[INFO] fetching crate xiaotian_s_minigrep 0.1.4...
[INFO] checking xiaotian_s_minigrep-0.1.4 against try#cac44d9528e3bbbdaa1537d187bd489ccc5de18c for pr-91141
[INFO] extracting crate xiaotian_s_minigrep 0.1.4 into /workspace/builds/worker-49/source
[INFO] validating manifest of crates.io crate xiaotian_s_minigrep 0.1.4 on toolchain cac44d9528e3bbbdaa1537d187bd489ccc5de18c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "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-49/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" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "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-49/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6508751e71911a4f8112ea972ea59e410a49fbf9505a92bb0fbfff26e4369dc9
[INFO] running `Command { std: "docker" "start" "-a" "6508751e71911a4f8112ea972ea59e410a49fbf9505a92bb0fbfff26e4369dc9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6508751e71911a4f8112ea972ea59e410a49fbf9505a92bb0fbfff26e4369dc9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6508751e71911a4f8112ea972ea59e410a49fbf9505a92bb0fbfff26e4369dc9", kill_on_drop: false }`
[INFO] [stdout] 6508751e71911a4f8112ea972ea59e410a49fbf9505a92bb0fbfff26e4369dc9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2adb026220f83e08134afa735519d51d489286d77a373539d23f6d6bb85be4b9
[INFO] running `Command { std: "docker" "start" "-a" "2adb026220f83e08134afa735519d51d489286d77a373539d23f6d6bb85be4b9", 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 2.48s
[INFO] running `Command { std: "docker" "inspect" "2adb026220f83e08134afa735519d51d489286d77a373539d23f6d6bb85be4b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2adb026220f83e08134afa735519d51d489286d77a373539d23f6d6bb85be4b9", kill_on_drop: false }`
[INFO] [stdout] 2adb026220f83e08134afa735519d51d489286d77a373539d23f6d6bb85be4b9