[INFO] cloning repository https://github.com/hw0lff/serial-console
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hw0lff/serial-console" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhw0lff%2Fserial-console", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhw0lff%2Fserial-console'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] df8c5236879d18e6eb210b62dd7521ccec33bf36
[INFO] checking hw0lff/serial-console against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhw0lff%2Fserial-console" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/hw0lff/serial-console
[INFO] finished tweaking git repo https://github.com/hw0lff/serial-console
[INFO] tweaked toml for git repo https://github.com/hw0lff/serial-console written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/hw0lff/serial-console on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/hw0lff/serial-console already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2e587fbfdbdbe950a4e5301b00522452a497a215ac3ee8ccf1126d27ec51a9df
[INFO] running `Command { std: "docker" "start" "-a" "2e587fbfdbdbe950a4e5301b00522452a497a215ac3ee8ccf1126d27ec51a9df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2e587fbfdbdbe950a4e5301b00522452a497a215ac3ee8ccf1126d27ec51a9df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e587fbfdbdbe950a4e5301b00522452a497a215ac3ee8ccf1126d27ec51a9df", kill_on_drop: false }`
[INFO] [stdout] 2e587fbfdbdbe950a4e5301b00522452a497a215ac3ee8ccf1126d27ec51a9df
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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 -Dunmustuse_in_always_ok" "-e" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 462d60dc549f6642766731955f7d3e52ff517f8e0994ceac99f85b90bd8c0b93
[INFO] running `Command { std: "docker" "start" "-a" "462d60dc549f6642766731955f7d3e52ff517f8e0994ceac99f85b90bd8c0b93", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.113
[INFO] [stderr]    Compiling pkg-config v0.3.24
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling indexmap v1.8.0
[INFO] [stderr]    Compiling quote v1.0.14
[INFO] [stderr]    Compiling nix v0.16.1
[INFO] [stderr]     Checking numtoa v0.1.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking termion v1.5.6
[INFO] [stderr]     Checking libudev v0.2.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking serialport v4.0.1
[INFO] [stderr]    Compiling clap_derive v3.0.6
[INFO] [stderr]     Checking clap v3.0.10
[INFO] [stderr]     Checking serial-console v1.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:49:5
[INFO] [stdout]    |
[INFO] [stdout] 49 | /     /// Set the parity checking mode
[INFO] [stdout] 50 | |     #[clap(
[INFO] [stdout] 51 | |         name = "parity",
[INFO] [stdout] 52 | |         default_value = "N",
[INFO] [stdout] ...  |
[INFO] [stdout] 62 | |     )]
[INFO] [stdout] 63 | |     parity: String,
[INFO] [stdout]    | |__________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:71:5
[INFO] [stdout]    |
[INFO] [stdout] 71 | /     /// Set the flow control mode
[INFO] [stdout] 72 | |     #[clap(
[INFO] [stdout] 73 | |         name = "flow control",
[INFO] [stdout] 74 | |         default_value = "N",
[INFO] [stdout] ...  |
[INFO] [stdout] 84 | |     )]
[INFO] [stdout] 85 | |     flow_control: String,
[INFO] [stdout]    | |________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `serial-console` (bin "scip") due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:49:5
[INFO] [stdout]    |
[INFO] [stdout] 49 | /     /// Set the parity checking mode
[INFO] [stdout] 50 | |     #[clap(
[INFO] [stdout] 51 | |         name = "parity",
[INFO] [stdout] 52 | |         default_value = "N",
[INFO] [stdout] ...  |
[INFO] [stdout] 62 | |     )]
[INFO] [stdout] 63 | |     parity: String,
[INFO] [stdout]    | |__________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:71:5
[INFO] [stdout]    |
[INFO] [stdout] 71 | /     /// Set the flow control mode
[INFO] [stdout] 72 | |     #[clap(
[INFO] [stdout] 73 | |         name = "flow control",
[INFO] [stdout] 74 | |         default_value = "N",
[INFO] [stdout] ...  |
[INFO] [stdout] 84 | |     )]
[INFO] [stdout] 85 | |     flow_control: String,
[INFO] [stdout]    | |________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `serial-console` (bin "scip" test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "462d60dc549f6642766731955f7d3e52ff517f8e0994ceac99f85b90bd8c0b93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "462d60dc549f6642766731955f7d3e52ff517f8e0994ceac99f85b90bd8c0b93", kill_on_drop: false }`
[INFO] [stdout] 462d60dc549f6642766731955f7d3e52ff517f8e0994ceac99f85b90bd8c0b93