[INFO] cloning repository https://github.com/bachp/parwalk
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bachp/parwalk" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbachp%2Fparwalk", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbachp%2Fparwalk'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 870aea7144f04300b3e23417fc6ac9708562e056
[INFO] checking bachp/parwalk against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbachp%2Fparwalk" "/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/bachp/parwalk 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/bachp/parwalk
[INFO] finished tweaking git repo https://github.com/bachp/parwalk
[INFO] tweaked toml for git repo https://github.com/bachp/parwalk written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/bachp/parwalk 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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded atty v0.2.8
[INFO] [stderr]   Downloaded termcolor v0.3.5
[INFO] [stderr]   Downloaded env_logger v0.5.5
[INFO] [stderr]   Downloaded log v0.4.1
[INFO] [stderr]   Downloaded quick-error v1.2.1
[INFO] [stderr]   Downloaded humantime v1.1.1
[INFO] [stderr]   Downloaded crossbeam-epoch v0.3.0
[INFO] [stderr]   Downloaded rayon v1.0.0
[INFO] [stderr]   Downloaded clap v2.31.1
[INFO] [stderr]   Downloaded regex-syntax v0.5.3
[INFO] [stderr]   Downloaded regex v0.2.9
[INFO] [stderr]   Downloaded libc v0.2.39
[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] c95fc19032eab86e3d58c3462f39db83bc91def7df7da6a144f2776d3f66ce7d
[INFO] running `Command { std: "docker" "start" "-a" "c95fc19032eab86e3d58c3462f39db83bc91def7df7da6a144f2776d3f66ce7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c95fc19032eab86e3d58c3462f39db83bc91def7df7da6a144f2776d3f66ce7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c95fc19032eab86e3d58c3462f39db83bc91def7df7da6a144f2776d3f66ce7d", kill_on_drop: false }`
[INFO] [stdout] c95fc19032eab86e3d58c3462f39db83bc91def7df7da6a144f2776d3f66ce7d
[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] be48043279b56d0ea2d6f13774cbaea1d89f2c0ca4853dcf3dc4b141269d3b6e
[INFO] running `Command { std: "docker" "start" "-a" "be48043279b56d0ea2d6f13774cbaea1d89f2c0ca4853dcf3dc4b141269d3b6e", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.39
[INFO] [stderr]     Checking cfg-if v0.1.2
[INFO] [stderr]     Checking lazy_static v1.0.0
[INFO] [stderr]     Checking nodrop v0.1.12
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking lazy_static v0.2.11
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]     Checking memoffset v0.2.1
[INFO] [stderr]    Compiling rayon-core v1.4.0
[INFO] [stderr]     Checking ucd-util v0.1.1
[INFO] [stderr]    Compiling regex v0.2.9
[INFO] [stderr]     Checking quick-error v1.2.1
[INFO] [stderr]     Checking utf8-ranges v1.0.0
[INFO] [stderr]     Checking unicode-width v0.1.4
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking termcolor v0.3.5
[INFO] [stderr]     Checking crossbeam-utils v0.2.2
[INFO] [stderr]     Checking log v0.4.1
[INFO] [stderr]     Checking textwrap v0.9.0
[INFO] [stderr]     Checking either v1.4.0
[INFO] [stderr]     Checking arrayvec v0.4.7
[INFO] [stderr]     Checking bitflags v1.0.1
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]     Checking humantime v1.1.1
[INFO] [stderr]     Checking regex-syntax v0.5.3
[INFO] [stderr]     Checking strsim v0.7.0
[INFO] [stderr]     Checking vec_map v0.8.0
[INFO] [stderr]     Checking thread_local v0.3.5
[INFO] [stderr]     Checking crossbeam-epoch v0.3.0
[INFO] [stderr]     Checking memchr v2.0.1
[INFO] [stderr]     Checking atty v0.2.8
[INFO] [stderr]     Checking num_cpus v1.8.0
[INFO] [stderr]     Checking rand v0.4.2
[INFO] [stderr]     Checking clap v2.31.1
[INFO] [stderr]     Checking aho-corasick v0.6.4
[INFO] [stderr]     Checking crossbeam-deque v0.2.0
[INFO] [stderr]     Checking rayon v1.0.0
