[INFO] fetching crate duplicate_destroyer 0.0.8...
[INFO] checking duplicate_destroyer-0.0.8 against master#5ad98b4026d5172f27615b105658bc8bfd677be8 for pr-129422
[INFO] extracting crate duplicate_destroyer 0.0.8 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate duplicate_destroyer 0.0.8 on toolchain 5ad98b4026d5172f27615b105658bc8bfd677be8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5ad98b4026d5172f27615b105658bc8bfd677be8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate duplicate_destroyer 0.0.8
[INFO] finished tweaking crates.io crate duplicate_destroyer 0.0.8
[INFO] tweaked toml for crates.io crate duplicate_destroyer 0.0.8 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate crates.io crate duplicate_destroyer 0.0.8 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" "+5ad98b4026d5172f27615b105658bc8bfd677be8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+5ad98b4026d5172f27615b105658bc8bfd677be8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b51e10efa879b45430114133b3cb2d9b9d3d591c35c93e8473b9af9a27431100
[INFO] running `Command { std: "docker" "start" "-a" "b51e10efa879b45430114133b3cb2d9b9d3d591c35c93e8473b9af9a27431100", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b51e10efa879b45430114133b3cb2d9b9d3d591c35c93e8473b9af9a27431100", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b51e10efa879b45430114133b3cb2d9b9d3d591c35c93e8473b9af9a27431100", kill_on_drop: false }`
[INFO] [stdout] b51e10efa879b45430114133b3cb2d9b9d3d591c35c93e8473b9af9a27431100
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+5ad98b4026d5172f27615b105658bc8bfd677be8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 09d69e7cc218339c920e6661d4d74f493dd7e7b4092c8e7702aed6b534a1c5cb
[INFO] running `Command { std: "docker" "start" "-a" "09d69e7cc218339c920e6661d4d74f493dd7e7b4092c8e7702aed6b534a1c5cb", kill_on_drop: false }`
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[INFO] [stderr]    Compiling serde v1.0.193
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[INFO] [stderr]     Checking duplicate_destroyer v0.0.8 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking criterion v0.3.6
[INFO] [stdout] warning: unused import: `std::process::Command`
[INFO] [stdout]  --> tests/library_tests.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::process::Command;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> benches/lib_bench.rs:55:1
[INFO] [stdout]    |
[INFO] [stdout] 55 | criterion_group!(benches, bench_compare_two_identical_dirs);
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `$crate::criterion_group` which comes from the expansion of the macro `criterion_group` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 15.35s
[INFO] running `Command { std: "docker" "inspect" "09d69e7cc218339c920e6661d4d74f493dd7e7b4092c8e7702aed6b534a1c5cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "09d69e7cc218339c920e6661d4d74f493dd7e7b4092c8e7702aed6b534a1c5cb", kill_on_drop: false }`
[INFO] [stdout] 09d69e7cc218339c920e6661d4d74f493dd7e7b4092c8e7702aed6b534a1c5cb