[INFO] cloning repository https://github.com/nixon-voxell/parallel_programming_tut
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nixon-voxell/parallel_programming_tut" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnixon-voxell%2Fparallel_programming_tut", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnixon-voxell%2Fparallel_programming_tut'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a346bfdf93ccb3f1fefce0b5a908d989fdb384b7
[INFO] checking nixon-voxell/parallel_programming_tut against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnixon-voxell%2Fparallel_programming_tut" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nixon-voxell/parallel_programming_tut 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/nixon-voxell/parallel_programming_tut
[INFO] finished tweaking git repo https://github.com/nixon-voxell/parallel_programming_tut
[INFO] tweaked toml for git repo https://github.com/nixon-voxell/parallel_programming_tut written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/nixon-voxell/parallel_programming_tut 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-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 20244ff2713a501e43f8897e5d5a1d9ca44a8f868c1db70db82fdeccb915a199
[INFO] running `Command { std: "docker" "start" "-a" "20244ff2713a501e43f8897e5d5a1d9ca44a8f868c1db70db82fdeccb915a199", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "20244ff2713a501e43f8897e5d5a1d9ca44a8f868c1db70db82fdeccb915a199", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20244ff2713a501e43f8897e5d5a1d9ca44a8f868c1db70db82fdeccb915a199", kill_on_drop: false }`
[INFO] [stdout] 20244ff2713a501e43f8897e5d5a1d9ca44a8f868c1db70db82fdeccb915a199
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] ab137bffa5681089e8c7de69cb3f6611a1e95099155c75ee9ebcbe668e53dfb1
[INFO] running `Command { std: "docker" "start" "-a" "ab137bffa5681089e8c7de69cb3f6611a1e95099155c75ee9ebcbe668e53dfb1", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]     Checking parking v2.2.0
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]     Checking futures-core v0.3.30
[INFO] [stderr]     Checking futures-io v0.3.30
[INFO] [stderr]     Checking async-task v4.7.0
[INFO] [stderr]     Checking web-time v0.2.4
[INFO] [stderr]     Checking futures-lite v2.2.0
[INFO] [stderr]     Checking concurrent-queue v2.4.0
[INFO] [stderr]     Checking event-listener v4.0.3
[INFO] [stderr]     Checking event-listener v5.2.0
[INFO] [stderr]     Checking event-listener-strategy v0.5.0
[INFO] [stderr]     Checking async-channel v2.2.0
[INFO] [stderr]     Checking event-listener-strategy v0.4.0
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]     Checking async-lock v3.3.0
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking async-executor v1.8.0
[INFO] [stderr]     Checking bevy_tasks v0.13.0
[INFO] [stderr]     Checking parprogtut v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.08s
[INFO] running `Command { std: "docker" "inspect" "ab137bffa5681089e8c7de69cb3f6611a1e95099155c75ee9ebcbe668e53dfb1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab137bffa5681089e8c7de69cb3f6611a1e95099155c75ee9ebcbe668e53dfb1", kill_on_drop: false }`
[INFO] [stdout] ab137bffa5681089e8c7de69cb3f6611a1e95099155c75ee9ebcbe668e53dfb1
[INFO] checking nixon-voxell/parallel_programming_tut against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnixon-voxell%2Fparallel_programming_tut" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nixon-voxell/parallel_programming_tut 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/nixon-voxell/parallel_programming_tut
[INFO] finished tweaking git repo https://github.com/nixon-voxell/parallel_programming_tut
[INFO] tweaked toml for git repo https://github.com/nixon-voxell/parallel_programming_tut written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/nixon-voxell/parallel_programming_tut 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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 71aec8fca078158cf5183aa3484dbf8e81937fff96d3be8157f4f44d8bcf94ac
[INFO] running `Command { std: "docker" "start" "-a" "71aec8fca078158cf5183aa3484dbf8e81937fff96d3be8157f4f44d8bcf94ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "71aec8fca078158cf5183aa3484dbf8e81937fff96d3be8157f4f44d8bcf94ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71aec8fca078158cf5183aa3484dbf8e81937fff96d3be8157f4f44d8bcf94ac", kill_on_drop: false }`
[INFO] [stdout] 71aec8fca078158cf5183aa3484dbf8e81937fff96d3be8157f4f44d8bcf94ac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 3b0fcad358d572558e8bbb57d3ed1d6236a2f643db3b9dd23ed3f94c1b1b0bae
[INFO] running `Command { std: "docker" "start" "-a" "3b0fcad358d572558e8bbb57d3ed1d6236a2f643db3b9dd23ed3f94c1b1b0bae", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]     Checking parking v2.2.0
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]     Checking futures-core v0.3.30
[INFO] [stderr]     Checking fastrand v2.0.1
[INFO] [stderr]     Checking futures-io v0.3.30
[INFO] [stderr]     Checking async-task v4.7.0
[INFO] [stderr]     Checking web-time v0.2.4
[INFO] [stderr]     Checking futures-lite v2.2.0
[INFO] [stderr]     Checking concurrent-queue v2.4.0
[INFO] [stderr]     Checking event-listener v4.0.3
[INFO] [stderr]     Checking event-listener v5.2.0
[INFO] [stderr]     Checking event-listener-strategy v0.4.0
[INFO] [stderr]     Checking event-listener-strategy v0.5.0
[INFO] [stderr]     Checking async-lock v3.3.0
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]     Checking async-channel v2.2.0
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking async-executor v1.8.0
[INFO] [stderr]     Checking bevy_tasks v0.13.0
[INFO] [stderr]     Checking parprogtut v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.16s
[INFO] running `Command { std: "docker" "inspect" "3b0fcad358d572558e8bbb57d3ed1d6236a2f643db3b9dd23ed3f94c1b1b0bae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b0fcad358d572558e8bbb57d3ed1d6236a2f643db3b9dd23ed3f94c1b1b0bae", kill_on_drop: false }`
[INFO] [stdout] 3b0fcad358d572558e8bbb57d3ed1d6236a2f643db3b9dd23ed3f94c1b1b0bae