[INFO] cloning repository https://github.com/mjhoy/chess
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mjhoy/chess" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmjhoy%2Fchess", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmjhoy%2Fchess'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7a7df47d5fd10129da3b98c75eb9b57bee14058d
[INFO] checking mjhoy/chess against try#f6e2f78768c57172b99c3e85892f867894dc7e30 for pr-75502
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmjhoy%2Fchess" "/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/mjhoy/chess on toolchain f6e2f78768c57172b99c3e85892f867894dc7e30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mjhoy/chess
[INFO] finished tweaking git repo https://github.com/mjhoy/chess
[INFO] tweaked toml for git repo https://github.com/mjhoy/chess written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/mjhoy/chess already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded stackvector v1.0.6
[INFO] [stderr]   Downloaded nom v5.0.0
[INFO] [stderr]   Downloaded lexical-core v0.4.2
[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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 918189dcecace174d90fb2f158a2bb61da31af042cbcb8425664370bd580c80c
[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" "918189dcecace174d90fb2f158a2bb61da31af042cbcb8425664370bd580c80c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "918189dcecace174d90fb2f158a2bb61da31af042cbcb8425664370bd580c80c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "918189dcecace174d90fb2f158a2bb61da31af042cbcb8425664370bd580c80c", kill_on_drop: false }`
[INFO] [stdout] 918189dcecace174d90fb2f158a2bb61da31af042cbcb8425664370bd580c80c
[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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 725007df383834b01fe10bec639aab454f1181c431dfa6ac2033235388cf4297
[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" "725007df383834b01fe10bec639aab454f1181c431dfa6ac2033235388cf4297", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling ryu v0.2.8
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling libc v0.2.58
[INFO] [stderr]    Compiling bitflags v1.1.0
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]     Checking static_assertions v0.2.5
[INFO] [stderr]     Checking cfg-if v0.1.9
[INFO] [stderr]     Checking either v1.5.0
[INFO] [stderr]    Compiling nom v5.0.0
[INFO] [stderr]    Compiling stackvector v1.0.6
[INFO] [stderr]    Compiling lexical-core v0.4.2
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]     Checking itertools v0.7.8
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking chess v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.81s
[INFO] running `Command { std: "docker" "inspect" "725007df383834b01fe10bec639aab454f1181c431dfa6ac2033235388cf4297", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "725007df383834b01fe10bec639aab454f1181c431dfa6ac2033235388cf4297", kill_on_drop: false }`
[INFO] [stdout] 725007df383834b01fe10bec639aab454f1181c431dfa6ac2033235388cf4297