[INFO] fetching crate xiaotian_s_minigrep 0.1.4...
[INFO] checking xiaotian_s_minigrep-0.1.4 against master#da897dfb6daa268a965d2d73620316ba56020a19 for pr-76219
[INFO] extracting crate xiaotian_s_minigrep 0.1.4 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate xiaotian_s_minigrep 0.1.4 on toolchain da897dfb6daa268a965d2d73620316ba56020a19
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+da897dfb6daa268a965d2d73620316ba56020a19" "read-manifest" "--manifest-path" "Cargo.toml", 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-7/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" "+da897dfb6daa268a965d2d73620316ba56020a19" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+da897dfb6daa268a965d2d73620316ba56020a19" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f928d63fd8ece40cdf2106af5af1e3915f44bc5fd644e9819f7de8cd4bc6b7aa
[INFO] running `Command { std: "docker" "start" "-a" "f928d63fd8ece40cdf2106af5af1e3915f44bc5fd644e9819f7de8cd4bc6b7aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f928d63fd8ece40cdf2106af5af1e3915f44bc5fd644e9819f7de8cd4bc6b7aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f928d63fd8ece40cdf2106af5af1e3915f44bc5fd644e9819f7de8cd4bc6b7aa", kill_on_drop: false }`
[INFO] [stdout] f928d63fd8ece40cdf2106af5af1e3915f44bc5fd644e9819f7de8cd4bc6b7aa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+da897dfb6daa268a965d2d73620316ba56020a19" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b24f4af59abbe43dd24d2132e55e3bdc557720a9e0494afdeae88c8a6708d643
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "b24f4af59abbe43dd24d2132e55e3bdc557720a9e0494afdeae88c8a6708d643", kill_on_drop: false }`
[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 0.64s
[INFO] running `Command { std: "docker" "inspect" "b24f4af59abbe43dd24d2132e55e3bdc557720a9e0494afdeae88c8a6708d643", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b24f4af59abbe43dd24d2132e55e3bdc557720a9e0494afdeae88c8a6708d643", kill_on_drop: false }`
[INFO] [stdout] b24f4af59abbe43dd24d2132e55e3bdc557720a9e0494afdeae88c8a6708d643