[INFO] fetching crate ethernet-info 0.0.4...
[INFO] checking ethernet-info-0.0.4 against try#c659ee110de67e82444e4b6c8407c1a9af9c2cf6 for pr-145608-1
[INFO] extracting crate ethernet-info 0.0.4 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate ethernet-info 0.0.4
[INFO] finished tweaking crates.io crate ethernet-info 0.0.4
[INFO] tweaked toml for crates.io crate ethernet-info 0.0.4 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate ethernet-info 0.0.4 on toolchain c659ee110de67e82444e4b6c8407c1a9af9c2cf6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate ethernet-info 0.0.4 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" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 590ba2abe2789d70bbda95a3e54cd8db3ca08a34b94da15f4badd7782d8d2528
[INFO] running `Command { std: "docker" "start" "-a" "590ba2abe2789d70bbda95a3e54cd8db3ca08a34b94da15f4badd7782d8d2528", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "590ba2abe2789d70bbda95a3e54cd8db3ca08a34b94da15f4badd7782d8d2528", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "590ba2abe2789d70bbda95a3e54cd8db3ca08a34b94da15f4badd7782d8d2528", kill_on_drop: false }`
[INFO] [stdout] 590ba2abe2789d70bbda95a3e54cd8db3ca08a34b94da15f4badd7782d8d2528
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0902908e2da3609b745a4b0ff2c0634ff956e4fabf3e02a6ce38d9921f948bef
[INFO] running `Command { std: "docker" "start" "-a" "0902908e2da3609b745a4b0ff2c0634ff956e4fabf3e02a6ce38d9921f948bef", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling memoffset v0.7.1
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.52
[INFO] [stderr]     Checking nix v0.26.4
[INFO] [stderr]    Compiling enum-iterator-derive v1.3.0
[INFO] [stderr]     Checking enum-iterator v1.5.0
[INFO] [stderr]     Checking ethernet-info v0.0.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `must_use` that must be used
[INFO] [stdout]   --> src/errors.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |         format!("{:?}", err);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 35 |         let _ = format!("{:?}", err);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `must_use` that must be used
[INFO] [stdout]    --> src/ethtool_const.rs:460:13
[INFO] [stdout]     |
[INFO] [stdout] 460 |             format!("{:?}", item);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 460 |             let _ = format!("{:?}", item);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `must_use` that must be used
[INFO] [stdout]    --> src/ethtool_const.rs:465:13
[INFO] [stdout]     |
[INFO] [stdout] 465 |             format!("{:?}", item);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 465 |             let _ = format!("{:?}", item);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `must_use` that must be used
[INFO] [stdout]    --> src/ethtool_const.rs:470:13
[INFO] [stdout]     |
[INFO] [stdout] 470 |             format!("{:?}", item);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 470 |             let _ = format!("{:?}", item);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.88s
[INFO] running `Command { std: "docker" "inspect" "0902908e2da3609b745a4b0ff2c0634ff956e4fabf3e02a6ce38d9921f948bef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0902908e2da3609b745a4b0ff2c0634ff956e4fabf3e02a6ce38d9921f948bef", kill_on_drop: false }`
[INFO] [stdout] 0902908e2da3609b745a4b0ff2c0634ff956e4fabf3e02a6ce38d9921f948bef