[INFO] cloning repository https://github.com/mickvangelderen/optimistic-parallel-file-reading-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mickvangelderen/optimistic-parallel-file-reading-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmickvangelderen%2Foptimistic-parallel-file-reading-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmickvangelderen%2Foptimistic-parallel-file-reading-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a4295eda88cd2b6ebc628a494174eb1e49f6e8f5
[INFO] checking mickvangelderen/optimistic-parallel-file-reading-rust against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmickvangelderen%2Foptimistic-parallel-file-reading-rust" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mickvangelderen/optimistic-parallel-file-reading-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/mickvangelderen/optimistic-parallel-file-reading-rust
[INFO] finished tweaking git repo https://github.com/mickvangelderen/optimistic-parallel-file-reading-rust
[INFO] tweaked toml for git repo https://github.com/mickvangelderen/optimistic-parallel-file-reading-rust written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/mickvangelderen/optimistic-parallel-file-reading-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-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 93b988a19b4738ebada085d5dfc5fa035cbb130d0bf2a440d970ca2b6c8cd211
[INFO] running `Command { std: "docker" "start" "-a" "93b988a19b4738ebada085d5dfc5fa035cbb130d0bf2a440d970ca2b6c8cd211", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "93b988a19b4738ebada085d5dfc5fa035cbb130d0bf2a440d970ca2b6c8cd211", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93b988a19b4738ebada085d5dfc5fa035cbb130d0bf2a440d970ca2b6c8cd211", kill_on_drop: false }`
[INFO] [stdout] 93b988a19b4738ebada085d5dfc5fa035cbb130d0bf2a440d970ca2b6c8cd211
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] c81acd89d7a1fa7ee2007a212a241ee3924fee3cf4a07f12f7a813b944e1925f
[INFO] running `Command { std: "docker" "start" "-a" "c81acd89d7a1fa7ee2007a212a241ee3924fee3cf4a07f12f7a813b944e1925f", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]     Checking either v1.10.0
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
[INFO] [stderr]     Checking crossbeam-deque v0.8.5
[INFO] [stderr]     Checking rayon v1.9.0
[INFO] [stderr]     Checking rust-lab v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.33s
[INFO] running `Command { std: "docker" "inspect" "c81acd89d7a1fa7ee2007a212a241ee3924fee3cf4a07f12f7a813b944e1925f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c81acd89d7a1fa7ee2007a212a241ee3924fee3cf4a07f12f7a813b944e1925f", kill_on_drop: false }`
[INFO] [stdout] c81acd89d7a1fa7ee2007a212a241ee3924fee3cf4a07f12f7a813b944e1925f
[INFO] checking mickvangelderen/optimistic-parallel-file-reading-rust against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmickvangelderen%2Foptimistic-parallel-file-reading-rust" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mickvangelderen/optimistic-parallel-file-reading-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/mickvangelderen/optimistic-parallel-file-reading-rust
[INFO] finished tweaking git repo https://github.com/mickvangelderen/optimistic-parallel-file-reading-rust
[INFO] tweaked toml for git repo https://github.com/mickvangelderen/optimistic-parallel-file-reading-rust written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/mickvangelderen/optimistic-parallel-file-reading-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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 230a2f72b20130c3e703320f6f54a33d2e2f4302974c0744c6e88b829f51747e
[INFO] running `Command { std: "docker" "start" "-a" "230a2f72b20130c3e703320f6f54a33d2e2f4302974c0744c6e88b829f51747e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "230a2f72b20130c3e703320f6f54a33d2e2f4302974c0744c6e88b829f51747e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "230a2f72b20130c3e703320f6f54a33d2e2f4302974c0744c6e88b829f51747e", kill_on_drop: false }`
[INFO] [stdout] 230a2f72b20130c3e703320f6f54a33d2e2f4302974c0744c6e88b829f51747e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 1a755881942d2d7580e56da19a5018ca7ee98d3432556fad7f3ca6e68b7b25b8
[INFO] running `Command { std: "docker" "start" "-a" "1a755881942d2d7580e56da19a5018ca7ee98d3432556fad7f3ca6e68b7b25b8", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]     Checking either v1.10.0
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
[INFO] [stderr]     Checking crossbeam-deque v0.8.5
[INFO] [stderr]     Checking rayon v1.9.0
[INFO] [stderr]     Checking rust-lab v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.27s
[INFO] running `Command { std: "docker" "inspect" "1a755881942d2d7580e56da19a5018ca7ee98d3432556fad7f3ca6e68b7b25b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a755881942d2d7580e56da19a5018ca7ee98d3432556fad7f3ca6e68b7b25b8", kill_on_drop: false }`
[INFO] [stdout] 1a755881942d2d7580e56da19a5018ca7ee98d3432556fad7f3ca6e68b7b25b8