[INFO] cloning repository https://github.com/mt-rainier/mnist_plain_rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mt-rainier/mnist_plain_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmt-rainier%2Fmnist_plain_rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmt-rainier%2Fmnist_plain_rust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 90f6b4f50268ef4a6aadf9d21cc4a54b28c0d9bd [INFO] testing mt-rainier/mnist_plain_rust against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_in_2025-retry-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmt-rainier%2Fmnist_plain_rust" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/mt-rainier/mnist_plain_rust [INFO] finished tweaking git repo https://github.com/mt-rainier/mnist_plain_rust [INFO] tweaked toml for git repo https://github.com/mt-rainier/mnist_plain_rust written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/mt-rainier/mnist_plain_rust on toolchain 8de4c7234dd9b97c9d76b58671343fdbbc9a433e [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/mt-rainier/mnist_plain_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" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] b82fc452edcb9ba35a5065bc9e7b4d7a1d4bc8a8a8efb0f96ada790b9223e1ac [INFO] running `Command { std: "docker" "start" "-a" "b82fc452edcb9ba35a5065bc9e7b4d7a1d4bc8a8a8efb0f96ada790b9223e1ac", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "b82fc452edcb9ba35a5065bc9e7b4d7a1d4bc8a8a8efb0f96ada790b9223e1ac", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b82fc452edcb9ba35a5065bc9e7b4d7a1d4bc8a8a8efb0f96ada790b9223e1ac", kill_on_drop: false }` [INFO] [stdout] b82fc452edcb9ba35a5065bc9e7b4d7a1d4bc8a8a8efb0f96ada790b9223e1ac [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "build" "--frozen" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }` [INFO] [stdout] 031ae25cfe6fd3d19862869671f4e0a1de48eab907128b4b7989c25dc92b51e6 [INFO] running `Command { std: "docker" "start" "-a" "031ae25cfe6fd3d19862869671f4e0a1de48eab907128b4b7989c25dc92b51e6", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.88 [INFO] [stderr] Compiling getrandom v0.2.2 [INFO] [stderr] Compiling cfg-if v1.0.0 [INFO] [stderr] Compiling ppv-lite86 v0.2.10 [INFO] [stderr] Compiling byteorder v1.4.2 [INFO] [stderr] Compiling rand_core v0.6.2 [INFO] [stderr] Compiling rand_chacha v0.3.0 [INFO] [stderr] Compiling rand v0.8.3 [INFO] [stderr] Compiling mnist_plain_rust v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/main.rs:168:14 [INFO] [stdout] | [INFO] [stdout] 168 | dataset: &MnistDataset, [INFO] [stdout] | ^^^^^^^^^^^^^ this lifetime flows to the output [INFO] [stdout] ... [INFO] [stdout] 171 | ) -> Result { [INFO] [stdout] | ----------------- ---- the lifetimes get resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | the lifetimes get resolved as `'_` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 171 | ) -> Result, &str> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.56s [INFO] running `Command { std: "docker" "inspect" "031ae25cfe6fd3d19862869671f4e0a1de48eab907128b4b7989c25dc92b51e6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "031ae25cfe6fd3d19862869671f4e0a1de48eab907128b4b7989c25dc92b51e6", kill_on_drop: false }` [INFO] [stdout] 031ae25cfe6fd3d19862869671f4e0a1de48eab907128b4b7989c25dc92b51e6 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--no-run" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }` [INFO] [stdout] 09bbd573568204856a5fd9e1fb8dcd3d9b903dcb33a2a80d60c4b9b2d83ecfc2 [INFO] running `Command { std: "docker" "start" "-a" "09bbd573568204856a5fd9e1fb8dcd3d9b903dcb33a2a80d60c4b9b2d83ecfc2", kill_on_drop: false }` [INFO] [stderr] Compiling mnist_plain_rust v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/main.rs:168:14 [INFO] [stdout] | [INFO] [stdout] 168 | dataset: &MnistDataset, [INFO] [stdout] | ^^^^^^^^^^^^^ this lifetime flows to the output [INFO] [stdout] ... [INFO] [stdout] 171 | ) -> Result { [INFO] [stdout] | ----------------- ---- the lifetimes get resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | the lifetimes get resolved as `'_` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 171 | ) -> Result, &str> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.45s [INFO] running `Command { std: "docker" "inspect" "09bbd573568204856a5fd9e1fb8dcd3d9b903dcb33a2a80d60c4b9b2d83ecfc2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "09bbd573568204856a5fd9e1fb8dcd3d9b903dcb33a2a80d60c4b9b2d83ecfc2", kill_on_drop: false }` [INFO] [stdout] 09bbd573568204856a5fd9e1fb8dcd3d9b903dcb33a2a80d60c4b9b2d83ecfc2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }` [INFO] [stdout] f314170618664588dd1431ab57f36142e308c5187efd5050c78906cb83cc5cea [INFO] running `Command { std: "docker" "start" "-a" "f314170618664588dd1431ab57f36142e308c5187efd5050c78906cb83cc5cea", kill_on_drop: false }` [INFO] [stderr] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] [INFO] [stderr] --> src/main.rs:168:14 [INFO] [stdout] running 0 tests [INFO] [stderr] | [INFO] [stdout] [INFO] [stderr] 168 | dataset: &MnistDataset, [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stderr] | ^^^^^^^^^^^^^ this lifetime flows to the output [INFO] [stdout] [INFO] [stderr] ... [INFO] [stderr] 171 | ) -> Result { [INFO] [stderr] | ----------------- ---- the lifetimes get resolved as `'_` [INFO] [stderr] | | [INFO] [stderr] | the lifetimes get resolved as `'_` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stderr] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stderr] | [INFO] [stderr] 171 | ) -> Result, &str> { [INFO] [stderr] | ++++ [INFO] [stderr] [INFO] [stderr] warning: `mnist_plain_rust` (bin "mnist_plain_rust" test) generated 1 warning (run `cargo fix --bin "mnist_plain_rust" --tests` to apply 1 suggestion) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/mnist_plain_rust-546a3ecfc4ef1451) [INFO] running `Command { std: "docker" "inspect" "f314170618664588dd1431ab57f36142e308c5187efd5050c78906cb83cc5cea", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f314170618664588dd1431ab57f36142e308c5187efd5050c78906cb83cc5cea", kill_on_drop: false }` [INFO] [stdout] f314170618664588dd1431ab57f36142e308c5187efd5050c78906cb83cc5cea