[INFO] cloning repository https://github.com/RaoulLuque/petgraph_ford_fulkerson_panic
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/RaoulLuque/petgraph_ford_fulkerson_panic" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRaoulLuque%2Fpetgraph_ford_fulkerson_panic", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRaoulLuque%2Fpetgraph_ford_fulkerson_panic'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f30f1752b7acd76cee744c82dc482b7aa2d310bb
[INFO] checking RaoulLuque/petgraph_ford_fulkerson_panic against try#ddcf048784667508cd676fef4667f88ae15628a3 for pr-148271
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRaoulLuque%2Fpetgraph_ford_fulkerson_panic" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/RaoulLuque/petgraph_ford_fulkerson_panic
[INFO] finished tweaking git repo https://github.com/RaoulLuque/petgraph_ford_fulkerson_panic
[INFO] tweaked toml for git repo https://github.com/RaoulLuque/petgraph_ford_fulkerson_panic written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/RaoulLuque/petgraph_ford_fulkerson_panic on toolchain ddcf048784667508cd676fef4667f88ae15628a3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ddcf048784667508cd676fef4667f88ae15628a3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/RaoulLuque/petgraph_ford_fulkerson_panic already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ddcf048784667508cd676fef4667f88ae15628a3" "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
[ERROR] error running command: no output for 300 seconds
[INFO] checking RaoulLuque/petgraph_ford_fulkerson_panic against try#ddcf048784667508cd676fef4667f88ae15628a3 for pr-148271
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRaoulLuque%2Fpetgraph_ford_fulkerson_panic" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/RaoulLuque/petgraph_ford_fulkerson_panic
[INFO] finished tweaking git repo https://github.com/RaoulLuque/petgraph_ford_fulkerson_panic
[INFO] tweaked toml for git repo https://github.com/RaoulLuque/petgraph_ford_fulkerson_panic written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/RaoulLuque/petgraph_ford_fulkerson_panic on toolchain ddcf048784667508cd676fef4667f88ae15628a3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ddcf048784667508cd676fef4667f88ae15628a3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/RaoulLuque/petgraph_ford_fulkerson_panic already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ddcf048784667508cd676fef4667f88ae15628a3" "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 petgraph v0.8.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ddcf048784667508cd676fef4667f88ae15628a3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1861b472894554ac14f895145996916c3a0b15207e66b9c4df0439151e93c3a3
[INFO] running `Command { std: "docker" "start" "-a" "1861b472894554ac14f895145996916c3a0b15207e66b9c4df0439151e93c3a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1861b472894554ac14f895145996916c3a0b15207e66b9c4df0439151e93c3a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1861b472894554ac14f895145996916c3a0b15207e66b9c4df0439151e93c3a3", kill_on_drop: false }`
[INFO] [stdout] 1861b472894554ac14f895145996916c3a0b15207e66b9c4df0439151e93c3a3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ddcf048784667508cd676fef4667f88ae15628a3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 340cdef650e09004e14b76fe7523048d3c4fffa4c9b1d63a14af91fdde420cfe
[INFO] running `Command { std: "docker" "start" "-a" "340cdef650e09004e14b76fe7523048d3c4fffa4c9b1d63a14af91fdde420cfe", kill_on_drop: false }`
[INFO] [stderr]     Checking foldhash v0.1.5
[INFO] [stderr]     Checking fixedbitset v0.5.7
[INFO] [stderr]     Checking hashbrown v0.15.3
[INFO] [stderr]     Checking indexmap v2.9.0
[INFO] [stderr]     Checking petgraph v0.8.1
[INFO] [stderr]     Checking petgraph_ford_fulkerson_panic v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `ac`
[INFO] [stdout]   --> src/main.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let ac = g.add_edge(a, c, 1);
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_ac`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ac`
[INFO] [stdout]   --> src/main.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let ac = g.add_edge(a, c, 1);
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_ac`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ab`
[INFO] [stdout]   --> src/main.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 17 |     let ab = g.add_edge(a, b, 1);
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_ab`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cd`
[INFO] [stdout]   --> src/main.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |     let cd = g.add_edge(c, d, 1);
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_cd`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ab`
[INFO] [stdout]   --> src/main.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 17 |     let ab = g.add_edge(a, b, 1);
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_ab`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cd`
[INFO] [stdout]   --> src/main.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |     let cd = g.add_edge(c, d, 1);
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_cd`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.08s
[INFO] running `Command { std: "docker" "inspect" "340cdef650e09004e14b76fe7523048d3c4fffa4c9b1d63a14af91fdde420cfe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "340cdef650e09004e14b76fe7523048d3c4fffa4c9b1d63a14af91fdde420cfe", kill_on_drop: false }`
[INFO] [stdout] 340cdef650e09004e14b76fe7523048d3c4fffa4c9b1d63a14af91fdde420cfe
