[INFO] updating cached repository https://github.com/JosephSullivan256/Rust-Drawing
[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] babdf6abd88cb9ead90578fbebcebc0263eb0e2b
[INFO] checking JosephSullivan256/Rust-Drawing against master#7c59a81a5fcbaaca311f744cd7c68d99bfbb05d3 for pr-71873
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJosephSullivan256%2FRust-Drawing" "/workspace/builds/worker-13/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/JosephSullivan256/Rust-Drawing on toolchain 7c59a81a5fcbaaca311f744cd7c68d99bfbb05d3
[INFO] running `"/workspace/cargo-home/bin/cargo" "+7c59a81a5fcbaaca311f744cd7c68d99bfbb05d3" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/JosephSullivan256/Rust-Drawing
[INFO] finished tweaking git repo https://github.com/JosephSullivan256/Rust-Drawing
[INFO] tweaked toml for git repo https://github.com/JosephSullivan256/Rust-Drawing written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/JosephSullivan256/Rust-Drawing already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+7c59a81a5fcbaaca311f744cd7c68d99bfbb05d3" "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-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+7c59a81a5fcbaaca311f744cd7c68d99bfbb05d3" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] ceabca59485f8b6bc0cc792bdd7a4c90ce48a05b8a1db68ca7b7655eb74d48b2
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "ceabca59485f8b6bc0cc792bdd7a4c90ce48a05b8a1db68ca7b7655eb74d48b2"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]     Checking ppv-lite86 v0.2.6
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-iter v0.1.40
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]     Checking crc32fast v1.2.0
[INFO] [stderr]     Checking num_cpus v1.12.0
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking matrixmultiply v0.2.3
[INFO] [stderr]     Checking rayon-core v1.7.0
[INFO] [stderr]     Checking png v0.16.2
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rayon v1.3.0
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking alga v0.9.3
[INFO] [stderr]     Checking generic-array v0.12.3
[INFO] [stderr]     Checking jpeg-decoder v0.1.18
[INFO] [stderr]     Checking nalgebra v0.18.1
[INFO] [stderr]     Checking image v0.23.3
[INFO] [stderr]     Checking drawing v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variable `A` should have a snake case name
[INFO] [stderr]   --> src/geometry/util.rs:19:9
[INFO] [stderr]    |
[INFO] [stderr] 19 |     let A = Matrix2::from_columns(&[r.d,s.b-s.a]);
[INFO] [stderr]    |         ^ help: convert the identifier to snake case: `a`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: variable `A` should have a snake case name
[INFO] [stderr]   --> src/geometry/util.rs:19:9
[INFO] [stderr]    |
[INFO] [stderr] 19 |     let A = Matrix2::from_columns(&[r.d,s.b-s.a]);
[INFO] [stderr]    |         ^ help: convert the identifier to snake case: `a`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `tri`
[INFO] [stderr]   --> src/main.rs:16:9
[INFO] [stderr]    |
[INFO] [stderr] 16 |     let tri = Triangle::new(
[INFO] [stderr]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_tri`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `tri`
[INFO] [stderr]   --> src/main.rs:16:9
[INFO] [stderr]    |
[INFO] [stderr] 16 |     let tri = Triangle::new(
[INFO] [stderr]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_tri`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 52.73s
[INFO] running `"docker" "inspect" "ceabca59485f8b6bc0cc792bdd7a4c90ce48a05b8a1db68ca7b7655eb74d48b2"`
[INFO] running `"docker" "rm" "-f" "ceabca59485f8b6bc0cc792bdd7a4c90ce48a05b8a1db68ca7b7655eb74d48b2"`
[INFO] [stdout] ceabca59485f8b6bc0cc792bdd7a4c90ce48a05b8a1db68ca7b7655eb74d48b2