[INFO] fetching crate orca-rs 0.3.0...
[INFO] checking orca-rs-0.3.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate orca-rs 0.3.0 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate orca-rs 0.3.0 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 orca-rs 0.3.0
[INFO] finished tweaking crates.io crate orca-rs 0.3.0
[INFO] tweaked toml for crates.io crate orca-rs 0.3.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate crates.io crate orca-rs 0.3.0 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded env_logger v0.9.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 9a3a10784a26afa82a2127dfbd3161ed41f35031267ee362c5ca652182f776ab
[INFO] running `Command { std: "docker" "start" "-a" "9a3a10784a26afa82a2127dfbd3161ed41f35031267ee362c5ca652182f776ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9a3a10784a26afa82a2127dfbd3161ed41f35031267ee362c5ca652182f776ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a3a10784a26afa82a2127dfbd3161ed41f35031267ee362c5ca652182f776ab", kill_on_drop: false }`
[INFO] [stdout] 9a3a10784a26afa82a2127dfbd3161ed41f35031267ee362c5ca652182f776ab
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 8c3f98e47db0150f911bef048ce557a0fe66aa577b3d60d4ac63d70f04250480
[INFO] running `Command { std: "docker" "start" "-a" "8c3f98e47db0150f911bef048ce557a0fe66aa577b3d60d4ac63d70f04250480", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling libc v0.2.133
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]     Checking regex-syntax v0.6.27
[INFO] [stderr]     Checking aho-corasick v0.7.19
[INFO] [stderr]     Checking matrixmultiply v0.3.2
[INFO] [stderr]     Checking regex v1.6.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking num-complex v0.4.2
[INFO] [stderr]     Checking env_logger v0.9.1
[INFO] [stderr]     Checking ndarray v0.15.4
[INFO] [stderr]     Checking orca-rs v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.07s
[INFO] running `Command { std: "docker" "inspect" "8c3f98e47db0150f911bef048ce557a0fe66aa577b3d60d4ac63d70f04250480", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c3f98e47db0150f911bef048ce557a0fe66aa577b3d60d4ac63d70f04250480", kill_on_drop: false }`
[INFO] [stdout] 8c3f98e47db0150f911bef048ce557a0fe66aa577b3d60d4ac63d70f04250480
[INFO] checking orca-rs-0.3.0 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate orca-rs 0.3.0 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate orca-rs 0.3.0 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 orca-rs 0.3.0
[INFO] finished tweaking crates.io crate orca-rs 0.3.0
[INFO] tweaked toml for crates.io crate orca-rs 0.3.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate crates.io crate orca-rs 0.3.0 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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 9ff255c6196266ee8207f6a7156db7c759f80b65112b87fbf1960b448606b4ec
[INFO] running `Command { std: "docker" "start" "-a" "9ff255c6196266ee8207f6a7156db7c759f80b65112b87fbf1960b448606b4ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9ff255c6196266ee8207f6a7156db7c759f80b65112b87fbf1960b448606b4ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ff255c6196266ee8207f6a7156db7c759f80b65112b87fbf1960b448606b4ec", kill_on_drop: false }`
[INFO] [stdout] 9ff255c6196266ee8207f6a7156db7c759f80b65112b87fbf1960b448606b4ec
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 023b839fec9f9c93bb2b0ffeda2b0da07c337779ea56e2929cb906107c1c7257
[INFO] running `Command { std: "docker" "start" "-a" "023b839fec9f9c93bb2b0ffeda2b0da07c337779ea56e2929cb906107c1c7257", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling libc v0.2.133
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]     Checking regex-syntax v0.6.27
[INFO] [stderr]     Checking aho-corasick v0.7.19
[INFO] [stderr]     Checking matrixmultiply v0.3.2
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking regex v1.6.0
[INFO] [stderr]     Checking num-complex v0.4.2
[INFO] [stderr]     Checking env_logger v0.9.1
[INFO] [stderr]     Checking ndarray v0.15.4
[INFO] [stderr]     Checking orca-rs v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.62s
[INFO] running `Command { std: "docker" "inspect" "023b839fec9f9c93bb2b0ffeda2b0da07c337779ea56e2929cb906107c1c7257", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "023b839fec9f9c93bb2b0ffeda2b0da07c337779ea56e2929cb906107c1c7257", kill_on_drop: false }`
[INFO] [stdout] 023b839fec9f9c93bb2b0ffeda2b0da07c337779ea56e2929cb906107c1c7257