[INFO] updating cached repository das3in/rust-pomodoro
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/das3in/rust-pomodoro
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/das3in/rust-pomodoro" "work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/das3in/rust-pomodoro"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/das3in/rust-pomodoro'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/das3in/rust-pomodoro" "work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/das3in/rust-pomodoro"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/das3in/rust-pomodoro'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 1c01e7e24c80acf45ea7d99eec5fef9f1dfa7d12
[INFO] sha for GitHub repo das3in/rust-pomodoro: 1c01e7e24c80acf45ea7d99eec5fef9f1dfa7d12
[INFO] validating manifest of das3in/rust-pomodoro on toolchain master#e305df1846a6d985315917ae0c81b74af8b4e641
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of das3in/rust-pomodoro on toolchain try#99a7498759a22b5684caf798a98b7e90ad9d2443
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing das3in/rust-pomodoro
[INFO] finished frobbing das3in/rust-pomodoro
[INFO] frobbed toml for das3in/rust-pomodoro written to work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/das3in/rust-pomodoro/Cargo.toml
[INFO] started frobbing das3in/rust-pomodoro
[INFO] finished frobbing das3in/rust-pomodoro
[INFO] frobbed toml for das3in/rust-pomodoro written to work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/das3in/rust-pomodoro/Cargo.toml
[INFO] crate das3in/rust-pomodoro already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking das3in/rust-pomodoro against master#e305df1846a6d985315917ae0c81b74af8b4e641 for pr-60039-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-60039-1/worker-0/master#e305df1846a6d985315917ae0c81b74af8b4e641:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/das3in/rust-pomodoro:/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" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 731d92ae929c14387772b27e7f065ab4befdfffafa0680893ccea667132e68bf
[INFO] running `"docker" "start" "-a" "731d92ae929c14387772b27e7f065ab4befdfffafa0680893ccea667132e68bf"`
[INFO] [stderr]     Checking chan v0.1.19
[INFO] [stderr]     Checking tester v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `short_break`
[INFO] [stderr]   --> src/main.rs:51:9
[INFO] [stderr]    |
[INFO] [stderr] 51 |     let short_break = chan::tick_ms(break_param / 3);
[INFO] [stderr]    |         ^^^^^^^^^^^ help: consider prefixing with an underscore: `_short_break`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `break_minutes_remaining`
[INFO] [stderr]   --> src/main.rs:54:13
[INFO] [stderr]    |
[INFO] [stderr] 54 |     let mut break_minutes_remaining = 3;
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_break_minutes_remaining`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:54:9
[INFO] [stderr]    |
[INFO] [stderr] 54 |     let mut break_minutes_remaining = 3;
[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: unused variable: `short_break`
[INFO] [stderr]   --> src/main.rs:51:9
[INFO] [stderr]    |
[INFO] [stderr] 51 |     let short_break = chan::tick_ms(break_param / 3);
[INFO] [stderr]    |         ^^^^^^^^^^^ help: consider prefixing with an underscore: `_short_break`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `break_minutes_remaining`
[INFO] [stderr]   --> src/main.rs:54:13
[INFO] [stderr]    |
[INFO] [stderr] 54 |     let mut break_minutes_remaining = 3;
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_break_minutes_remaining`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:54:9
[INFO] [stderr]    |
[INFO] [stderr] 54 |     let mut break_minutes_remaining = 3;
[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 1.59s
[INFO] running `"docker" "inspect" "731d92ae929c14387772b27e7f065ab4befdfffafa0680893ccea667132e68bf"`
[INFO] running `"docker" "rm" "-f" "731d92ae929c14387772b27e7f065ab4befdfffafa0680893ccea667132e68bf"`
[INFO] [stdout] 731d92ae929c14387772b27e7f065ab4befdfffafa0680893ccea667132e68bf