[INFO] cloning repository https://github.com/cjyar/wordsearch
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cjyar/wordsearch" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcjyar%2Fwordsearch", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcjyar%2Fwordsearch'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 609e6e64b3c3d9a0f964391fc8bfc2f3c063fcbb
[INFO] checking cjyar/wordsearch against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcjyar%2Fwordsearch" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cjyar/wordsearch 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 git repo https://github.com/cjyar/wordsearch
[INFO] finished tweaking git repo https://github.com/cjyar/wordsearch
[INFO] tweaked toml for git repo https://github.com/cjyar/wordsearch written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/cjyar/wordsearch 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 rand_derive2 v0.1.21
[INFO] [stderr]   Downloaded simba v0.7.3
[INFO] [stderr]   Downloaded proc_macro2_helper v0.2.10
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 2fd42cb7cbfbb5250f2e3828cac4c6181b10f3b329fb2897b6f917a2c0701886
[INFO] running `Command { std: "docker" "start" "-a" "2fd42cb7cbfbb5250f2e3828cac4c6181b10f3b329fb2897b6f917a2c0701886", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2fd42cb7cbfbb5250f2e3828cac4c6181b10f3b329fb2897b6f917a2c0701886", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2fd42cb7cbfbb5250f2e3828cac4c6181b10f3b329fb2897b6f917a2c0701886", kill_on_drop: false }`
[INFO] [stdout] 2fd42cb7cbfbb5250f2e3828cac4c6181b10f3b329fb2897b6f917a2c0701886
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 8764a615a5f81980dc53bb6e09f11ad3f22ee91be2561fe27a53633cb44a7c8e
[INFO] running `Command { std: "docker" "start" "-a" "8764a615a5f81980dc53bb6e09f11ad3f22ee91be2561fe27a53633cb44a7c8e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.152
[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]     Checking bytemuck v1.14.1
[INFO] [stderr]    Compiling num-bigint v0.4.4
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]     Checking weezl v0.1.8
[INFO] [stderr]     Checking num-complex v0.4.4
[INFO] [stderr]     Checking approx v0.5.1
[INFO] [stderr]    Compiling syn v2.0.43
[INFO] [stderr]     Checking fdeflate v0.3.4
[INFO] [stderr]     Checking ttf-parser v0.15.2
[INFO] [stderr]     Checking anstyle v1.0.5
[INFO] [stderr]     Checking custom_derive v0.1.7
[INFO] [stderr]     Checking ab_glyph_rasterizer v0.1.8
[INFO] [stderr]     Checking conv v0.3.3
[INFO] [stderr]     Checking anstream v0.6.11
[INFO] [stderr]     Checking safe_arch v0.7.1
[INFO] [stderr]     Checking qoi v0.4.1
[INFO] [stderr]     Checking gif v0.12.0
[INFO] [stderr]     Checking png v0.17.11
[INFO] [stderr]     Checking clap_builder v4.4.18
[INFO] [stderr]     Checking wide v0.7.15
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
[INFO] [stderr]     Checking crossbeam-deque v0.8.5
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking rayon v1.8.1
[INFO] [stderr]     Checking exr v1.71.0
[INFO] [stderr]     Checking owned_ttf_parser v0.15.2
[INFO] [stderr]     Checking rusttype v0.9.3
[INFO] [stderr]     Checking simba v0.7.3
[INFO] [stderr]     Checking num v0.4.1
[INFO] [stderr]     Checking rand_distr v0.2.2
[INFO] [stderr]    Compiling proc_macro2_helper v0.2.10
[INFO] [stderr]     Checking jpeg-decoder v0.3.1
[INFO] [stderr]    Compiling clap_derive v4.4.7
[INFO] [stderr]    Compiling rand_derive2 v0.1.21
[INFO] [stderr]     Checking tiff v0.9.1
[INFO] [stderr]     Checking image v0.24.8
[INFO] [stderr]     Checking clap v4.4.18
[INFO] [stderr]     Checking nalgebra v0.30.1
[INFO] [stderr]     Checking imageproc v0.23.0
[INFO] [stderr]     Checking wordsearch v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 16.94s
[INFO] running `Command { std: "docker" "inspect" "8764a615a5f81980dc53bb6e09f11ad3f22ee91be2561fe27a53633cb44a7c8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8764a615a5f81980dc53bb6e09f11ad3f22ee91be2561fe27a53633cb44a7c8e", kill_on_drop: false }`
