[INFO] fetching crate freecut 0.1.10...
[INFO] checking freecut-0.1.10 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate freecut 0.1.10 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate freecut 0.1.10 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 freecut 0.1.10
[INFO] finished tweaking crates.io crate freecut 0.1.10
[INFO] tweaked toml for crates.io crate freecut 0.1.10 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate freecut 0.1.10 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded raw-window-handle v0.3.3
[INFO] [stderr]   Downloaded strum v0.20.0
[INFO] [stderr]   Downloaded cut-optimizer-2d v0.1.5
[INFO] [stderr]   Downloaded fltk-derive v0.15.14
[INFO] [stderr]   Downloaded crossterm_winapi v0.7.0
[INFO] [stderr]   Downloaded crossterm v0.19.0
[INFO] [stderr]   Downloaded pdf-canvas v0.6.0
[INFO] [stderr]   Downloaded strum_macros v0.20.1
[INFO] [stderr]   Downloaded libc v0.2.106
[INFO] [stderr]   Downloaded comfy-table v2.1.0
[INFO] [stderr]   Downloaded fltk v0.15.15
[INFO] [stderr]   Downloaded fltk-sys v0.15.14
[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] a7adf79e4aab7bd85e2f035980c9306a057b8bb253dc73a7197607114aba635f
[INFO] running `Command { std: "docker" "start" "-a" "a7adf79e4aab7bd85e2f035980c9306a057b8bb253dc73a7197607114aba635f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a7adf79e4aab7bd85e2f035980c9306a057b8bb253dc73a7197607114aba635f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7adf79e4aab7bd85e2f035980c9306a057b8bb253dc73a7197607114aba635f", kill_on_drop: false }`
[INFO] [stdout] a7adf79e4aab7bd85e2f035980c9306a057b8bb253dc73a7197607114aba635f
[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] 20136cd28107ca40e849cf951104d471862c40bfe714772764c7dc159ee3b795
[INFO] running `Command { std: "docker" "start" "-a" "20136cd28107ca40e849cf951104d471862c40bfe714772764c7dc159ee3b795", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.106
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]    Compiling cc v1.0.71
[INFO] [stderr]     Checking smallvec v1.7.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.15
[INFO] [stderr]    Compiling lazy_static v0.2.11
[INFO] [stderr]     Checking lock_api v0.4.5
[INFO] [stderr]     Checking strum v0.20.0
[INFO] [stderr]    Compiling pdf-canvas v0.6.0
[INFO] [stderr]    Compiling cmake v0.1.46
[INFO] [stderr]    Compiling fltk-sys v0.15.14
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking mio v0.7.14
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking raw-window-handle v0.3.3
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]     Checking signal-hook v0.1.17
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking crossterm v0.19.0
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking cut-optimizer-2d v0.1.5
[INFO] [stderr]    Compiling fltk-derive v0.15.14
[INFO] [stderr]    Compiling strum_macros v0.20.1
[INFO] [stderr]     Checking comfy-table v2.1.0
[INFO] [stderr]     Checking fltk v0.15.15
[INFO] [stderr]     Checking freecut v0.1.10 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 41.17s
[INFO] running `Command { std: "docker" "inspect" "20136cd28107ca40e849cf951104d471862c40bfe714772764c7dc159ee3b795", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20136cd28107ca40e849cf951104d471862c40bfe714772764c7dc159ee3b795", kill_on_drop: false }`
[INFO] [stdout] 20136cd28107ca40e849cf951104d471862c40bfe714772764c7dc159ee3b795