[INFO] cloning repository https://github.com/RUGMJ/led-strip-control
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/RUGMJ/led-strip-control" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRUGMJ%2Fled-strip-control", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRUGMJ%2Fled-strip-control'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 703916784047eebae0066b48538fb0162476da57
[INFO] checking RUGMJ/led-strip-control against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRUGMJ%2Fled-strip-control" "/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/RUGMJ/led-strip-control 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/RUGMJ/led-strip-control
[INFO] finished tweaking git repo https://github.com/RUGMJ/led-strip-control
[INFO] tweaked toml for git repo https://github.com/RUGMJ/led-strip-control written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/RUGMJ/led-strip-control 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 uuid v0.6.5
[INFO] [stderr]   Downloaded sacn-unofficial v0.9.0
[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] f46a0aa645e79db301070c03945658782f0041077e23456c4b12a10d223f980d
[INFO] running `Command { std: "docker" "start" "-a" "f46a0aa645e79db301070c03945658782f0041077e23456c4b12a10d223f980d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f46a0aa645e79db301070c03945658782f0041077e23456c4b12a10d223f980d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f46a0aa645e79db301070c03945658782f0041077e23456c4b12a10d223f980d", kill_on_drop: false }`
[INFO] [stdout] f46a0aa645e79db301070c03945658782f0041077e23456c4b12a10d223f980d
[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] 5ae1c91869a24820b9e1727dc55fbed88eea2d4f3b222d644b1cb0202133bae5
[INFO] running `Command { std: "docker" "start" "-a" "5ae1c91869a24820b9e1727dc55fbed88eea2d4f3b222d644b1cb0202133bae5", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.146
[INFO] [stderr]    Compiling backtrace v0.3.67
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking socket2 v0.3.19
[INFO] [stderr]     Checking net2 v0.2.39
[INFO] [stderr]     Checking uuid v0.6.5
[INFO] [stderr]     Checking sacn-unofficial v0.9.0
[INFO] [stderr]     Checking led-strip-control v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.52s
[INFO] running `Command { std: "docker" "inspect" "5ae1c91869a24820b9e1727dc55fbed88eea2d4f3b222d644b1cb0202133bae5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ae1c91869a24820b9e1727dc55fbed88eea2d4f3b222d644b1cb0202133bae5", kill_on_drop: false }`
[INFO] [stdout] 5ae1c91869a24820b9e1727dc55fbed88eea2d4f3b222d644b1cb0202133bae5
[INFO] checking RUGMJ/led-strip-control against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRUGMJ%2Fled-strip-control" "/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/RUGMJ/led-strip-control 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/RUGMJ/led-strip-control
[INFO] finished tweaking git repo https://github.com/RUGMJ/led-strip-control
[INFO] tweaked toml for git repo https://github.com/RUGMJ/led-strip-control written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/RUGMJ/led-strip-control 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] 2ff610ac302e5e9320004545bf70825662b4b3aba9c672c3a892bc03c0158835
[INFO] running `Command { std: "docker" "start" "-a" "2ff610ac302e5e9320004545bf70825662b4b3aba9c672c3a892bc03c0158835", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2ff610ac302e5e9320004545bf70825662b4b3aba9c672c3a892bc03c0158835", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ff610ac302e5e9320004545bf70825662b4b3aba9c672c3a892bc03c0158835", kill_on_drop: false }`
[INFO] [stdout] 2ff610ac302e5e9320004545bf70825662b4b3aba9c672c3a892bc03c0158835
[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] a68fd5713f353b4518815e3e40e3eb830198f26556b3fdf55b8146336dfdbb3d
[INFO] running `Command { std: "docker" "start" "-a" "a68fd5713f353b4518815e3e40e3eb830198f26556b3fdf55b8146336dfdbb3d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.146
[INFO] [stderr]    Compiling backtrace v0.3.67
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking socket2 v0.3.19
[INFO] [stderr]     Checking net2 v0.2.39
[INFO] [stderr]     Checking uuid v0.6.5
[INFO] [stderr]     Checking sacn-unofficial v0.9.0
[INFO] [stderr]     Checking led-strip-control v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.12s
[INFO] running `Command { std: "docker" "inspect" "a68fd5713f353b4518815e3e40e3eb830198f26556b3fdf55b8146336dfdbb3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a68fd5713f353b4518815e3e40e3eb830198f26556b3fdf55b8146336dfdbb3d", kill_on_drop: false }`
[INFO] [stdout] a68fd5713f353b4518815e3e40e3eb830198f26556b3fdf55b8146336dfdbb3d