[INFO] cloning repository https://github.com/marcbreitung/problem-map-generator-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/marcbreitung/problem-map-generator-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmarcbreitung%2Fproblem-map-generator-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmarcbreitung%2Fproblem-map-generator-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e354237c833a9b9f15d0a2f9c757a86d6bcd8c99
[INFO] testing marcbreitung/problem-map-generator-rust against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmarcbreitung%2Fproblem-map-generator-rust" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/marcbreitung/problem-map-generator-rust on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/marcbreitung/problem-map-generator-rust
[INFO] finished tweaking git repo https://github.com/marcbreitung/problem-map-generator-rust
[INFO] tweaked toml for git repo https://github.com/marcbreitung/problem-map-generator-rust written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/marcbreitung/problem-map-generator-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_derive v1.0.32
[INFO] [stderr]   Downloaded serde v1.0.32
[INFO] [stderr]   Downloaded serde_derive_internals v0.20.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 71a50c8d222a17ccd09055bb3a644a58d31e58d5dbf0c25b3cb9afb177c84cb6
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "71a50c8d222a17ccd09055bb3a644a58d31e58d5dbf0c25b3cb9afb177c84cb6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "71a50c8d222a17ccd09055bb3a644a58d31e58d5dbf0c25b3cb9afb177c84cb6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71a50c8d222a17ccd09055bb3a644a58d31e58d5dbf0c25b3cb9afb177c84cb6", kill_on_drop: false }`
[INFO] [stdout] 71a50c8d222a17ccd09055bb3a644a58d31e58d5dbf0c25b3cb9afb177c84cb6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e7df1a548d6bb725bf0b6fd36a6e78cc55f4953757f5c3a230301ecb60999c80
[INFO] running `Command { std: "docker" "start" "-a" "e7df1a548d6bb725bf0b6fd36a6e78cc55f4953757f5c3a230301ecb60999c80", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.39
[INFO] [stderr]    Compiling itoa v0.3.4
[INFO] [stderr]    Compiling dtoa v0.4.2
[INFO] [stderr]    Compiling serde v1.0.32
[INFO] [stderr]    Compiling num-traits v0.2.1
[INFO] [stderr]    Compiling proc-macro2 v0.2.3
[INFO] [stderr]    Compiling quote v0.4.2
[INFO] [stderr]    Compiling syn v0.12.14
[INFO] [stderr]    Compiling rand v0.4.2
[INFO] [stderr]    Compiling serde_derive_internals v0.20.1
[INFO] [stderr]    Compiling serde_derive v1.0.32
[INFO] [stderr]    Compiling serde_json v1.0.11
[INFO] [stderr]    Compiling problem_map_generator v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:46:13
[INFO] [stdout]    |
[INFO] [stdout] 46 |         let mut neighbours = get_neighbours(&leaves, &leave);
[INFO] [stdout]    |             ----^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 22.44s
[INFO] running `Command { std: "docker" "inspect" "e7df1a548d6bb725bf0b6fd36a6e78cc55f4953757f5c3a230301ecb60999c80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7df1a548d6bb725bf0b6fd36a6e78cc55f4953757f5c3a230301ecb60999c80", kill_on_drop: false }`
[INFO] [stdout] e7df1a548d6bb725bf0b6fd36a6e78cc55f4953757f5c3a230301ecb60999c80
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 02f9cc4a15fa04e302087649a3bcb98defde566a17f36db383a24fb42c69dee6
[INFO] running `Command { std: "docker" "start" "-a" "02f9cc4a15fa04e302087649a3bcb98defde566a17f36db383a24fb42c69dee6", kill_on_drop: false }`
[INFO] [stderr]    Compiling problem_map_generator v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:46:13
[INFO] [stdout]    |
[INFO] [stdout] 46 |         let mut neighbours = get_neighbours(&leaves, &leave);
[INFO] [stdout]    |             ----^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.99s
[INFO] running `Command { std: "docker" "inspect" "02f9cc4a15fa04e302087649a3bcb98defde566a17f36db383a24fb42c69dee6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "02f9cc4a15fa04e302087649a3bcb98defde566a17f36db383a24fb42c69dee6", kill_on_drop: false }`
[INFO] [stdout] 02f9cc4a15fa04e302087649a3bcb98defde566a17f36db383a24fb42c69dee6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 06332130488bf2a1b843e75a39c48bc931dd67d2284789063a23b5b7a3312687
[INFO] running `Command { std: "docker" "start" "-a" "06332130488bf2a1b843e75a39c48bc931dd67d2284789063a23b5b7a3312687", kill_on_drop: false }`
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:46:13
[INFO] [stderr]    |
[INFO] [stderr] 46 |         let mut neighbours = get_neighbours(&leaves, &leave);
[INFO] [stderr]    |             ----^^^^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `problem_map_generator` (bin "problem_map_generator" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/problem_map_generator-312bc704edb7fad4)
[INFO] running `Command { std: "docker" "inspect" "06332130488bf2a1b843e75a39c48bc931dd67d2284789063a23b5b7a3312687", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06332130488bf2a1b843e75a39c48bc931dd67d2284789063a23b5b7a3312687", kill_on_drop: false }`
[INFO] [stdout] 06332130488bf2a1b843e75a39c48bc931dd67d2284789063a23b5b7a3312687