[INFO] fetching crate mnist 0.4.1... [INFO] checking mnist-0.4.1 against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579 [INFO] extracting crate mnist 0.4.1 into /workspace/builds/worker-7/source [INFO] validating manifest of crates.io crate mnist 0.4.1 on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking crates.io crate mnist 0.4.1 [INFO] finished tweaking crates.io crate mnist 0.4.1 [INFO] tweaked toml for crates.io crate mnist 0.4.1 written to /workspace/builds/worker-7/source/Cargo.toml [INFO] crate crates.io crate mnist 0.4.1 already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 4a6ccd2b994fec7a8d0f655ce5a81303547f43f26a0e3902c64a9eeedf052dc4 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "4a6ccd2b994fec7a8d0f655ce5a81303547f43f26a0e3902c64a9eeedf052dc4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "4a6ccd2b994fec7a8d0f655ce5a81303547f43f26a0e3902c64a9eeedf052dc4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4a6ccd2b994fec7a8d0f655ce5a81303547f43f26a0e3902c64a9eeedf052dc4", kill_on_drop: false }` [INFO] [stdout] 4a6ccd2b994fec7a8d0f655ce5a81303547f43f26a0e3902c64a9eeedf052dc4 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 181ba7bb250754aa0a620cac45598ad26d60910e1b9cd64f6734d8642310af10 [INFO] running `Command { std: "docker" "start" "-a" "181ba7bb250754aa0a620cac45598ad26d60910e1b9cd64f6734d8642310af10", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.74 [INFO] [stderr] Compiling unicode-xid v0.2.1 [INFO] [stderr] Compiling libloading v0.6.2 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Checking void v1.0.2 [INFO] [stderr] Checking smallvec v1.4.2 [INFO] [stderr] Checking once_cell v1.4.0 [INFO] [stderr] Checking scoped-tls v1.0.0 [INFO] [stderr] Compiling maybe-uninit v2.0.0 [INFO] [stderr] Compiling byteorder v1.3.4 [INFO] [stderr] Compiling matrixmultiply v0.1.15 [INFO] [stderr] Checking rawpointer v0.1.0 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Compiling num-traits v0.2.12 [INFO] [stderr] Compiling num-integer v0.1.43 [INFO] [stderr] Compiling xkbcommon-sys v0.7.4 [INFO] [stderr] Compiling num-iter v0.1.41 [INFO] [stderr] Compiling x11-dl v2.18.5 [INFO] [stderr] Compiling minifb v0.17.0 [INFO] [stderr] Compiling proc-macro2 v1.0.19 [INFO] [stderr] Compiling cast v0.2.3 [INFO] [stderr] Checking dlib v0.4.2 [INFO] [stderr] Checking wayland-sys v0.25.0 [INFO] [stderr] Compiling quote v1.0.7 [INFO] [stderr] Checking mnist v0.4.1 (/opt/rustwide/workdir) [INFO] [stderr] Compiling wayland-scanner v0.25.0 [INFO] [stdout] warning: unused return value of `Vec::::split_off` that must be used [INFO] [stdout] --> src/lib.rs:427:9 [INFO] [stdout] | [INFO] [stdout] 427 | tst_img.split_off(tst_len * ROWS * COLS); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: use `.truncate()` if you don't need the other half [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `Vec::::split_off` that must be used [INFO] [stdout] --> src/lib.rs:428:9 [INFO] [stdout] | [INFO] [stdout] 428 | tst_lbl.split_off(tst_len); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: use `.truncate()` if you don't need the other half [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking num v0.1.42 [INFO] [stderr] Checking rulinalg v0.4.2 [INFO] [stderr] Checking getrandom v0.1.14 [INFO] [stderr] Checking nix v0.17.0 [INFO] [stderr] Checking raw-window-handle v0.3.3 [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stderr] Checking xkb v0.2.1 [INFO] [stderr] Checking rand_chacha v0.2.2 [INFO] [stderr] Compiling wayland-client v0.25.0 [INFO] [stderr] Compiling wayland-protocols v0.25.0 [INFO] [stderr] Checking rand v0.7.3 [INFO] [stderr] Checking tempfile v3.1.0 [INFO] [stderr] Checking wayland-commons v0.25.0 [INFO] [stderr] Checking wayland-cursor v0.25.0 [INFO] [stdout] warning: unused return value of `Vec::::split_off` that must be used [INFO] [stdout] --> src/lib.rs:427:9 [INFO] [stdout] | [INFO] [stdout] 427 | tst_img.split_off(tst_len * ROWS * COLS); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: use `.truncate()` if you don't need the other half [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `Vec::::split_off` that must be used [INFO] [stdout] --> src/lib.rs:428:9 [INFO] [stdout] | [INFO] [stdout] 428 | tst_lbl.split_off(tst_len); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: use `.truncate()` if you don't need the other half [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 41.07s [INFO] running `Command { std: "docker" "inspect" "181ba7bb250754aa0a620cac45598ad26d60910e1b9cd64f6734d8642310af10", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "181ba7bb250754aa0a620cac45598ad26d60910e1b9cd64f6734d8642310af10", kill_on_drop: false }` [INFO] [stdout] 181ba7bb250754aa0a620cac45598ad26d60910e1b9cd64f6734d8642310af10