[INFO] cloning repository https://github.com/ConchuOD/lab
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ConchuOD/lab" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FConchuOD%2Flab", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FConchuOD%2Flab'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 749fb3d94382f86a5f07379c1959e71ad92987b8
[INFO] checking ConchuOD/lab 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%2FConchuOD%2Flab" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/ConchuOD/lab
[INFO] finished tweaking git repo https://github.com/ConchuOD/lab
[INFO] tweaked toml for git repo https://github.com/ConchuOD/lab written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ConchuOD/lab 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/ConchuOD/lab 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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 847a0b9f6f58342b7e867b711d87ea6eb31f4d9b34cab8c8d970f13abc468420
[INFO] running `Command { std: "docker" "start" "-a" "847a0b9f6f58342b7e867b711d87ea6eb31f4d9b34cab8c8d970f13abc468420", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "847a0b9f6f58342b7e867b711d87ea6eb31f4d9b34cab8c8d970f13abc468420", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "847a0b9f6f58342b7e867b711d87ea6eb31f4d9b34cab8c8d970f13abc468420", kill_on_drop: false }`
[INFO] [stdout] 847a0b9f6f58342b7e867b711d87ea6eb31f4d9b34cab8c8d970f13abc468420
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] f6a044fb2fe2d4ba6e778932a1fc2272f78397b9ede05ec0ed4e3ebb6b1c3b77
[INFO] running `Command { std: "docker" "start" "-a" "f6a044fb2fe2d4ba6e778932a1fc2272f78397b9ede05ec0ed4e3ebb6b1c3b77", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.42
[INFO] [stderr]    Compiling signal-hook v0.3.14
[INFO] [stderr]    Compiling syn v1.0.98
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking mio v0.8.4
[INFO] [stderr]     Checking mio v0.7.14
[INFO] [stderr]     Checking parking_lot_core v0.8.5
[INFO] [stderr]     Checking object v0.29.0
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]    Compiling serde v1.0.140
[INFO] [stderr]     Checking aho-corasick v0.7.19
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking regex-syntax v0.6.27
[INFO] [stderr]     Checking iana-time-zone v0.1.51
[INFO] [stderr]     Checking os_str_bytes v6.2.0
[INFO] [stderr]     Checking nix v0.14.1
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]     Checking tempfile v3.3.0
[INFO] [stderr]     Checking termion v1.5.6
[INFO] [stderr]     Checking chrono v0.4.22
[INFO] [stderr]     Checking clap_lex v0.2.4
[INFO] [stderr]     Checking yaml-rust v0.4.5
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking thread_local v1.1.4
[INFO] [stderr]     Checking libudev v0.3.0
[INFO] [stderr]     Checking nix v0.24.2
[INFO] [stderr]     Checking ryu v1.0.10
[INFO] [stderr]     Checking cassowary v0.3.0
[INFO] [stderr]     Checking unicode-segmentation v1.9.0
[INFO] [stderr]     Checking signal-hook-mio v0.2.3
[INFO] [stderr]     Checking crossterm v0.22.1
[INFO] [stderr]     Checking crossterm v0.23.2
[INFO] [stderr]    Compiling quote v1.0.20
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking tui v0.17.0
[INFO] [stderr]     Checking stderrlog v0.5.3
[INFO] [stderr]     Checking regex v1.6.0
[INFO] [stderr]     Checking serialport v4.2.0
[INFO] [stderr]     Checking backtrace v0.3.66
[INFO] [stderr]     Checking rexpect v0.4.0
[INFO] [stderr]     Checking serde_yaml v0.8.26
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling clap_derive v3.2.15
[INFO] [stderr]     Checking clap v3.2.16
[INFO] [stderr]     Checking lab v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not compile `lab` (bin "lab") due to 3 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: field `powered` is never read
[INFO] [stdout]   --> boards/mod.rs:41:6
[INFO] [stdout]    |
[INFO] [stdout] 36 | pub struct Board {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 41 |     pub powered: bool,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Board` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> main.rs:14:2
[INFO] [stdout]    |
[INFO] [stdout] 14 |     config: 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<std::string::String, Infallible>
[INFO] [stdout]   --> main.rs:18:2
[INFO] [stdout]    |
[INFO] [stdout] 18 |     board: String,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> main.rs:22:2
[INFO] [stdout]    |
[INFO] [stdout] 22 |     function: String,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `powered` is never read
[INFO] [stdout]   --> boards/mod.rs:41:6
[INFO] [stdout]    |
[INFO] [stdout] 36 | pub struct Board {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 41 |     pub powered: bool,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Board` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> main.rs:14:2
[INFO] [stdout]    |
[INFO] [stdout] 14 |     config: 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<std::string::String, Infallible>
[INFO] [stdout]   --> main.rs:18:2
[INFO] [stdout]    |
[INFO] [stdout] 18 |     board: String,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> main.rs:22:2
[INFO] [stdout]    |
[INFO] [stdout] 22 |     function: String,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `lab` (bin "lab" test) due to 3 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "f6a044fb2fe2d4ba6e778932a1fc2272f78397b9ede05ec0ed4e3ebb6b1c3b77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6a044fb2fe2d4ba6e778932a1fc2272f78397b9ede05ec0ed4e3ebb6b1c3b77", kill_on_drop: false }`
[INFO] [stdout] f6a044fb2fe2d4ba6e778932a1fc2272f78397b9ede05ec0ed4e3ebb6b1c3b77