[INFO] fetching crate cogent 0.1.1...
[INFO] checking cogent-0.1.1 against try#98d5ea1855f1028095b37c493ba31093c8519d68 for pr-69548
[INFO] extracting crate cogent 0.1.1 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate cogent 0.1.1 on toolchain 98d5ea1855f1028095b37c493ba31093c8519d68
[INFO] running `"/workspace/cargo-home/bin/cargo" "+98d5ea1855f1028095b37c493ba31093c8519d68" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate cogent 0.1.1
[INFO] finished tweaking crates.io crate cogent 0.1.1
[INFO] tweaked toml for crates.io crate cogent 0.1.1 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+98d5ea1855f1028095b37c493ba31093c8519d68" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+98d5ea1855f1028095b37c493ba31093c8519d68" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ndarray_einsum_beta v0.5.0
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "/opt/rustwide/cargo-home/bin/cargo" "+98d5ea1855f1028095b37c493ba31093c8519d68" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c4ec8b205823c1dc35f35be9e35c455f0c956bbed60e0d99cdb323732deb0df2
[INFO] running `"docker" "start" "-a" "c4ec8b205823c1dc35f35be9e35c455f0c956bbed60e0d99cdb323732deb0df2"`
[INFO] [stderr]    Compiling ndarray v0.13.0
[INFO] [stderr]     Checking signal-hook v0.1.13
[INFO] [stderr]     Checking rand_distr v0.2.2
[INFO] [stderr]     Checking crossterm v0.14.2
[INFO] [stderr]     Checking ndarray-rand v0.11.0
[INFO] [stderr]     Checking ndarray_einsum_beta v0.5.0
[INFO] [stderr]     Checking cogent v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: function is never used: `quadratic_cost_derivative`
[INFO] [stderr]    --> src/lib.rs:884:16
[INFO] [stderr]     |
[INFO] [stderr] 884 |             fn quadratic_cost_derivative(outputs: &Array2<f32>, targets: &Array2<f32>) -> Array2<f32> {
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `linear`
[INFO] [stderr]    --> src/lib.rs:931:16
[INFO] [stderr]     |
[INFO] [stderr] 931 |             fn linear(outputs: &Array2<f32>, targets: &Array2<f32>) -> Array1<f32> {
[INFO] [stderr]     |                ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `quadratic`
[INFO] [stderr]    --> src/lib.rs:935:16
[INFO] [stderr]     |
[INFO] [stderr] 935 |             fn quadratic(outputs: &Array2<f32>, targets: &Array2<f32>) -> f32 {
[INFO] [stderr]     |                ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `quadratic_cost_derivative`
[INFO] [stderr]    --> src/lib.rs:884:16
[INFO] [stderr]     |
[INFO] [stderr] 884 |             fn quadratic_cost_derivative(outputs: &Array2<f32>, targets: &Array2<f32>) -> Array2<f32> {
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `linear`
[INFO] [stderr]    --> src/lib.rs:931:16
[INFO] [stderr]     |
[INFO] [stderr] 931 |             fn linear(outputs: &Array2<f32>, targets: &Array2<f32>) -> Array1<f32> {
[INFO] [stderr]     |                ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `quadratic`
[INFO] [stderr]    --> src/lib.rs:935:16
[INFO] [stderr]     |
[INFO] [stderr] 935 |             fn quadratic(outputs: &Array2<f32>, targets: &Array2<f32>) -> f32 {
[INFO] [stderr]     |                ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.96s
[INFO] running `"docker" "inspect" "c4ec8b205823c1dc35f35be9e35c455f0c956bbed60e0d99cdb323732deb0df2"`
[INFO] running `"docker" "rm" "-f" "c4ec8b205823c1dc35f35be9e35c455f0c956bbed60e0d99cdb323732deb0df2"`
[INFO] [stdout] c4ec8b205823c1dc35f35be9e35c455f0c956bbed60e0d99cdb323732deb0df2