[INFO] cloning repository https://github.com/RaineForest/supply-solver
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/RaineForest/supply-solver" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRaineForest%2Fsupply-solver", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRaineForest%2Fsupply-solver'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8718f22b783e119b7128de4187ac00150976fac6
[INFO] checking RaineForest/supply-solver against master#fdca237d5194bf8a1c9b437ebd2114d1c2ba6195 for pr-97739
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRaineForest%2Fsupply-solver" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/RaineForest/supply-solver on toolchain fdca237d5194bf8a1c9b437ebd2114d1c2ba6195
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+fdca237d5194bf8a1c9b437ebd2114d1c2ba6195" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/RaineForest/supply-solver
[INFO] finished tweaking git repo https://github.com/RaineForest/supply-solver
[INFO] tweaked toml for git repo https://github.com/RaineForest/supply-solver written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/RaineForest/supply-solver already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+fdca237d5194bf8a1c9b437ebd2114d1c2ba6195" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:ac0d0aa6ec8ed129e241004a6179c99fa0d2616f50ba759c5b60bd26d0fafa02" "/opt/rustwide/cargo-home/bin/cargo" "+fdca237d5194bf8a1c9b437ebd2114d1c2ba6195" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8fa51f07448ddf36856d1660a0ca1a68ba6a9602a3581cd96f8c1a5fc9ac9e7a
[INFO] running `Command { std: "docker" "start" "-a" "8fa51f07448ddf36856d1660a0ca1a68ba6a9602a3581cd96f8c1a5fc9ac9e7a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8fa51f07448ddf36856d1660a0ca1a68ba6a9602a3581cd96f8c1a5fc9ac9e7a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8fa51f07448ddf36856d1660a0ca1a68ba6a9602a3581cd96f8c1a5fc9ac9e7a", kill_on_drop: false }`
[INFO] [stdout] 8fa51f07448ddf36856d1660a0ca1a68ba6a9602a3581cd96f8c1a5fc9ac9e7a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:ac0d0aa6ec8ed129e241004a6179c99fa0d2616f50ba759c5b60bd26d0fafa02" "/opt/rustwide/cargo-home/bin/cargo" "+fdca237d5194bf8a1c9b437ebd2114d1c2ba6195" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 331ce1abd92ab75f07be818fd8d7972851603069b0409ed263b9c532ac86ace2
[INFO] running `Command { std: "docker" "start" "-a" "331ce1abd92ab75f07be818fd8d7972851603069b0409ed263b9c532ac86ace2", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.34
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling syn v1.0.82
[INFO] [stderr]    Compiling libc v0.2.112
[INFO] [stderr]    Compiling serde_derive v1.0.132
[INFO] [stderr]    Compiling serde v1.0.132
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking linked-hash-map v0.5.4
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking ryu v1.0.9
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking yaml-rust v0.4.5
[INFO] [stderr]    Compiling heck v0.3.3
[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 num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking num-complex v0.4.0
[INFO] [stderr]     Checking num v0.4.0
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]     Checking structopt v0.3.25
[INFO] [stderr]     Checking serde_yaml v0.8.23
[INFO] [stderr]     Checking supply-solver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function `order` is never used
[INFO] [stdout]   --> src/hypergraph.rs:74:12
[INFO] [stdout]    |
[INFO] [stdout] 74 |     pub fn order(&self) -> usize {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `size` is never used
[INFO] [stdout]   --> src/hypergraph.rs:78:12
[INFO] [stdout]    |
[INFO] [stdout] 78 |     pub fn size(&self) -> usize {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `neighbors` is never used
[INFO] [stdout]   --> src/hypergraph.rs:82:12
[INFO] [stdout]    |
[INFO] [stdout] 82 |     pub fn neighbors(&self, node: &N) -> Result<Vec<&EdgeIndex>, &str> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `get_node` is never used
[INFO] [stdout]   --> src/hypergraph.rs:90:12
[INFO] [stdout]    |
[INFO] [stdout] 90 |     pub fn get_node(&self, n: &NodeIndex) -> Result<&N, &str> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `get_node` is never used
[INFO] [stdout]   --> src/hypergraph.rs:90:12
[INFO] [stdout]    |
[INFO] [stdout] 90 |     pub fn get_node(&self, n: &NodeIndex) -> Result<&N, &str> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` 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 15.09s
[INFO] running `Command { std: "docker" "inspect" "331ce1abd92ab75f07be818fd8d7972851603069b0409ed263b9c532ac86ace2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "331ce1abd92ab75f07be818fd8d7972851603069b0409ed263b9c532ac86ace2", kill_on_drop: false }`
[INFO] [stdout] 331ce1abd92ab75f07be818fd8d7972851603069b0409ed263b9c532ac86ace2