[INFO] [stdout] 8764a615a5f81980dc53bb6e09f11ad3f22ee91be2561fe27a53633cb44a7c8e
[INFO] checking cjyar/wordsearch against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcjyar%2Fwordsearch" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cjyar/wordsearch 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 git repo https://github.com/cjyar/wordsearch
[INFO] finished tweaking git repo https://github.com/cjyar/wordsearch
[INFO] tweaked toml for git repo https://github.com/cjyar/wordsearch written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/cjyar/wordsearch 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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 5e5b0e44897fca6046ca1b23b6d43404bf3e0880ea6f8558531691e98e9fe60c
[INFO] running `Command { std: "docker" "start" "-a" "5e5b0e44897fca6046ca1b23b6d43404bf3e0880ea6f8558531691e98e9fe60c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5e5b0e44897fca6046ca1b23b6d43404bf3e0880ea6f8558531691e98e9fe60c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e5b0e44897fca6046ca1b23b6d43404bf3e0880ea6f8558531691e98e9fe60c", kill_on_drop: false }`
[INFO] [stdout] 5e5b0e44897fca6046ca1b23b6d43404bf3e0880ea6f8558531691e98e9fe60c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 7230021f6d5f24301f97f8385fd14745a008424f28d4317fc5c15ef2c29693da
[INFO] running `Command { std: "docker" "start" "-a" "7230021f6d5f24301f97f8385fd14745a008424f28d4317fc5c15ef2c29693da", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.152
[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]     Checking bytemuck v1.14.1
[INFO] [stderr]    Compiling num-bigint v0.4.4
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]     Checking num-complex v0.4.4
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]     Checking weezl v0.1.8
[INFO] [stderr]    Compiling syn v2.0.43
[INFO] [stderr]     Checking fdeflate v0.3.4
[INFO] [stderr]     Checking approx v0.5.1
[INFO] [stderr]     Checking anstyle v1.0.5
[INFO] [stderr]     Checking ttf-parser v0.15.2
[INFO] [stderr]     Checking custom_derive v0.1.7
[INFO] [stderr]     Checking ab_glyph_rasterizer v0.1.8
[INFO] [stderr]     Checking conv v0.3.3
[INFO] [stderr]     Checking anstream v0.6.11
[INFO] [stderr]     Checking gif v0.12.0
[INFO] [stderr]     Checking safe_arch v0.7.1
[INFO] [stderr]     Checking qoi v0.4.1
[INFO] [stderr]     Checking png v0.17.11
[INFO] [stderr]     Checking clap_builder v4.4.18
[INFO] [stderr]     Checking wide v0.7.15
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
[INFO] [stderr]     Checking crossbeam-deque v0.8.5
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking owned_ttf_parser v0.15.2
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rusttype v0.9.3
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking rayon v1.8.1
[INFO] [stderr]     Checking exr v1.71.0
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking simba v0.7.3
[INFO] [stderr]     Checking rand_distr v0.2.2
[INFO] [stderr]     Checking num v0.4.1
[INFO] [stderr]     Checking jpeg-decoder v0.3.1
[INFO] [stderr]    Compiling proc_macro2_helper v0.2.10
[INFO] [stderr]     Checking tiff v0.9.1
[INFO] [stderr]    Compiling clap_derive v4.4.7
[INFO] [stderr]    Compiling rand_derive2 v0.1.21
[INFO] [stderr]     Checking image v0.24.8
[INFO] [stderr]     Checking clap v4.4.18
[INFO] [stderr]     Checking nalgebra v0.30.1
[INFO] [stderr]     Checking imageproc v0.23.0
[INFO] [stderr]     Checking wordsearch v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 19.56s
[INFO] running `Command { std: "docker" "inspect" "7230021f6d5f24301f97f8385fd14745a008424f28d4317fc5c15ef2c29693da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7230021f6d5f24301f97f8385fd14745a008424f28d4317fc5c15ef2c29693da", kill_on_drop: false }`
[INFO] [stdout] 7230021f6d5f24301f97f8385fd14745a008424f28d4317fc5c15ef2c29693da