[INFO] fetching crate stdlib-rs 0.0.2...
[INFO] checking stdlib-rs-0.0.2 against master#a3f76a26e045a760bb1163b7eab36872985242d5 for pr-130930
[INFO] extracting crate stdlib-rs 0.0.2 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate stdlib-rs 0.0.2 on toolchain a3f76a26e045a760bb1163b7eab36872985242d5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a3f76a26e045a760bb1163b7eab36872985242d5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate stdlib-rs 0.0.2
[INFO] finished tweaking crates.io crate stdlib-rs 0.0.2
[INFO] tweaked toml for crates.io crate stdlib-rs 0.0.2 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate crates.io crate stdlib-rs 0.0.2 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" "+a3f76a26e045a760bb1163b7eab36872985242d5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded roff v0.1.0
[INFO] [stderr]   Downloaded man v0.3.0
[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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+a3f76a26e045a760bb1163b7eab36872985242d5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a87c1f91ac78190b325e39560692c804b1b34e93de98716d3605062162fe12f4
[INFO] running `Command { std: "docker" "start" "-a" "a87c1f91ac78190b325e39560692c804b1b34e93de98716d3605062162fe12f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a87c1f91ac78190b325e39560692c804b1b34e93de98716d3605062162fe12f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a87c1f91ac78190b325e39560692c804b1b34e93de98716d3605062162fe12f4", kill_on_drop: false }`
[INFO] [stdout] a87c1f91ac78190b325e39560692c804b1b34e93de98716d3605062162fe12f4
[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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+a3f76a26e045a760bb1163b7eab36872985242d5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 41d8eb8d929b49488b305eca4f312379b5e61d39789656051966069b4e549912
[INFO] running `Command { std: "docker" "start" "-a" "41d8eb8d929b49488b305eca4f312379b5e61d39789656051966069b4e549912", kill_on_drop: false }`
[INFO] [stderr]     Checking stdlib-rs v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]  --> src/collections/stack_with_queue.rs:3:21
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Stack<T>(VecDeque<T>, VecDeque<T>);
[INFO] [stdout]   |            -----    ^^^^^^^^^^^  ^^^^^^^^^^^
[INFO] [stdout]   |            |
[INFO] [stdout]   |            fields in this struct
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider removing these fields
[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: fields `0` and `1` are never read
[INFO] [stdout]  --> src/collections/stack_with_queue.rs:3:21
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Stack<T>(VecDeque<T>, VecDeque<T>);
[INFO] [stdout]   |            -----    ^^^^^^^^^^^  ^^^^^^^^^^^
[INFO] [stdout]   |            |
[INFO] [stdout]   |            fields in this struct
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider removing these fields
[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` profile [unoptimized + debuginfo] target(s) in 0.40s
[INFO] running `Command { std: "docker" "inspect" "41d8eb8d929b49488b305eca4f312379b5e61d39789656051966069b4e549912", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "41d8eb8d929b49488b305eca4f312379b5e61d39789656051966069b4e549912", kill_on_drop: false }`
[INFO] [stdout] 41d8eb8d929b49488b305eca4f312379b5e61d39789656051966069b4e549912