Dec 11 13:58:14.061 INFO checking matthiasbeyer/task-rain against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 11 13:58:14.061 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-0/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56677/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +aa9aa79c3c583aab59ac9134542d60a780c35e2e-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 11 13:58:14.283 INFO [stdout] ab3b67a1b80d35e0a36a061f40c0d658ec487612dd493d893369a243a1c7d4c6
Dec 11 13:58:14.285 INFO running `"docker" "start" "-a" "ab3b67a1b80d35e0a36a061f40c0d658ec487612dd493d893369a243a1c7d4c6"`
Dec 11 13:58:14.944 INFO [stderr] usermod: no changes
Dec 11 13:58:15.052 INFO [stderr]    Compiling backtrace-sys v0.1.12
Dec 11 13:58:15.052 INFO [stderr]     Checking serde_json v0.9.10
Dec 11 13:58:15.052 INFO [stderr]     Checking uuid v0.4.0
Dec 11 13:58:15.052 INFO [stderr]     Checking itertools v0.6.2
Dec 11 13:58:15.061 INFO [stderr]     Checking chrono v0.2.25
Dec 11 13:58:17.986 INFO [stderr]     Checking task-hookrs v0.3.0
Dec 11 13:58:31.026 INFO [stderr]     Checking backtrace v0.3.3
Dec 11 13:58:31.672 INFO [stderr]     Checking error-chain v0.11.0
Dec 11 13:58:32.316 INFO [stderr]     Checking mowl v1.2.0
Dec 11 13:58:32.884 INFO [stderr]     Checking rain v0.3.1
Dec 11 13:58:33.650 INFO [stderr]     Checking task-graph v0.1.0 (/source)
Dec 11 13:58:36.092 INFO [stderr] warning: unused variable: `time`
Dec 11 13:58:36.092 INFO [stderr]   --> src/main.rs:42:10
Dec 11 13:58:36.092 INFO [stderr]    |
Dec 11 13:58:36.092 INFO [stderr] 42 |     for (time, group) in tasks.into_iter() {
Dec 11 13:58:36.092 INFO [stderr]    |          ^^^^ help: consider using `_time` instead
Dec 11 13:58:36.100 INFO [stderr]    |
Dec 11 13:58:36.100 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 11 13:58:36.100 INFO [stderr] 
Dec 11 13:58:36.110 INFO [stderr] warning: variable does not need to be mutable
Dec 11 13:58:36.110 INFO [stderr]   --> src/main.rs:27:17
Dec 11 13:58:36.110 INFO [stderr]    |
Dec 11 13:58:36.110 INFO [stderr] 27 |             let mut file = File::open(filename).expect("Couldn't open file");
Dec 11 13:58:36.110 INFO [stderr]    |                 ----^^^^
Dec 11 13:58:36.110 INFO [stderr]    |                 |
Dec 11 13:58:36.110 INFO [stderr]    |                 help: remove this `mut`
Dec 11 13:58:36.110 INFO [stderr]    |
Dec 11 13:58:36.110 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 11 13:58:36.110 INFO [stderr] 
Dec 11 13:58:36.110 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 13:58:36.110 INFO [stderr]   --> src/main.rs:48:5
Dec 11 13:58:36.110 INFO [stderr]    |
Dec 11 13:58:36.110 INFO [stderr] 48 |     graph.print();
Dec 11 13:58:36.110 INFO [stderr]    |     ^^^^^^^^^^^^^^
Dec 11 13:58:36.110 INFO [stderr]    |
Dec 11 13:58:36.110 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 11 13:58:36.110 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 13:58:36.110 INFO [stderr] 
Dec 11 13:58:36.117 INFO [stderr] warning: unused variable: `time`
Dec 11 13:58:36.117 INFO [stderr]   --> src/main.rs:42:10
Dec 11 13:58:36.117 INFO [stderr]    |
Dec 11 13:58:36.117 INFO [stderr] 42 |     for (time, group) in tasks.into_iter() {
Dec 11 13:58:36.117 INFO [stderr]    |          ^^^^ help: consider using `_time` instead
Dec 11 13:58:36.117 INFO [stderr]    |
Dec 11 13:58:36.117 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 11 13:58:36.117 INFO [stderr] 
Dec 11 13:58:36.128 INFO [stderr] warning: variable does not need to be mutable
Dec 11 13:58:36.128 INFO [stderr]   --> src/main.rs:27:17
Dec 11 13:58:36.128 INFO [stderr]    |
Dec 11 13:58:36.128 INFO [stderr] 27 |             let mut file = File::open(filename).expect("Couldn't open file");
Dec 11 13:58:36.128 INFO [stderr]    |                 ----^^^^
Dec 11 13:58:36.128 INFO [stderr]    |                 |
Dec 11 13:58:36.128 INFO [stderr]    |                 help: remove this `mut`
Dec 11 13:58:36.128 INFO [stderr]    |
Dec 11 13:58:36.128 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 11 13:58:36.128 INFO [stderr] 
Dec 11 13:58:36.128 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 13:58:36.128 INFO [stderr]   --> src/main.rs:48:5
Dec 11 13:58:36.128 INFO [stderr]    |
Dec 11 13:58:36.128 INFO [stderr] 48 |     graph.print();
Dec 11 13:58:36.128 INFO [stderr]    |     ^^^^^^^^^^^^^^
Dec 11 13:58:36.128 INFO [stderr]    |
Dec 11 13:58:36.128 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 11 13:58:36.128 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 13:58:36.128 INFO [stderr] 
Dec 11 13:58:36.167 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 21.20s
Dec 11 13:58:36.188 INFO [stderr] su: No module specific data is present
Dec 11 13:58:36.606 INFO running `"docker" "inspect" "ab3b67a1b80d35e0a36a061f40c0d658ec487612dd493d893369a243a1c7d4c6"`
Dec 11 13:58:36.834 INFO running `"docker" "rm" "-f" "ab3b67a1b80d35e0a36a061f40c0d658ec487612dd493d893369a243a1c7d4c6"`
Dec 11 13:58:37.044 INFO [stdout] ab3b67a1b80d35e0a36a061f40c0d658ec487612dd493d893369a243a1c7d4c6