[INFO] fetching crate cow2 0.2.6...
[INFO] checking cow2-0.2.6 against master#035b01b794602d5861daa43ac792f372f8981ed7 for 152214-denied
[INFO] extracting crate cow2 0.2.6 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate cow2 0.2.6
[INFO] finished tweaking crates.io crate cow2 0.2.6
[INFO] tweaked toml for crates.io crate cow2 0.2.6 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate cow2 0.2.6 on toolchain 035b01b794602d5861daa43ac792f372f8981ed7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+035b01b794602d5861daa43ac792f372f8981ed7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate cow2 0.2.6 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" "+035b01b794602d5861daa43ac792f372f8981ed7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+035b01b794602d5861daa43ac792f372f8981ed7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cbfa5dd1ea9841be10f6094d0b76956ff1128efe6127ab0a309da6f7816a6620
[INFO] running `Command { std: "docker" "start" "-a" "cbfa5dd1ea9841be10f6094d0b76956ff1128efe6127ab0a309da6f7816a6620", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cbfa5dd1ea9841be10f6094d0b76956ff1128efe6127ab0a309da6f7816a6620", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cbfa5dd1ea9841be10f6094d0b76956ff1128efe6127ab0a309da6f7816a6620", kill_on_drop: false }`
[INFO] [stdout] cbfa5dd1ea9841be10f6094d0b76956ff1128efe6127ab0a309da6f7816a6620
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+035b01b794602d5861daa43ac792f372f8981ed7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5f12b4d9b087be0a67031cad37cd90fb55a1921e752800fe44a513fea36940fc
[INFO] running `Command { std: "docker" "start" "-a" "5f12b4d9b087be0a67031cad37cd90fb55a1921e752800fe44a513fea36940fc", kill_on_drop: false }`
[INFO] [stderr]     Checking cow2 v0.2.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `FromCow` is never constructed
[INFO] [stdout]    --> src/like_impls.rs:435:12
[INFO] [stdout]     |
[INFO] [stdout] 435 |     struct FromCow;
[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 0.22s
[INFO] running `Command { std: "docker" "inspect" "5f12b4d9b087be0a67031cad37cd90fb55a1921e752800fe44a513fea36940fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f12b4d9b087be0a67031cad37cd90fb55a1921e752800fe44a513fea36940fc", kill_on_drop: false }`
[INFO] [stdout] 5f12b4d9b087be0a67031cad37cd90fb55a1921e752800fe44a513fea36940fc