INFO] validating manifest of fichtknick/livelog on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of fichtknick/livelog on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing fichtknick/livelog
[INFO] finished frobbing fichtknick/livelog
[INFO] frobbed toml for fichtknick/livelog written to work/ex/beta-1.37-6/sources/1.36.0/gh/fichtknick/livelog/Cargo.toml
[INFO] started frobbing fichtknick/livelog
[INFO] finished frobbing fichtknick/livelog
[INFO] frobbed toml for fichtknick/livelog written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/fichtknick/livelog/Cargo.toml
[INFO] crate fichtknick/livelog already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing fichtknick/livelog against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/fichtknick/livelog:/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-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 2e9a07a7f7170a5e0770f995add06ac93da6d9ada9c9fbc197414e91d54385f8
[INFO] running `"docker" "start" "-a" "2e9a07a7f7170a5e0770f995add06ac93da6d9ada9c9fbc197414e91d54385f8"`
[INFO] [stderr]    Compiling livelog v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:47:9
[INFO] [stderr]    |
[INFO] [stderr] 47 |     let mut logfile = init_file(&env::args().nth(1));
[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 1.49s
[INFO] running `"docker" "inspect" "2e9a07a7f7170a5e0770f995add06ac93da6d9ada9c9fbc197414e91d54385f8"`
[INFO] running `"docker" "rm" "-f" "2e9a07a7f7170a5e0770f995add06ac93da6d9ada9c9fbc197414e91d54385f8"`
[INFO] [stdout] 2e9a07a7f7170a5e0770f995add06ac93da6d9ada9c9fbc197414e91d54385f8
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/fichtknick/livelog:/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-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 2ad9fd8b10d3e64a3526614bcfa399ef97447143f7519529c79e3017a35c7c97
[INFO] running `"docker" "start" "-a" "2ad9fd8b10d3e64a3526614bcfa399ef97447143f7519529c79e3017a35c7c97"`
[INFO] [stderr]    Compiling livelog v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:47:9
[INFO] [stderr]    |
[INFO] [stderr] 47 |     let mut logfile = init_file(&env::args().nth(1));
[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 0.66s
[INFO] running `"docker" "inspect" "2ad9fd8b10d3e64a3526614bcfa399ef97447143f7519529c79e3017a35c7c97"`
[INFO] running `"docker" "rm" "-f" "2ad9fd8b10d3e64a3526614bcfa399ef97447143f7519529c79e3017a35c7c97"`
[INFO] [stdout] 2ad9fd8b10d3e64a3526614bcfa399ef97447143f7519529c79e3017a35c7c97
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/fichtknick/livelog:/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-2019-07-23" "test" "--frozen"`
[INFO] [stdout] cc25de7d669d1fae6c4e5f89b83e69ab79707484227b6de73347c24a29e84f6c
[INFO] running `"docker" "start" "-a" "cc25de7d669d1fae6c4e5f89b83e69ab79707484227b6de73347c24a29e84f6c"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/livelog-c07cd8d7eea172da
[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" "cc25de7d669d1fae6c4e5f89b83e69ab79707484227b6de73347c24a29e84f6c"`
[INFO] running `"docker" "rm" "-f" "cc25de7d669d1fae6c4e5f89b83e69ab79707484227b6de73347c24a29e84f6c"`
[INFO] [stdout] cc25de7d669d1fae6c4e5f89b83e69ab79707484227b6de73347c24a29e84f6c