[INFO] fetching crate serial-unit-testing 0.2.4...
[INFO] testing serial-unit-testing-0.2.4 against beta-2022-02-22 for beta-1.60-1
[INFO] extracting crate serial-unit-testing 0.2.4 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate serial-unit-testing 0.2.4 on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "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-6/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-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tui v0.9.5
[INFO] [stderr]   Downloaded parking_lot_core v0.7.0
[INFO] [stderr]   Downloaded smallvec v1.1.0
[INFO] [stderr]   Downloaded pkg-config v0.3.15
[INFO] [stderr]   Downloaded parking_lot v0.10.0
[INFO] [stderr]   Downloaded crossterm v0.17.5
[INFO] [stderr]   Downloaded crossterm_winapi v0.6.1
[INFO] [stderr]   Downloaded signal-hook v0.1.16
[INFO] [stderr]   Downloaded signal-hook-registry v1.2.0
[INFO] [stderr]   Downloaded arc-swap v0.4.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f6d762ba7c81b7db8c6713197af69de791df1d27e81beffe4a801d28c8b11b36
[INFO] running `Command { std: "docker" "start" "-a" "f6d762ba7c81b7db8c6713197af69de791df1d27e81beffe4a801d28c8b11b36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f6d762ba7c81b7db8c6713197af69de791df1d27e81beffe4a801d28c8b11b36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6d762ba7c81b7db8c6713197af69de791df1d27e81beffe4a801d28c8b11b36", kill_on_drop: false }`
[INFO] [stdout] f6d762ba7c81b7db8c6713197af69de791df1d27e81beffe4a801d28c8b11b36
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 156197a4d062950e1ab5f3711b73ec56e01a573435df084d09d58e0a99096bd9
[INFO] running `Command { std: "docker" "start" "-a" "156197a4d062950e1ab5f3711b73ec56e01a573435df084d09d58e0a99096bd9", 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 smallvec v1.1.0
[INFO] [stderr]    Compiling unicode-width v0.1.6
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]    Compiling either v1.5.2
[INFO] [stderr]    Compiling regex-syntax v0.6.13
[INFO] [stderr]    Compiling cassowary v0.3.0
[INFO] [stderr]    Compiling unicode-segmentation v1.3.0
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling vec_map v0.8.1
[INFO] [stderr]    Compiling lock_api v0.3.3
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling aho-corasick v0.7.6
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]    Compiling net2 v0.2.33
[INFO] [stderr]    Compiling iovec v0.1.4
[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 colored v1.9.2
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling mio v0.6.21
[INFO] [stderr]    Compiling parking_lot v0.10.0
[INFO] [stderr]    Compiling libudev v0.2.0
[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 9.19s
[INFO] running `Command { std: "docker" "inspect" "156197a4d062950e1ab5f3711b73ec56e01a573435df084d09d58e0a99096bd9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "156197a4d062950e1ab5f3711b73ec56e01a573435df084d09d58e0a99096bd9", kill_on_drop: false }`
[INFO] [stdout] 156197a4d062950e1ab5f3711b73ec56e01a573435df084d09d58e0a99096bd9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 107f14df8a0ae0461888e4624967fb4f5e12cf7161b396e7684414c93d70ec4f
[INFO] running `Command { std: "docker" "start" "-a" "107f14df8a0ae0461888e4624967fb4f5e12cf7161b396e7684414c93d70ec4f", 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 1.27s
[INFO] running `Command { std: "docker" "inspect" "107f14df8a0ae0461888e4624967fb4f5e12cf7161b396e7684414c93d70ec4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "107f14df8a0ae0461888e4624967fb4f5e12cf7161b396e7684414c93d70ec4f", kill_on_drop: false }`
[INFO] [stdout] 107f14df8a0ae0461888e4624967fb4f5e12cf7161b396e7684414c93d70ec4f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6b3144aadd58c33f659a76b54ab173ddf9545d4b877ee8bb714a3dc41b65a069
[INFO] running `Command { std: "docker" "start" "-a" "6b3144aadd58c33f659a76b54ab173ddf9545d4b877ee8bb714a3dc41b65a069", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.15s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/serial_unit_testing-e65e85cfcfe85655)
[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-c530496d62d1b542)
[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::open (line 64) ... FAILED
[INFO] [stdout] test src/serial/mod.rs - serial::Serial::read (line 286) ... FAILED
[INFO] [stdout] test src/serial/mod.rs - serial::Serial::check (line 579) ... FAILED
[INFO] [stdout] test src/serial/mod.rs - serial::Serial::write_format (line 247) ... 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::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::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::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] ---- 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] 
[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 1.52s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "6b3144aadd58c33f659a76b54ab173ddf9545d4b877ee8bb714a3dc41b65a069", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b3144aadd58c33f659a76b54ab173ddf9545d4b877ee8bb714a3dc41b65a069", kill_on_drop: false }`
[INFO] [stdout] 6b3144aadd58c33f659a76b54ab173ddf9545d4b877ee8bb714a3dc41b65a069