[INFO] fetching crate argh 0.1.6...
[INFO] checking argh-0.1.6 against master#936f2600b6c903b04387f74ed5cbce88bb06d243 for pr-91141
[INFO] extracting crate argh 0.1.6 into /workspace/builds/worker-119/source
[INFO] validating manifest of crates.io crate argh 0.1.6 on toolchain 936f2600b6c903b04387f74ed5cbce88bb06d243
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate argh 0.1.6
[INFO] finished tweaking crates.io crate argh 0.1.6
[INFO] tweaked toml for crates.io crate argh 0.1.6 written to /workspace/builds/worker-119/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "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-119/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-119/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 43b914ded88553b6a4314529a5301fd510db182b82c4855f609e7af7bb5eb8b0
[INFO] running `Command { std: "docker" "start" "-a" "43b914ded88553b6a4314529a5301fd510db182b82c4855f609e7af7bb5eb8b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "43b914ded88553b6a4314529a5301fd510db182b82c4855f609e7af7bb5eb8b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "43b914ded88553b6a4314529a5301fd510db182b82c4855f609e7af7bb5eb8b0", kill_on_drop: false }`
[INFO] [stdout] 43b914ded88553b6a4314529a5301fd510db182b82c4855f609e7af7bb5eb8b0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-119/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-119/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 40cd954bf4a84b042a9158ee1b31dfeb2f9fecc8dce59dd7dd005560813df44d
[INFO] running `Command { std: "docker" "start" "-a" "40cd954bf4a84b042a9158ee1b31dfeb2f9fecc8dce59dd7dd005560813df44d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.82
[INFO] [stderr]    Compiling argh_shared v0.1.6
[INFO] [stderr]    Compiling argh_derive v0.1.6
[INFO] [stderr]     Checking argh v0.1.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `msg`
[INFO] [stdout]    --> tests/lib.rs:179:9
[INFO] [stdout]     |
[INFO] [stdout] 179 |         msg: String,
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `a`
[INFO] [stdout]    --> tests/lib.rs:538:9
[INFO] [stdout]     |
[INFO] [stdout] 538 |         a: bool,
[INFO] [stdout]     |         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `b`
[INFO] [stdout]    --> tests/lib.rs:541:9
[INFO] [stdout]     |
[INFO] [stdout] 541 |         b: bool,
[INFO] [stdout]     |         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `foo`
[INFO] [stdout]    --> tests/lib.rs:557:9
[INFO] [stdout]     |
[INFO] [stdout] 557 |         foo: String,
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `sub`
[INFO] [stdout]    --> tests/lib.rs:665:9
[INFO] [stdout]     |
[INFO] [stdout] 665 |         sub: HelpFirstSub,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `sub`
[INFO] [stdout]    --> tests/lib.rs:673:9
[INFO] [stdout]     |
[INFO] [stdout] 673 |         sub: HelpSecondSub,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `msg`
[INFO] [stdout]    --> tests/lib.rs:908:9
[INFO] [stdout]     |
[INFO] [stdout] 908 |         msg: Option<String>,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `msg`
[INFO] [stdout]    --> tests/lib.rs:922:9
[INFO] [stdout]     |
[INFO] [stdout] 922 |         msg: Option<String>,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `msg`
[INFO] [stdout]    --> tests/lib.rs:936:9
[INFO] [stdout]     |
[INFO] [stdout] 936 |         msg: String,
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `delivery`
[INFO] [stdout]    --> tests/lib.rs:940:9
[INFO] [stdout]     |
[INFO] [stdout] 940 |         delivery: String,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `msg`
[INFO] [stdout]    --> tests/lib.rs:956:9
[INFO] [stdout]     |
[INFO] [stdout] 956 |         msg: String,
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `delivery`
[INFO] [stdout]    --> tests/lib.rs:960:9
[INFO] [stdout]     |
[INFO] [stdout] 960 |         delivery: Option<String>,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `faster`
[INFO] [stdout]    --> tests/lib.rs:979:9
[INFO] [stdout]     |
[INFO] [stdout] 979 |         faster: bool,
[INFO] [stdout]     |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `speed`
[INFO] [stdout]    --> tests/lib.rs:996:9
[INFO] [stdout]     |
[INFO] [stdout] 996 |         speed: u8,
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `speed`
[INFO] [stdout]     --> tests/lib.rs:1010:9
[INFO] [stdout]      |
[INFO] [stdout] 1010 |         speed: Vec<u8>,
[INFO] [stdout]      |         ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `speed`
[INFO] [stdout]     --> tests/lib.rs:1024:9
[INFO] [stdout]      |
[INFO] [stdout] 1024 |         speed: u8,
[INFO] [stdout]      |         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `speed`
[INFO] [stdout]     --> tests/lib.rs:1044:9
[INFO] [stdout]      |
[INFO] [stdout] 1044 |         speed: u8,
[INFO] [stdout]      |         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `direction`
[INFO] [stdout]     --> tests/lib.rs:1048:9
[INFO] [stdout]      |
[INFO] [stdout] 1048 |         direction: String,
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `speed`
[INFO] [stdout]     --> tests/lib.rs:1062:9
[INFO] [stdout]      |
[INFO] [stdout] 1062 |         speed: u8,
[INFO] [stdout]      |         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `direction`
[INFO] [stdout]     --> tests/lib.rs:1066:9
[INFO] [stdout]      |
[INFO] [stdout] 1066 |         direction: String,
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `speed`
[INFO] [stdout]     --> tests/lib.rs:1080:9
[INFO] [stdout]      |
[INFO] [stdout] 1080 |         speed: u8,
[INFO] [stdout]      |         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `direction`
[INFO] [stdout]     --> tests/lib.rs:1084:9
[INFO] [stdout]      |
[INFO] [stdout] 1084 |         direction: Option<String>,
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `speed`
[INFO] [stdout]     --> tests/lib.rs:1098:9
[INFO] [stdout]      |
[INFO] [stdout] 1098 |         speed: u8,
[INFO] [stdout]      |         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `means`
[INFO] [stdout]     --> tests/lib.rs:1102:9
[INFO] [stdout]      |
[INFO] [stdout] 1102 |         means: MeansSubcommand,
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `music`
[INFO] [stdout]     --> tests/lib.rs:1120:9
[INFO] [stdout]      |
[INFO] [stdout] 1120 |         music: String,
[INFO] [stdout]      |         ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `speed`
[INFO] [stdout]     --> tests/lib.rs:1144:9
[INFO] [stdout]      |
[INFO] [stdout] 1144 |         speed: u8,
[INFO] [stdout]      |         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `means`
[INFO] [stdout]     --> tests/lib.rs:1148:9
[INFO] [stdout]      |
[INFO] [stdout] 1148 |         means: MeansSubcommand,
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `music`
[INFO] [stdout]     --> tests/lib.rs:1165:9
[INFO] [stdout]      |
[INFO] [stdout] 1165 |         music: String,
[INFO] [stdout]      |         ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 28 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.64s
[INFO] running `Command { std: "docker" "inspect" "40cd954bf4a84b042a9158ee1b31dfeb2f9fecc8dce59dd7dd005560813df44d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "40cd954bf4a84b042a9158ee1b31dfeb2f9fecc8dce59dd7dd005560813df44d", kill_on_drop: false }`
[INFO] [stdout] 40cd954bf4a84b042a9158ee1b31dfeb2f9fecc8dce59dd7dd005560813df44d