[INFO] fetching crate ports-sniffer 0.1.0...
[INFO] building ports-sniffer-0.1.0 against try#4987e9d4227139400384ab59296ffee3b0fb1183 for pr-146237-2
[INFO] extracting crate ports-sniffer 0.1.0 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate ports-sniffer 0.1.0
[INFO] finished tweaking crates.io crate ports-sniffer 0.1.0
[INFO] tweaked toml for crates.io crate ports-sniffer 0.1.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate ports-sniffer 0.1.0 on toolchain 4987e9d4227139400384ab59296ffee3b0fb1183
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate ports-sniffer 0.1.0 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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fd31e22a6db8b1c6bf69ac22e88f7790fa7c61bb2672dc929d72d0b0d8dd675c
[INFO] running `Command { std: "docker" "start" "-a" "fd31e22a6db8b1c6bf69ac22e88f7790fa7c61bb2672dc929d72d0b0d8dd675c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fd31e22a6db8b1c6bf69ac22e88f7790fa7c61bb2672dc929d72d0b0d8dd675c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd31e22a6db8b1c6bf69ac22e88f7790fa7c61bb2672dc929d72d0b0d8dd675c", kill_on_drop: false }`
[INFO] [stdout] fd31e22a6db8b1c6bf69ac22e88f7790fa7c61bb2672dc929d72d0b0d8dd675c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9c4dd40a2dffaebc90834db86b063f1a9588d612121f2bad382a286fd3089701
[INFO] running `Command { std: "docker" "start" "-a" "9c4dd40a2dffaebc90834db86b063f1a9588d612121f2bad382a286fd3089701", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.43
[INFO] [stderr]    Compiling libc v0.2.132
[INFO] [stderr]    Compiling unicode-ident v1.0.3
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling syn v1.0.99
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling neli v0.5.3
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling colored v2.0.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.34
[INFO] [stderr]    Compiling thiserror v1.0.34
[INFO] [stderr]    Compiling local-ip-address v0.4.8
[INFO] [stderr]    Compiling ports-sniffer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `flag` is never read
[INFO] [stdout]  --> src/arguments.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct Arguments {
[INFO] [stdout]   |            --------- field in this struct
[INFO] [stdout] 6 |     pub flag: String,
[INFO] [stdout]   |         ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.38s
[INFO] running `Command { std: "docker" "inspect" "9c4dd40a2dffaebc90834db86b063f1a9588d612121f2bad382a286fd3089701", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c4dd40a2dffaebc90834db86b063f1a9588d612121f2bad382a286fd3089701", kill_on_drop: false }`
[INFO] [stdout] 9c4dd40a2dffaebc90834db86b063f1a9588d612121f2bad382a286fd3089701
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5669b02a919acf56b874fa8fa4aee2d310177ff5ade0fdbc4e1ce878c3d62e33
[INFO] running `Command { std: "docker" "start" "-a" "5669b02a919acf56b874fa8fa4aee2d310177ff5ade0fdbc4e1ce878c3d62e33", kill_on_drop: false }`
[INFO] [stderr]    Compiling ports-sniffer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `flag` is never read
[INFO] [stdout]  --> src/arguments.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct Arguments {
[INFO] [stdout]   |            --------- field in this struct
[INFO] [stdout] 6 |     pub flag: String,
[INFO] [stdout]   |         ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.43s
[INFO] running `Command { std: "docker" "inspect" "5669b02a919acf56b874fa8fa4aee2d310177ff5ade0fdbc4e1ce878c3d62e33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5669b02a919acf56b874fa8fa4aee2d310177ff5ade0fdbc4e1ce878c3d62e33", kill_on_drop: false }`
[INFO] [stdout] 5669b02a919acf56b874fa8fa4aee2d310177ff5ade0fdbc4e1ce878c3d62e33