[INFO] fetching crate generic_logger 0.4.0...
[INFO] checking generic_logger-0.4.0 against master#8c32e313cccf7df531e2d49ffb8227bb92304aee for pr-145608-1
[INFO] extracting crate generic_logger 0.4.0 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate generic_logger 0.4.0
[INFO] finished tweaking crates.io crate generic_logger 0.4.0
[INFO] tweaked toml for crates.io crate generic_logger 0.4.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate generic_logger 0.4.0 on toolchain 8c32e313cccf7df531e2d49ffb8227bb92304aee
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "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" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "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" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1fe64361355f27077377f4f534a7398dc707b88f27d5bd8ab27939392b4322d3
[INFO] running `Command { std: "docker" "start" "-a" "1fe64361355f27077377f4f534a7398dc707b88f27d5bd8ab27939392b4322d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1fe64361355f27077377f4f534a7398dc707b88f27d5bd8ab27939392b4322d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1fe64361355f27077377f4f534a7398dc707b88f27d5bd8ab27939392b4322d3", kill_on_drop: false }`
[INFO] [stdout] 1fe64361355f27077377f4f534a7398dc707b88f27d5bd8ab27939392b4322d3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a9a3756a449bf182cd9299390db4e5debfb47524c30d9dbe443314acdd6511bb
[INFO] running `Command { std: "docker" "start" "-a" "a9a3756a449bf182cd9299390db4e5debfb47524c30d9dbe443314acdd6511bb", kill_on_drop: false }`
[INFO] [stderr]     Checking generic_logger v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `fs::File` and `io::Write`
[INFO] [stdout]  --> src/logger.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{fs::File, io::Write};
[INFO] [stdout]   |           ^^^^^^^^  ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/fileio_logger.rs:13:13
[INFO] [stdout]    |
[INFO] [stdout] 13 |         let mut file = OpenOptions::new()
[INFO] [stdout]    |             ----^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `fs::File` and `io::Write`
[INFO] [stdout]  --> src/logger.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{fs::File, io::Write};
[INFO] [stdout]   |           ^^^^^^^^  ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/fileio_logger.rs:13:13
[INFO] [stdout]    |
[INFO] [stdout] 13 |         let mut file = OpenOptions::new()
[INFO] [stdout]    |             ----^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.32s
[INFO] running `Command { std: "docker" "inspect" "a9a3756a449bf182cd9299390db4e5debfb47524c30d9dbe443314acdd6511bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9a3756a449bf182cd9299390db4e5debfb47524c30d9dbe443314acdd6511bb", kill_on_drop: false }`
[INFO] [stdout] a9a3756a449bf182cd9299390db4e5debfb47524c30d9dbe443314acdd6511bb