[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-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/fuszenecker/TaskStats"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/fuszenecker/TaskStats'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/fuszenecker/TaskStats" "work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/fuszenecker/TaskStats"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/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#60960a260f7b5c695fd0717311d72ce62dd4eb43
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of fuszenecker/TaskStats on toolchain try#266783e4e09e4e9d5307c1c8e695659c58bbcac7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-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-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/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-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/fuszenecker/TaskStats/Cargo.toml
[INFO] crate fuszenecker/TaskStats already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking fuszenecker/TaskStats against try#266783e4e09e4e9d5307c1c8e695659c58bbcac7 for pr-63376
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-5/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/fuszenecker/TaskStats:/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=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" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 3cb54c1d12dca809c1f2b77b7665edd1c8bca14c8406c8b5dfc2d09b0a44ffd9
[INFO] running `"docker" "start" "-a" "3cb54c1d12dca809c1f2b77b7665edd1c8bca14c8406c8b5dfc2d09b0a44ffd9"`
[INFO] [stderr]     Checking clicolors-control v0.2.0
[INFO] [stderr]     Checking termios v0.2.2
[INFO] [stderr]    Compiling openssl-sys v0.9.27
[INFO] [stderr]     Checking serde_json v1.0.11
[INFO] [stderr]     Checking parking_lot v0.5.4
[INFO] [stderr]     Checking env_logger v0.5.5
[INFO] [stderr]     Checking chrono v0.4.0
[INFO] [stderr]     Checking console v0.6.1
[INFO] [stderr]    Compiling openssl v0.9.24
[INFO] [stderr]     Checking native-tls v0.1.5
[INFO] [stderr]     Checking tokio-tls v0.1.4
[INFO] [stderr]     Checking hyper-tls v0.1.2
[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 19.98s
[INFO] running `"docker" "inspect" "3cb54c1d12dca809c1f2b77b7665edd1c8bca14c8406c8b5dfc2d09b0a44ffd9"`
[INFO] running `"docker" "rm" "-f" "3cb54c1d12dca809c1f2b77b7665edd1c8bca14c8406c8b5dfc2d09b0a44ffd9"`
[INFO] [stdout] 3cb54c1d12dca809c1f2b77b7665edd1c8bca14c8406c8b5dfc2d09b0a44ffd9