[INFO] fetching crate wifi_viewer 1.0.1...
[INFO] checking wifi_viewer-1.0.1 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate wifi_viewer 1.0.1 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate wifi_viewer 1.0.1 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 crates.io crate wifi_viewer 1.0.1
[INFO] finished tweaking crates.io crate wifi_viewer 1.0.1
[INFO] tweaked toml for crates.io crate wifi_viewer 1.0.1 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate crates.io crate wifi_viewer 1.0.1 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 subprocess v0.2.9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] f5bafa6264c6eb05f1c035dd9c5e88bb32aebdb90dfe0f8a9083df43fa0a392b
[INFO] running `Command { std: "docker" "start" "-a" "f5bafa6264c6eb05f1c035dd9c5e88bb32aebdb90dfe0f8a9083df43fa0a392b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f5bafa6264c6eb05f1c035dd9c5e88bb32aebdb90dfe0f8a9083df43fa0a392b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5bafa6264c6eb05f1c035dd9c5e88bb32aebdb90dfe0f8a9083df43fa0a392b", kill_on_drop: false }`
[INFO] [stdout] f5bafa6264c6eb05f1c035dd9c5e88bb32aebdb90dfe0f8a9083df43fa0a392b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 6e65822d6bedfd8b832422b0d545861722ecf5686192bdbad21419e56adea2c2
[INFO] running `Command { std: "docker" "start" "-a" "6e65822d6bedfd8b832422b0d545861722ecf5686192bdbad21419e56adea2c2", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling libc v0.2.127
[INFO] [stderr]     Checking either v1.7.0
[INFO] [stderr]     Checking regex-syntax v0.6.27
[INFO] [stderr]     Checking itertools v0.10.3
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking subprocess v0.2.9
[INFO] [stderr]     Checking regex v1.6.0
[INFO] [stderr]     Checking wifi_viewer v1.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.64s
[INFO] running `Command { std: "docker" "inspect" "6e65822d6bedfd8b832422b0d545861722ecf5686192bdbad21419e56adea2c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e65822d6bedfd8b832422b0d545861722ecf5686192bdbad21419e56adea2c2", kill_on_drop: false }`
[INFO] [stdout] 6e65822d6bedfd8b832422b0d545861722ecf5686192bdbad21419e56adea2c2
[INFO] checking wifi_viewer-1.0.1 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate wifi_viewer 1.0.1 into /workspace/builds/worker-5-tc2/source
[INFO] validating manifest of crates.io crate wifi_viewer 1.0.1 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 crates.io crate wifi_viewer 1.0.1
[INFO] finished tweaking crates.io crate wifi_viewer 1.0.1
[INFO] tweaked toml for crates.io crate wifi_viewer 1.0.1 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate crates.io crate wifi_viewer 1.0.1 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 13aa8c705acbbbfc55ee2f792ac60f59165fe8971fd0e3c9a956ace31ca68dfb
[INFO] running `Command { std: "docker" "start" "-a" "13aa8c705acbbbfc55ee2f792ac60f59165fe8971fd0e3c9a956ace31ca68dfb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "13aa8c705acbbbfc55ee2f792ac60f59165fe8971fd0e3c9a956ace31ca68dfb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "13aa8c705acbbbfc55ee2f792ac60f59165fe8971fd0e3c9a956ace31ca68dfb", kill_on_drop: false }`
[INFO] [stdout] 13aa8c705acbbbfc55ee2f792ac60f59165fe8971fd0e3c9a956ace31ca68dfb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 4f899c81c88a0404b4e7fecaeb9189a90cd4cc00cc36804a71622d3cfc36bb47
[INFO] running `Command { std: "docker" "start" "-a" "4f899c81c88a0404b4e7fecaeb9189a90cd4cc00cc36804a71622d3cfc36bb47", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling libc v0.2.127
[INFO] [stderr]     Checking either v1.7.0
[INFO] [stderr]     Checking regex-syntax v0.6.27
[INFO] [stderr]     Checking itertools v0.10.3
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking subprocess v0.2.9
[INFO] [stderr]     Checking regex v1.6.0
[INFO] [stderr]     Checking wifi_viewer v1.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.24s
[INFO] running `Command { std: "docker" "inspect" "4f899c81c88a0404b4e7fecaeb9189a90cd4cc00cc36804a71622d3cfc36bb47", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f899c81c88a0404b4e7fecaeb9189a90cd4cc00cc36804a71622d3cfc36bb47", kill_on_drop: false }`
[INFO] [stdout] 4f899c81c88a0404b4e7fecaeb9189a90cd4cc00cc36804a71622d3cfc36bb47