[INFO] fetching crate dfu-flasher 0.4.2...
[INFO] checking dfu-flasher-0.4.2 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate dfu-flasher 0.4.2 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate dfu-flasher 0.4.2 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 dfu-flasher 0.4.2
[INFO] finished tweaking crates.io crate dfu-flasher 0.4.2
[INFO] tweaked toml for crates.io crate dfu-flasher 0.4.2 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate crates.io crate dfu-flasher 0.4.2 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 serde_derive v1.0.125
[INFO] [stderr]   Downloaded env_logger v0.7.1
[INFO] [stderr]   Downloaded usbapi v0.4.2
[INFO] [stderr]   Downloaded sysfs-serde v0.2.3
[INFO] [stderr]   Downloaded dfu v0.4.2
[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] d8364a1677024e3f9d6d49685b715916d5c23a734a18a5882940ecdc939a8037
[INFO] running `Command { std: "docker" "start" "-a" "d8364a1677024e3f9d6d49685b715916d5c23a734a18a5882940ecdc939a8037", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d8364a1677024e3f9d6d49685b715916d5c23a734a18a5882940ecdc939a8037", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d8364a1677024e3f9d6d49685b715916d5c23a734a18a5882940ecdc939a8037", kill_on_drop: false }`
[INFO] [stdout] d8364a1677024e3f9d6d49685b715916d5c23a734a18a5882940ecdc939a8037
[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] 2fdd4afcce9f1e8e1fa8bca3c3dfeda6e17bb0f4dbf43773b85dc3112386244a
[INFO] running `Command { std: "docker" "start" "-a" "2fdd4afcce9f1e8e1fa8bca3c3dfeda6e17bb0f4dbf43773b85dc3112386244a", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking sysfs-serde v0.2.3
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]    Compiling heck v0.3.2
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling structopt-derive v0.4.14
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking structopt v0.3.21
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking usbapi v0.4.2
[INFO] [stderr]     Checking dfu v0.4.2
[INFO] [stderr]     Checking dfu-flasher v0.4.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.77s
[INFO] running `Command { std: "docker" "inspect" "2fdd4afcce9f1e8e1fa8bca3c3dfeda6e17bb0f4dbf43773b85dc3112386244a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2fdd4afcce9f1e8e1fa8bca3c3dfeda6e17bb0f4dbf43773b85dc3112386244a", kill_on_drop: false }`
[INFO] [stdout] 2fdd4afcce9f1e8e1fa8bca3c3dfeda6e17bb0f4dbf43773b85dc3112386244a