[INFO] crate serial-unit-testing 0.2.1 is already in cache
[INFO] checking serial-unit-testing-0.2.1 against try#3738e44c8fffe9e1fdfda9304a4df74ce7b29152 for pr-68746
[INFO] extracting crate serial-unit-testing 0.2.1 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate serial-unit-testing 0.2.1 on toolchain 3738e44c8fffe9e1fdfda9304a4df74ce7b29152
[INFO] running `"/workspace/cargo-home/bin/cargo" "+3738e44c8fffe9e1fdfda9304a4df74ce7b29152" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate serial-unit-testing 0.2.1
[INFO] finished tweaking crates.io crate serial-unit-testing 0.2.1
[INFO] tweaked toml for crates.io crate serial-unit-testing 0.2.1 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate serial-unit-testing 0.2.1 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+3738e44c8fffe9e1fdfda9304a4df74ce7b29152" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+3738e44c8fffe9e1fdfda9304a4df74ce7b29152" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 50cb1cc033da7d209b74c5634a0f2a0825742626faa0355a261ae6568291acb2
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "50cb1cc033da7d209b74c5634a0f2a0825742626faa0355a261ae6568291acb2"`
[INFO] [stderr]    Compiling winapi v0.3.7
[INFO] [stderr]     Checking rgb v0.8.13
[INFO] [stderr]     Checking unicode-segmentation v1.3.0
[INFO] [stderr]     Checking itertools v0.8.0
[INFO] [stderr]     Checking crossterm_utils v0.2.4
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking regex v1.2.1
[INFO] [stderr]     Checking serialport v3.3.0
[INFO] [stderr]     Checking crossterm_screen v0.2.5
[INFO] [stderr]     Checking crossterm_cursor v0.2.6
[INFO] [stderr]     Checking crossterm_style v0.3.3
[INFO] [stderr]     Checking crossterm_input v0.3.9
[INFO] [stderr]     Checking crossterm_terminal v0.2.6
[INFO] [stderr]     Checking cgmath v0.16.1
[INFO] [stderr]     Checking crossterm v0.9.6
[INFO] [stderr]     Checking tui v0.6.2
[INFO] [stderr]     Checking winconsole v0.10.0
[INFO] [stderr]     Checking colored v1.8.0
[INFO] [stderr]     Checking serial-unit-testing v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/error.rs:72:43
[INFO] [stderr]    |
[INFO] [stderr] 72 |             Error::Io(ref cause) => cause.description(),
[INFO] [stderr]    |                                           ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/error.rs:73:47
[INFO] [stderr]    |
[INFO] [stderr] 73 |             Error::Serial(ref cause) => cause.description(),
[INFO] [stderr]    |                                               ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/error.rs:74:44
[INFO] [stderr]    |
[INFO] [stderr] 74 |             Error::Num(ref cause) => cause.description(),
[INFO] [stderr]    |                                            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/error.rs:75:45
[INFO] [stderr]    |
[INFO] [stderr] 75 |             Error::Utf8(ref cause) => cause.description(),
[INFO] [stderr]    |                                             ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/error.rs:72:43
[INFO] [stderr]    |
[INFO] [stderr] 72 |             Error::Io(ref cause) => cause.description(),
[INFO] [stderr]    |                                           ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/error.rs:73:47
[INFO] [stderr]    |
[INFO] [stderr] 73 |             Error::Serial(ref cause) => cause.description(),
[INFO] [stderr]    |                                               ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/error.rs:74:44
[INFO] [stderr]    |
[INFO] [stderr] 74 |             Error::Num(ref cause) => cause.description(),
[INFO] [stderr]    |                                            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/error.rs:75:45
[INFO] [stderr]    |
[INFO] [stderr] 75 |             Error::Utf8(ref cause) => cause.description(),
[INFO] [stderr]    |                                             ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/monitor/mod.rs:69:75
[INFO] [stderr]    |
[INFO] [stderr] 69 |         Err(e) => return Err(format!("Unable to connect to port: {:?}", e.description()))
[INFO] [stderr]    |                                                                           ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/monitor/mod.rs:69:75
[INFO] [stderr]    |
[INFO] [stderr] 69 |         Err(e) => return Err(format!("Unable to connect to port: {:?}", e.description()))
[INFO] [stderr]    |                                                                           ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.70s
[INFO] running `"docker" "inspect" "50cb1cc033da7d209b74c5634a0f2a0825742626faa0355a261ae6568291acb2"`
[INFO] running `"docker" "rm" "-f" "50cb1cc033da7d209b74c5634a0f2a0825742626faa0355a261ae6568291acb2"`
[INFO] [stdout] 50cb1cc033da7d209b74c5634a0f2a0825742626faa0355a261ae6568291acb2