[INFO] updating cached repository https://github.com/tlowry/rust-ai-samples
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 20758bf1e0643c6ebe1d764c7f27eebb8f7d0ef4
[INFO] checking tlowry/rust-ai-samples against try#1a608893c03d7722effeb0058e82770bd36b4b3c for pr-66504-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftlowry%2Frust-ai-samples" "/workspace/builds/worker-3/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tlowry/rust-ai-samples on toolchain 1a608893c03d7722effeb0058e82770bd36b4b3c
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1a608893c03d7722effeb0058e82770bd36b4b3c" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/tlowry/rust-ai-samples
[INFO] finished tweaking git repo https://github.com/tlowry/rust-ai-samples
[INFO] tweaked toml for git repo https://github.com/tlowry/rust-ai-samples written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/tlowry/rust-ai-samples already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1a608893c03d7722effeb0058e82770bd36b4b3c" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: the lock file /workspace/builds/worker-3/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1a608893c03d7722effeb0058e82770bd36b4b3c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1a608893c03d7722effeb0058e82770bd36b4b3c" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+1a608893c03d7722effeb0058e82770bd36b4b3c" "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] 39d8c000c7b3f026920131a2248788857f6b5efc7f5da6a6bf46b7d6251085eb
[INFO] running `"docker" "start" "-a" "39d8c000c7b3f026920131a2248788857f6b5efc7f5da6a6bf46b7d6251085eb"`
[INFO] [stderr]     Checking itertools v0.7.11
[INFO] [stderr]     Checking pistoncore-input v0.14.0
[INFO] [stderr]     Checking piston2d-graphics v0.17.3
[INFO] [stderr]     Checking special v0.8.1
[INFO] [stderr]     Checking gfx_core v0.4.0
[INFO] [stderr]     Checking image v0.10.4
[INFO] [stderr]     Checking probability v0.16.0
[INFO] [stderr]     Checking ndarray v0.12.1
[INFO] [stderr]     Checking pistoncore-window v0.22.1
[INFO] [stderr]     Checking pistoncore-event_loop v0.25.1
[INFO] [stderr]     Checking pistoncore-glutin_window v0.29.0
[INFO] [stderr]     Checking piston v0.25.1
[INFO] [stderr]     Checking gfx v0.12.2
[INFO] [stderr]     Checking gfx_device_gl v0.11.2
[INFO] [stderr]     Checking piston-gfx_texture v0.17.0
[INFO] [stderr]     Checking piston2d-gfx_graphics v0.31.2
[INFO] [stderr]     Checking piston_window v0.52.0
[INFO] [stderr]     Checking dataplotlib v0.1.3
[INFO] [stderr]     Checking rust-ai-samples v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `probability::distribution::Gaussian`
[INFO] [stderr]  --> src/main.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use probability::distribution::Gaussian;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:40:27
[INFO] [stderr]    |
[INFO] [stderr] 40 | fn draw(x: &Vec<f64>, f: &Fn(f64) -> f64) {
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f64) -> f64`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `probability::distribution::Gaussian`
[INFO] [stderr]  --> src/main.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use probability::distribution::Gaussian;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:40:27
[INFO] [stderr]    |
[INFO] [stderr] 40 | fn draw(x: &Vec<f64>, f: &Fn(f64) -> f64) {
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f64) -> f64`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `tanh`
[INFO] [stderr]   --> src/main.rs:35:4
[INFO] [stderr]    |
[INFO] [stderr] 35 | fn tanh(input: f64) -> f64 {
[INFO] [stderr]    |    ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `tanh`
[INFO] [stderr]   --> src/main.rs:35:4
[INFO] [stderr]    |
[INFO] [stderr] 35 | fn tanh(input: f64) -> f64 {
[INFO] [stderr]    |    ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 38.06s
[INFO] running `"docker" "inspect" "39d8c000c7b3f026920131a2248788857f6b5efc7f5da6a6bf46b7d6251085eb"`
[INFO] running `"docker" "rm" "-f" "39d8c000c7b3f026920131a2248788857f6b5efc7f5da6a6bf46b7d6251085eb"`
[INFO] [stdout] 39d8c000c7b3f026920131a2248788857f6b5efc7f5da6a6bf46b7d6251085eb