[INFO] fetching crate rusty_hausdorff 0.2.0...
[INFO] checking rusty_hausdorff-0.2.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate rusty_hausdorff 0.2.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate rusty_hausdorff 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 rusty_hausdorff 0.2.0
[INFO] finished tweaking crates.io crate rusty_hausdorff 0.2.0
[INFO] tweaked toml for crates.io crate rusty_hausdorff 0.2.0 written to /workspace/builds/worker-4-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]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 46 packages
[INFO] [stderr]       Adding generic-array v0.14.7 (latest: v1.0.0)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[INFO] [stderr]       Adding zip v0.5.13 (latest: v0.6.6)
[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]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 07c87d825b33709cf7ff0e3aed7794940675c13b79832cb4722f13dbb7c47c93
[INFO] running `Command { std: "docker" "start" "-a" "07c87d825b33709cf7ff0e3aed7794940675c13b79832cb4722f13dbb7c47c93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "07c87d825b33709cf7ff0e3aed7794940675c13b79832cb4722f13dbb7c47c93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07c87d825b33709cf7ff0e3aed7794940675c13b79832cb4722f13dbb7c47c93", kill_on_drop: false }`
[INFO] [stdout] 07c87d825b33709cf7ff0e3aed7794940675c13b79832cb4722f13dbb7c47c93
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 31c42741b4b4c8551da97612eb65458e89360e7d9ac03c6ae6b704bd2eedc3f4
[INFO] running `Command { std: "docker" "start" "-a" "31c42741b4b4c8551da97612eb65458e89360e7d9ac03c6ae6b704bd2eedc3f4", kill_on_drop: false }`
[INFO] [stderr]     Checking ucd-trie v0.1.6
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]    Compiling matrixmultiply v0.3.8
[INFO] [stderr]    Compiling num-bigint v0.4.4
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]     Checking flate2 v1.0.28
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking num-complex v0.4.5
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking ndarray v0.15.6
[INFO] [stderr]    Compiling thiserror-impl v1.0.58
[INFO] [stderr]    Compiling thiserror v1.0.58
[INFO] [stderr]    Compiling pest v2.7.9
[INFO] [stderr]     Checking zip v0.5.13
[INFO] [stderr]    Compiling pest_meta v2.7.9
[INFO] [stderr]    Compiling pest_generator v2.7.9
[INFO] [stderr]    Compiling pest_derive v2.7.9
[INFO] [stderr]     Checking py_literal v0.4.0
[INFO] [stderr]     Checking ndarray-npy v0.8.1
[INFO] [stderr]     Checking rusty_hausdorff v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.86s
[INFO] running `Command { std: "docker" "inspect" "31c42741b4b4c8551da97612eb65458e89360e7d9ac03c6ae6b704bd2eedc3f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "31c42741b4b4c8551da97612eb65458e89360e7d9ac03c6ae6b704bd2eedc3f4", kill_on_drop: false }`
[INFO] [stdout] 31c42741b4b4c8551da97612eb65458e89360e7d9ac03c6ae6b704bd2eedc3f4
[INFO] checking rusty_hausdorff-0.2.0 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate rusty_hausdorff 0.2.0 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate rusty_hausdorff 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 rusty_hausdorff 0.2.0
[INFO] finished tweaking crates.io crate rusty_hausdorff 0.2.0
[INFO] tweaked toml for crates.io crate rusty_hausdorff 0.2.0 written to /workspace/builds/worker-4-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]      Locking 46 packages
[INFO] [stderr]       Adding generic-array v0.14.7 (latest: v1.0.0)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[INFO] [stderr]       Adding zip v0.5.13 (latest: v0.6.6)
[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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 5448f0710a8640db2dba90c9f3b09be06cb419b7cf3cae4e4ba3625b900aeff6
[INFO] running `Command { std: "docker" "start" "-a" "5448f0710a8640db2dba90c9f3b09be06cb419b7cf3cae4e4ba3625b900aeff6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5448f0710a8640db2dba90c9f3b09be06cb419b7cf3cae4e4ba3625b900aeff6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5448f0710a8640db2dba90c9f3b09be06cb419b7cf3cae4e4ba3625b900aeff6", kill_on_drop: false }`
[INFO] [stdout] 5448f0710a8640db2dba90c9f3b09be06cb419b7cf3cae4e4ba3625b900aeff6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 8f2846f6e2ca794972e5a959f4715375ad3d3c2a1b16d234de926b78c92d0de4
[INFO] running `Command { std: "docker" "start" "-a" "8f2846f6e2ca794972e5a959f4715375ad3d3c2a1b16d234de926b78c92d0de4", kill_on_drop: false }`
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]     Checking ucd-trie v0.1.6
[INFO] [stderr]    Compiling num-bigint v0.4.4
[INFO] [stderr]    Compiling matrixmultiply v0.3.8
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]     Checking flate2 v1.0.28
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking num-complex v0.4.5
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking ndarray v0.15.6
[INFO] [stderr]    Compiling thiserror-impl v1.0.58
[INFO] [stderr]    Compiling thiserror v1.0.58
[INFO] [stderr]    Compiling pest v2.7.9
[INFO] [stderr]     Checking zip v0.5.13
[INFO] [stderr]    Compiling pest_meta v2.7.9
[INFO] [stderr]    Compiling pest_generator v2.7.9
[INFO] [stderr]    Compiling pest_derive v2.7.9
[INFO] [stderr]     Checking py_literal v0.4.0
[INFO] [stderr]     Checking ndarray-npy v0.8.1
[INFO] [stderr]     Checking rusty_hausdorff v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.36s
[INFO] running `Command { std: "docker" "inspect" "8f2846f6e2ca794972e5a959f4715375ad3d3c2a1b16d234de926b78c92d0de4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f2846f6e2ca794972e5a959f4715375ad3d3c2a1b16d234de926b78c92d0de4", kill_on_drop: false }`
[INFO] [stdout] 8f2846f6e2ca794972e5a959f4715375ad3d3c2a1b16d234de926b78c92d0de4