[INFO] cloning repository https://github.com/bs2kbs2k/cell-machine-art-generator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bs2kbs2k/cell-machine-art-generator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbs2kbs2k%2Fcell-machine-art-generator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbs2kbs2k%2Fcell-machine-art-generator'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d57f2f4339f0a256611b804df3e2adb2b430f218
[INFO] checking bs2kbs2k/cell-machine-art-generator against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbs2kbs2k%2Fcell-machine-art-generator" "/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/bs2kbs2k/cell-machine-art-generator on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/bs2kbs2k/cell-machine-art-generator
[INFO] finished tweaking git repo https://github.com/bs2kbs2k/cell-machine-art-generator
[INFO] tweaked toml for git repo https://github.com/bs2kbs2k/cell-machine-art-generator written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/bs2kbs2k/cell-machine-art-generator 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "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 either v1.6.1
[INFO] [stderr]   Downloaded which v4.2.1
[INFO] [stderr]   Downloaded thiserror-impl v1.0.26
[INFO] [stderr]   Downloaded native-dialog v0.5.5
[INFO] [stderr]   Downloaded wfd v0.1.7
[INFO] [stderr]   Downloaded thiserror v1.0.26
[INFO] [stderr]   Downloaded block v0.1.6
[INFO] [stderr]   Downloaded objc_id v0.1.1
[INFO] [stderr]   Downloaded raw-window-handle v0.3.3
[INFO] [stderr]   Downloaded adler32 v1.2.0
[INFO] [stderr]   Downloaded core-graphics-types v0.1.1
[INFO] [stderr]   Downloaded malloc_buf v0.0.6
[INFO] [stderr]   Downloaded color_quant v1.1.0
[INFO] [stderr]   Downloaded dirs-next v2.0.0
[INFO] [stderr]   Downloaded hermit-abi v0.1.19
[INFO] [stderr]   Downloaded autocfg v1.0.1
[INFO] [stderr]   Downloaded dirs-sys-next v0.1.2
[INFO] [stderr]   Downloaded memoffset v0.6.4
[INFO] [stderr]   Downloaded crossbeam-deque v0.8.0
[INFO] [stderr]   Downloaded objc-foundation v0.1.1
[INFO] [stderr]   Downloaded num-iter v0.1.42
[INFO] [stderr]   Downloaded miniz_oxide v0.3.7
[INFO] [stderr]   Downloaded anyhow v1.0.42
[INFO] [stderr]   Downloaded crossbeam-epoch v0.9.5
[INFO] [stderr]   Downloaded deflate v0.8.6
[INFO] [stderr]   Downloaded libc v0.2.98
[INFO] [stderr]   Downloaded crossbeam-channel v0.5.1
[INFO] [stderr]   Downloaded rayon v1.5.1
[INFO] [stderr]   Downloaded jpeg-decoder v0.1.22
[INFO] [stderr]   Downloaded image v0.23.14
[INFO] [stderr]   Downloaded winapi v0.3.9
[INFO] [stderr]   Downloaded imagequant-sys v3.0.6+sys2.15.0
[INFO] [stderr]   Downloaded tiff v0.6.1
[INFO] [stderr]   Downloaded syn v1.0.74
[INFO] [stderr]   Downloaded rayon-core v1.9.1
[INFO] [stderr]   Downloaded miniz_oxide v0.4.4
[INFO] [stderr]   Downloaded core-graphics v0.22.2
[INFO] [stderr]   Downloaded gif v0.11.2
[INFO] [stderr]   Downloaded num-rational v0.3.2
[INFO] [stderr]   Downloaded num-traits v0.2.14
[INFO] [stderr]   Downloaded crc32fast v1.2.1
[INFO] [stderr]   Downloaded png v0.16.8
[INFO] [stderr]   Downloaded weezl v0.1.5
[INFO] [stderr]   Downloaded cc v1.0.69
[INFO] [stderr]   Downloaded core-foundation v0.9.1
[INFO] [stderr]   Downloaded imagequant v3.0.3+sys2.14.0
[INFO] [stderr]   Downloaded cocoa v0.24.0
[INFO] [stderr]   Downloaded redox_users v0.4.0
[INFO] [stderr]   Downloaded crossbeam-utils v0.8.5
