[INFO] fetching crate ascii_converter 0.3.0...
[INFO] checking ascii_converter-0.3.0 against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145342-1
[INFO] extracting crate ascii_converter 0.3.0 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate ascii_converter 0.3.0
[INFO] finished tweaking crates.io crate ascii_converter 0.3.0
[INFO] tweaked toml for crates.io crate ascii_converter 0.3.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate ascii_converter 0.3.0 on toolchain 350d0ef0ec0493e6d21cfb265cb8211a0e74d766
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate ascii_converter 0.3.0 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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 84c5069384281af89d00dbce4e4699ed50219d8a206d2dc6386dd5620558a353
[INFO] running `Command { std: "docker" "start" "-a" "84c5069384281af89d00dbce4e4699ed50219d8a206d2dc6386dd5620558a353", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "84c5069384281af89d00dbce4e4699ed50219d8a206d2dc6386dd5620558a353", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84c5069384281af89d00dbce4e4699ed50219d8a206d2dc6386dd5620558a353", kill_on_drop: false }`
[INFO] [stdout] 84c5069384281af89d00dbce4e4699ed50219d8a206d2dc6386dd5620558a353
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9fe94f0841d734569e11ddfd9aa3e028d49c8bd4f4b01596163d221a87a163fa
[INFO] running `Command { std: "docker" "start" "-a" "9fe94f0841d734569e11ddfd9aa3e028d49c8bd4f4b01596163d221a87a163fa", kill_on_drop: false }`
[INFO] [stderr]     Checking ascii_converter v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/lib.rs:121:22
[INFO] [stdout]     |
[INFO] [stdout] 121 |             Ok(d) => (decimal.push(d)),
[INFO] [stdout]     |                      ^               ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 121 -             Ok(d) => (decimal.push(d)),
[INFO] [stdout] 121 +             Ok(d) => decimal.push(d),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/lib.rs:412:22
[INFO] [stdout]     |
[INFO] [stdout] 412 |             Ok(t) => (decimals.push(t)),
[INFO] [stdout]     |                      ^                ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 412 -             Ok(t) => (decimals.push(t)),
[INFO] [stdout] 412 +             Ok(t) => decimals.push(t),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/lib.rs:121:22
[INFO] [stdout]     |
[INFO] [stdout] 121 |             Ok(d) => (decimal.push(d)),
[INFO] [stdout]     |                      ^               ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 121 -             Ok(d) => (decimal.push(d)),
[INFO] [stdout] 121 +             Ok(d) => decimal.push(d),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/lib.rs:412:22
[INFO] [stdout]     |
[INFO] [stdout] 412 |             Ok(t) => (decimals.push(t)),
[INFO] [stdout]     |                      ^                ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 412 -             Ok(t) => (decimals.push(t)),
[INFO] [stdout] 412 +             Ok(t) => decimals.push(t),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.31s
[INFO] running `Command { std: "docker" "inspect" "9fe94f0841d734569e11ddfd9aa3e028d49c8bd4f4b01596163d221a87a163fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9fe94f0841d734569e11ddfd9aa3e028d49c8bd4f4b01596163d221a87a163fa", kill_on_drop: false }`
[INFO] [stdout] 9fe94f0841d734569e11ddfd9aa3e028d49c8bd4f4b01596163d221a87a163fa