[INFO] fetching crate snake 0.3.1...
[INFO] checking snake-0.3.1 against master#5e3f1b148db5bfa27fee52464ae1f5d34c49d77b for pr-75502
[INFO] extracting crate snake 0.3.1 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate snake 0.3.1 on toolchain 5e3f1b148db5bfa27fee52464ae1f5d34c49d77b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate snake 0.3.1
[INFO] finished tweaking crates.io crate snake 0.3.1
[INFO] tweaked toml for crates.io crate snake 0.3.1 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate snake 0.3.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 59cf829c0b8543f8d8f4341618deba284f7a3924beab5443532b12c3356e2fe7
[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" "59cf829c0b8543f8d8f4341618deba284f7a3924beab5443532b12c3356e2fe7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "59cf829c0b8543f8d8f4341618deba284f7a3924beab5443532b12c3356e2fe7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "59cf829c0b8543f8d8f4341618deba284f7a3924beab5443532b12c3356e2fe7", kill_on_drop: false }`
[INFO] [stdout] 59cf829c0b8543f8d8f4341618deba284f7a3924beab5443532b12c3356e2fe7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] b0fcba4bd18b88f79a50b2428b38612916ae6c3358e8de954f3bf515f7b6dace
[INFO] running `Command { std: "docker" "start" "-a" "b0fcba4bd18b88f79a50b2428b38612916ae6c3358e8de954f3bf515f7b6dace", kill_on_drop: false }`
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling cc v1.0.47
[INFO] [stderr]     Checking c2-chacha v0.2.3
[INFO] [stderr]     Checking getrandom v0.1.13
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking rand v0.7.2
[INFO] [stderr]    Compiling ncurses v5.99.0
[INFO] [stderr]     Checking pancurses v0.16.1
[INFO] [stderr]     Checking snake v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.71s
[INFO] running `Command { std: "docker" "inspect" "b0fcba4bd18b88f79a50b2428b38612916ae6c3358e8de954f3bf515f7b6dace", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0fcba4bd18b88f79a50b2428b38612916ae6c3358e8de954f3bf515f7b6dace", kill_on_drop: false }`
[INFO] [stdout] b0fcba4bd18b88f79a50b2428b38612916ae6c3358e8de954f3bf515f7b6dace