[INFO] cloning repository https://github.com/aldokuritsu/pow_verification
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/aldokuritsu/pow_verification" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faldokuritsu%2Fpow_verification", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faldokuritsu%2Fpow_verification'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e09249ee343cd820dff94bc9b6680d18d635b2f9
[INFO] checking aldokuritsu/pow_verification against master#a932eb36f8adf6c8cdfc450f063943da3112d621 for pr-140209-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faldokuritsu%2Fpow_verification" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/aldokuritsu/pow_verification on toolchain a932eb36f8adf6c8cdfc450f063943da3112d621
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a932eb36f8adf6c8cdfc450f063943da3112d621" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/aldokuritsu/pow_verification
[INFO] finished tweaking git repo https://github.com/aldokuritsu/pow_verification
[INFO] tweaked toml for git repo https://github.com/aldokuritsu/pow_verification written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/aldokuritsu/pow_verification 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" "+a932eb36f8adf6c8cdfc450f063943da3112d621" "fetch" "--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-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+a932eb36f8adf6c8cdfc450f063943da3112d621" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 777a2661850f78937c9ecc931028f26ba6dc7035fa6b4cf4a64747c13a699627
[INFO] running `Command { std: "docker" "start" "-a" "777a2661850f78937c9ecc931028f26ba6dc7035fa6b4cf4a64747c13a699627", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "777a2661850f78937c9ecc931028f26ba6dc7035fa6b4cf4a64747c13a699627", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "777a2661850f78937c9ecc931028f26ba6dc7035fa6b4cf4a64747c13a699627", kill_on_drop: false }`
[INFO] [stdout] 777a2661850f78937c9ecc931028f26ba6dc7035fa6b4cf4a64747c13a699627
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+a932eb36f8adf6c8cdfc450f063943da3112d621" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 41f9f9d466a740cce529fde1dba7120575219f10ae99468b9640e66a2a0cb388
[INFO] running `Command { std: "docker" "start" "-a" "41f9f9d466a740cce529fde1dba7120575219f10ae99468b9640e66a2a0cb388", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.9.5
[INFO] [stderr]    Compiling typenum v1.17.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking cpufeatures v0.2.13
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]     Checking block-buffer v0.10.4
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking sha2 v0.10.8
[INFO] [stderr]     Checking pow_verification v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Duration`
[INFO] [stdout]   --> src/pow_verification.rs:55:45
[INFO] [stdout]    |
[INFO] [stdout] 55 |     use std::time::{SystemTime, UNIX_EPOCH, Duration};
[INFO] [stdout]    |                                             ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.11s
[INFO] running `Command { std: "docker" "inspect" "41f9f9d466a740cce529fde1dba7120575219f10ae99468b9640e66a2a0cb388", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "41f9f9d466a740cce529fde1dba7120575219f10ae99468b9640e66a2a0cb388", kill_on_drop: false }`
[INFO] [stdout] 41f9f9d466a740cce529fde1dba7120575219f10ae99468b9640e66a2a0cb388