[INFO] cloning repository https://github.com/VitalyAnkh/mine_sweeper
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/VitalyAnkh/mine_sweeper" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVitalyAnkh%2Fmine_sweeper", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVitalyAnkh%2Fmine_sweeper'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bcc600a17b3d345f3bd164b30406b16cc1e1d8c8
[INFO] checking VitalyAnkh/mine_sweeper against master#90442458ac46b1d5eed752c316da25450f67285b for pr-81477
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVitalyAnkh%2Fmine_sweeper" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/VitalyAnkh/mine_sweeper on toolchain 90442458ac46b1d5eed752c316da25450f67285b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/VitalyAnkh/mine_sweeper
[INFO] finished tweaking git repo https://github.com/VitalyAnkh/mine_sweeper
[INFO] tweaked toml for git repo https://github.com/VitalyAnkh/mine_sweeper written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/VitalyAnkh/mine_sweeper already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:ea7d7bff36b2ba8ce4de8bba1d2dea90376bc481f1a945a913994a8c492e40c1" "/opt/rustwide/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 32675045dd730fe6f86222a1bc17271e33e4220f3c8dcf6d51e807048d38efa1
[INFO] running `Command { std: "docker" "start" "-a" "32675045dd730fe6f86222a1bc17271e33e4220f3c8dcf6d51e807048d38efa1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "32675045dd730fe6f86222a1bc17271e33e4220f3c8dcf6d51e807048d38efa1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "32675045dd730fe6f86222a1bc17271e33e4220f3c8dcf6d51e807048d38efa1", kill_on_drop: false }`
[INFO] [stdout] 32675045dd730fe6f86222a1bc17271e33e4220f3c8dcf6d51e807048d38efa1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:ea7d7bff36b2ba8ce4de8bba1d2dea90376bc481f1a945a913994a8c492e40c1" "/opt/rustwide/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4a786c381a5980c427a64862656c1f449bea968ca2aeacda14bf67dbf23b281e
[INFO] running `Command { std: "docker" "start" "-a" "4a786c381a5980c427a64862656c1f449bea968ca2aeacda14bf67dbf23b281e", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling syn v0.15.29
[INFO] [stderr]    Compiling cc v1.0.32
[INFO] [stderr]    Compiling num-complex v0.2.1
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]    Compiling byteorder v1.3.1
[INFO] [stderr]     Checking arc-swap v0.3.8
[INFO] [stderr]     Checking stable_deref_trait v1.1.1
[INFO] [stderr]     Checking unicode-segmentation v1.2.1
[INFO] [stderr]     Checking enum-map-internals v0.1.2
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]     Checking toml v0.4.10
[INFO] [stderr]     Checking term_size v0.3.1
[INFO] [stderr]     Checking owning_ref v0.4.0
[INFO] [stderr]     Checking signal-hook v0.1.8
[INFO] [stderr]     Checking hashbrown v0.1.8
[INFO] [stderr]    Compiling ncurses v5.99.0
[INFO] [stderr]     Checking num-rational v0.2.1
[INFO] [stderr]     Checking chrono v0.4.6
[INFO] [stderr]     Checking num v0.2.0
[INFO] [stderr]    Compiling enum-map-derive v0.4.1
[INFO] [stderr]    Compiling enumset_derive v0.3.0
[INFO] [stderr]     Checking enum-map v0.5.0
[INFO] [stderr]     Checking enumset v0.3.17
[INFO] [stderr]     Checking cursive v0.11.1
[INFO] [stderr]     Checking mine_sweeper v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.16s
[INFO] running `Command { std: "docker" "inspect" "4a786c381a5980c427a64862656c1f449bea968ca2aeacda14bf67dbf23b281e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a786c381a5980c427a64862656c1f449bea968ca2aeacda14bf67dbf23b281e", kill_on_drop: false }`
[INFO] [stdout] 4a786c381a5980c427a64862656c1f449bea968ca2aeacda14bf67dbf23b281e