[INFO] cloning repository https://github.com/weclaw1/deterministic_finite_automaton
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/weclaw1/deterministic_finite_automaton" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fweclaw1%2Fdeterministic_finite_automaton", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fweclaw1%2Fdeterministic_finite_automaton'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c351231cfe892df1b44c004af330eb676056e581
[INFO] checking weclaw1/deterministic_finite_automaton against try#3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f for pr-87248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fweclaw1%2Fdeterministic_finite_automaton" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/weclaw1/deterministic_finite_automaton on toolchain 3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/weclaw1/deterministic_finite_automaton
[INFO] finished tweaking git repo https://github.com/weclaw1/deterministic_finite_automaton
[INFO] tweaked toml for git repo https://github.com/weclaw1/deterministic_finite_automaton written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/weclaw1/deterministic_finite_automaton already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded itertools v0.7.1
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "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] 914acd7e3dcff893661114aea7c9b988d74b76970be0621a633e7a67f58ca7be
[INFO] running `Command { std: "docker" "start" "-a" "914acd7e3dcff893661114aea7c9b988d74b76970be0621a633e7a67f58ca7be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "914acd7e3dcff893661114aea7c9b988d74b76970be0621a633e7a67f58ca7be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "914acd7e3dcff893661114aea7c9b988d74b76970be0621a633e7a67f58ca7be", kill_on_drop: false }`
[INFO] [stdout] 914acd7e3dcff893661114aea7c9b988d74b76970be0621a633e7a67f58ca7be
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "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] 2e5c51a9d70405c5cffb93a4b71486b606eccfd60a28a82d10a3acc2f3c5d36a
[INFO] running `Command { std: "docker" "start" "-a" "2e5c51a9d70405c5cffb93a4b71486b606eccfd60a28a82d10a3acc2f3c5d36a", kill_on_drop: false }`
[INFO] [stderr]     Checking either v1.3.0
[INFO] [stderr]     Checking itoa v0.3.4
[INFO] [stderr]    Compiling serde_derive_internals v0.16.0
[INFO] [stderr]     Checking itertools v0.7.1
[INFO] [stderr]     Checking serde_json v1.0.4
[INFO] [stderr]    Compiling serde_derive v1.0.16
[INFO] [stderr]     Checking deterministic_finite_automaton v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.45s
[INFO] running `Command { std: "docker" "inspect" "2e5c51a9d70405c5cffb93a4b71486b606eccfd60a28a82d10a3acc2f3c5d36a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e5c51a9d70405c5cffb93a4b71486b606eccfd60a28a82d10a3acc2f3c5d36a", kill_on_drop: false }`
[INFO] [stdout] 2e5c51a9d70405c5cffb93a4b71486b606eccfd60a28a82d10a3acc2f3c5d36a