[INFO] updating cached repository https://github.com/CrazedProgrammer/AICourse
[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] [stderr] From https://github.com/CrazedProgrammer/AICourse
[INFO] [stderr]    a29108d..95561a2  master     -> master
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 95561a2cce1130f9fbc17c0153c20e14b84ab519
[INFO] checking CrazedProgrammer/AICourse against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCrazedProgrammer%2FAICourse" "/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/CrazedProgrammer/AICourse on toolchain 45d050cde277b22a755847338f2acc2c7b834141
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/CrazedProgrammer/AICourse
[INFO] finished tweaking git repo https://github.com/CrazedProgrammer/AICourse
[INFO] tweaked toml for git repo https://github.com/CrazedProgrammer/AICourse written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/CrazedProgrammer/AICourse already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[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" "+45d050cde277b22a755847338f2acc2c7b834141" "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] fe90d4ff80b71ef13fe9514edb976fa29cecc346bf867965b6b0960d89b5977e
[INFO] running `"docker" "start" "-a" "fe90d4ff80b71ef13fe9514edb976fa29cecc346bf867965b6b0960d89b5977e"`
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.6
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand_pcg v0.2.1
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking aicourse v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `Matrix`
[INFO] [stderr]  --> src/bin/main.rs:1:24
[INFO] [stderr]   |
[INFO] [stderr] 1 | use aicourse::matrix::{Matrix, load_idx};
[INFO] [stderr]   |                        ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io`
[INFO] [stderr]  --> src/bin/main.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::io;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Matrix`
[INFO] [stderr]  --> src/bin/main.rs:1:24
[INFO] [stderr]   |
[INFO] [stderr] 1 | use aicourse::matrix::{Matrix, load_idx};
[INFO] [stderr]   |                        ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io`
[INFO] [stderr]  --> src/bin/main.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::io;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.08s
[INFO] running `"docker" "inspect" "fe90d4ff80b71ef13fe9514edb976fa29cecc346bf867965b6b0960d89b5977e"`
[INFO] running `"docker" "rm" "-f" "fe90d4ff80b71ef13fe9514edb976fa29cecc346bf867965b6b0960d89b5977e"`
[INFO] [stdout] fe90d4ff80b71ef13fe9514edb976fa29cecc346bf867965b6b0960d89b5977e