[INFO] fetching crate serial-unit-testing 0.2.4...
[INFO] testing serial-unit-testing-0.2.4 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate serial-unit-testing 0.2.4 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate serial-unit-testing 0.2.4 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate serial-unit-testing 0.2.4
[INFO] finished tweaking crates.io crate serial-unit-testing 0.2.4
[INFO] tweaked toml for crates.io crate serial-unit-testing 0.2.4 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate crates.io crate serial-unit-testing 0.2.4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b7908f0ff0ed4d8ca12df153a3f4c9fdb669a43dc339abc55cd5cf0117be6ce5
[INFO] running `Command { std: "docker" "start" "-a" "b7908f0ff0ed4d8ca12df153a3f4c9fdb669a43dc339abc55cd5cf0117be6ce5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b7908f0ff0ed4d8ca12df153a3f4c9fdb669a43dc339abc55cd5cf0117be6ce5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b7908f0ff0ed4d8ca12df153a3f4c9fdb669a43dc339abc55cd5cf0117be6ce5", kill_on_drop: false }`
[INFO] [stdout] b7908f0ff0ed4d8ca12df153a3f4c9fdb669a43dc339abc55cd5cf0117be6ce5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 103189f6bc05cc8a7a0deca7225416c5bd22926ab353c7dee00a11c0f957cd31
[INFO] running `Command { std: "docker" "start" "-a" "103189f6bc05cc8a7a0deca7225416c5bd22926ab353c7dee00a11c0f957cd31", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling cfg-if v0.1.9
[INFO] [stderr]    Compiling pkg-config v0.3.15
[INFO] [stderr]    Compiling arc-swap v0.4.4
[INFO] [stderr]    Compiling either v1.5.2
[INFO] [stderr]    Compiling cassowary v0.3.0
[INFO] [stderr]    Compiling regex-syntax v0.6.13
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling net2 v0.2.33
[INFO] [stderr]    Compiling signal-hook-registry v1.2.0
[INFO] [stderr]    Compiling parking_lot_core v0.7.0
[INFO] [stderr]    Compiling atty v0.2.13
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]    Compiling colored v1.9.2
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling parking_lot v0.10.0
[INFO] [stderr]    Compiling libudev v0.2.0
[INFO] [stderr]    Compiling mio v0.6.21
[INFO] [stderr]    Compiling signal-hook v0.1.16
[INFO] [stderr]    Compiling crossterm v0.17.5
[INFO] [stderr]    Compiling regex v1.3.3
[INFO] [stderr]    Compiling tui v0.9.5
[INFO] [stderr]    Compiling serialport v3.3.0
[INFO] [stderr]    Compiling serial-unit-testing v0.2.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.23s
[INFO] running `Command { std: "docker" "inspect" "103189f6bc05cc8a7a0deca7225416c5bd22926ab353c7dee00a11c0f957cd31", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "103189f6bc05cc8a7a0deca7225416c5bd22926ab353c7dee00a11c0f957cd31", kill_on_drop: false }`
[INFO] [stdout] 103189f6bc05cc8a7a0deca7225416c5bd22926ab353c7dee00a11c0f957cd31
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ca204fb0d84a2cd30ef41d55b45e4ba4e4808cc69b8a469508fb307b6b1bc496
[INFO] running `Command { std: "docker" "start" "-a" "ca204fb0d84a2cd30ef41d55b45e4ba4e4808cc69b8a469508fb307b6b1bc496", kill_on_drop: false }`
[INFO] [stderr]    Compiling serial-unit-testing v0.2.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.11s
[INFO] running `Command { std: "docker" "inspect" "ca204fb0d84a2cd30ef41d55b45e4ba4e4808cc69b8a469508fb307b6b1bc496", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca204fb0d84a2cd30ef41d55b45e4ba4e4808cc69b8a469508fb307b6b1bc496", kill_on_drop: false }`
[INFO] [stdout] ca204fb0d84a2cd30ef41d55b45e4ba4e4808cc69b8a469508fb307b6b1bc496
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 86c75a7c7b25c83057bf3e4294f6f651eed3f71ee440ac91bfd1bdb6d2a14c29
[INFO] running `Command { std: "docker" "start" "-a" "86c75a7c7b25c83057bf3e4294f6f651eed3f71ee440ac91bfd1bdb6d2a14c29", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/serial_unit_testing-35e76cd86d80e7f4)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/sut-7c9d168dc34dec8e)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests serial_unit_testing
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test src/serial/mod.rs - serial::Serial::open_with_settings (line 88) ... FAILED
[INFO] [stdout] test src/serial/mod.rs - serial::Serial::write_format (line 247) ... FAILED
[INFO] [stdout] test src/serial/mod.rs - serial::Serial::read (line 286) ... FAILED
[INFO] [stdout] test src/serial/mod.rs - serial::Serial::open (line 64) ... FAILED
[INFO] [stdout] test src/serial/mod.rs - serial::Serial::check (line 579) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/serial/mod.rs - serial::Serial::open_with_settings (line 88) stdout ----
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/serial/mod.rs:97:65
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let mut serial = Serial::open_with_settings("/dev/ttyACM0", &settings)?;
[INFO] [stdout]    |                                                                 ^^^^^^^^^ expected struct `Settings`, found `&Settings`
[INFO] [stdout]    |
[INFO] [stdout] help: consider removing the borrow
[INFO] [stdout]    |
[INFO] [stdout] 11 -     let mut serial = Serial::open_with_settings("/dev/ttyACM0", &settings)?;
[INFO] [stdout] 11 +     let mut serial = Serial::open_with_settings("/dev/ttyACM0", settings)?;
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/serial/mod.rs - serial::Serial::write_format (line 247) stdout ----
[INFO] [stdout] Test executable failed (exit code 1).
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] Error: Serial(Error { kind: Unknown, description: "No such file or directory" })
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] ---- src/serial/mod.rs - serial::Serial::read (line 286) stdout ----
[INFO] [stdout] Test executable failed (exit code 1).
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] Error: Serial(Error { kind: Unknown, description: "No such file or directory" })
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] ---- src/serial/mod.rs - serial::Serial::open (line 64) stdout ----
[INFO] [stdout] Test executable failed (exit code 1).
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] Error: Serial(Error { kind: Unknown, description: "No such file or directory" })
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] ---- src/serial/mod.rs - serial::Serial::check (line 579) stdout ----
[INFO] [stdout] Test executable failed (exit code 1).
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] Error: Serial(Error { kind: Unknown, description: "No such file or directory" })
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/serial/mod.rs - serial::Serial::check (line 579)
[INFO] [stdout]     src/serial/mod.rs - serial::Serial::open (line 64)
[INFO] [stdout]     src/serial/mod.rs - serial::Serial::open_with_settings (line 88)
[INFO] [stdout]     src/serial/mod.rs - serial::Serial::read (line 286)
[INFO] [stdout]     src/serial/mod.rs - serial::Serial::write_format (line 247)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 5 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.41s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "86c75a7c7b25c83057bf3e4294f6f651eed3f71ee440ac91bfd1bdb6d2a14c29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "86c75a7c7b25c83057bf3e4294f6f651eed3f71ee440ac91bfd1bdb6d2a14c29", kill_on_drop: false }`
[INFO] [stdout] 86c75a7c7b25c83057bf3e4294f6f651eed3f71ee440ac91bfd1bdb6d2a14c29