[INFO] cloning repository https://github.com/mvlabat/rust_mnist_gradient_descent
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mvlabat/rust_mnist_gradient_descent" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmvlabat%2Frust_mnist_gradient_descent", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmvlabat%2Frust_mnist_gradient_descent'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b26648827dd1873edf9ec7002b4ad8773e5db0be
[INFO] checking mvlabat/rust_mnist_gradient_descent against try#a7a572ce3edd6d476191fbfe92c9c1986e009b34 for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmvlabat%2Frust_mnist_gradient_descent" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] [stderr] Updating files: 100% (9/9)
Updating files: 100% (9/9), done.
[INFO] validating manifest of git repo https://github.com/mvlabat/rust_mnist_gradient_descent on toolchain a7a572ce3edd6d476191fbfe92c9c1986e009b34
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mvlabat/rust_mnist_gradient_descent
[INFO] finished tweaking git repo https://github.com/mvlabat/rust_mnist_gradient_descent
[INFO] tweaked toml for git repo https://github.com/mvlabat/rust_mnist_gradient_descent written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/mvlabat/rust_mnist_gradient_descent already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded alga v0.5.2
[INFO] [stderr]   Downloaded num-complex v0.1.41
[INFO] [stderr]   Downloaded nalgebra v0.13.1
[INFO] [stderr]   Downloaded mnist v0.4.0
[INFO] [stderr]   Downloaded typenum v1.9.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d43c10084e7e00d5c9a3c9fa9afe4900ab55efe92dad179c1a217f9eb0b24e7c
[INFO] running `Command { std: "docker" "start" "-a" "d43c10084e7e00d5c9a3c9fa9afe4900ab55efe92dad179c1a217f9eb0b24e7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d43c10084e7e00d5c9a3c9fa9afe4900ab55efe92dad179c1a217f9eb0b24e7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d43c10084e7e00d5c9a3c9fa9afe4900ab55efe92dad179c1a217f9eb0b24e7c", kill_on_drop: false }`
[INFO] [stdout] d43c10084e7e00d5c9a3c9fa9afe4900ab55efe92dad179c1a217f9eb0b24e7c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 910635bc6913fa6e5e4a52741d547fb24c166d39a2e884e022c453def114d7a8
[INFO] running `Command { std: "docker" "start" "-a" "910635bc6913fa6e5e4a52741d547fb24c166d39a2e884e022c453def114d7a8", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] no edition found in manifest, probably 2015, skipping
[INFO] running `Command { std: "docker" "inspect" "910635bc6913fa6e5e4a52741d547fb24c166d39a2e884e022c453def114d7a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "910635bc6913fa6e5e4a52741d547fb24c166d39a2e884e022c453def114d7a8", kill_on_drop: false }`
[INFO] [stdout] 910635bc6913fa6e5e4a52741d547fb24c166d39a2e884e022c453def114d7a8