[INFO] fetching crate mnist_read 1.0.1...
[INFO] crate mnist_read 1.0.1 is already in cache
[INFO] crate mnist_read 1.0.1 is already in cache
[INFO] crate mnist_read 1.0.1 is already in cache
[INFO] crate mnist_read 1.0.1 is already in cache
[INFO] crate mnist_read 1.0.1 is already in cache
[INFO] crate mnist_read 1.0.1 is already in cache
[INFO] crate mnist_read 1.0.1 is already in cache
[INFO] crate mnist_read 1.0.1 is already in cache
[INFO] crate mnist_read 1.0.1 is already in cache
[INFO] crate mnist_read 1.0.1 is already in cache
[INFO] crate mnist_read 1.0.1 is already in cache
[INFO] crate mnist_read 1.0.1 is already in cache
[INFO] crate mnist_read 1.0.1 is already in cache
[INFO] crate mnist_read 1.0.1 is already in cache
[INFO] checking mnist_read-1.0.1 against master#7308c22c6a8d77e82187e290e1f7459870e48d12 for pr-99447
[INFO] extracting crate mnist_read 1.0.1 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate mnist_read 1.0.1 on toolchain 7308c22c6a8d77e82187e290e1f7459870e48d12
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7308c22c6a8d77e82187e290e1f7459870e48d12" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mnist_read 1.0.1
[INFO] finished tweaking crates.io crate mnist_read 1.0.1
[INFO] tweaked toml for crates.io crate mnist_read 1.0.1 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7308c22c6a8d77e82187e290e1f7459870e48d12" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7308c22c6a8d77e82187e290e1f7459870e48d12" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded num-complex v0.2.4
[INFO] [stderr]   Downloaded matrixmultiply v0.2.4
[INFO] [stderr]   Downloaded ndarray v0.13.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:824c28ce115f6b999260af6986f3384c158e782489540e41c0b698ca1d9fd927" "/opt/rustwide/cargo-home/bin/cargo" "+7308c22c6a8d77e82187e290e1f7459870e48d12" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8590a4fb3cd510830e007af9c27891715a8742faef437542a807433e6a3e5735
[INFO] running `Command { std: "docker" "start" "-a" "8590a4fb3cd510830e007af9c27891715a8742faef437542a807433e6a3e5735", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8590a4fb3cd510830e007af9c27891715a8742faef437542a807433e6a3e5735", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8590a4fb3cd510830e007af9c27891715a8742faef437542a807433e6a3e5735", kill_on_drop: false }`
[INFO] [stdout] 8590a4fb3cd510830e007af9c27891715a8742faef437542a807433e6a3e5735
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:824c28ce115f6b999260af6986f3384c158e782489540e41c0b698ca1d9fd927" "/opt/rustwide/cargo-home/bin/cargo" "+7308c22c6a8d77e82187e290e1f7459870e48d12" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6fce8d3a73a58442ee201564cedc8f659e6ee2722c756fceb718240f9fbae6c2
[INFO] running `Command { std: "docker" "start" "-a" "6fce8d3a73a58442ee201564cedc8f659e6ee2722c756fceb718240f9fbae6c2", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling ndarray v0.13.1
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]     Checking matrixmultiply v0.2.4
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]     Checking mnist_read v1.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.53s
[INFO] running `Command { std: "docker" "inspect" "6fce8d3a73a58442ee201564cedc8f659e6ee2722c756fceb718240f9fbae6c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6fce8d3a73a58442ee201564cedc8f659e6ee2722c756fceb718240f9fbae6c2", kill_on_drop: false }`
[INFO] [stdout] 6fce8d3a73a58442ee201564cedc8f659e6ee2722c756fceb718240f9fbae6c2