[INFO] fetching crate rustcat 3.0.0...
[INFO] checking rustcat-3.0.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate rustcat 3.0.0 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate rustcat 3.0.0 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] removed /workspace/builds/worker-5-tc1/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate rustcat 3.0.0
[INFO] finished tweaking crates.io crate rustcat 3.0.0
[INFO] tweaked toml for crates.io crate rustcat 3.0.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate crates.io crate rustcat 3.0.0 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]  Downloading crates ...
[INFO] [stderr]   Downloaded clipboard-win v4.2.1
[INFO] [stderr]   Downloaded termios v0.3.3
[INFO] [stderr]   Downloaded clap_derive v3.2.17
[INFO] [stderr]   Downloaded redox_syscall v0.2.8
[INFO] [stderr]   Downloaded clap v3.2.17
[INFO] [stderr]   Downloaded libc v0.2.131
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] c5f9006c1b859b7f4d28807efb1cddda16f254c5329e1f11c15accda9891ff85
[INFO] running `Command { std: "docker" "start" "-a" "c5f9006c1b859b7f4d28807efb1cddda16f254c5329e1f11c15accda9891ff85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c5f9006c1b859b7f4d28807efb1cddda16f254c5329e1f11c15accda9891ff85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5f9006c1b859b7f4d28807efb1cddda16f254c5329e1f11c15accda9891ff85", kill_on_drop: false }`
[INFO] [stdout] c5f9006c1b859b7f4d28807efb1cddda16f254c5329e1f11c15accda9891ff85
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] b248906968c44befca4af053e47e5cf9221e9008aa4a15df5f3b95b263cbb8ca
[INFO] running `Command { std: "docker" "start" "-a" "b248906968c44befca4af053e47e5cf9221e9008aa4a15df5f3b95b263cbb8ca", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.131
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]     Checking endian-type v0.1.2
[INFO] [stderr]    Compiling signal-hook v0.3.14
[INFO] [stderr]     Checking utf8parse v0.2.0
[INFO] [stderr]     Checking unicode-segmentation v1.7.1
[INFO] [stderr]    Compiling clap_derive v3.2.17
[INFO] [stderr]     Checking nibble_vec v0.1.0
[INFO] [stderr]     Checking radix_trie v0.2.1
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking dirs-sys-next v0.1.2
[INFO] [stderr]     Checking fd-lock v3.0.0
[INFO] [stderr]     Checking nix v0.24.2
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking termios v0.3.3
[INFO] [stderr]     Checking colored v1.9.3
[INFO] [stderr]     Checking colored v2.0.0
[INFO] [stderr]     Checking dirs-next v2.0.0
[INFO] [stderr]     Checking fern v0.6.1
[INFO] [stderr]     Checking clap v3.2.17
[INFO] [stderr]     Checking rustyline v10.0.0
[INFO] [stderr]     Checking rustcat v3.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.45s
[INFO] running `Command { std: "docker" "inspect" "b248906968c44befca4af053e47e5cf9221e9008aa4a15df5f3b95b263cbb8ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b248906968c44befca4af053e47e5cf9221e9008aa4a15df5f3b95b263cbb8ca", kill_on_drop: false }`
[INFO] [stdout] b248906968c44befca4af053e47e5cf9221e9008aa4a15df5f3b95b263cbb8ca
[INFO] checking rustcat-3.0.0 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate rustcat 3.0.0 into /workspace/builds/worker-5-tc2/source
[INFO] validating manifest of crates.io crate rustcat 3.0.0 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] removed /workspace/builds/worker-5-tc2/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate rustcat 3.0.0
[INFO] finished tweaking crates.io crate rustcat 3.0.0
[INFO] tweaked toml for crates.io crate rustcat 3.0.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate crates.io crate rustcat 3.0.0 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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 363c52fdb95c11c780709fb067cc2bd2c3f288e133e6c3e5f03035f00935edbe
[INFO] running `Command { std: "docker" "start" "-a" "363c52fdb95c11c780709fb067cc2bd2c3f288e133e6c3e5f03035f00935edbe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "363c52fdb95c11c780709fb067cc2bd2c3f288e133e6c3e5f03035f00935edbe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "363c52fdb95c11c780709fb067cc2bd2c3f288e133e6c3e5f03035f00935edbe", kill_on_drop: false }`
[INFO] [stdout] 363c52fdb95c11c780709fb067cc2bd2c3f288e133e6c3e5f03035f00935edbe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 22e8bfdb0d8d45f06cd10c8752c61e1ef72cf1da3f301615f2bae7e9e1830e84
[INFO] running `Command { std: "docker" "start" "-a" "22e8bfdb0d8d45f06cd10c8752c61e1ef72cf1da3f301615f2bae7e9e1830e84", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.131
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling signal-hook v0.3.14
[INFO] [stderr]     Checking endian-type v0.1.2
[INFO] [stderr]     Checking utf8parse v0.2.0
[INFO] [stderr]     Checking unicode-segmentation v1.7.1
[INFO] [stderr]    Compiling clap_derive v3.2.17
[INFO] [stderr]     Checking nibble_vec v0.1.0
[INFO] [stderr]     Checking radix_trie v0.2.1
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking dirs-sys-next v0.1.2
[INFO] [stderr]     Checking nix v0.24.2
[INFO] [stderr]     Checking fd-lock v3.0.0
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking termios v0.3.3
[INFO] [stderr]     Checking colored v1.9.3
[INFO] [stderr]     Checking colored v2.0.0
[INFO] [stderr]     Checking dirs-next v2.0.0
[INFO] [stderr]     Checking fern v0.6.1
[INFO] [stderr]     Checking clap v3.2.17
[INFO] [stderr]     Checking rustyline v10.0.0
[INFO] [stderr]     Checking rustcat v3.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.74s
[INFO] running `Command { std: "docker" "inspect" "22e8bfdb0d8d45f06cd10c8752c61e1ef72cf1da3f301615f2bae7e9e1830e84", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22e8bfdb0d8d45f06cd10c8752c61e1ef72cf1da3f301615f2bae7e9e1830e84", kill_on_drop: false }`
[INFO] [stdout] 22e8bfdb0d8d45f06cd10c8752c61e1ef72cf1da3f301615f2bae7e9e1830e84