[INFO] fetching crate uu_df 0.0.6...
[INFO] checking uu_df-0.0.6 against master#c5fbcd35a8217a17f6b63a22217ace06cf8f5f02 for pr-86194
[INFO] extracting crate uu_df 0.0.6 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate uu_df 0.0.6 on toolchain c5fbcd35a8217a17f6b63a22217ace06cf8f5f02
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c5fbcd35a8217a17f6b63a22217ace06cf8f5f02" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate uu_df 0.0.6
[INFO] finished tweaking crates.io crate uu_df 0.0.6
[INFO] tweaked toml for crates.io crate uu_df 0.0.6 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate uu_df 0.0.6 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c5fbcd35a8217a17f6b63a22217ace06cf8f5f02" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+c5fbcd35a8217a17f6b63a22217ace06cf8f5f02" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f8de0c875ba1522c282c04bdf99475044d222e223689a94e7aa28e1c40c9c914
[INFO] running `Command { std: "docker" "start" "-a" "f8de0c875ba1522c282c04bdf99475044d222e223689a94e7aa28e1c40c9c914", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f8de0c875ba1522c282c04bdf99475044d222e223689a94e7aa28e1c40c9c914", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f8de0c875ba1522c282c04bdf99475044d222e223689a94e7aa28e1c40c9c914", kill_on_drop: false }`
[INFO] [stdout] f8de0c875ba1522c282c04bdf99475044d222e223689a94e7aa28e1c40c9c914
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+c5fbcd35a8217a17f6b63a22217ace06cf8f5f02" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 423c755d7a531c2578cebf2f3e1d1ca20aeb38912486462035616534f533d012
[INFO] running `Command { std: "docker" "start" "-a" "423c755d7a531c2578cebf2f3e1d1ca20aeb38912486462035616534f533d012", kill_on_drop: false }`
[INFO] [stderr]     Checking number_prefix v0.4.0
[INFO] [stderr]     Checking uu_df v0.0.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `print_grand_total`
[INFO] [stdout]    --> src/df.rs:119:5
[INFO] [stdout]     |
[INFO] [stdout] 119 |     print_grand_total: bool,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `print_grand_total`
[INFO] [stdout]    --> src/df.rs:119:5
[INFO] [stdout]     |
[INFO] [stdout] 119 |     print_grand_total: bool,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.50s
[INFO] running `Command { std: "docker" "inspect" "423c755d7a531c2578cebf2f3e1d1ca20aeb38912486462035616534f533d012", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "423c755d7a531c2578cebf2f3e1d1ca20aeb38912486462035616534f533d012", kill_on_drop: false }`
[INFO] [stdout] 423c755d7a531c2578cebf2f3e1d1ca20aeb38912486462035616534f533d012