[INFO] updating cached repository badlydrawnrod/timeliner
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/badlydrawnrod/timeliner
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/badlydrawnrod/timeliner" "work/ex/beta-1.38-1/sources/1.37.0/gh/badlydrawnrod/timeliner"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/badlydrawnrod/timeliner'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/badlydrawnrod/timeliner" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/badlydrawnrod/timeliner"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/badlydrawnrod/timeliner'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5baf2d8e674d6e4875992c02349b23d15fadee57
[INFO] sha for GitHub repo badlydrawnrod/timeliner: 5baf2d8e674d6e4875992c02349b23d15fadee57
[INFO] validating manifest of badlydrawnrod/timeliner 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 badlydrawnrod/timeliner 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 badlydrawnrod/timeliner
[INFO] finished frobbing badlydrawnrod/timeliner
[INFO] frobbed toml for badlydrawnrod/timeliner written to work/ex/beta-1.38-1/sources/1.37.0/gh/badlydrawnrod/timeliner/Cargo.toml
[INFO] started frobbing badlydrawnrod/timeliner
[INFO] finished frobbing badlydrawnrod/timeliner
[INFO] frobbed toml for badlydrawnrod/timeliner written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/badlydrawnrod/timeliner/Cargo.toml
[INFO] crate badlydrawnrod/timeliner 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing badlydrawnrod/timeliner 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-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/badlydrawnrod/timeliner:/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] 5e0c1bd846598033869a7b34a012e8c17ea80e694b03bcab91de0b3e3c328509
[INFO] running `"docker" "start" "-a" "5e0c1bd846598033869a7b34a012e8c17ea80e694b03bcab91de0b3e3c328509"`
[INFO] [stderr]    Compiling encoding_rs v0.8.4
[INFO] [stderr]    Compiling timeliner v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:33:13
[INFO] [stderr]    |
[INFO] [stderr] 33 |         let mut reader = BufReader::new(f);
[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] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:34:13
[INFO] [stderr]    |
[INFO] [stderr] 34 |         let mut utf8_line_reader = Utf8LineReader::new(reader)?;
[INFO] [stderr]    |             ----^^^^^^^^^^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:35:13
[INFO] [stderr]    |
[INFO] [stderr] 35 |         let mut log_line_reader = LogFileReader::new(filename, utf8_line_reader);
[INFO] [stderr]    |             ----^^^^^^^^^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.49s
[INFO] running `"docker" "inspect" "5e0c1bd846598033869a7b34a012e8c17ea80e694b03bcab91de0b3e3c328509"`
[INFO] running `"docker" "rm" "-f" "5e0c1bd846598033869a7b34a012e8c17ea80e694b03bcab91de0b3e3c328509"`
[INFO] [stdout] 5e0c1bd846598033869a7b34a012e8c17ea80e694b03bcab91de0b3e3c328509
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/badlydrawnrod/timeliner:/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] 64aaef7b5cfe5510af1fb847755bd768ec51182191da3ea26cc955e808eb8717
[INFO] running `"docker" "start" "-a" "64aaef7b5cfe5510af1fb847755bd768ec51182191da3ea26cc955e808eb8717"`
[INFO] [stderr]    Compiling timeliner v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:33:13
[INFO] [stderr]    |
[INFO] [stderr] 33 |         let mut reader = BufReader::new(f);
[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] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:34:13
[INFO] [stderr]    |
[INFO] [stderr] 34 |         let mut utf8_line_reader = Utf8LineReader::new(reader)?;
[INFO] [stderr]    |             ----^^^^^^^^^^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:35:13
[INFO] [stderr]    |
[INFO] [stderr] 35 |         let mut log_line_reader = LogFileReader::new(filename, utf8_line_reader);
[INFO] [stderr]    |             ----^^^^^^^^^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.87s
[INFO] running `"docker" "inspect" "64aaef7b5cfe5510af1fb847755bd768ec51182191da3ea26cc955e808eb8717"`
[INFO] running `"docker" "rm" "-f" "64aaef7b5cfe5510af1fb847755bd768ec51182191da3ea26cc955e808eb8717"`
[INFO] [stdout] 64aaef7b5cfe5510af1fb847755bd768ec51182191da3ea26cc955e808eb8717
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/badlydrawnrod/timeliner:/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] 62c768992cc3c733096d47a7599c70e4cb3799d7cb162bc0c8e53a3d537b776d
[INFO] running `"docker" "start" "-a" "62c768992cc3c733096d47a7599c70e4cb3799d7cb162bc0c8e53a3d537b776d"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/timeliner-8737f4d18c15cfce
[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" "62c768992cc3c733096d47a7599c70e4cb3799d7cb162bc0c8e53a3d537b776d"`
[INFO] running `"docker" "rm" "-f" "62c768992cc3c733096d47a7599c70e4cb3799d7cb162bc0c8e53a3d537b776d"`
[INFO] [stdout] 62c768992cc3c733096d47a7599c70e4cb3799d7cb162bc0c8e53a3d537b776d