[INFO] fetching crate flexi_logger 0.27.3...
[INFO] checking flexi_logger-0.27.3 against nightly-2024-02-05 for check-cfg-2
[INFO] extracting crate flexi_logger 0.27.3 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate flexi_logger 0.27.3 on toolchain nightly-2024-02-05
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate flexi_logger 0.27.3
[INFO] finished tweaking crates.io crate flexi_logger 0.27.3
[INFO] tweaked toml for crates.io crate flexi_logger 0.27.3 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate crates.io crate flexi_logger 0.27.3 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" "+nightly-2024-02-05" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-02-05" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e16648826bbb5d0195a2cc3282dbfc021ad5085428aaa7c0620ab361fb1b759e
[INFO] running `Command { std: "docker" "start" "-a" "e16648826bbb5d0195a2cc3282dbfc021ad5085428aaa7c0620ab361fb1b759e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e16648826bbb5d0195a2cc3282dbfc021ad5085428aaa7c0620ab361fb1b759e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e16648826bbb5d0195a2cc3282dbfc021ad5085428aaa7c0620ab361fb1b759e", kill_on_drop: false }`
[INFO] [stdout] e16648826bbb5d0195a2cc3282dbfc021ad5085428aaa7c0620ab361fb1b759e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-02-05" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e18ae9b35240708ef2c5d708e0350cc641470ab44acffcef857d531921b504d3
[INFO] running `Command { std: "docker" "start" "-a" "e18ae9b35240708ef2c5d708e0350cc641470ab44acffcef857d531921b504d3", kill_on_drop: false }`
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[INFO] [stderr]     Checking flexi_logger v0.27.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stdout] warning: field `1` is never read
[INFO] [stdout]    --> src/write_mode.rs:120:31
[INFO] [stdout]     |
[INFO] [stdout] 120 |     BufferAndFlushWith(usize, Duration),
[INFO] [stdout]     |     ------------------        ^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 120 |     BufferAndFlushWith(usize, ()),
[INFO] [stdout]     |                               ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `1` is never read
[INFO] [stdout]    --> src/write_mode.rs:120:31
[INFO] [stdout]     |
[INFO] [stdout] 120 |     BufferAndFlushWith(usize, Duration),
[INFO] [stdout]     |     ------------------        ^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 120 |     BufferAndFlushWith(usize, ()),
[INFO] [stdout]     |                               ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.17s
[INFO] running `Command { std: "docker" "inspect" "e18ae9b35240708ef2c5d708e0350cc641470ab44acffcef857d531921b504d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e18ae9b35240708ef2c5d708e0350cc641470ab44acffcef857d531921b504d3", kill_on_drop: false }`
[INFO] [stdout] e18ae9b35240708ef2c5d708e0350cc641470ab44acffcef857d531921b504d3
