[INFO] cloning repository https://github.com/cstrahan/syl-2381
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cstrahan/syl-2381" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcstrahan%2Fsyl-2381", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcstrahan%2Fsyl-2381'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a0e3cc7eed53e5b144fb9db28a7636aad065e6ec
[INFO] checking cstrahan/syl-2381 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcstrahan%2Fsyl-2381" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cstrahan/syl-2381 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/cstrahan/syl-2381
[INFO] removed 0 missing examples
[INFO] finished tweaking git repo https://github.com/cstrahan/syl-2381
[INFO] tweaked toml for git repo https://github.com/cstrahan/syl-2381 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/cstrahan/syl-2381 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]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded critical-section v1.1.1
[INFO] [stderr]   Downloaded serialport v4.2.1
[INFO] [stderr]   Downloaded embedded-hal v1.0.0-alpha.11
[INFO] [stderr]   Downloaded embedded-hal-nb v1.0.0-alpha.3
[INFO] [stderr]   Downloaded rmodbus v0.7.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] ad8483f5d4ed20fdb6c4d7c8fff4f2eb05d6bbb9b76b2cb70e625be264d64e38
[INFO] running `Command { std: "docker" "start" "-a" "ad8483f5d4ed20fdb6c4d7c8fff4f2eb05d6bbb9b76b2cb70e625be264d64e38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ad8483f5d4ed20fdb6c4d7c8fff4f2eb05d6bbb9b76b2cb70e625be264d64e38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad8483f5d4ed20fdb6c4d7c8fff4f2eb05d6bbb9b76b2cb70e625be264d64e38", kill_on_drop: false }`
[INFO] [stdout] ad8483f5d4ed20fdb6c4d7c8fff4f2eb05d6bbb9b76b2cb70e625be264d64e38
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 8f2aea629f7925dee9514ef9f361ebf4afb01fb8c6b3ff31657303e8bba0465f
[INFO] running `Command { std: "docker" "start" "-a" "8f2aea629f7925dee9514ef9f361ebf4afb01fb8c6b3ff31657303e8bba0465f", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver v1.0.18
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling pkg-config v0.3.27
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]     Checking nb v1.1.0
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking embedded-hal v1.0.0-alpha.11
[INFO] [stderr]     Checking ieee754 v0.2.6
[INFO] [stderr]     Checking bitflags v2.0.2
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking nb v0.1.3
[INFO] [stderr]     Checking lock_api v0.4.10
[INFO] [stderr]     Checking embedded-hal v0.2.7
[INFO] [stderr]     Checking embedded-hal-nb v1.0.0-alpha.3
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]     Checking hash32 v0.2.1
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling heapless v0.7.16
[INFO] [stderr]     Checking rmodbus v0.7.4
[INFO] [stderr]     Checking nix v0.26.2
[INFO] [stderr]     Checking libudev v0.3.0
[INFO] [stderr]     Checking serialport v4.2.1
[INFO] [stderr]     Checking syl2381 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.93s
[INFO] running `Command { std: "docker" "inspect" "8f2aea629f7925dee9514ef9f361ebf4afb01fb8c6b3ff31657303e8bba0465f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f2aea629f7925dee9514ef9f361ebf4afb01fb8c6b3ff31657303e8bba0465f", kill_on_drop: false }`
[INFO] [stdout] 8f2aea629f7925dee9514ef9f361ebf4afb01fb8c6b3ff31657303e8bba0465f