[INFO] updating cached repository lukors/time_track
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/lukors/time_track
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/lukors/time_track" "work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/gh/lukors/time_track"`
[INFO] [stderr] Cloning into 'work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/gh/lukors/time_track'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/lukors/time_track" "work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/gh/lukors/time_track"`
[INFO] [stderr] Cloning into 'work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/gh/lukors/time_track'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c1a1521fee221cb098efb1889e93228fa7d1ab98
[INFO] sha for GitHub repo lukors/time_track: c1a1521fee221cb098efb1889e93228fa7d1ab98
[INFO] validating manifest of lukors/time_track on toolchain master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+8869ee03d7f258e1b76a11c6fbb01b5708a9f504-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of lukors/time_track on toolchain try#58b21121d0b447ceb3f1a655155d802191acf044
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+58b21121d0b447ceb3f1a655155d802191acf044-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing lukors/time_track
[INFO] finished frobbing lukors/time_track
[INFO] frobbed toml for lukors/time_track written to work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/gh/lukors/time_track/Cargo.toml
[INFO] started frobbing lukors/time_track
[INFO] finished frobbing lukors/time_track
[INFO] frobbed toml for lukors/time_track written to work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/gh/lukors/time_track/Cargo.toml
[INFO] crate lukors/time_track already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+8869ee03d7f258e1b76a11c6fbb01b5708a9f504-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+58b21121d0b447ceb3f1a655155d802191acf044-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking lukors/time_track against master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504 for pr-61100
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-61100/worker-2/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/gh/lukors/time_track:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/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=forbid" "-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" "+8869ee03d7f258e1b76a11c6fbb01b5708a9f504-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 23b8e13169e4e7ed3ca6d65257f3c6d4388bdabf0b7697079e21fdedaadeb35e
[INFO] running `"docker" "start" "-a" "23b8e13169e4e7ed3ca6d65257f3c6d4388bdabf0b7697079e21fdedaadeb35e"`
[INFO] [stderr]     Checking rand_core v0.2.1
[INFO] [stderr]     Checking serde_json v1.0.27
[INFO] [stderr]     Checking env_logger v0.5.13
[INFO] [stderr]     Checking rand v0.5.5
[INFO] [stderr]     Checking time_track v0.1.3 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:455:17
[INFO] [stderr]     |
[INFO] [stderr] 455 |             let mut event = self.events.get_mut(&time).unwrap();
[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]     Checking quickcheck v0.7.1
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:455:17
[INFO] [stderr]     |
[INFO] [stderr] 455 |             let mut event = self.events.get_mut(&time).unwrap();
[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 5.90s
[INFO] running `"docker" "inspect" "23b8e13169e4e7ed3ca6d65257f3c6d4388bdabf0b7697079e21fdedaadeb35e"`
[INFO] running `"docker" "rm" "-f" "23b8e13169e4e7ed3ca6d65257f3c6d4388bdabf0b7697079e21fdedaadeb35e"`
[INFO] [stdout] 23b8e13169e4e7ed3ca6d65257f3c6d4388bdabf0b7697079e21fdedaadeb35e