[INFO] cloning repository https://github.com/ahendriksen/n_longest_paths
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ahendriksen/n_longest_paths" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fahendriksen%2Fn_longest_paths", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fahendriksen%2Fn_longest_paths'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8ec12b8645db6616545b35ec0a757880a174d848
[INFO] testing ahendriksen/n_longest_paths against 1.59.0 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fahendriksen%2Fn_longest_paths" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ahendriksen/n_longest_paths on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ahendriksen/n_longest_paths
[INFO] finished tweaking git repo https://github.com/ahendriksen/n_longest_paths
[INFO] tweaked toml for git repo https://github.com/ahendriksen/n_longest_paths written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/ahendriksen/n_longest_paths already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] Blocking waiting for file lock on package cache
[INFO] [stderr] Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3ee468a7cd674cd0523e70f3e2fae2ba1286fd3b9742fbbbb51dc04265a5954d
[INFO] running `Command { std: "docker" "start" "-a" "3ee468a7cd674cd0523e70f3e2fae2ba1286fd3b9742fbbbb51dc04265a5954d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3ee468a7cd674cd0523e70f3e2fae2ba1286fd3b9742fbbbb51dc04265a5954d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ee468a7cd674cd0523e70f3e2fae2ba1286fd3b9742fbbbb51dc04265a5954d", kill_on_drop: false }`
[INFO] [stdout] 3ee468a7cd674cd0523e70f3e2fae2ba1286fd3b9742fbbbb51dc04265a5954d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 91ce80c22517dde34dab8e3c1bc11265497b8516c6eaf63c084f0eac7da7dce9
[INFO] running `Command { std: "docker" "start" "-a" "91ce80c22517dde34dab8e3c1bc11265497b8516c6eaf63c084f0eac7da7dce9", kill_on_drop: false }`
[INFO] [stderr] Compiling proc-macro2 v1.0.26
[INFO] [stderr] Compiling unicode-xid v0.2.1
[INFO] [stderr] Compiling syn v1.0.70
[INFO] [stderr] Compiling libc v0.2.93
[INFO] [stderr] Compiling autocfg v1.0.1
[INFO] [stderr] Compiling cfg-if v1.0.0
[INFO] [stderr] Compiling version_check v0.9.3
[INFO] [stderr] Compiling proc-macro-hack v0.5.19
[INFO] [stderr] Compiling scopeguard v1.1.0
[INFO] [stderr] Compiling unicode-xid v0.1.0
[INFO] [stderr] Compiling lazy_static v1.4.0
[INFO] [stderr] Compiling unindent v0.1.7
[INFO] [stderr] Compiling smallvec v1.6.1
[INFO] [stderr] Compiling bitflags v1.2.1
[INFO] [stderr] Compiling inventory v0.1.10
[INFO] [stderr] Compiling pyo3 v0.13.2
[INFO] [stderr] Compiling rawpointer v0.2.1
[INFO] [stderr] Compiling unicode-width v0.1.8
[INFO] [stderr] Compiling ndarray v0.14.0
[INFO] [stderr] Compiling unicode-segmentation v1.7.1
[INFO] [stderr] Compiling strsim v0.8.0
[INFO] [stderr] Compiling vec_map v0.8.2
[INFO] [stderr] Compiling ansi_term v0.11.0
[INFO] [stderr] Compiling byteorder v1.4.3
[INFO] [stderr] Compiling cfg-if v0.1.10
[INFO] [stderr] Compiling instant v0.1.9
[INFO] [stderr] Compiling lock_api v0.4.3
[INFO] [stderr] Compiling matrixmultiply v0.2.4
[INFO] [stderr] Compiling proc-macro2 v0.2.3
[INFO] [stderr] Compiling textwrap v0.11.0
[INFO] [stderr] Compiling heck v0.3.2
[INFO] [stderr] Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr] Compiling proc-macro-error v1.0.4
[INFO] [stderr] Compiling num-traits v0.2.14
[INFO] [stderr] Compiling crossbeam-utils v0.8.3
[INFO] [stderr] Compiling num-integer v0.1.44
[INFO] [stderr] Compiling quote v0.4.2
[INFO] [stderr] Compiling syn v0.12.15
[INFO] [stderr] Compiling quote v1.0.9
[INFO] [stderr] Compiling parking_lot_core v0.8.3
[INFO] [stderr] Compiling memchr v1.0.2
[INFO] [stderr] Compiling atty v0.2.14
[INFO] [stderr] Compiling time v0.1.44
[INFO] [stderr] Compiling nom v3.2.1
[INFO] [stderr] Compiling num-complex v0.3.1
[INFO] [stderr] Compiling parking_lot v0.11.1
[INFO] [stderr] Compiling clap v2.33.3
[INFO] [stderr] Compiling paste-impl v0.1.18
[INFO] [stderr] Compiling crossbeam-channel v0.5.1
[INFO] [stderr] Compiling npy v0.4.0
[INFO] [stderr] Compiling npy-derive v0.4.0
[INFO] [stderr] Compiling pbr v1.0.4
[INFO] [stderr] Compiling paste v0.1.18
[INFO] [stderr] Compiling pyo3-macros-backend v0.13.2
[INFO] [stderr] Compiling ctor v0.1.20
[INFO] [stderr] Compiling inventory-impl v0.1.10
[INFO] [stderr] Compiling ghost v0.1.2
[INFO] [stderr] Compiling indoc-impl v0.3.6
[INFO] [stderr] Compiling structopt-derive v0.4.14
[INFO] [stderr] Compiling pyo3-macros v0.13.2
[INFO] [stderr] Compiling indoc v0.3.6
[INFO] [stderr] Compiling structopt v0.3.21
[INFO] [stderr] Compiling numpy v0.13.1
[INFO] [stderr] Compiling n_longest_paths v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `node_dist`
[INFO] [stdout] --> src/fast_graph.rs:70:5
[INFO] [stdout] |
[INFO] [stdout] 70 | node_dist: Vec