[INFO] cloning repository https://github.com/frectonz/prime-portraits
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/frectonz/prime-portraits" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffrectonz%2Fprime-portraits", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffrectonz%2Fprime-portraits'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4c6c4553ab43fe8ce03fdc6c7672c9034b670c52
[INFO] checking frectonz/prime-portraits against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffrectonz%2Fprime-portraits" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/frectonz/prime-portraits 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/frectonz/prime-portraits
[INFO] finished tweaking git repo https://github.com/frectonz/prime-portraits
[INFO] tweaked toml for git repo https://github.com/frectonz/prime-portraits written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/frectonz/prime-portraits 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] e79c741429643ef31812e43bdb4d6bcc43bd66dccb02c16909a31808103ea3b0
[INFO] running `Command { std: "docker" "start" "-a" "e79c741429643ef31812e43bdb4d6bcc43bd66dccb02c16909a31808103ea3b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e79c741429643ef31812e43bdb4d6bcc43bd66dccb02c16909a31808103ea3b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e79c741429643ef31812e43bdb4d6bcc43bd66dccb02c16909a31808103ea3b0", kill_on_drop: false }`
[INFO] [stdout] e79c741429643ef31812e43bdb4d6bcc43bd66dccb02c16909a31808103ea3b0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] d14f063998d5d6b829f92ccf93de0373bb1aefca62cad84dc5318ce146079fc7
[INFO] running `Command { std: "docker" "start" "-a" "d14f063998d5d6b829f92ccf93de0373bb1aefca62cad84dc5318ce146079fc7", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]    Compiling libm v0.2.8
[INFO] [stderr]    Compiling eyre v0.6.11
[INFO] [stderr]    Compiling serde v1.0.193
[INFO] [stderr]     Checking gimli v0.28.1
[INFO] [stderr]     Checking smallvec v1.11.2
[INFO] [stderr]     Checking memchr v2.7.1
[INFO] [stderr]     Checking flume v0.11.0
[INFO] [stderr]    Compiling num-bigint v0.4.4
[INFO] [stderr]     Checking bytemuck v1.14.0
[INFO] [stderr]    Compiling num-bigint-dig v0.8.4
[INFO] [stderr]     Checking owo-colors v3.5.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking sharded-slab v0.1.7
[INFO] [stderr]     Checking rustc-demangle v0.1.23
[INFO] [stderr]     Checking indenter v0.3.3
[INFO] [stderr]     Checking qoi v0.4.1
[INFO] [stderr]     Checking exr v1.71.0
[INFO] [stderr]     Checking tracing-subscriber v0.3.18
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]     Checking num-rational v0.4.1
[INFO] [stderr]     Checking getrandom v0.2.11
[INFO] [stderr]     Checking object v0.32.2
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking tracing-error v0.2.0
[INFO] [stderr]     Checking color-spantrace v0.2.1
[INFO] [stderr]     Checking addr2line v0.21.0
[INFO] [stderr]    Compiling backtrace v0.3.69
[INFO] [stderr]     Checking image v0.24.7
[INFO] [stderr]     Checking color-eyre v0.6.2
[INFO] [stderr]     Checking prime-portraits v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.95s
[INFO] running `Command { std: "docker" "inspect" "d14f063998d5d6b829f92ccf93de0373bb1aefca62cad84dc5318ce146079fc7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d14f063998d5d6b829f92ccf93de0373bb1aefca62cad84dc5318ce146079fc7", kill_on_drop: false }`
[INFO] [stdout] d14f063998d5d6b829f92ccf93de0373bb1aefca62cad84dc5318ce146079fc7
[INFO] checking frectonz/prime-portraits against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffrectonz%2Fprime-portraits" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/frectonz/prime-portraits 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/frectonz/prime-portraits
[INFO] finished tweaking git repo https://github.com/frectonz/prime-portraits
[INFO] tweaked toml for git repo https://github.com/frectonz/prime-portraits written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/frectonz/prime-portraits 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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 5dda951e0a772ca559d8eda4c362fd07e862ba8463020b508684e3a10179e467
[INFO] running `Command { std: "docker" "start" "-a" "5dda951e0a772ca559d8eda4c362fd07e862ba8463020b508684e3a10179e467", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5dda951e0a772ca559d8eda4c362fd07e862ba8463020b508684e3a10179e467", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5dda951e0a772ca559d8eda4c362fd07e862ba8463020b508684e3a10179e467", kill_on_drop: false }`
[INFO] [stdout] 5dda951e0a772ca559d8eda4c362fd07e862ba8463020b508684e3a10179e467
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 5e450ed2d7badb972c32a52358a8b875ac0d608023a72f84315c2918b9568b04
[INFO] running `Command { std: "docker" "start" "-a" "5e450ed2d7badb972c32a52358a8b875ac0d608023a72f84315c2918b9568b04", kill_on_drop: false }`
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]    Compiling serde v1.0.193
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]    Compiling libm v0.2.8
[INFO] [stderr]    Compiling eyre v0.6.11
[INFO] [stderr]     Checking gimli v0.28.1
[INFO] [stderr]     Checking smallvec v1.11.2
[INFO] [stderr]     Checking memchr v2.7.1
[INFO] [stderr]     Checking flume v0.11.0
[INFO] [stderr]    Compiling num-bigint v0.4.4
[INFO] [stderr]     Checking rustc-demangle v0.1.23
[INFO] [stderr]    Compiling num-bigint-dig v0.8.4
[INFO] [stderr]     Checking bytemuck v1.14.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking indenter v0.3.3
[INFO] [stderr]     Checking sharded-slab v0.1.7
[INFO] [stderr]     Checking owo-colors v3.5.0
[INFO] [stderr]     Checking exr v1.71.0
[INFO] [stderr]     Checking qoi v0.4.1
[INFO] [stderr]     Checking object v0.32.2
[INFO] [stderr]     Checking num-rational v0.4.1
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]     Checking getrandom v0.2.11
[INFO] [stderr]     Checking tracing-subscriber v0.3.18
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]    Compiling backtrace v0.3.69
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking tracing-error v0.2.0
[INFO] [stderr]     Checking color-spantrace v0.2.1
[INFO] [stderr]     Checking image v0.24.7
[INFO] [stderr]     Checking addr2line v0.21.0
[INFO] [stderr]     Checking color-eyre v0.6.2
[INFO] [stderr]     Checking prime-portraits v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 14.25s
[INFO] running `Command { std: "docker" "inspect" "5e450ed2d7badb972c32a52358a8b875ac0d608023a72f84315c2918b9568b04", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e450ed2d7badb972c32a52358a8b875ac0d608023a72f84315c2918b9568b04", kill_on_drop: false }`
[INFO] [stdout] 5e450ed2d7badb972c32a52358a8b875ac0d608023a72f84315c2918b9568b04