[INFO] cloning repository https://github.com/autolaborcenter/serial-port
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/autolaborcenter/serial-port" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fautolaborcenter%2Fserial-port", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fautolaborcenter%2Fserial-port'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] da055e8f6521bf95c9b498b44dc1a73dcd4666be
[INFO] testing autolaborcenter/serial-port against beta-2022-02-22 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fautolaborcenter%2Fserial-port" "/workspace/builds/worker-95/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-95/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/autolaborcenter/serial-port 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 git repo https://github.com/autolaborcenter/serial-port
[INFO] finished tweaking git repo https://github.com/autolaborcenter/serial-port
[INFO] tweaked toml for git repo https://github.com/autolaborcenter/serial-port written to /workspace/builds/worker-95/source/Cargo.toml
[INFO] crate git repo https://github.com/autolaborcenter/serial-port 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]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-95/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-95/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] 70faa4b08ae53d1ec8d8af3a97ba7380251a5e89710ab23ed7ae205c78d8628d
[INFO] running `Command { std: "docker" "start" "-a" "70faa4b08ae53d1ec8d8af3a97ba7380251a5e89710ab23ed7ae205c78d8628d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "70faa4b08ae53d1ec8d8af3a97ba7380251a5e89710ab23ed7ae205c78d8628d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "70faa4b08ae53d1ec8d8af3a97ba7380251a5e89710ab23ed7ae205c78d8628d", kill_on_drop: false }`
[INFO] [stdout] 70faa4b08ae53d1ec8d8af3a97ba7380251a5e89710ab23ed7ae205c78d8628d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-95/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-95/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] 48581f92068b56f9b6ba6ca9782fb56e54282abe9eacf2a8aeb26724ede2b275
[INFO] running `Command { std: "docker" "start" "-a" "48581f92068b56f9b6ba6ca9782fb56e54282abe9eacf2a8aeb26724ede2b275", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling libc v0.2.118
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling nix v0.23.1
[INFO] [stderr]    Compiling serial-port v0.1.32 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]  --> src/bin/example.rs:4:27
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let port = Port::open(&4, 115200, u32::MAX).unwrap();
[INFO] [stdout]   |                           ^^ expected struct `String`, found integer
[INFO] [stdout]   |
[INFO] [stdout]   = note: expected reference `&String`
[INFO] [stdout]              found reference `&{integer}`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `serial-port` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "48581f92068b56f9b6ba6ca9782fb56e54282abe9eacf2a8aeb26724ede2b275", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48581f92068b56f9b6ba6ca9782fb56e54282abe9eacf2a8aeb26724ede2b275", kill_on_drop: false }`
[INFO] [stdout] 48581f92068b56f9b6ba6ca9782fb56e54282abe9eacf2a8aeb26724ede2b275