[INFO] cloning repository https://github.com/vsyrovat/langtons-ant-rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/vsyrovat/langtons-ant-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvsyrovat%2Flangtons-ant-rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvsyrovat%2Flangtons-ant-rust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 34852f99481864666f3f18f1d84a6e4dcacf7b0c [INFO] checking vsyrovat/langtons-ant-rust against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvsyrovat%2Flangtons-ant-rust" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/vsyrovat/langtons-ant-rust on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/vsyrovat/langtons-ant-rust [INFO] finished tweaking git repo https://github.com/vsyrovat/langtons-ant-rust [INFO] tweaked toml for git repo https://github.com/vsyrovat/langtons-ant-rust written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/vsyrovat/langtons-ant-rust already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] a4f61b0afb8e2d1c9e0ac1ee3ead58a37a65cc883b7da678dec387ea3344b21f [INFO] running `Command { std: "docker" "start" "-a" "a4f61b0afb8e2d1c9e0ac1ee3ead58a37a65cc883b7da678dec387ea3344b21f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a4f61b0afb8e2d1c9e0ac1ee3ead58a37a65cc883b7da678dec387ea3344b21f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a4f61b0afb8e2d1c9e0ac1ee3ead58a37a65cc883b7da678dec387ea3344b21f", kill_on_drop: false }` [INFO] [stdout] a4f61b0afb8e2d1c9e0ac1ee3ead58a37a65cc883b7da678dec387ea3344b21f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 9130539fd0876f8d6d5962126d5a574bfd31bc2bf64c77040cf2aa22201c45c2 [INFO] running `Command { std: "docker" "start" "-a" "9130539fd0876f8d6d5962126d5a574bfd31bc2bf64c77040cf2aa22201c45c2", kill_on_drop: false }` [INFO] [stderr] Checking simd-adler32 v0.3.7 [INFO] [stderr] Checking miniz_oxide v0.7.1 [INFO] [stderr] Checking fdeflate v0.3.0 [INFO] [stderr] Checking flate2 v1.0.27 [INFO] [stderr] Checking png v0.17.10 [INFO] [stderr] Checking ant v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.19s [INFO] running `Command { std: "docker" "inspect" "9130539fd0876f8d6d5962126d5a574bfd31bc2bf64c77040cf2aa22201c45c2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9130539fd0876f8d6d5962126d5a574bfd31bc2bf64c77040cf2aa22201c45c2", kill_on_drop: false }` [INFO] [stdout] 9130539fd0876f8d6d5962126d5a574bfd31bc2bf64c77040cf2aa22201c45c2 [INFO] checking vsyrovat/langtons-ant-rust against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvsyrovat%2Flangtons-ant-rust" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/vsyrovat/langtons-ant-rust on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/vsyrovat/langtons-ant-rust [INFO] finished tweaking git repo https://github.com/vsyrovat/langtons-ant-rust [INFO] tweaked toml for git repo https://github.com/vsyrovat/langtons-ant-rust written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/vsyrovat/langtons-ant-rust already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] e2a10ff836fb3acfd203574c3bfd6f2e9c967bca58efa941dc05961af6bad47f [INFO] running `Command { std: "docker" "start" "-a" "e2a10ff836fb3acfd203574c3bfd6f2e9c967bca58efa941dc05961af6bad47f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e2a10ff836fb3acfd203574c3bfd6f2e9c967bca58efa941dc05961af6bad47f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e2a10ff836fb3acfd203574c3bfd6f2e9c967bca58efa941dc05961af6bad47f", kill_on_drop: false }` [INFO] [stdout] e2a10ff836fb3acfd203574c3bfd6f2e9c967bca58efa941dc05961af6bad47f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 8b6eb421ea07ee7380821283b91e05c206a80ae852e3bd930fca20a10b82b79c [INFO] running `Command { std: "docker" "start" "-a" "8b6eb421ea07ee7380821283b91e05c206a80ae852e3bd930fca20a10b82b79c", kill_on_drop: false }` [INFO] [stderr] Checking simd-adler32 v0.3.7 [INFO] [stderr] Checking miniz_oxide v0.7.1 [INFO] [stderr] Checking fdeflate v0.3.0 [INFO] [stderr] Checking flate2 v1.0.27 [INFO] [stderr] Checking png v0.17.10 [INFO] [stderr] Checking ant v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.06s [INFO] running `Command { std: "docker" "inspect" "8b6eb421ea07ee7380821283b91e05c206a80ae852e3bd930fca20a10b82b79c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8b6eb421ea07ee7380821283b91e05c206a80ae852e3bd930fca20a10b82b79c", kill_on_drop: false }` [INFO] [stdout] 8b6eb421ea07ee7380821283b91e05c206a80ae852e3bd930fca20a10b82b79c