Dec 06 23:12:09.370 INFO testing serial-0.4.0 against try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468 for pr-56514
Dec 06 23:12:09.370 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-0/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-alt build --frozen" "-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 06 23:12:09.824 INFO [stdout] 95554785b5c2569b027d88b921c5527ff99530507c1a989cbdfc0036b1ed037d
Dec 06 23:12:09.826 INFO running `"docker" "start" "-a" "95554785b5c2569b027d88b921c5527ff99530507c1a989cbdfc0036b1ed037d"`
Dec 06 23:12:11.103 INFO [stderr] usermod: no changes
Dec 06 23:12:11.173 INFO [stderr]    Compiling serial-unix v0.4.0
Dec 06 23:12:11.976 INFO [stderr]    Compiling serial v0.4.0 (/source)
Dec 06 23:12:12.372 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.23s
Dec 06 23:12:12.372 INFO [stderr] su: No module specific data is present
Dec 06 23:12:13.090 INFO running `"docker" "inspect" "95554785b5c2569b027d88b921c5527ff99530507c1a989cbdfc0036b1ed037d"`
Dec 06 23:12:13.324 INFO running `"docker" "rm" "-f" "95554785b5c2569b027d88b921c5527ff99530507c1a989cbdfc0036b1ed037d"`
Dec 06 23:12:13.713 INFO [stdout] 95554785b5c2569b027d88b921c5527ff99530507c1a989cbdfc0036b1ed037d
Dec 06 23:12:13.718 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-0/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-alt test --frozen --no-run" "-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 06 23:12:14.032 INFO [stdout] f6f24c320704a36cb90241ecaa803613333190b0883541778d17acaf7e654c8c
Dec 06 23:12:14.032 INFO running `"docker" "start" "-a" "f6f24c320704a36cb90241ecaa803613333190b0883541778d17acaf7e654c8c"`
Dec 06 23:12:15.496 INFO [stderr] usermod: no changes
Dec 06 23:12:15.561 INFO [stderr]    Compiling serial v0.4.0 (/source)
Dec 06 23:12:16.740 INFO [stderr] warning: unused import: `std::io::prelude`
Dec 06 23:12:16.740 INFO [stderr]  --> examples/read_write.rs:6:5
Dec 06 23:12:16.740 INFO [stderr]   |
Dec 06 23:12:16.740 INFO [stderr] 6 | use std::io::prelude::*;
Dec 06 23:12:16.740 INFO [stderr]   |     ^^^^^^^^^^^^^^^^
Dec 06 23:12:16.740 INFO [stderr]   |
Dec 06 23:12:16.740 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 06 23:12:16.740 INFO [stderr] 
Dec 06 23:12:17.952 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.43s
Dec 06 23:12:17.952 INFO [stderr] su: No module specific data is present
Dec 06 23:12:18.643 INFO running `"docker" "inspect" "f6f24c320704a36cb90241ecaa803613333190b0883541778d17acaf7e654c8c"`
Dec 06 23:12:19.024 INFO running `"docker" "rm" "-f" "f6f24c320704a36cb90241ecaa803613333190b0883541778d17acaf7e654c8c"`
Dec 06 23:12:19.372 INFO [stdout] f6f24c320704a36cb90241ecaa803613333190b0883541778d17acaf7e654c8c
Dec 06 23:12:19.465 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-0/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-alt test --frozen" "-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 06 23:12:20.048 INFO [stdout] 9c17426d92861206c894275f5e231a7f9190e90324fd9799e53a710183225f03
Dec 06 23:12:20.144 INFO running `"docker" "start" "-a" "9c17426d92861206c894275f5e231a7f9190e90324fd9799e53a710183225f03"`
Dec 06 23:12:21.462 INFO [stderr] usermod: no changes
Dec 06 23:12:21.516 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
Dec 06 23:12:21.552 INFO [stderr]      Running /target/debug/deps/serial-efc3fa0d3291a4bf
Dec 06 23:12:21.555 INFO [stderr]    Doc-tests serial
Dec 06 23:12:21.555 INFO [stdout] 
Dec 06 23:12:21.555 INFO [stdout] running 0 tests
Dec 06 23:12:21.555 INFO [stdout] 
Dec 06 23:12:21.555 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 06 23:12:21.556 INFO [stdout] 
Dec 06 23:12:22.231 INFO [stdout] 
Dec 06 23:12:22.231 INFO [stdout] running 2 tests
Dec 06 23:12:22.966 INFO [stdout] test src/lib.rs - open (line 50) ... ok
Dec 06 23:12:23.135 INFO [stdout] test src/lib.rs - open (line 57) ... ok
Dec 06 23:12:23.135 INFO [stdout] 
Dec 06 23:12:23.136 INFO [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 06 23:12:23.136 INFO [stdout] 
Dec 06 23:12:23.145 INFO [stderr] su: No module specific data is present
Dec 06 23:12:24.108 INFO running `"docker" "inspect" "9c17426d92861206c894275f5e231a7f9190e90324fd9799e53a710183225f03"`
Dec 06 23:12:24.392 INFO running `"docker" "rm" "-f" "9c17426d92861206c894275f5e231a7f9190e90324fd9799e53a710183225f03"`
Dec 06 23:12:24.664 INFO [stdout] 9c17426d92861206c894275f5e231a7f9190e90324fd9799e53a710183225f03