Dec 04 23:38:42.820 INFO checking TyRoXx/learning-rust against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 04 23:38:42.820 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 23:38:43.295 INFO [stdout] 9c2775414dcb5dd494d47fd2983bf17ccc4d3d085e849a3c50a0cd7fff59a546
Dec 04 23:38:43.301 INFO running `"docker" "start" "-a" "9c2775414dcb5dd494d47fd2983bf17ccc4d3d085e849a3c50a0cd7fff59a546"`
Dec 04 23:38:44.415 INFO [stderr] usermod: no changes
Dec 04 23:38:44.500 INFO [stderr]     Checking library2 v0.1.0 (/source/src/library2)
Dec 04 23:38:44.907 INFO [stderr] warning: unused import: `std::fs::read_dir`
Dec 04 23:38:44.907 INFO [stderr]  --> src/library2/src/lib.rs:1:5
Dec 04 23:38:44.907 INFO [stderr]   |
Dec 04 23:38:44.907 INFO [stderr] 1 | use std::fs::read_dir;
Dec 04 23:38:44.907 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^
Dec 04 23:38:44.907 INFO [stderr]   |
Dec 04 23:38:44.907 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 04 23:38:44.907 INFO [stderr] 
Dec 04 23:38:44.907 INFO [stderr] warning: unused import: `std::path::Path`
Dec 04 23:38:44.907 INFO [stderr]  --> src/library2/src/lib.rs:2:5
Dec 04 23:38:44.907 INFO [stderr]   |
Dec 04 23:38:44.907 INFO [stderr] 2 | use std::path::Path;
Dec 04 23:38:44.907 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Dec 04 23:38:44.907 INFO [stderr] 
Dec 04 23:38:44.907 INFO [stderr] warning: unused import: `std::sync::atomic::AtomicPtr`
Dec 04 23:38:44.907 INFO [stderr]  --> src/library2/src/lib.rs:3:5
Dec 04 23:38:44.907 INFO [stderr]   |
Dec 04 23:38:44.907 INFO [stderr] 3 | use std::sync::atomic::AtomicPtr;
Dec 04 23:38:44.907 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 23:38:44.907 INFO [stderr] 
Dec 04 23:38:44.907 INFO [stderr] warning: unused import: `std::sync::atomic::Ordering`
Dec 04 23:38:44.907 INFO [stderr]  --> src/library2/src/lib.rs:4:5
Dec 04 23:38:44.907 INFO [stderr]   |
Dec 04 23:38:44.907 INFO [stderr] 4 | use std::sync::atomic::Ordering;
Dec 04 23:38:44.907 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 23:38:44.907 INFO [stderr] 
Dec 04 23:38:44.931 INFO [stderr]     Checking learning-rust v0.1.0 (/source)
Dec 04 23:38:45.419 INFO [stderr] warning: unused import: `library2::add`
Dec 04 23:38:45.419 INFO [stderr]  --> src/main.rs:2:5
Dec 04 23:38:45.419 INFO [stderr]   |
Dec 04 23:38:45.419 INFO [stderr] 2 | use library2::add;
Dec 04 23:38:45.419 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 04 23:38:45.419 INFO [stderr]   |
Dec 04 23:38:45.419 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 04 23:38:45.419 INFO [stderr] 
Dec 04 23:38:45.716 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.27s
Dec 04 23:38:45.717 INFO [stderr] su: No module specific data is present
Dec 04 23:38:46.563 INFO running `"docker" "inspect" "9c2775414dcb5dd494d47fd2983bf17ccc4d3d085e849a3c50a0cd7fff59a546"`
Dec 04 23:38:46.865 INFO running `"docker" "rm" "-f" "9c2775414dcb5dd494d47fd2983bf17ccc4d3d085e849a3c50a0cd7fff59a546"`
Dec 04 23:38:47.155 INFO [stdout] 9c2775414dcb5dd494d47fd2983bf17ccc4d3d085e849a3c50a0cd7fff59a546