[INFO] updating cached repository https://github.com/jackie-ell/rust-maze
[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] a6e0aa73d337b6f7f36b8fcdd8396913f0198843
[INFO] testing jackie-ell/rust-maze against 1.44.0 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjackie-ell%2Frust-maze" "/workspace/builds/worker-12/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jackie-ell/rust-maze on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/jackie-ell/rust-maze
[INFO] finished tweaking git repo https://github.com/jackie-ell/rust-maze
[INFO] tweaked toml for git repo https://github.com/jackie-ell/rust-maze written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/jackie-ell/rust-maze already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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=warn" "-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" "+1.44.0" "build" "--frozen"`
[INFO] [stdout] 4c0251b8684cc2bf8cad6feb130fad059cb458be2f198c88bf4a4fc7a694ccd2
[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" "4c0251b8684cc2bf8cad6feb130fad059cb458be2f198c88bf4a4fc7a694ccd2"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling rust-maze v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: field is never read: `n`
[INFO] [stderr]  --> src/node.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 |     n: bool,
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `e`
[INFO] [stderr]  --> src/node.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 |     e: bool,
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `s`
[INFO] [stderr]  --> src/node.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 |     s: bool,
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `w`
[INFO] [stderr]  --> src/node.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 |     w: bool
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.51s
[INFO] running `"docker" "inspect" "4c0251b8684cc2bf8cad6feb130fad059cb458be2f198c88bf4a4fc7a694ccd2"`
[INFO] running `"docker" "rm" "-f" "4c0251b8684cc2bf8cad6feb130fad059cb458be2f198c88bf4a4fc7a694ccd2"`
[INFO] [stdout] 4c0251b8684cc2bf8cad6feb130fad059cb458be2f198c88bf4a4fc7a694ccd2
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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=warn" "-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" "+1.44.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 5fe6932cb47bb4c780ee0a4a8cdc180c57772db281ad38b15d3a1543fe981a78
[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" "5fe6932cb47bb4c780ee0a4a8cdc180c57772db281ad38b15d3a1543fe981a78"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling rust-maze v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: field is never read: `n`
[INFO] [stderr]  --> src/node.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 |     n: bool,
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `e`
[INFO] [stderr]  --> src/node.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 |     e: bool,
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `s`
[INFO] [stderr]  --> src/node.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 |     s: bool,
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `w`
[INFO] [stderr]  --> src/node.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 |     w: bool
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.71s
[INFO] running `"docker" "inspect" "5fe6932cb47bb4c780ee0a4a8cdc180c57772db281ad38b15d3a1543fe981a78"`
[INFO] running `"docker" "rm" "-f" "5fe6932cb47bb4c780ee0a4a8cdc180c57772db281ad38b15d3a1543fe981a78"`
[INFO] [stdout] 5fe6932cb47bb4c780ee0a4a8cdc180c57772db281ad38b15d3a1543fe981a78
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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=warn" "-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" "+1.44.0" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 21ec31e1f6db82a996f3c296bc4deb9951ae34585c91d6b63ac3c7dabed5cb5d
[INFO] running `"docker" "start" "-a" "21ec31e1f6db82a996f3c296bc4deb9951ae34585c91d6b63ac3c7dabed5cb5d"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: field is never read: `n`
[INFO] [stdout] 
[INFO] [stderr]  --> src/node.rs:2:5
[INFO] [stdout] running 0 tests
[INFO] [stderr]   |
[INFO] [stdout] 
[INFO] [stderr] 2 |     n: bool,
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `e`
[INFO] [stderr]  --> src/node.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 |     e: bool,
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `s`
[INFO] [stderr]  --> src/node.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 |     s: bool,
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `w`
[INFO] [stderr]  --> src/node.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 |     w: bool
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rust_maze-fba607e17c9ae367
[INFO] running `"docker" "inspect" "21ec31e1f6db82a996f3c296bc4deb9951ae34585c91d6b63ac3c7dabed5cb5d"`
[INFO] running `"docker" "rm" "-f" "21ec31e1f6db82a996f3c296bc4deb9951ae34585c91d6b63ac3c7dabed5cb5d"`
[INFO] [stdout] 21ec31e1f6db82a996f3c296bc4deb9951ae34585c91d6b63ac3c7dabed5cb5d