[INFO] cloning repository https://github.com/FelixHaller/betweenness
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/FelixHaller/betweenness" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFelixHaller%2Fbetweenness", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFelixHaller%2Fbetweenness'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e3af4d2a93416392435922cda1d99f42fcb6250a
[INFO] checking FelixHaller/betweenness against master#936f2600b6c903b04387f74ed5cbce88bb06d243 for pr-91141
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFelixHaller%2Fbetweenness" "/workspace/builds/worker-54/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-54/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/FelixHaller/betweenness on toolchain 936f2600b6c903b04387f74ed5cbce88bb06d243
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/FelixHaller/betweenness
[INFO] finished tweaking git repo https://github.com/FelixHaller/betweenness
[INFO] tweaked toml for git repo https://github.com/FelixHaller/betweenness written to /workspace/builds/worker-54/source/Cargo.toml
[INFO] crate git repo https://github.com/FelixHaller/betweenness already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded random_choice v0.3.2
[INFO] [stderr]   Downloaded roulette v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c11dc3ccb64cae4f22f8ff81a6309bfb607dd55ac05e2343f2b5f89dd224adf7
[INFO] running `Command { std: "docker" "start" "-a" "c11dc3ccb64cae4f22f8ff81a6309bfb607dd55ac05e2343f2b5f89dd224adf7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c11dc3ccb64cae4f22f8ff81a6309bfb607dd55ac05e2343f2b5f89dd224adf7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c11dc3ccb64cae4f22f8ff81a6309bfb607dd55ac05e2343f2b5f89dd224adf7", kill_on_drop: false }`
[INFO] [stdout] c11dc3ccb64cae4f22f8ff81a6309bfb607dd55ac05e2343f2b5f89dd224adf7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/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=forbid" "-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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 71105a5ebfc7ddb72f4852c847ee3664e6bbebc88ffb3c6223fc59a74db288df
[INFO] running `Command { std: "docker" "start" "-a" "71105a5ebfc7ddb72f4852c847ee3664e6bbebc88ffb3c6223fc59a74db288df", 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] [stderr]     Checking libc v0.2.36
[INFO] [stderr]     Checking unicode-width v0.1.4
[INFO] [stderr]     Checking bitflags v1.0.1
[INFO] [stderr]     Checking vec_map v0.8.0
[INFO] [stderr]     Checking ansi_term v0.10.2
[INFO] [stderr]     Checking textwrap v0.9.0
[INFO] [stderr]     Checking rand v0.4.2
[INFO] [stderr]     Checking atty v0.2.6
[INFO] [stderr]     Checking clap v2.29.4
[INFO] [stderr]     Checking rand v0.3.22
[INFO] [stderr]     Checking roulette v0.1.0
[INFO] [stderr]     Checking random_choice v0.3.2
[INFO] [stderr]     Checking betweenness v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/main.rs:301:40
[INFO] [stdout]     |
[INFO] [stdout] 301 | ...                   why.description()),
[INFO] [stdout]     |                           ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/main.rs:301:40
[INFO] [stdout]     |
[INFO] [stdout] 301 | ...                   why.description()),
[INFO] [stdout]     |                           ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `stoch_univ_samp`
[INFO] [stdout]    --> src/main.rs:566:4
[INFO] [stdout]     |
[INFO] [stdout] 566 | fn stoch_univ_samp(parent_population: &Vec<Individual>, to_select: usize) -> Vec<Individual> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `stoch_univ_samp`
[INFO] [stdout]    --> src/main.rs:566:4
[INFO] [stdout]     |
[INFO] [stdout] 566 | fn stoch_univ_samp(parent_population: &Vec<Individual>, to_select: usize) -> Vec<Individual> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 36.72s
[INFO] running `Command { std: "docker" "inspect" "71105a5ebfc7ddb72f4852c847ee3664e6bbebc88ffb3c6223fc59a74db288df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71105a5ebfc7ddb72f4852c847ee3664e6bbebc88ffb3c6223fc59a74db288df", kill_on_drop: false }`
[INFO] [stdout] 71105a5ebfc7ddb72f4852c847ee3664e6bbebc88ffb3c6223fc59a74db288df