[INFO] cloning repository https://github.com/sectorzero/grrs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sectorzero/grrs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsectorzero%2Fgrrs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsectorzero%2Fgrrs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a2da179174ca1e9cf3781fa2eb3611fdb83cbcf7
[INFO] checking sectorzero/grrs against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsectorzero%2Fgrrs" "/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/sectorzero/grrs 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/sectorzero/grrs
[INFO] finished tweaking git repo https://github.com/sectorzero/grrs
[INFO] tweaked toml for git repo https://github.com/sectorzero/grrs written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/sectorzero/grrs 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 console v0.9.1
[INFO] [stderr]   Downloaded structopt-derive v0.3.5
[INFO] [stderr]   Downloaded structopt v0.3.5
[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] 0278d741f23e5a3cf122c97204f8e08fba3efd7311e40bdc97a2cee460a52cd9
[INFO] running `Command { std: "docker" "start" "-a" "0278d741f23e5a3cf122c97204f8e08fba3efd7311e40bdc97a2cee460a52cd9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0278d741f23e5a3cf122c97204f8e08fba3efd7311e40bdc97a2cee460a52cd9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0278d741f23e5a3cf122c97204f8e08fba3efd7311e40bdc97a2cee460a52cd9", kill_on_drop: false }`
[INFO] [stdout] 0278d741f23e5a3cf122c97204f8e08fba3efd7311e40bdc97a2cee460a52cd9
[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] c9a8bded231f2e81583ec45a0f3476af0cbd03e1627d80d60bb8914e058a645f
[INFO] running `Command { std: "docker" "start" "-a" "c9a8bded231f2e81583ec45a0f3476af0cbd03e1627d80d60bb8914e058a645f", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.11
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling cc v1.0.48
[INFO] [stderr]     Checking unicode-width v0.1.6
[INFO] [stderr]    Compiling getrandom v0.1.13
[INFO] [stderr]     Checking regex-syntax v0.6.12
[INFO] [stderr]    Compiling rayon-core v1.6.1
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]    Compiling failure_derive v0.1.6
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking crossbeam-queue v0.2.0
[INFO] [stderr]     Checking clicolors-control v1.0.1
[INFO] [stderr]     Checking termios v0.3.1
[INFO] [stderr]     Checking quick-error v1.2.2
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking rustc-demangle v0.1.16
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking termcolor v1.0.5
[INFO] [stderr]     Checking number_prefix v0.3.0
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]    Compiling backtrace-sys v0.1.32
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking rayon v1.2.1
[INFO] [stderr]     Checking aho-corasick v0.7.6
[INFO] [stderr]     Checking rand v0.7.2
[INFO] [stderr]     Checking regex v1.3.1
[INFO] [stderr]     Checking backtrace v0.3.40
[INFO] [stderr]     Checking console v0.9.1
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking indicatif v0.13.0
[INFO] [stderr]    Compiling proc-macro-error v0.2.6
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling structopt-derive v0.3.5
[INFO] [stderr]     Checking failure v0.1.6
[INFO] [stderr]     Checking structopt v0.3.5
[INFO] [stderr]     Checking grrs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.38s
[INFO] running `Command { std: "docker" "inspect" "c9a8bded231f2e81583ec45a0f3476af0cbd03e1627d80d60bb8914e058a645f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c9a8bded231f2e81583ec45a0f3476af0cbd03e1627d80d60bb8914e058a645f", kill_on_drop: false }`
[INFO] [stdout] c9a8bded231f2e81583ec45a0f3476af0cbd03e1627d80d60bb8914e058a645f
[INFO] checking sectorzero/grrs against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsectorzero%2Fgrrs" "/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/sectorzero/grrs 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/sectorzero/grrs
[INFO] finished tweaking git repo https://github.com/sectorzero/grrs
[INFO] tweaked toml for git repo https://github.com/sectorzero/grrs written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/sectorzero/grrs 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] bd51d23d4cc2bad0c24a9f99c32e1ffc524ce7b29f3a9823d5c157a9d50c47d6
[INFO] running `Command { std: "docker" "start" "-a" "bd51d23d4cc2bad0c24a9f99c32e1ffc524ce7b29f3a9823d5c157a9d50c47d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bd51d23d4cc2bad0c24a9f99c32e1ffc524ce7b29f3a9823d5c157a9d50c47d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd51d23d4cc2bad0c24a9f99c32e1ffc524ce7b29f3a9823d5c157a9d50c47d6", kill_on_drop: false }`
[INFO] [stdout] bd51d23d4cc2bad0c24a9f99c32e1ffc524ce7b29f3a9823d5c157a9d50c47d6
[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] 3790c162ea564f6e814af94ad5a37173ac03f6bbe9f9762168e4d4ee261c1a33
[INFO] running `Command { std: "docker" "start" "-a" "3790c162ea564f6e814af94ad5a37173ac03f6bbe9f9762168e4d4ee261c1a33", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.11
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling cc v1.0.48
[INFO] [stderr]     Checking unicode-width v0.1.6
[INFO] [stderr]    Compiling getrandom v0.1.13
[INFO] [stderr]     Checking regex-syntax v0.6.12
[INFO] [stderr]    Compiling rayon-core v1.6.1
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]    Compiling failure_derive v0.1.6
[INFO] [stderr]     Checking crossbeam-queue v0.2.0
[INFO] [stderr]     Checking clicolors-control v1.0.1
[INFO] [stderr]     Checking termios v0.3.1
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking rustc-demangle v0.1.16
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]     Checking quick-error v1.2.2
[INFO] [stderr]     Checking number_prefix v0.3.0
[INFO] [stderr]     Checking termcolor v1.0.5
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking rayon v1.2.1
[INFO] [stderr]     Checking rand v0.7.2
[INFO] [stderr]    Compiling backtrace-sys v0.1.32
[INFO] [stderr]     Checking aho-corasick v0.7.6
[INFO] [stderr]     Checking backtrace v0.3.40
[INFO] [stderr]     Checking regex v1.3.1
[INFO] [stderr]     Checking console v0.9.1
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking indicatif v0.13.0
[INFO] [stderr]    Compiling proc-macro-error v0.2.6
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling structopt-derive v0.3.5
[INFO] [stderr]     Checking failure v0.1.6
[INFO] [stderr]     Checking structopt v0.3.5
[INFO] [stderr]     Checking grrs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.55s
[INFO] running `Command { std: "docker" "inspect" "3790c162ea564f6e814af94ad5a37173ac03f6bbe9f9762168e4d4ee261c1a33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3790c162ea564f6e814af94ad5a37173ac03f6bbe9f9762168e4d4ee261c1a33", kill_on_drop: false }`
[INFO] [stdout] 3790c162ea564f6e814af94ad5a37173ac03f6bbe9f9762168e4d4ee261c1a33