Nov 27 16:04:54.471 INFO checking zhaihj/rust-play-ground against master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5 for pr-56074
Nov 27 16:04:54.472 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-7/master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56074/master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5:/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 +0b9f19dff1347e29bf4362ab5a8fab84b43023b5-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"`
Nov 27 16:04:54.972 INFO [stdout] f4efa357348f877a68a1c36f6b3108eb3cbaa2fc16d3b122a23227277edc3cac
Nov 27 16:04:54.974 INFO running `"docker" "start" "-a" "f4efa357348f877a68a1c36f6b3108eb3cbaa2fc16d3b122a23227277edc3cac"`
Nov 27 16:04:56.731 INFO [stderr] usermod: no changes
Nov 27 16:04:56.812 INFO [stderr]     Checking libc v0.2.19
Nov 27 16:04:56.812 INFO [stderr]     Checking rustc-serialize v0.3.22
Nov 27 16:04:58.174 INFO [stderr]     Checking memchr v1.0.1
Nov 27 16:05:02.289 INFO [stderr]     Checking csv v0.15.0
Nov 27 16:05:03.019 INFO [stderr]     Checking csv-read-test v0.1.0 (/source)
Nov 27 16:05:03.440 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 27 16:05:03.440 INFO [stderr]  --> src/bin/read-csv-matrix.rs:8:5
Nov 27 16:05:03.440 INFO [stderr]   |
Nov 27 16:05:03.440 INFO [stderr] 8 |     f.read_to_string(&mut s);
Nov 27 16:05:03.440 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 16:05:03.440 INFO [stderr]   |
Nov 27 16:05:03.440 INFO [stderr]   = note: #[warn(unused_must_use)] on by default
Nov 27 16:05:03.440 INFO [stderr]   = note: this `Result` may be an `Err` variant, which should be handled
Nov 27 16:05:03.440 INFO [stderr] 
Nov 27 16:05:03.456 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 27 16:05:03.456 INFO [stderr]  --> src/bin/read-csv-matrix.rs:8:5
Nov 27 16:05:03.456 INFO [stderr]   |
Nov 27 16:05:03.456 INFO [stderr] 8 |     f.read_to_string(&mut s);
Nov 27 16:05:03.456 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 16:05:03.456 INFO [stderr]   |
Nov 27 16:05:03.456 INFO [stderr]   = note: #[warn(unused_must_use)] on by default
Nov 27 16:05:03.456 INFO [stderr]   = note: this `Result` may be an `Err` variant, which should be handled
Nov 27 16:05:03.456 INFO [stderr] 
Nov 27 16:05:03.468 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.71s
Nov 27 16:05:03.488 INFO [stderr] su: No module specific data is present
Nov 27 16:05:04.517 INFO running `"docker" "inspect" "f4efa357348f877a68a1c36f6b3108eb3cbaa2fc16d3b122a23227277edc3cac"`
Nov 27 16:05:04.758 INFO running `"docker" "rm" "-f" "f4efa357348f877a68a1c36f6b3108eb3cbaa2fc16d3b122a23227277edc3cac"`
Nov 27 16:05:05.120 INFO [stdout] f4efa357348f877a68a1c36f6b3108eb3cbaa2fc16d3b122a23227277edc3cac