Dec 04 06:07:00.851 INFO checking zhaihj/rust-play-ground against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 04 06:07:00.851 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-4/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56481/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/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 +1df97983eb2057dc6a8f7eb364e263b51ae23230-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 06:07:01.395 INFO [stdout] 84893e65cddad3cd181e52ebeaddb0040a54ac0013c79f4d3911410357825702
Dec 04 06:07:01.403 INFO running `"docker" "start" "-a" "84893e65cddad3cd181e52ebeaddb0040a54ac0013c79f4d3911410357825702"`
Dec 04 06:07:03.166 INFO [stderr] usermod: no changes
Dec 04 06:07:03.255 INFO [stderr]     Checking libc v0.2.19
Dec 04 06:07:03.255 INFO [stderr]     Checking byteorder v1.0.0
Dec 04 06:07:03.259 INFO [stderr]     Checking rustc-serialize v0.3.22
Dec 04 06:07:04.807 INFO [stderr]     Checking memchr v1.0.1
Dec 04 06:07:08.464 INFO [stderr]     Checking csv v0.15.0
Dec 04 06:07:09.282 INFO [stderr]     Checking csv-read-test v0.1.0 (/source)
Dec 04 06:07:09.531 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 06:07:09.532 INFO [stderr]  --> src/bin/read-csv-matrix.rs:8:5
Dec 04 06:07:09.532 INFO [stderr]   |
Dec 04 06:07:09.532 INFO [stderr] 8 |     f.read_to_string(&mut s);
Dec 04 06:07:09.533 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 06:07:09.533 INFO [stderr]   |
Dec 04 06:07:09.534 INFO [stderr]   = note: #[warn(unused_must_use)] on by default
Dec 04 06:07:09.534 INFO [stderr]   = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 06:07:09.534 INFO [stderr] 
Dec 04 06:07:09.663 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 06:07:09.664 INFO [stderr]  --> src/bin/read-csv-matrix.rs:8:5
Dec 04 06:07:09.664 INFO [stderr]   |
Dec 04 06:07:09.664 INFO [stderr] 8 |     f.read_to_string(&mut s);
Dec 04 06:07:09.665 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 06:07:09.665 INFO [stderr]   |
Dec 04 06:07:09.665 INFO [stderr]   = note: #[warn(unused_must_use)] on by default
Dec 04 06:07:09.666 INFO [stderr]   = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 06:07:09.666 INFO [stderr] 
Dec 04 06:07:09.695 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.50s
Dec 04 06:07:09.699 INFO [stderr] su: No module specific data is present
Dec 04 06:07:11.164 INFO running `"docker" "inspect" "84893e65cddad3cd181e52ebeaddb0040a54ac0013c79f4d3911410357825702"`
Dec 04 06:07:11.496 INFO running `"docker" "rm" "-f" "84893e65cddad3cd181e52ebeaddb0040a54ac0013c79f4d3911410357825702"`
Dec 04 06:07:11.828 INFO [stdout] 84893e65cddad3cd181e52ebeaddb0040a54ac0013c79f4d3911410357825702