[INFO] fetching crate fractal-analysis 0.2.0... [INFO] checking fractal-analysis-0.2.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never [INFO] extracting crate fractal-analysis 0.2.0 into /workspace/builds/worker-0-tc1/source [INFO] validating manifest of crates.io crate fractal-analysis 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 fractal-analysis 0.2.0 [INFO] finished tweaking crates.io crate fractal-analysis 0.2.0 [INFO] tweaked toml for crates.io crate fractal-analysis 0.2.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 52 packages [INFO] [stderr] Adding arrayvec v0.6.1 (latest: v0.7.4) [INFO] [stderr] Adding bitflags v1.3.2 (latest: v2.5.0) [INFO] [stderr] Adding cloudabi v0.0.3 (latest: v0.1.0) [INFO] [stderr] Adding deflate v0.7.20 (latest: v1.0.0) [INFO] [stderr] Adding getrandom v0.1.16 (latest: v0.2.12) [INFO] [stderr] Adding gif v0.9.2 (latest: v0.13.1) [INFO] [stderr] Adding image v0.18.0 (latest: v0.25.1) [INFO] [stderr] Adding inflate v0.3.4 (latest: v0.4.5) [INFO] [stderr] Adding itertools v0.8.2 (latest: v0.12.1) [INFO] [stderr] Adding jpeg-decoder v0.1.22 (latest: v0.3.1) [INFO] [stderr] Adding noise v0.6.0 (latest: v0.9.0) [INFO] [stderr] Adding num v0.2.1 (latest: v0.4.1) [INFO] [stderr] Adding num-bigint v0.2.6 (latest: v0.4.4) [INFO] [stderr] Adding num-complex v0.2.4 (latest: v0.4.5) [INFO] [stderr] Adding num-rational v0.1.42 (latest: v0.4.1) [INFO] [stderr] Adding num-rational v0.2.4 (latest: v0.4.1) [INFO] [stderr] Adding num-traits v0.1.43 (latest: v0.2.18) [INFO] [stderr] Adding png v0.11.0 (latest: v0.17.13) [INFO] [stderr] Adding rand v0.5.6 (latest: v0.8.5) [INFO] [stderr] Adding rand v0.7.3 (latest: v0.8.5) [INFO] [stderr] Adding rand_chacha v0.2.2 (latest: v0.3.1) [INFO] [stderr] Adding rand_core v0.3.1 (latest: v0.6.4) [INFO] [stderr] Adding rand_core v0.4.2 (latest: v0.6.4) [INFO] [stderr] Adding rand_core v0.5.1 (latest: v0.6.4) [INFO] [stderr] Adding rand_hc v0.2.0 (latest: v0.3.2) [INFO] [stderr] Adding wasi v0.9.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0) [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] Downloading crates ... [INFO] [stderr] Downloaded noise v0.6.0 [INFO] [stderr] Downloaded png v0.11.0 [INFO] [stderr] Downloaded arrayvec v0.6.1 [INFO] [stderr] Downloaded lindel v0.1.1 [INFO] [stderr] Downloaded deflate v0.7.20 [INFO] [stderr] Downloaded rand v0.5.6 [INFO] [stderr] Downloaded morton-encoding v2.0.1 [INFO] [stderr] Downloaded lzw v0.10.0 [INFO] [stderr] Downloaded gif v0.9.2 [INFO] [stderr] Downloaded inflate v0.3.4 [INFO] [stderr] Downloaded image v0.18.0 [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] de8dc850fbc584afef090ecd77f4df3d6adb64b5def87dc038c83a0a99ba3fc4 [INFO] running `Command { std: "docker" "start" "-a" "de8dc850fbc584afef090ecd77f4df3d6adb64b5def87dc038c83a0a99ba3fc4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "de8dc850fbc584afef090ecd77f4df3d6adb64b5def87dc038c83a0a99ba3fc4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "de8dc850fbc584afef090ecd77f4df3d6adb64b5def87dc038c83a0a99ba3fc4", kill_on_drop: false }` [INFO] [stdout] de8dc850fbc584afef090ecd77f4df3d6adb64b5def87dc038c83a0a99ba3fc4 [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] 33ea6f259d12c1cd4e9a3d9ae679207061491df4f5e49fabd91e5ae7f84ce77a [INFO] running `Command { std: "docker" "start" "-a" "33ea6f259d12c1cd4e9a3d9ae679207061491df4f5e49fabd91e5ae7f84ce77a", kill_on_drop: false }` [INFO] [stderr] Compiling num-bigint v0.2.6 [INFO] [stderr] Compiling num-rational v0.2.4 [INFO] [stderr] Compiling num-complex v0.2.4 [INFO] [stderr] Checking deflate v0.7.20 [INFO] [stderr] Checking num-traits v0.1.43 [INFO] [stderr] Checking inflate v0.3.4 [INFO] [stderr] Checking rayon v1.10.0 [INFO] [stderr] Checking lzw v0.10.0 [INFO] [stderr] Checking enum_primitive v0.1.1 [INFO] [stderr] Checking num-rational v0.1.42 [INFO] [stderr] Checking gif v0.9.2 [INFO] [stderr] Checking scoped_threadpool v0.1.9 [INFO] [stderr] Checking rand_core v0.4.2 [INFO] [stderr] Checking itertools v0.8.2 [INFO] [stderr] Checking arrayvec v0.6.1 [INFO] [stderr] Checking png v0.11.0 [INFO] [stderr] Checking rand_core v0.3.1 [INFO] [stderr] Checking rand v0.5.6 [INFO] [stderr] Checking num v0.2.1 [INFO] [stderr] Checking morton-encoding v2.0.1 [INFO] [stderr] Checking lindel v0.1.1 [INFO] [stderr] Checking jpeg-decoder v0.1.22 [INFO] [stderr] Checking image v0.18.0 [INFO] [stderr] Checking noise v0.6.0 [INFO] [stderr] Checking fractal-analysis v0.2.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.18s [INFO] running `Command { std: "docker" "inspect" "33ea6f259d12c1cd4e9a3d9ae679207061491df4f5e49fabd91e5ae7f84ce77a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "33ea6f259d12c1cd4e9a3d9ae679207061491df4f5e49fabd91e5ae7f84ce77a", kill_on_drop: false }` [INFO] [stdout] 33ea6f259d12c1cd4e9a3d9ae679207061491df4f5e49fabd91e5ae7f84ce77a [INFO] checking fractal-analysis-0.2.0 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never [INFO] extracting crate fractal-analysis 0.2.0 into /workspace/builds/worker-0-tc2/source [INFO] validating manifest of crates.io crate fractal-analysis 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 fractal-analysis 0.2.0 [INFO] finished tweaking crates.io crate fractal-analysis 0.2.0 [INFO] tweaked toml for crates.io crate fractal-analysis 0.2.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "generate-lockfile" "--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] Locking 52 packages [INFO] [stderr] Adding arrayvec v0.6.1 (latest: v0.7.4) [INFO] [stderr] Adding bitflags v1.3.2 (latest: v2.5.0) [INFO] [stderr] Adding cloudabi v0.0.3 (latest: v0.1.0) [INFO] [stderr] Adding deflate v0.7.20 (latest: v1.0.0) [INFO] [stderr] Adding getrandom v0.1.16 (latest: v0.2.12) [INFO] [stderr] Adding gif v0.9.2 (latest: v0.13.1) [INFO] [stderr] Adding image v0.18.0 (latest: v0.25.1) [INFO] [stderr] Adding inflate v0.3.4 (latest: v0.4.5) [INFO] [stderr] Adding itertools v0.8.2 (latest: v0.12.1) [INFO] [stderr] Adding jpeg-decoder v0.1.22 (latest: v0.3.1) [INFO] [stderr] Adding noise v0.6.0 (latest: v0.9.0) [INFO] [stderr] Adding num v0.2.1 (latest: v0.4.1) [INFO] [stderr] Adding num-bigint v0.2.6 (latest: v0.4.4) [INFO] [stderr] Adding num-complex v0.2.4 (latest: v0.4.5) [INFO] [stderr] Adding num-rational v0.1.42 (latest: v0.4.1) [INFO] [stderr] Adding num-rational v0.2.4 (latest: v0.4.1) [INFO] [stderr] Adding num-traits v0.1.43 (latest: v0.2.18) [INFO] [stderr] Adding png v0.11.0 (latest: v0.17.13) [INFO] [stderr] Adding rand v0.5.6 (latest: v0.8.5) [INFO] [stderr] Adding rand v0.7.3 (latest: v0.8.5) [INFO] [stderr] Adding rand_chacha v0.2.2 (latest: v0.3.1) [INFO] [stderr] Adding rand_core v0.3.1 (latest: v0.6.4) [INFO] [stderr] Adding rand_core v0.4.2 (latest: v0.6.4) [INFO] [stderr] Adding rand_core v0.5.1 (latest: v0.6.4) [INFO] [stderr] Adding rand_hc v0.2.0 (latest: v0.3.2) [INFO] [stderr] Adding wasi v0.9.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0) [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] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [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] 353d24c6543d7fb77fcbda001cf2d5aabcadb3b7fbacd33adb84b61e5fcf7109 [INFO] running `Command { std: "docker" "start" "-a" "353d24c6543d7fb77fcbda001cf2d5aabcadb3b7fbacd33adb84b61e5fcf7109", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "353d24c6543d7fb77fcbda001cf2d5aabcadb3b7fbacd33adb84b61e5fcf7109", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "353d24c6543d7fb77fcbda001cf2d5aabcadb3b7fbacd33adb84b61e5fcf7109", kill_on_drop: false }` [INFO] [stdout] 353d24c6543d7fb77fcbda001cf2d5aabcadb3b7fbacd33adb84b61e5fcf7109 [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] 0f3d1aa225f0be81823c4c73b2b38431d38cde03927f0874007a32677db3e8e7 [INFO] running `Command { std: "docker" "start" "-a" "0f3d1aa225f0be81823c4c73b2b38431d38cde03927f0874007a32677db3e8e7", kill_on_drop: false }` [INFO] [stderr] Compiling num-bigint v0.2.6 [INFO] [stderr] Compiling num-rational v0.2.4 [INFO] [stderr] Compiling num-complex v0.2.4 [INFO] [stderr] Checking inflate v0.3.4 [INFO] [stderr] Checking deflate v0.7.20 [INFO] [stderr] Checking num-traits v0.1.43 [INFO] [stderr] Checking rayon v1.10.0 [INFO] [stderr] Checking lzw v0.10.0 [INFO] [stderr] Checking enum_primitive v0.1.1 [INFO] [stderr] Checking gif v0.9.2 [INFO] [stderr] Checking num-rational v0.1.42 [INFO] [stderr] Checking rand_core v0.4.2 [INFO] [stderr] Checking scoped_threadpool v0.1.9 [INFO] [stderr] Checking itertools v0.8.2 [INFO] [stderr] Checking arrayvec v0.6.1 [INFO] [stderr] Checking rand_core v0.3.1 [INFO] [stderr] Checking png v0.11.0 [INFO] [stderr] Checking rand v0.5.6 [INFO] [stderr] Checking num v0.2.1 [INFO] [stderr] Checking morton-encoding v2.0.1 [INFO] [stderr] Checking lindel v0.1.1 [INFO] [stderr] Checking jpeg-decoder v0.1.22 [INFO] [stderr] Checking image v0.18.0 [INFO] [stderr] Checking noise v0.6.0 [INFO] [stderr] Checking fractal-analysis v0.2.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.48s [INFO] running `Command { std: "docker" "inspect" "0f3d1aa225f0be81823c4c73b2b38431d38cde03927f0874007a32677db3e8e7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0f3d1aa225f0be81823c4c73b2b38431d38cde03927f0874007a32677db3e8e7", kill_on_drop: false }` [INFO] [stdout] 0f3d1aa225f0be81823c4c73b2b38431d38cde03927f0874007a32677db3e8e7