[INFO] [stderr]     Checking env_logger v0.5.5
[INFO] [stderr]     Checking parwalk v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.42s
[INFO] running `Command { std: "docker" "inspect" "be48043279b56d0ea2d6f13774cbaea1d89f2c0ca4853dcf3dc4b141269d3b6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be48043279b56d0ea2d6f13774cbaea1d89f2c0ca4853dcf3dc4b141269d3b6e", kill_on_drop: false }`
[INFO] [stdout] be48043279b56d0ea2d6f13774cbaea1d89f2c0ca4853dcf3dc4b141269d3b6e
[INFO] checking bachp/parwalk against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbachp%2Fparwalk" "/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/bachp/parwalk 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/bachp/parwalk
[INFO] finished tweaking git repo https://github.com/bachp/parwalk
[INFO] tweaked toml for git repo https://github.com/bachp/parwalk written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/bachp/parwalk 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] 87e6cc7879be0d40bc8f1e80fdc0a35e581a642c4943c9688b1cf9d17076fb0e
[INFO] running `Command { std: "docker" "start" "-a" "87e6cc7879be0d40bc8f1e80fdc0a35e581a642c4943c9688b1cf9d17076fb0e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "87e6cc7879be0d40bc8f1e80fdc0a35e581a642c4943c9688b1cf9d17076fb0e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "87e6cc7879be0d40bc8f1e80fdc0a35e581a642c4943c9688b1cf9d17076fb0e", kill_on_drop: false }`
[INFO] [stdout] 87e6cc7879be0d40bc8f1e80fdc0a35e581a642c4943c9688b1cf9d17076fb0e
[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] 39e37d6b464b85be23bd800e7dba6bd23b023cb15384aa49c3a575d4b5a8af63
[INFO] running `Command { std: "docker" "start" "-a" "39e37d6b464b85be23bd800e7dba6bd23b023cb15384aa49c3a575d4b5a8af63", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.39
[INFO] [stderr]     Checking cfg-if v0.1.2
[INFO] [stderr]     Checking nodrop v0.1.12
[INFO] [stderr]     Checking lazy_static v1.0.0
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]     Checking lazy_static v0.2.11
[INFO] [stderr]     Checking memoffset v0.2.1
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling regex v0.2.9
[INFO] [stderr]     Checking ucd-util v0.1.1
[INFO] [stderr]    Compiling rayon-core v1.4.0
[INFO] [stderr]     Checking quick-error v1.2.1
[INFO] [stderr]     Checking utf8-ranges v1.0.0
[INFO] [stderr]     Checking unicode-width v0.1.4
[INFO] [stderr]     Checking strsim v0.7.0
[INFO] [stderr]     Checking bitflags v1.0.1
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking vec_map v0.8.0
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]     Checking crossbeam-utils v0.2.2
[INFO] [stderr]     Checking humantime v1.1.1
[INFO] [stderr]     Checking log v0.4.1
[INFO] [stderr]     Checking either v1.4.0
[INFO] [stderr]     Checking arrayvec v0.4.7
[INFO] [stderr]     Checking termcolor v0.3.5
[INFO] [stderr]     Checking thread_local v0.3.5
[INFO] [stderr]     Checking textwrap v0.9.0
[INFO] [stderr]     Checking regex-syntax v0.5.3
[INFO] [stderr]     Checking crossbeam-epoch v0.3.0
[INFO] [stderr]     Checking crossbeam-deque v0.2.0
[INFO] [stderr]     Checking memchr v2.0.1
[INFO] [stderr]     Checking rand v0.4.2
[INFO] [stderr]     Checking num_cpus v1.8.0
[INFO] [stderr]     Checking atty v0.2.8
[INFO] [stderr]     Checking clap v2.31.1
[INFO] [stderr]     Checking aho-corasick v0.6.4
[INFO] [stderr]     Checking rayon v1.0.0
[INFO] [stderr]     Checking env_logger v0.5.5
[INFO] [stderr]     Checking parwalk v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.98s
[INFO] running `Command { std: "docker" "inspect" "39e37d6b464b85be23bd800e7dba6bd23b023cb15384aa49c3a575d4b5a8af63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "39e37d6b464b85be23bd800e7dba6bd23b023cb15384aa49c3a575d4b5a8af63", kill_on_drop: false }`
[INFO] [stdout] 39e37d6b464b85be23bd800e7dba6bd23b023cb15384aa49c3a575d4b5a8af63