[INFO] cloning repository https://github.com/juansoloo/rust_port_scanner
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/juansoloo/rust_port_scanner" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjuansoloo%2Frust_port_scanner", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjuansoloo%2Frust_port_scanner'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b9eb4243b2d863d675d95690a7e4bd99beed85db
[INFO] checking juansoloo/rust_port_scanner against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjuansoloo%2Frust_port_scanner" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/juansoloo/rust_port_scanner 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/juansoloo/rust_port_scanner
[INFO] finished tweaking git repo https://github.com/juansoloo/rust_port_scanner
[INFO] tweaked toml for git repo https://github.com/juansoloo/rust_port_scanner written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/juansoloo/rust_port_scanner 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-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 2dbfedce0acb76bf6c9a1224d2fa2b5a0a847d4899550306e008c2901564dd95
[INFO] running `Command { std: "docker" "start" "-a" "2dbfedce0acb76bf6c9a1224d2fa2b5a0a847d4899550306e008c2901564dd95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2dbfedce0acb76bf6c9a1224d2fa2b5a0a847d4899550306e008c2901564dd95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2dbfedce0acb76bf6c9a1224d2fa2b5a0a847d4899550306e008c2901564dd95", kill_on_drop: false }`
[INFO] [stdout] 2dbfedce0acb76bf6c9a1224d2fa2b5a0a847d4899550306e008c2901564dd95
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 514202d3fc80a185e3cbc09a71b8ca1f3cfb0126c84a7e1aa07681c0e38862ab
[INFO] running `Command { std: "docker" "start" "-a" "514202d3fc80a185e3cbc09a71b8ca1f3cfb0126c84a7e1aa07681c0e38862ab", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling lock_api v0.4.11
[INFO] [stderr]     Checking futures-core v0.3.30
[INFO] [stderr]     Checking futures-sink v0.3.30
[INFO] [stderr]    Compiling parking_lot_core v0.9.9
[INFO] [stderr]     Checking futures-io v0.3.30
[INFO] [stderr]     Checking smallvec v1.13.1
[INFO] [stderr]     Checking futures-task v0.3.30
[INFO] [stderr]     Checking memchr v2.7.1
[INFO] [stderr]     Checking bytes v1.5.0
[INFO] [stderr]     Checking futures-channel v0.3.30
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.50
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking mio v0.8.10
[INFO] [stderr]     Checking socket2 v0.5.6
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]     Checking tokio v1.36.0
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking futures-executor v0.3.30
[INFO] [stderr]     Checking futures v0.3.30
[INFO] [stderr]     Checking rust_port_scanner v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.97s
[INFO] running `Command { std: "docker" "inspect" "514202d3fc80a185e3cbc09a71b8ca1f3cfb0126c84a7e1aa07681c0e38862ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "514202d3fc80a185e3cbc09a71b8ca1f3cfb0126c84a7e1aa07681c0e38862ab", kill_on_drop: false }`
[INFO] [stdout] 514202d3fc80a185e3cbc09a71b8ca1f3cfb0126c84a7e1aa07681c0e38862ab