Dec 17 19:57:42.883 INFO checking matthiasbeyer/task-rain against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 17 19:57:42.883 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-0/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/matthiasbeyer/task-rain:/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" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 17 19:57:43.070 INFO [stdout] a215c1ae73dd3e548437874be4f4895c60b451e10e4dda32df26624b0e06fd6e
Dec 17 19:57:43.072 INFO running `"docker" "start" "-a" "a215c1ae73dd3e548437874be4f4895c60b451e10e4dda32df26624b0e06fd6e"`
Dec 17 19:57:44.144 INFO [stderr]    Compiling backtrace-sys v0.1.12
Dec 17 19:57:44.144 INFO [stderr]     Checking term_size v0.3.0
Dec 17 19:57:44.144 INFO [stderr]     Checking atty v0.2.2
Dec 17 19:57:44.144 INFO [stderr]     Checking termion v1.5.1
Dec 17 19:57:44.144 INFO [stderr]     Checking uuid v0.4.0
Dec 17 19:57:44.144 INFO [stderr]     Checking serde_json v0.9.10
Dec 17 19:57:44.144 INFO [stderr]     Checking itertools v0.6.2
Dec 17 19:57:44.160 INFO [stderr]     Checking chrono v0.2.25
Dec 17 19:57:44.564 INFO [stderr]     Checking textwrap v0.8.0
Dec 17 19:57:45.256 INFO [stderr]     Checking clap v2.26.1
Dec 17 19:57:47.700 INFO [stderr]     Checking task-hookrs v0.3.0
Dec 17 19:58:00.337 INFO [stderr]     Checking backtrace v0.3.3
Dec 17 19:58:00.758 INFO [stderr]     Checking error-chain v0.11.0
Dec 17 19:58:01.161 INFO [stderr]     Checking mowl v1.2.0
Dec 17 19:58:01.458 INFO [stderr]     Checking rain v0.3.1
Dec 17 19:58:01.806 INFO [stderr]     Checking task-graph v0.1.0 (/opt/crater/workdir)
Dec 17 19:58:03.256 INFO [stderr] warning: unused variable: `time`
Dec 17 19:58:03.256 INFO [stderr]   --> src/main.rs:42:10
Dec 17 19:58:03.257 INFO [stderr]    |
Dec 17 19:58:03.257 INFO [stderr] 42 |     for (time, group) in tasks.into_iter() {
Dec 17 19:58:03.257 INFO [stderr]    |          ^^^^ help: consider using `_time` instead
Dec 17 19:58:03.257 INFO [stderr]    |
Dec 17 19:58:03.257 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 17 19:58:03.257 INFO [stderr] 
Dec 17 19:58:03.264 INFO [stderr] warning: unused variable: `time`
Dec 17 19:58:03.264 INFO [stderr]   --> src/main.rs:42:10
Dec 17 19:58:03.265 INFO [stderr]    |
Dec 17 19:58:03.265 INFO [stderr] 42 |     for (time, group) in tasks.into_iter() {
Dec 17 19:58:03.265 INFO [stderr]    |          ^^^^ help: consider using `_time` instead
Dec 17 19:58:03.265 INFO [stderr]    |
Dec 17 19:58:03.265 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 17 19:58:03.268 INFO [stderr] 
Dec 17 19:58:03.268 INFO [stderr] warning: variable does not need to be mutable
Dec 17 19:58:03.268 INFO [stderr]   --> src/main.rs:27:17
Dec 17 19:58:03.268 INFO [stderr]    |
Dec 17 19:58:03.268 INFO [stderr] 27 |             let mut file = File::open(filename).expect("Couldn't open file");
Dec 17 19:58:03.268 INFO [stderr]    |                 ----^^^^
Dec 17 19:58:03.268 INFO [stderr]    |                 |
Dec 17 19:58:03.268 INFO [stderr]    |                 help: remove this `mut`
Dec 17 19:58:03.268 INFO [stderr]    |
Dec 17 19:58:03.268 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 17 19:58:03.268 INFO [stderr] 
Dec 17 19:58:03.268 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 19:58:03.268 INFO [stderr]   --> src/main.rs:48:5
Dec 17 19:58:03.268 INFO [stderr]    |
Dec 17 19:58:03.268 INFO [stderr] 48 |     graph.print();
Dec 17 19:58:03.268 INFO [stderr]    |     ^^^^^^^^^^^^^^
Dec 17 19:58:03.268 INFO [stderr]    |
Dec 17 19:58:03.268 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 17 19:58:03.268 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 19:58:03.268 INFO [stderr] 
Dec 17 19:58:03.279 INFO [stderr] warning: variable does not need to be mutable
Dec 17 19:58:03.279 INFO [stderr]   --> src/main.rs:27:17
Dec 17 19:58:03.280 INFO [stderr]    |
Dec 17 19:58:03.280 INFO [stderr] 27 |             let mut file = File::open(filename).expect("Couldn't open file");
Dec 17 19:58:03.280 INFO [stderr]    |                 ----^^^^
Dec 17 19:58:03.280 INFO [stderr]    |                 |
Dec 17 19:58:03.280 INFO [stderr]    |                 help: remove this `mut`
Dec 17 19:58:03.280 INFO [stderr]    |
Dec 17 19:58:03.280 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 17 19:58:03.280 INFO [stderr] 
Dec 17 19:58:03.280 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 19:58:03.281 INFO [stderr]   --> src/main.rs:48:5
Dec 17 19:58:03.281 INFO [stderr]    |
Dec 17 19:58:03.281 INFO [stderr] 48 |     graph.print();
Dec 17 19:58:03.281 INFO [stderr]    |     ^^^^^^^^^^^^^^
Dec 17 19:58:03.281 INFO [stderr]    |
Dec 17 19:58:03.281 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 17 19:58:03.281 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 19:58:03.281 INFO [stderr] 
Dec 17 19:58:03.299 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.28s
Dec 17 19:58:03.613 INFO running `"docker" "inspect" "a215c1ae73dd3e548437874be4f4895c60b451e10e4dda32df26624b0e06fd6e"`
Dec 17 19:58:03.697 INFO running `"docker" "rm" "-f" "a215c1ae73dd3e548437874be4f4895c60b451e10e4dda32df26624b0e06fd6e"`
Dec 17 19:58:03.809 INFO [stdout] a215c1ae73dd3e548437874be4f4895c60b451e10e4dda32df26624b0e06fd6e