[INFO] updating cached repository https://github.com/nagashi/The-Traveling-Politician-Problem
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] [stderr] From https://github.com/nagashi/The-Traveling-Politician-Problem
[INFO] [stderr]    65e22e8..23f3735  master     -> master
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 23f373592dfb8357b4c02ae832f9a9dc6623e9e0
[INFO] checking nagashi/The-Traveling-Politician-Problem against try#6024cfef3a82f9a7688f07054f1650081bad3af5 for pr-74130
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnagashi%2FThe-Traveling-Politician-Problem" "/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/nagashi/The-Traveling-Politician-Problem on toolchain 6024cfef3a82f9a7688f07054f1650081bad3af5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6024cfef3a82f9a7688f07054f1650081bad3af5" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/nagashi/The-Traveling-Politician-Problem
[INFO] finished tweaking git repo https://github.com/nagashi/The-Traveling-Politician-Problem
[INFO] tweaked toml for git repo https://github.com/nagashi/The-Traveling-Politician-Problem written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/nagashi/The-Traveling-Politician-Problem already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6024cfef3a82f9a7688f07054f1650081bad3af5" "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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+6024cfef3a82f9a7688f07054f1650081bad3af5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4e4b4d5a74d54ce0d864ec106bb9862ded8cd574e6c5306abbf135f62b0802fe
[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" "4e4b4d5a74d54ce0d864ec106bb9862ded8cd574e6c5306abbf135f62b0802fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4e4b4d5a74d54ce0d864ec106bb9862ded8cd574e6c5306abbf135f62b0802fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4e4b4d5a74d54ce0d864ec106bb9862ded8cd574e6c5306abbf135f62b0802fe", kill_on_drop: false }`
[INFO] [stdout] 4e4b4d5a74d54ce0d864ec106bb9862ded8cd574e6c5306abbf135f62b0802fe
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+6024cfef3a82f9a7688f07054f1650081bad3af5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8edecbe9bb3c638956477f5e6e49c13786a37544eeeb7d5f4e3a668ab8182048
[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" "8edecbe9bb3c638956477f5e6e49c13786a37544eeeb7d5f4e3a668ab8182048", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.33
[INFO] [stderr]    Compiling ryu v1.0.3
[INFO] [stderr]     Checking permutohedron v0.2.4
[INFO] [stderr]    Compiling backtrace-sys v0.1.36
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]    Compiling error-chain v0.12.2
[INFO] [stderr]     Checking backtrace v0.3.46
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]     Checking serde v1.0.114
[INFO] [stderr]     Checking serde_json v1.0.56
[INFO] [stderr]     Checking chrono v0.4.11
[INFO] [stderr]     Checking read_json v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 33.02s
[INFO] running `Command { std: "docker" "inspect" "8edecbe9bb3c638956477f5e6e49c13786a37544eeeb7d5f4e3a668ab8182048", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8edecbe9bb3c638956477f5e6e49c13786a37544eeeb7d5f4e3a668ab8182048", kill_on_drop: false }`
[INFO] [stdout] 8edecbe9bb3c638956477f5e6e49c13786a37544eeeb7d5f4e3a668ab8182048