Dec 12 08:16:01.171 INFO checking rust_hawktracer-0.3.1 against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 12 08:16:01.171 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-4/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/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 12 08:16:01.537 INFO [stdout] 5afc1f32bea099f8e4cd50545cafcc4913296584281093f4e4631b5ff994558d
Dec 12 08:16:01.539 INFO running `"docker" "start" "-a" "5afc1f32bea099f8e4cd50545cafcc4913296584281093f4e4631b5ff994558d"`
Dec 12 08:16:02.607 INFO [stderr] usermod: no changes
Dec 12 08:16:02.680 INFO [stderr]    Compiling rust_hawktracer v0.3.1 (/source)
Dec 12 08:16:03.072 INFO [stderr] warning: unused import: `Path`
Dec 12 08:16:03.072 INFO [stderr]  --> build.rs:6:26
Dec 12 08:16:03.072 INFO [stderr]   |
Dec 12 08:16:03.072 INFO [stderr] 6 | use std::path::{PathBuf, Path};
Dec 12 08:16:03.072 INFO [stderr]   |                          ^^^^
Dec 12 08:16:03.072 INFO [stderr]   |
Dec 12 08:16:03.072 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 12 08:16:03.072 INFO [stderr] 
Dec 12 08:16:10.120 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 12 08:16:10.120 INFO [stderr]   --> tests/simple_test.rs:11:5
Dec 12 08:16:10.120 INFO [stderr]    |
Dec 12 08:16:10.120 INFO [stderr] 11 |     fs::remove_file(file_name);
Dec 12 08:16:10.120 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 08:16:10.120 INFO [stderr]    |
Dec 12 08:16:10.120 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 12 08:16:10.120 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 12 08:16:10.120 INFO [stderr] 
Dec 12 08:16:10.220 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 12 08:16:10.220 INFO [stderr]   --> tests/file_listener_tests.rs:10:5
Dec 12 08:16:10.220 INFO [stderr]    |
Dec 12 08:16:10.220 INFO [stderr] 10 |     fs::remove_file(file_name);
Dec 12 08:16:10.220 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 08:16:10.220 INFO [stderr]    |
Dec 12 08:16:10.220 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 12 08:16:10.220 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 12 08:16:10.220 INFO [stderr] 
Dec 12 08:16:10.878 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.24s
Dec 12 08:16:10.884 INFO [stderr] su: No module specific data is present
Dec 12 08:16:11.172 INFO running `"docker" "inspect" "5afc1f32bea099f8e4cd50545cafcc4913296584281093f4e4631b5ff994558d"`
Dec 12 08:16:11.275 INFO running `"docker" "rm" "-f" "5afc1f32bea099f8e4cd50545cafcc4913296584281093f4e4631b5ff994558d"`
Dec 12 08:16:11.395 INFO [stdout] 5afc1f32bea099f8e4cd50545cafcc4913296584281093f4e4631b5ff994558d