[INFO] cloning repository https://github.com/wolfandreh/mnist-digit-recognition-in-rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wolfandreh/mnist-digit-recognition-in-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwolfandreh%2Fmnist-digit-recognition-in-rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwolfandreh%2Fmnist-digit-recognition-in-rust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] fdbb50fd91df2be4d23620cfce14c1bcb7be6b2d [INFO] checking wolfandreh/mnist-digit-recognition-in-rust against master#506512391b1a75ae450d36c9420978402a91abcc for pr-125384 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwolfandreh%2Fmnist-digit-recognition-in-rust" "/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/wolfandreh/mnist-digit-recognition-in-rust 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/wolfandreh/mnist-digit-recognition-in-rust [INFO] finished tweaking git repo https://github.com/wolfandreh/mnist-digit-recognition-in-rust [INFO] tweaked toml for git repo https://github.com/wolfandreh/mnist-digit-recognition-in-rust written to /workspace/builds/worker-3-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/wolfandreh/mnist-digit-recognition-in-rust 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 savefile v0.8.1 [INFO] [stderr] Downloaded num-complex v0.1.43 [INFO] [stderr] Downloaded mindtree_utils v0.4.0 [INFO] [stderr] Downloaded bytemuck v1.5.1 [INFO] [stderr] Downloaded mnist v0.4.1 [INFO] [stderr] Downloaded ndarray v0.15.3 [INFO] [stderr] Downloaded savefile-derive v0.8.1 [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] cf592eb6ac661665aecd189aa6901b7265b761ad675059072750274cfb6eacc4 [INFO] running `Command { std: "docker" "start" "-a" "cf592eb6ac661665aecd189aa6901b7265b761ad675059072750274cfb6eacc4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "cf592eb6ac661665aecd189aa6901b7265b761ad675059072750274cfb6eacc4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "cf592eb6ac661665aecd189aa6901b7265b761ad675059072750274cfb6eacc4", kill_on_drop: false }` [INFO] [stdout] cf592eb6ac661665aecd189aa6901b7265b761ad675059072750274cfb6eacc4 [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] 99c44fc2b490ad65006328c64506264ba8e1dec5e41be4c7ccf5af0856565634 [INFO] running `Command { std: "docker" "start" "-a" "99c44fc2b490ad65006328c64506264ba8e1dec5e41be4c7ccf5af0856565634", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.95 [INFO] [stderr] Compiling num-integer v0.1.44 [INFO] [stderr] Checking rand_core v0.3.1 [INFO] [stderr] Checking crossbeam-deque v0.8.0 [INFO] [stderr] Checking rustc-serialize v0.3.24 [INFO] [stderr] Compiling bzip2-sys v0.1.11+1.0.8 [INFO] [stderr] Compiling ring v0.16.20 [INFO] [stderr] Compiling miniz_oxide v0.4.4 [INFO] [stderr] Compiling rand_pcg v0.1.2 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling indexmap v1.7.0 [INFO] [stderr] Checking weezl v0.1.5 [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 num-iter v0.1.42 [INFO] [stderr] Compiling savefile v0.8.1 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Checking untrusted v0.7.1 [INFO] [stderr] Checking hashbrown v0.11.2 [INFO] [stderr] Checking once_cell v1.8.0 [INFO] [stderr] Checking rawpointer v0.2.1 [INFO] [stderr] Checking matrixmultiply v0.3.1 [INFO] [stderr] Checking gif v0.11.2 [INFO] [stderr] Checking png v0.16.8 [INFO] [stderr] Checking rand v0.4.6 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Checking getrandom v0.1.16 [INFO] [stderr] Checking rayon-core v1.9.1 [INFO] [stderr] Checking parking_lot_core v0.7.2 [INFO] [stderr] Checking bzip2 v0.3.3 [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stderr] Checking rand_os v0.1.3 [INFO] [stderr] Checking parking_lot v0.10.2 [INFO] [stderr] Checking rand_chacha v0.2.2 [INFO] [stderr] Checking time v0.1.44 [INFO] [stderr] Compiling syn v0.14.9 [INFO] [stderr] Checking rand v0.3.23 [INFO] [stderr] Checking rand v0.7.3 [INFO] [stderr] Checking rayon v1.5.1 [INFO] [stderr] Checking num-rational v0.3.2 [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] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "99c44fc2b490ad65006328c64506264ba8e1dec5e41be4c7ccf5af0856565634", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "99c44fc2b490ad65006328c64506264ba8e1dec5e41be4c7ccf5af0856565634", kill_on_drop: false }` [INFO] [stdout] 99c44fc2b490ad65006328c64506264ba8e1dec5e41be4c7ccf5af0856565634 [INFO] checking wolfandreh/mnist-digit-recognition-in-rust against try#dae34b759e282c069aa28752564694effd121a63 for pr-125384 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwolfandreh%2Fmnist-digit-recognition-in-rust" "/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/wolfandreh/mnist-digit-recognition-in-rust 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/wolfandreh/mnist-digit-recognition-in-rust [INFO] finished tweaking git repo https://github.com/wolfandreh/mnist-digit-recognition-in-rust [INFO] tweaked toml for git repo https://github.com/wolfandreh/mnist-digit-recognition-in-rust written to /workspace/builds/worker-3-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/wolfandreh/mnist-digit-recognition-in-rust 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] 8b5cfdc10948d6fc07a52d69f00e8b7e1d1e3dd7292a7996df54cdfede7cbf3b [INFO] running `Command { std: "docker" "start" "-a" "8b5cfdc10948d6fc07a52d69f00e8b7e1d1e3dd7292a7996df54cdfede7cbf3b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "8b5cfdc10948d6fc07a52d69f00e8b7e1d1e3dd7292a7996df54cdfede7cbf3b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8b5cfdc10948d6fc07a52d69f00e8b7e1d1e3dd7292a7996df54cdfede7cbf3b", kill_on_drop: false }` [INFO] [stdout] 8b5cfdc10948d6fc07a52d69f00e8b7e1d1e3dd7292a7996df54cdfede7cbf3b [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] 39ec5c760afde49c03b305c3de17e3624599f88581c03da77aa1bdbd404aa60e [INFO] running `Command { std: "docker" "start" "-a" "39ec5c760afde49c03b305c3de17e3624599f88581c03da77aa1bdbd404aa60e", kill_on_drop: false }` [INFO] [stderr] Copying to /tmp/fixit [INFO] [stderr] skipping non-2021 edition `2018` [INFO] running `Command { std: "docker" "inspect" "39ec5c760afde49c03b305c3de17e3624599f88581c03da77aa1bdbd404aa60e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "39ec5c760afde49c03b305c3de17e3624599f88581c03da77aa1bdbd404aa60e", kill_on_drop: false }` [INFO] [stdout] 39ec5c760afde49c03b305c3de17e3624599f88581c03da77aa1bdbd404aa60e