[INFO] fetching crate xiaotian_s_minigrep 0.1.4...
[INFO] checking xiaotian_s_minigrep-0.1.4 against master#33fdb797f59421c7bbecaa4588ed5d7a31a9494a for pr-87190-3
[INFO] extracting crate xiaotian_s_minigrep 0.1.4 into /workspace/builds/worker-54/source
[INFO] validating manifest of crates.io crate xiaotian_s_minigrep 0.1.4 on toolchain 33fdb797f59421c7bbecaa4588ed5d7a31a9494a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate xiaotian_s_minigrep 0.1.4
[INFO] finished tweaking crates.io crate xiaotian_s_minigrep 0.1.4
[INFO] tweaked toml for crates.io crate xiaotian_s_minigrep 0.1.4 written to /workspace/builds/worker-54/source/Cargo.toml
[INFO] crate crates.io crate xiaotian_s_minigrep 0.1.4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a0fe5b5967ce4711c9b2ec1ece238807a14b9c84c253c4430cbcc9e8933903a8
[INFO] running `Command { std: "docker" "start" "-a" "a0fe5b5967ce4711c9b2ec1ece238807a14b9c84c253c4430cbcc9e8933903a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a0fe5b5967ce4711c9b2ec1ece238807a14b9c84c253c4430cbcc9e8933903a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a0fe5b5967ce4711c9b2ec1ece238807a14b9c84c253c4430cbcc9e8933903a8", kill_on_drop: false }`
[INFO] [stdout] a0fe5b5967ce4711c9b2ec1ece238807a14b9c84c253c4430cbcc9e8933903a8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b77dd7bd3cbe0edcbc45cd22ac07df0986d78a4492a2cc0ceec0e91075bda245
[INFO] running `Command { std: "docker" "start" "-a" "b77dd7bd3cbe0edcbc45cd22ac07df0986d78a4492a2cc0ceec0e91075bda245", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking xiaotian_s_minigrep v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::time::Instant`
[INFO] [stdout]    --> src/lib.rs:104:9
[INFO] [stdout]     |
[INFO] [stdout] 104 |     use std::time::Instant;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.29s
[INFO] running `Command { std: "docker" "inspect" "b77dd7bd3cbe0edcbc45cd22ac07df0986d78a4492a2cc0ceec0e91075bda245", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b77dd7bd3cbe0edcbc45cd22ac07df0986d78a4492a2cc0ceec0e91075bda245", kill_on_drop: false }`
[INFO] [stdout] b77dd7bd3cbe0edcbc45cd22ac07df0986d78a4492a2cc0ceec0e91075bda245