Dec 04 14:26:01.656 INFO checking matthiasbeyer/task-rain against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 04 14:26:01.656 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-6/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56481/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/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 +c8ae2de8363be088604ffa2ccba84ff7ad7250bc-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 04 14:26:01.855 INFO [stdout] fd5dbd0b7b802f858e0fef8893232f48aae769d46eace567280dc8a75c27ca43
Dec 04 14:26:01.862 INFO running `"docker" "start" "-a" "fd5dbd0b7b802f858e0fef8893232f48aae769d46eace567280dc8a75c27ca43"`
Dec 04 14:26:02.687 INFO [stderr] usermod: no changes
Dec 04 14:26:02.871 INFO [stderr]     Checking serde v0.9.15
Dec 04 14:26:02.871 INFO [stderr]    Compiling backtrace-sys v0.1.12
Dec 04 14:26:02.871 INFO [stderr]     Checking term_size v0.3.0
Dec 04 14:26:02.871 INFO [stderr]     Checking time v0.1.38
Dec 04 14:26:02.873 INFO [stderr]     Checking atty v0.2.2
Dec 04 14:26:02.873 INFO [stderr]     Checking itertools v0.6.2
Dec 04 14:26:02.873 INFO [stderr]    Compiling serde_codegen_internals v0.14.2
Dec 04 14:26:03.702 INFO [stderr]     Checking textwrap v0.8.0
Dec 04 14:26:04.731 INFO [stderr]     Checking chrono v0.2.25
Dec 04 14:26:05.031 INFO [stderr]     Checking clap v2.26.1
Dec 04 14:26:07.955 INFO [stderr]    Compiling serde_derive v0.9.15
Dec 04 14:26:18.731 INFO [stderr]     Checking uuid v0.4.0
Dec 04 14:26:18.731 INFO [stderr]     Checking serde_json v0.9.10
Dec 04 14:26:20.989 INFO [stderr]     Checking task-hookrs v0.3.0
Dec 04 14:26:25.431 INFO [stderr]     Checking backtrace v0.3.3
Dec 04 14:26:25.890 INFO [stderr]     Checking error-chain v0.11.0
Dec 04 14:26:26.527 INFO [stderr]     Checking mowl v1.2.0
Dec 04 14:26:27.095 INFO [stderr]     Checking rain v0.3.1
Dec 04 14:26:27.805 INFO [stderr]     Checking task-graph v0.1.0 (/source)
Dec 04 14:26:29.327 INFO [stderr] warning: unused variable: `time`
Dec 04 14:26:29.327 INFO [stderr]   --> src/main.rs:42:10
Dec 04 14:26:29.327 INFO [stderr]    |
Dec 04 14:26:29.327 INFO [stderr] 42 |     for (time, group) in tasks.into_iter() {
Dec 04 14:26:29.327 INFO [stderr]    |          ^^^^ help: consider using `_time` instead
Dec 04 14:26:29.327 INFO [stderr]    |
Dec 04 14:26:29.327 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 04 14:26:29.327 INFO [stderr] 
Dec 04 14:26:29.339 INFO [stderr] warning: variable does not need to be mutable
Dec 04 14:26:29.339 INFO [stderr]   --> src/main.rs:27:17
Dec 04 14:26:29.339 INFO [stderr]    |
Dec 04 14:26:29.339 INFO [stderr] 27 |             let mut file = File::open(filename).expect("Couldn't open file");
Dec 04 14:26:29.339 INFO [stderr]    |                 ----^^^^
Dec 04 14:26:29.339 INFO [stderr]    |                 |
Dec 04 14:26:29.339 INFO [stderr]    |                 help: remove this `mut`
Dec 04 14:26:29.339 INFO [stderr]    |
Dec 04 14:26:29.339 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 04 14:26:29.339 INFO [stderr] 
Dec 04 14:26:29.342 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 14:26:29.342 INFO [stderr]   --> src/main.rs:48:5
Dec 04 14:26:29.342 INFO [stderr]    |
Dec 04 14:26:29.342 INFO [stderr] 48 |     graph.print();
Dec 04 14:26:29.342 INFO [stderr]    |     ^^^^^^^^^^^^^^
Dec 04 14:26:29.342 INFO [stderr]    |
Dec 04 14:26:29.342 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 04 14:26:29.342 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 14:26:29.342 INFO [stderr] 
Dec 04 14:26:29.635 INFO [stderr] warning: unused variable: `time`
Dec 04 14:26:29.635 INFO [stderr]   --> src/main.rs:42:10
Dec 04 14:26:29.635 INFO [stderr]    |
Dec 04 14:26:29.635 INFO [stderr] 42 |     for (time, group) in tasks.into_iter() {
Dec 04 14:26:29.635 INFO [stderr]    |          ^^^^ help: consider using `_time` instead
Dec 04 14:26:29.635 INFO [stderr]    |
Dec 04 14:26:29.635 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 04 14:26:29.635 INFO [stderr] 
Dec 04 14:26:29.647 INFO [stderr] warning: variable does not need to be mutable
Dec 04 14:26:29.647 INFO [stderr]   --> src/main.rs:27:17
Dec 04 14:26:29.647 INFO [stderr]    |
Dec 04 14:26:29.647 INFO [stderr] 27 |             let mut file = File::open(filename).expect("Couldn't open file");
Dec 04 14:26:29.647 INFO [stderr]    |                 ----^^^^
Dec 04 14:26:29.647 INFO [stderr]    |                 |
Dec 04 14:26:29.647 INFO [stderr]    |                 help: remove this `mut`
Dec 04 14:26:29.647 INFO [stderr]    |
Dec 04 14:26:29.647 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 04 14:26:29.647 INFO [stderr] 
Dec 04 14:26:29.648 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 14:26:29.648 INFO [stderr]   --> src/main.rs:48:5
Dec 04 14:26:29.648 INFO [stderr]    |
Dec 04 14:26:29.648 INFO [stderr] 48 |     graph.print();
Dec 04 14:26:29.648 INFO [stderr]    |     ^^^^^^^^^^^^^^
Dec 04 14:26:29.648 INFO [stderr]    |
Dec 04 14:26:29.648 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 04 14:26:29.648 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 14:26:29.648 INFO [stderr] 
Dec 04 14:26:29.683 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 26.96s
Dec 04 14:26:29.703 INFO [stderr] su: No module specific data is present
Dec 04 14:26:30.455 INFO running `"docker" "inspect" "fd5dbd0b7b802f858e0fef8893232f48aae769d46eace567280dc8a75c27ca43"`
Dec 04 14:26:30.696 INFO running `"docker" "rm" "-f" "fd5dbd0b7b802f858e0fef8893232f48aae769d46eace567280dc8a75c27ca43"`
Dec 04 14:26:30.924 INFO [stdout] fd5dbd0b7b802f858e0fef8893232f48aae769d46eace567280dc8a75c27ca43