[INFO] fetching crate argser 0.2.3...
[INFO] checking argser-0.2.3 against try#cac44d9528e3bbbdaa1537d187bd489ccc5de18c for pr-91141
[INFO] extracting crate argser 0.2.3 into /workspace/builds/worker-67/source
[INFO] validating manifest of crates.io crate argser 0.2.3 on toolchain cac44d9528e3bbbdaa1537d187bd489ccc5de18c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate argser 0.2.3
[INFO] finished tweaking crates.io crate argser 0.2.3
[INFO] tweaked toml for crates.io crate argser 0.2.3 written to /workspace/builds/worker-67/source/Cargo.toml
[INFO] crate crates.io crate argser 0.2.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded argser-macros v0.2.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/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" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9e7c86d2e74f37eb057d1e4358c4e1fe3e35cb7e0cc78bbaddcbc139f4000524
[INFO] running `Command { std: "docker" "start" "-a" "9e7c86d2e74f37eb057d1e4358c4e1fe3e35cb7e0cc78bbaddcbc139f4000524", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9e7c86d2e74f37eb057d1e4358c4e1fe3e35cb7e0cc78bbaddcbc139f4000524", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e7c86d2e74f37eb057d1e4358c4e1fe3e35cb7e0cc78bbaddcbc139f4000524", kill_on_drop: false }`
[INFO] [stdout] 9e7c86d2e74f37eb057d1e4358c4e1fe3e35cb7e0cc78bbaddcbc139f4000524
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/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" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ae25b5790c0c93e179d87640d82aed59de94a1088f6ab494268aaa97d85c0809
[INFO] running `Command { std: "docker" "start" "-a" "ae25b5790c0c93e179d87640d82aed59de94a1088f6ab494268aaa97d85c0809", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.75
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling argser-macros v0.2.2
[INFO] [stderr]     Checking argser v0.2.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `name`
[INFO] [stdout]  --> examples/simple_ci.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     name: 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: `sub`
[INFO] [stdout]  --> examples/simple_ci.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     sub: SubCategory,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `optional`
[INFO] [stdout]   --> examples/simple_ci.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     optional: Option<String>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `names`
[INFO] [stdout]   --> examples/simple_ci.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     names: Vec<String>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `other`
[INFO] [stdout]   --> examples/simple_ci.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     other: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.12s
[INFO] running `Command { std: "docker" "inspect" "ae25b5790c0c93e179d87640d82aed59de94a1088f6ab494268aaa97d85c0809", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae25b5790c0c93e179d87640d82aed59de94a1088f6ab494268aaa97d85c0809", kill_on_drop: false }`
[INFO] [stdout] ae25b5790c0c93e179d87640d82aed59de94a1088f6ab494268aaa97d85c0809