[INFO] fetching crate hex_fmt 0.3.0...
[INFO] checking hex_fmt-0.3.0 against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145342-1
[INFO] extracting crate hex_fmt 0.3.0 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate hex_fmt 0.3.0
[INFO] finished tweaking crates.io crate hex_fmt 0.3.0
[INFO] tweaked toml for crates.io crate hex_fmt 0.3.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate hex_fmt 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 6942116ee0d2611fa9011670f0421a41b1982cd78274550570b16e27750eb7f2
[INFO] running `Command { std: "docker" "start" "-a" "6942116ee0d2611fa9011670f0421a41b1982cd78274550570b16e27750eb7f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6942116ee0d2611fa9011670f0421a41b1982cd78274550570b16e27750eb7f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6942116ee0d2611fa9011670f0421a41b1982cd78274550570b16e27750eb7f2", kill_on_drop: false }`
[INFO] [stdout] 6942116ee0d2611fa9011670f0421a41b1982cd78274550570b16e27750eb7f2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] c17202c6885fdf8b6ca1235affde9a34c202e38b2b84aef764ccfa7f2e31c18f
[INFO] running `Command { std: "docker" "start" "-a" "c17202c6885fdf8b6ca1235affde9a34c202e38b2b84aef764ccfa7f2e31c18f", kill_on_drop: false }`
[INFO] [stderr]     Checking hex_fmt v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]    --> src/lib.rs:197:38
[INFO] [stdout]     |
[INFO] [stdout] 197 |             Self::fmt_digit(f, bytes[(bytes.len() - right / 2 - 1)] & 0x0f)?;
[INFO] [stdout]     |                                      ^                           ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 197 -             Self::fmt_digit(f, bytes[(bytes.len() - right / 2 - 1)] & 0x0f)?;
[INFO] [stdout] 197 +             Self::fmt_digit(f, bytes[bytes.len() - right / 2 - 1] & 0x0f)?;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]    --> src/lib.rs:197:38
[INFO] [stdout]     |
[INFO] [stdout] 197 |             Self::fmt_digit(f, bytes[(bytes.len() - right / 2 - 1)] & 0x0f)?;
[INFO] [stdout]     |                                      ^                           ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 197 -             Self::fmt_digit(f, bytes[(bytes.len() - right / 2 - 1)] & 0x0f)?;
[INFO] [stdout] 197 +             Self::fmt_digit(f, bytes[bytes.len() - right / 2 - 1] & 0x0f)?;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.25s
[INFO] running `Command { std: "docker" "inspect" "c17202c6885fdf8b6ca1235affde9a34c202e38b2b84aef764ccfa7f2e31c18f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c17202c6885fdf8b6ca1235affde9a34c202e38b2b84aef764ccfa7f2e31c18f", kill_on_drop: false }`
[INFO] [stdout] c17202c6885fdf8b6ca1235affde9a34c202e38b2b84aef764ccfa7f2e31c18f