[INFO] cloning repository https://github.com/dj8yfo/slowloris
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dj8yfo/slowloris" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdj8yfo%2Fslowloris", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdj8yfo%2Fslowloris'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 32f04e948a0e0f1d92a19df47a58167d00ddf738
[INFO] checking dj8yfo/slowloris against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdj8yfo%2Fslowloris" "/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/dj8yfo/slowloris 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/dj8yfo/slowloris
[INFO] finished tweaking git repo https://github.com/dj8yfo/slowloris
[INFO] tweaked toml for git repo https://github.com/dj8yfo/slowloris written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/dj8yfo/slowloris 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]      Locking 1 package
[INFO] [stderr]       Adding slowloris v0.1.0 (/workspace/builds/worker-6-tc1/source)
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded itoa v1.0.4
[INFO] [stderr]   Downloaded thiserror v1.0.37
[INFO] [stderr]   Downloaded unicode-ident v1.0.5
[INFO] [stderr]   Downloaded slog-async v2.7.0
[INFO] [stderr]   Downloaded crossbeam-utils v0.8.12
[INFO] [stderr]   Downloaded proc-macro2 v1.0.46
[INFO] [stderr]   Downloaded syn v1.0.102
[INFO] [stderr]   Downloaded time v0.3.15
[INFO] [stderr]   Downloaded slog-term v2.9.0
[INFO] [stderr]   Downloaded thiserror-impl v1.0.37
[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] 4dc1facd386840edfd08c682d38a63a0317b42da2dab03d2d9b621b89c14a2d8
[INFO] running `Command { std: "docker" "start" "-a" "4dc1facd386840edfd08c682d38a63a0317b42da2dab03d2d9b621b89c14a2d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4dc1facd386840edfd08c682d38a63a0317b42da2dab03d2d9b621b89c14a2d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4dc1facd386840edfd08c682d38a63a0317b42da2dab03d2d9b621b89c14a2d8", kill_on_drop: false }`
[INFO] [stdout] 4dc1facd386840edfd08c682d38a63a0317b42da2dab03d2d9b621b89c14a2d8
[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] 7dc470963a3abb637efc4127485c7b6e97f9352bedc4ede05a69d013023eacf5
[INFO] running `Command { std: "docker" "start" "-a" "7dc470963a3abb637efc4127485c7b6e97f9352bedc4ede05a69d013023eacf5", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.135
[INFO] [stderr]    Compiling slog v2.7.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.12
[INFO] [stderr]     Checking once_cell v1.15.0
[INFO] [stderr]    Compiling time-macros v0.2.4
[INFO] [stderr]     Checking itoa v1.0.4
[INFO] [stderr]     Checking num_threads v0.1.6
[INFO] [stderr]    Compiling slog-async v2.7.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking take_mut v0.2.2
[INFO] [stderr]     Checking thread_local v1.1.4
[INFO] [stderr]     Checking crossbeam-channel v0.5.6
[INFO] [stderr]     Checking dirs-sys-next v0.1.2
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking dirs-next v2.0.0
[INFO] [stderr]     Checking time v0.3.15
[INFO] [stderr]     Checking term v0.7.0
[INFO] [stderr]     Checking slog-term v2.9.0
[INFO] [stderr]     Checking slowloris v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.23s
[INFO] running `Command { std: "docker" "inspect" "7dc470963a3abb637efc4127485c7b6e97f9352bedc4ede05a69d013023eacf5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7dc470963a3abb637efc4127485c7b6e97f9352bedc4ede05a69d013023eacf5", kill_on_drop: false }`
[INFO] [stdout] 7dc470963a3abb637efc4127485c7b6e97f9352bedc4ede05a69d013023eacf5