[INFO] updating cached repository fuszenecker/TaskStats
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/fuszenecker/TaskStats
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/fuszenecker/TaskStats" "work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/gh/fuszenecker/TaskStats"`
[INFO] [stderr] Cloning into 'work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/gh/fuszenecker/TaskStats'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/fuszenecker/TaskStats" "work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/gh/fuszenecker/TaskStats"`
[INFO] [stderr] Cloning into 'work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/gh/fuszenecker/TaskStats'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a8754d3be473dd91b44772fb7dbec73dc7c69a77
[INFO] sha for GitHub repo fuszenecker/TaskStats: a8754d3be473dd91b44772fb7dbec73dc7c69a77
[INFO] validating manifest of fuszenecker/TaskStats on toolchain master#39401465da4ce27aeeb2c2a26133ac35c63aa515
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of fuszenecker/TaskStats on toolchain try#f45cc3094ee337acd688771b9234318046b0572d
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+f45cc3094ee337acd688771b9234318046b0572d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing fuszenecker/TaskStats
[INFO] finished frobbing fuszenecker/TaskStats
[INFO] frobbed toml for fuszenecker/TaskStats written to work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/gh/fuszenecker/TaskStats/Cargo.toml
[INFO] started frobbing fuszenecker/TaskStats
[INFO] finished frobbing fuszenecker/TaskStats
[INFO] frobbed toml for fuszenecker/TaskStats written to work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/gh/fuszenecker/TaskStats/Cargo.toml
[INFO] crate fuszenecker/TaskStats already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+f45cc3094ee337acd688771b9234318046b0572d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] checking fuszenecker/TaskStats against master#39401465da4ce27aeeb2c2a26133ac35c63aa515 for pr-60914
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60914/worker-1/master#39401465da4ce27aeeb2c2a26133ac35c63aa515:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/gh/fuszenecker/TaskStats:/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" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 94da3660a79aad430f1e4695b3bb1567dfef2220442f5406fdc77b8f3283060f
[INFO] running `"docker" "start" "-a" "94da3660a79aad430f1e4695b3bb1567dfef2220442f5406fdc77b8f3283060f"`
[INFO] [stderr]     Checking console v0.6.1
[INFO] [stderr]     Checking chrono v0.4.0
[INFO] [stderr]     Checking env_logger v0.5.5
[INFO] [stderr]     Checking restson v0.1.3
[INFO] [stderr]     Checking taskstats v1.1.1 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/statistics.rs:53:13
[INFO] [stderr]    |
[INFO] [stderr] 53 |         let mut monthly_vec = monthly.get_mut(&group).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] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/statistics.rs:53:13
[INFO] [stderr]    |
[INFO] [stderr] 53 |         let mut monthly_vec = monthly.get_mut(&group).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 4.36s
[INFO] running `"docker" "inspect" "94da3660a79aad430f1e4695b3bb1567dfef2220442f5406fdc77b8f3283060f"`
[INFO] running `"docker" "rm" "-f" "94da3660a79aad430f1e4695b3bb1567dfef2220442f5406fdc77b8f3283060f"`
[INFO] [stdout] 94da3660a79aad430f1e4695b3bb1567dfef2220442f5406fdc77b8f3283060f