[INFO] fetching crate serial-unit-testing 0.2.4...
[INFO] testing serial-unit-testing-0.2.4 against try#8262275854dc0e5381c9d42d56257d94932c5a87 for pr-90799
[INFO] extracting crate serial-unit-testing 0.2.4 into /workspace/builds/worker-59/source
[INFO] validating manifest of crates.io crate serial-unit-testing 0.2.4 on toolchain 8262275854dc0e5381c9d42d56257d94932c5a87
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "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-59/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" "+8262275854dc0e5381c9d42d56257d94932c5a87" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 06d8e2bc240bfdaef55bdfcb0535cabc9b8f752da0e8d9ce0af3ff5c241048a6
[INFO] running `Command { std: "docker" "start" "-a" "06d8e2bc240bfdaef55bdfcb0535cabc9b8f752da0e8d9ce0af3ff5c241048a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "06d8e2bc240bfdaef55bdfcb0535cabc9b8f752da0e8d9ce0af3ff5c241048a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06d8e2bc240bfdaef55bdfcb0535cabc9b8f752da0e8d9ce0af3ff5c241048a6", kill_on_drop: false }`
[INFO] [stdout] 06d8e2bc240bfdaef55bdfcb0535cabc9b8f752da0e8d9ce0af3ff5c241048a6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/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=forbid" "-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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b96c75a6eabb28251430f8105c1c95bfd294711eed6d97bf4fe9cec201169182
[INFO] running `Command { std: "docker" "start" "-a" "b96c75a6eabb28251430f8105c1c95bfd294711eed6d97bf4fe9cec201169182", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling cfg-if v0.1.9
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling pkg-config v0.3.15
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling slab v0.4.2
[INFO] [stderr]    Compiling scopeguard v1.0.0
[INFO] [stderr]    Compiling arc-swap v0.4.4
[INFO] [stderr]    Compiling smallvec v1.1.0
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]    Compiling unicode-width v0.1.6
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling either v1.5.2
[INFO] [stderr]    Compiling vec_map v0.8.1
[INFO] [stderr]    Compiling cassowary v0.3.0
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling unicode-segmentation v1.3.0
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling regex-syntax v0.6.13
[INFO] [stderr]    Compiling lock_api v0.3.3
[INFO] [stderr]    Compiling thread_local v1.0.1
[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 aho-corasick v0.7.6
[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 tui v0.9.5
[INFO] [stderr]    Compiling regex v1.3.3
[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 10.02s
[INFO] running `Command { std: "docker" "inspect" "b96c75a6eabb28251430f8105c1c95bfd294711eed6d97bf4fe9cec201169182", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b96c75a6eabb28251430f8105c1c95bfd294711eed6d97bf4fe9cec201169182", kill_on_drop: false }`
[INFO] [stdout] b96c75a6eabb28251430f8105c1c95bfd294711eed6d97bf4fe9cec201169182
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/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=forbid" "-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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2407a68a6fbb8de372372c98109d36f157a0cf6ff17d575aa3383d158bfee40b
[INFO] running `Command { std: "docker" "start" "-a" "2407a68a6fbb8de372372c98109d36f157a0cf6ff17d575aa3383d158bfee40b", 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 0.63s
[INFO] running `Command { std: "docker" "inspect" "2407a68a6fbb8de372372c98109d36f157a0cf6ff17d575aa3383d158bfee40b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2407a68a6fbb8de372372c98109d36f157a0cf6ff17d575aa3383d158bfee40b", kill_on_drop: false }`
[INFO] [stdout] 2407a68a6fbb8de372372c98109d36f157a0cf6ff17d575aa3383d158bfee40b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/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=forbid" "-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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 32624d109cb914caf2f75414d5d5b45c62778e8d3d7a198e50a3dea455fae3d5
[INFO] running `Command { std: "docker" "start" "-a" "32624d109cb914caf2f75414d5d5b45c62778e8d3d7a198e50a3dea455fae3d5", 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-e32ef6b9076cef42)
[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-33152b2c7d88bfcb)
[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::check (line 579) ... 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] 
[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::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] ---- 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] 
[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 0.62s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "32624d109cb914caf2f75414d5d5b45c62778e8d3d7a198e50a3dea455fae3d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "32624d109cb914caf2f75414d5d5b45c62778e8d3d7a198e50a3dea455fae3d5", kill_on_drop: false }`
[INFO] [stdout] 32624d109cb914caf2f75414d5d5b45c62778e8d3d7a198e50a3dea455fae3d5