[INFO] cloning repository https://github.com/ninevra/tic-tac-toe
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ninevra/tic-tac-toe" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fninevra%2Ftic-tac-toe", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fninevra%2Ftic-tac-toe'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4dd3fd1e53d971a0270685624e5d937ad529e741
[INFO] checking ninevra/tic-tac-toe against master#4fa76a4a7742bb9c1febe33019f5a9e7e4839a65 for pr-83744
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fninevra%2Ftic-tac-toe" "/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/ninevra/tic-tac-toe on toolchain 4fa76a4a7742bb9c1febe33019f5a9e7e4839a65
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ninevra/tic-tac-toe
[INFO] finished tweaking git repo https://github.com/ninevra/tic-tac-toe
[INFO] tweaked toml for git repo https://github.com/ninevra/tic-tac-toe written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/ninevra/tic-tac-toe already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dc9ab109ef60762a54361129b28b2cde98fa7ab076a043c347c227b038be8d84
[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" "dc9ab109ef60762a54361129b28b2cde98fa7ab076a043c347c227b038be8d84", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dc9ab109ef60762a54361129b28b2cde98fa7ab076a043c347c227b038be8d84", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc9ab109ef60762a54361129b28b2cde98fa7ab076a043c347c227b038be8d84", kill_on_drop: false }`
[INFO] [stdout] dc9ab109ef60762a54361129b28b2cde98fa7ab076a043c347c227b038be8d84
[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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c2037dca328f509e07894cb2845b09869f7502e5a36d8037a00f84ae8ff7f46f
[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" "c2037dca328f509e07894cb2845b09869f7502e5a36d8037a00f84ae8ff7f46f", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.64
[INFO] [stderr]    Compiling serde_derive v1.0.124
[INFO] [stderr]    Compiling libc v0.2.89
[INFO] [stderr]    Compiling serde v1.0.124
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking linked-hash-map v0.5.4
[INFO] [stderr]     Checking dtoa v0.4.7
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking similar v1.3.0
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]     Checking yaml-rust v0.4.5
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking terminal_size v0.1.16
[INFO] [stderr]     Checking console v0.14.1
[INFO] [stderr]     Checking serde_yaml v0.8.17
[INFO] [stderr]     Checking serde_json v1.0.64
[INFO] [stderr]     Checking insta v1.7.0
[INFO] [stderr]     Checking tic-tac-toe v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 20.29s
[INFO] running `Command { std: "docker" "inspect" "c2037dca328f509e07894cb2845b09869f7502e5a36d8037a00f84ae8ff7f46f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c2037dca328f509e07894cb2845b09869f7502e5a36d8037a00f84ae8ff7f46f", kill_on_drop: false }`
[INFO] [stdout] c2037dca328f509e07894cb2845b09869f7502e5a36d8037a00f84ae8ff7f46f