[INFO] fetching crate simple_clustering 0.2.0...
[INFO] checking simple_clustering-0.2.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate simple_clustering 0.2.0 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate simple_clustering 0.2.0 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 simple_clustering 0.2.0
[INFO] finished tweaking crates.io crate simple_clustering 0.2.0
[INFO] tweaked toml for crates.io crate simple_clustering 0.2.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate crates.io crate simple_clustering 0.2.0 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 fast-srgb8 v1.0.0
[INFO] [stderr]   Downloaded palette_derive v0.7.2
[INFO] [stderr]   Downloaded quote v1.0.31
[INFO] [stderr]   Downloaded image v0.24.6
[INFO] [stderr]   Downloaded syn v2.0.27
[INFO] [stderr]   Downloaded palette v0.7.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 9ff6e111de9b1b56d52dd21a6bd8eba9891e5fe8776ec4275aa3d39769c78b47
[INFO] running `Command { std: "docker" "start" "-a" "9ff6e111de9b1b56d52dd21a6bd8eba9891e5fe8776ec4275aa3d39769c78b47", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9ff6e111de9b1b56d52dd21a6bd8eba9891e5fe8776ec4275aa3d39769c78b47", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ff6e111de9b1b56d52dd21a6bd8eba9891e5fe8776ec4275aa3d39769c78b47", kill_on_drop: false }`
[INFO] [stdout] 9ff6e111de9b1b56d52dd21a6bd8eba9891e5fe8776ec4275aa3d39769c78b47
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] c6612ad1e535c18b4d61061e25b2f3f8b32fa959e927875aa4920acbb7adbfc6
[INFO] running `Command { std: "docker" "start" "-a" "c6612ad1e535c18b4d61061e25b2f3f8b32fa959e927875aa4920acbb7adbfc6", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.66
[INFO] [stderr]    Compiling unicode-ident v1.0.11
[INFO] [stderr]    Compiling num-traits v0.2.16
[INFO] [stderr]     Checking simd-adler32 v0.3.5
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]    Compiling palette v0.7.2
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking bytemuck v1.13.1
[INFO] [stderr]     Checking jpeg-decoder v0.3.0
[INFO] [stderr]     Checking fast-srgb8 v1.0.0
[INFO] [stderr]     Checking miniz_oxide v0.7.1
[INFO] [stderr]     Checking fdeflate v0.3.0
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]     Checking flate2 v1.0.26
[INFO] [stderr]    Compiling quote v1.0.31
[INFO] [stderr]     Checking png v0.17.9
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling syn v2.0.27
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking image v0.24.6
[INFO] [stderr]    Compiling palette_derive v0.7.2
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling clap_derive v3.2.25
[INFO] [stderr]     Checking clap v3.2.25
[INFO] [stderr]     Checking simple_clustering v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 19.41s
[INFO] running `Command { std: "docker" "inspect" "c6612ad1e535c18b4d61061e25b2f3f8b32fa959e927875aa4920acbb7adbfc6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6612ad1e535c18b4d61061e25b2f3f8b32fa959e927875aa4920acbb7adbfc6", kill_on_drop: false }`
[INFO] [stdout] c6612ad1e535c18b4d61061e25b2f3f8b32fa959e927875aa4920acbb7adbfc6
[INFO] checking simple_clustering-0.2.0 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate simple_clustering 0.2.0 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate simple_clustering 0.2.0 on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate simple_clustering 0.2.0
[INFO] finished tweaking crates.io crate simple_clustering 0.2.0
[INFO] tweaked toml for crates.io crate simple_clustering 0.2.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate crates.io crate simple_clustering 0.2.0 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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6e00ca9ecd08c5d75b60b505c8fcf59019e0cc29ca14999d7e970f81bf62500e
[INFO] running `Command { std: "docker" "start" "-a" "6e00ca9ecd08c5d75b60b505c8fcf59019e0cc29ca14999d7e970f81bf62500e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6e00ca9ecd08c5d75b60b505c8fcf59019e0cc29ca14999d7e970f81bf62500e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e00ca9ecd08c5d75b60b505c8fcf59019e0cc29ca14999d7e970f81bf62500e", kill_on_drop: false }`
[INFO] [stdout] 6e00ca9ecd08c5d75b60b505c8fcf59019e0cc29ca14999d7e970f81bf62500e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 72f70012f583b1acfeefc0b528278ebc8a5c95823941368ddb075d363681821f
[INFO] running `Command { std: "docker" "start" "-a" "72f70012f583b1acfeefc0b528278ebc8a5c95823941368ddb075d363681821f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.66
[INFO] [stderr]    Compiling unicode-ident v1.0.11
[INFO] [stderr]    Compiling num-traits v0.2.16
[INFO] [stderr]     Checking simd-adler32 v0.3.5
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]    Compiling palette v0.7.2
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking jpeg-decoder v0.3.0
[INFO] [stderr]     Checking fast-srgb8 v1.0.0
[INFO] [stderr]     Checking bytemuck v1.13.1
[INFO] [stderr]     Checking miniz_oxide v0.7.1
[INFO] [stderr]     Checking fdeflate v0.3.0
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]     Checking flate2 v1.0.26
[INFO] [stderr]    Compiling quote v1.0.31
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling syn v2.0.27
[INFO] [stderr]     Checking png v0.17.9
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking image v0.24.6
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling clap_derive v3.2.25
[INFO] [stderr]    Compiling palette_derive v0.7.2
[INFO] [stderr]     Checking clap v3.2.25
[INFO] [stderr]     Checking simple_clustering v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 18.30s
[INFO] running `Command { std: "docker" "inspect" "72f70012f583b1acfeefc0b528278ebc8a5c95823941368ddb075d363681821f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72f70012f583b1acfeefc0b528278ebc8a5c95823941368ddb075d363681821f", kill_on_drop: false }`
[INFO] [stdout] 72f70012f583b1acfeefc0b528278ebc8a5c95823941368ddb075d363681821f