[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 master#506512391b1a75ae450d36c9420978402a91abcc for pr-125384 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmvlabat%2Frust_mnist_gradient_descent" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/mvlabat/rust_mnist_gradient_descent on toolchain 506512391b1a75ae450d36c9420978402a91abcc [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "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-3-tc1/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: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded rawpointer v0.1.0 [INFO] [stderr] Downloaded typenum v1.9.0 [INFO] [stderr] Downloaded num-complex v0.1.41 [INFO] [stderr] Downloaded matrixmultiply v0.1.14 [INFO] [stderr] Downloaded num-traits v0.1.42 [INFO] [stderr] Downloaded mnist v0.4.0 [INFO] [stderr] Downloaded rand v0.3.20 [INFO] [stderr] Downloaded alga v0.5.2 [INFO] [stderr] Downloaded generic-array v0.8.3 [INFO] [stderr] Downloaded futures v0.1.18 [INFO] [stderr] Downloaded approx v0.1.1 [INFO] [stderr] Downloaded libc v0.2.36 [INFO] [stderr] Downloaded nalgebra v0.13.1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:beeedbb442662e57d416641ecc3200b38e573c25b057896194468d05594dd835" "/opt/rustwide/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 7bbde7eff53da8ae4eaa5e4a90e6ce8d29c7c7e9c1c7c4eb5acc117e35e4f7ac [INFO] running `Command { std: "docker" "start" "-a" "7bbde7eff53da8ae4eaa5e4a90e6ce8d29c7c7e9c1c7c4eb5acc117e35e4f7ac", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "7bbde7eff53da8ae4eaa5e4a90e6ce8d29c7c7e9c1c7c4eb5acc117e35e4f7ac", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7bbde7eff53da8ae4eaa5e4a90e6ce8d29c7c7e9c1c7c4eb5acc117e35e4f7ac", kill_on_drop: false }` [INFO] [stdout] 7bbde7eff53da8ae4eaa5e4a90e6ce8d29c7c7e9c1c7c4eb5acc117e35e4f7ac [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=allow" "-e" "RUSTDOCFLAGS=--cap-lints=allow" "-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:beeedbb442662e57d416641ecc3200b38e573c25b057896194468d05594dd835" "/opt/rustwide/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 4b028161c0bdf782cf6d547374747fd61624185ffbc82f09e2fe603c92734bdd [INFO] running `Command { std: "docker" "start" "-a" "4b028161c0bdf782cf6d547374747fd61624185ffbc82f09e2fe603c92734bdd", kill_on_drop: false }` [INFO] [stderr] Compiling typenum v1.9.0 [INFO] [stderr] Checking libc v0.2.36 [INFO] [stderr] Checking rustc-serialize v0.3.24 [INFO] [stderr] Compiling matrixmultiply v0.1.14 [INFO] [stderr] Checking num-traits v0.1.42 [INFO] [stderr] Checking rawpointer v0.1.0 [INFO] [stderr] Checking approx v0.1.1 [INFO] [stderr] Checking futures v0.1.18 [INFO] [stderr] Checking mnist v0.4.0 [INFO] [stdout] error[E0310]: the parameter type `T` may not live long enough [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/rustc-serialize-0.3.24/src/serialize.rs:1155:5 [INFO] [stdout] | [INFO] [stdout] 1155 | fn decode(d: &mut D) -> Result, D::Error> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | the parameter type `T` must be valid for the static lifetime... [INFO] [stdout] | ...so that the type `T` will meet its required lifetime bounds... [INFO] [stdout] | [INFO] [stdout] note: ...that is required by this bound [INFO] [stdout] --> /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/alloc/src/borrow.rs:180:30 [INFO] [stdout] help: consider adding an explicit lifetime bound [INFO] [stdout] | [INFO] [stdout] 1151 | impl<'a, T: ?Sized + 'static> Decodable for Cow<'a, T> [INFO] [stdout] | +++++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking rand v0.3.20 [INFO] [stderr] Checking num_cpus v1.8.0 [INFO] [stderr] Checking generic-array v0.8.3 [INFO] [stderr] Checking futures-cpupool v0.1.8 [INFO] [stdout] error: aborting due to 1 previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0310`. [INFO] [stdout] [INFO] [stderr] error: could not compile `rustc-serialize` (lib) due to 2 previous errors [INFO] running `Command { std: "docker" "inspect" "4b028161c0bdf782cf6d547374747fd61624185ffbc82f09e2fe603c92734bdd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4b028161c0bdf782cf6d547374747fd61624185ffbc82f09e2fe603c92734bdd", kill_on_drop: false }` [INFO] [stdout] 4b028161c0bdf782cf6d547374747fd61624185ffbc82f09e2fe603c92734bdd [INFO] checking mvlabat/rust_mnist_gradient_descent against try#dae34b759e282c069aa28752564694effd121a63 for pr-125384 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmvlabat%2Frust_mnist_gradient_descent" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/mvlabat/rust_mnist_gradient_descent on toolchain dae34b759e282c069aa28752564694effd121a63 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dae34b759e282c069aa28752564694effd121a63" "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-3-tc2/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: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dae34b759e282c069aa28752564694effd121a63" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:beeedbb442662e57d416641ecc3200b38e573c25b057896194468d05594dd835" "/opt/rustwide/cargo-home/bin/cargo" "+dae34b759e282c069aa28752564694effd121a63" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] e2d9a7d7e6720eea90043c33b57c3362d654d55ed98fc78d7b921762e43576cf [INFO] running `Command { std: "docker" "start" "-a" "e2d9a7d7e6720eea90043c33b57c3362d654d55ed98fc78d7b921762e43576cf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e2d9a7d7e6720eea90043c33b57c3362d654d55ed98fc78d7b921762e43576cf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e2d9a7d7e6720eea90043c33b57c3362d654d55ed98fc78d7b921762e43576cf", kill_on_drop: false }` [INFO] [stdout] e2d9a7d7e6720eea90043c33b57c3362d654d55ed98fc78d7b921762e43576cf [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=allow" "-e" "RUSTDOCFLAGS=--cap-lints=allow" "-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:beeedbb442662e57d416641ecc3200b38e573c25b057896194468d05594dd835" "/opt/rustwide/cargo-home/bin/cargo" "+dae34b759e282c069aa28752564694effd121a63" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 9faa7f4cab4fb327510d5cbdb4aaace591e9f9914f0145d83ebba07d575613c7 [INFO] running `Command { std: "docker" "start" "-a" "9faa7f4cab4fb327510d5cbdb4aaace591e9f9914f0145d83ebba07d575613c7", 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" "9faa7f4cab4fb327510d5cbdb4aaace591e9f9914f0145d83ebba07d575613c7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9faa7f4cab4fb327510d5cbdb4aaace591e9f9914f0145d83ebba07d575613c7", kill_on_drop: false }` [INFO] [stdout] 9faa7f4cab4fb327510d5cbdb4aaace591e9f9914f0145d83ebba07d575613c7