[INFO] fetching crate cogent 0.5.5...
[INFO] checking cogent-0.5.5 against master#c724b67e1b474262917a5154d74e7072267593fe for pr-74315
[INFO] extracting crate cogent 0.5.5 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate cogent 0.5.5 on toolchain c724b67e1b474262917a5154d74e7072267593fe
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cogent 0.5.5
[INFO] finished tweaking crates.io crate cogent 0.5.5
[INFO] tweaked toml for crates.io crate cogent 0.5.5 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] add6792de61cd9ebd6b6c2a4c028b253ea81699705822f21b31d7e3fc7f1e29b
[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" "add6792de61cd9ebd6b6c2a4c028b253ea81699705822f21b31d7e3fc7f1e29b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "add6792de61cd9ebd6b6c2a4c028b253ea81699705822f21b31d7e3fc7f1e29b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "add6792de61cd9ebd6b6c2a4c028b253ea81699705822f21b31d7e3fc7f1e29b", kill_on_drop: false }`
[INFO] [stdout] add6792de61cd9ebd6b6c2a4c028b253ea81699705822f21b31d7e3fc7f1e29b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1ef5f21a02522b9abd2a840d5c6d071213e0f7f4d83caac97770b33bf0e53cbb
[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" "1ef5f21a02522b9abd2a840d5c6d071213e0f7f4d83caac97770b33bf0e53cbb", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.73
[INFO] [stderr]    Compiling syn v1.0.35
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]    Compiling serde v1.0.114
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde_json v1.0.56
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling itoa v0.4.6
[INFO] [stderr]     Checking arc-swap v0.4.7
[INFO] [stderr]     Checking smallvec v1.4.1
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]    Compiling ndarray v0.13.1
[INFO] [stderr]     Checking ppv-lite86 v0.2.8
[INFO] [stderr]     Checking half v1.6.0
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-iter v0.1.41
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]     Checking matrixmultiply v0.2.3
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking log v0.4.11
[INFO] [stderr]     Checking parking_lot_core v0.7.2
[INFO] [stderr]     Checking mio v0.7.0
[INFO] [stderr]     Checking signal-hook-registry v1.2.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking parking_lot v0.10.2
[INFO] [stderr]     Checking signal-hook v0.1.16
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking crossterm v0.17.7
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking num v0.2.1
[INFO] [stderr]    Compiling arrayfire v3.7.0
[INFO] [stderr]     Checking cogent v0.5.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `af_print`, `print_gen`, `set_col`
[INFO] [stdout]  --> src/neural_network.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     af_print, cols, constant, device_mem_info, diag_extract, div, eq, imax, print_gen, set_col,
[INFO] [stdout]   |     ^^^^^^^^                                                                ^^^^^^^^^  ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ArrayView2`
[INFO] [stdout]  --> src/trainer.rs:5:23
[INFO] [stdout]   |
[INFO] [stdout] 5 | use ndarray::{Array2, ArrayView2, ArrayViewMut2, Axis};
[INFO] [stdout]   |                       ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `af_print`, `print_gen`, `set_col`
[INFO] [stdout]  --> src/neural_network.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     af_print, cols, constant, device_mem_info, diag_extract, div, eq, imax, print_gen, set_col,
[INFO] [stdout]   |     ^^^^^^^^                                                                ^^^^^^^^^  ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ArrayView2`
[INFO] [stdout]  --> src/trainer.rs:5:23
[INFO] [stdout]   |
[INFO] [stdout] 5 | use ndarray::{Array2, ArrayView2, ArrayViewMut2, Axis};
[INFO] [stdout]   |                       ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'neural_network::NeuralNetwork::analyze': Not deprecated, just broken until ArrayFire update installer to match git (where issue has been reported and fixed).
[INFO] [stdout]     --> src/neural_network.rs:1141:37
[INFO] [stdout]      |
[INFO] [stdout] 1141 |         let (vector, matrix) = self.analyze(data, labels);
[INFO] [stdout]      |                                     ^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'neural_network::NeuralNetwork::analyze': Not deprecated, just broken until ArrayFire update installer to match git (where issue has been reported and fixed).
[INFO] [stdout]     --> src/neural_network.rs:1141:37
[INFO] [stdout]      |
[INFO] [stdout] 1141 |         let (vector, matrix) = self.analyze(data, labels);
[INFO] [stdout]      |                                     ^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input_size`
[INFO] [stdout]     --> src/neural_network.rs:1023:17
[INFO] [stdout]      |
[INFO] [stdout] 1023 |             let input_size = data.len_of(Axis(0));
[INFO] [stdout]      |                 ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_input_size`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input_size`
[INFO] [stdout]     --> src/neural_network.rs:1023:17
[INFO] [stdout]      |
[INFO] [stdout] 1023 |             let input_size = data.len_of(Axis(0));
[INFO] [stdout]      |                 ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_input_size`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 50.47s
[INFO] running `Command { std: "docker" "inspect" "1ef5f21a02522b9abd2a840d5c6d071213e0f7f4d83caac97770b33bf0e53cbb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ef5f21a02522b9abd2a840d5c6d071213e0f7f4d83caac97770b33bf0e53cbb", kill_on_drop: false }`
[INFO] [stdout] 1ef5f21a02522b9abd2a840d5c6d071213e0f7f4d83caac97770b33bf0e53cbb