[INFO] [stderr]   Downloaded num_cpus v1.13.0
[INFO] [stderr]   Downloaded rgb v0.8.27
[INFO] [stderr]   Downloaded cocoa-foundation v0.1.0
[INFO] [stderr]   Downloaded wasi v0.10.2+wasi-snapshot-preview1
[INFO] [stderr]   Downloaded getrandom v0.2.3
[INFO] [stderr]   Downloaded once_cell v1.8.0
[INFO] [stderr]   Downloaded num-integer v0.1.44
[INFO] [stderr]   Downloaded scoped_threadpool v0.1.9
[INFO] [stderr]   Downloaded bytemuck v1.7.2
[INFO] [stderr]   Downloaded core-foundation-sys v0.8.2
[INFO] [stderr]   Downloaded bitflags v1.2.1
[INFO] [stderr]   Downloaded redox_syscall v0.2.9
[INFO] [stderr]   Downloaded proc-macro2 v1.0.28
[INFO] [stderr]   Downloaded quote v1.0.9
[INFO] [stderr]   Downloaded objc v0.2.7
[INFO] [stderr]   Downloaded unicode-xid v0.2.2
[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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 27f9893c2706d6e13aafe7c89a987f5bcd67daa94cda52a709963d07071c26db
[INFO] running `Command { std: "docker" "start" "-a" "27f9893c2706d6e13aafe7c89a987f5bcd67daa94cda52a709963d07071c26db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "27f9893c2706d6e13aafe7c89a987f5bcd67daa94cda52a709963d07071c26db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "27f9893c2706d6e13aafe7c89a987f5bcd67daa94cda52a709963d07071c26db", kill_on_drop: false }`
[INFO] [stdout] 27f9893c2706d6e13aafe7c89a987f5bcd67daa94cda52a709963d07071c26db
[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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 76c1fa4729a81a561d0928c2eb3a38b5f2e2512a8c76d2f84084cbb4af3cddbd
[INFO] running `Command { std: "docker" "start" "-a" "76c1fa4729a81a561d0928c2eb3a38b5f2e2512a8c76d2f84084cbb4af3cddbd", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]     Checking adler32 v1.2.0
[INFO] [stderr]     Checking bytemuck v1.7.2
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]     Checking crossbeam-channel v0.5.1
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling cc v1.0.69
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]     Checking weezl v0.1.5
[INFO] [stderr]     Checking deflate v0.8.6
[INFO] [stderr]     Checking dirs-sys-next v0.1.2
[INFO] [stderr]     Checking rgb v0.8.27
[INFO] [stderr]     Checking miniz_oxide v0.3.7
[INFO] [stderr]     Checking color_quant v1.1.0
[INFO] [stderr]    Compiling anyhow v1.0.42
[INFO] [stderr]     Checking gif v0.11.2
[INFO] [stderr]     Checking dirs-next v2.0.0
[INFO] [stderr]     Checking raw-window-handle v0.3.3
[INFO] [stderr]     Checking which v4.2.1
[INFO] [stderr]     Checking png v0.16.8
[INFO] [stderr]     Checking scoped_threadpool v0.1.9
[INFO] [stderr]    Compiling imagequant-sys v3.0.6+sys2.15.0
[INFO] [stderr]     Checking jpeg-decoder v0.1.22
[INFO] [stderr]    Compiling thiserror-impl v1.0.26
[INFO] [stderr]     Checking imagequant v3.0.3+sys2.14.0
[INFO] [stderr]     Checking tiff v0.6.1
[INFO] [stderr]     Checking image v0.23.14
[INFO] [stderr]     Checking thiserror v1.0.26
[INFO] [stderr]     Checking native-dialog v0.5.5
[INFO] [stderr]     Checking cell-machine-art-generator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.79s
[INFO] running `Command { std: "docker" "inspect" "76c1fa4729a81a561d0928c2eb3a38b5f2e2512a8c76d2f84084cbb4af3cddbd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76c1fa4729a81a561d0928c2eb3a38b5f2e2512a8c76d2f84084cbb4af3cddbd", kill_on_drop: false }`
[INFO] [stdout] 76c1fa4729a81a561d0928c2eb3a38b5f2e2512a8c76d2f84084cbb4af3cddbd