[INFO] cloning repository https://github.com/axel-kaliff/maxflow
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/axel-kaliff/maxflow" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faxel-kaliff%2Fmaxflow", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faxel-kaliff%2Fmaxflow'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d7e7f9dfa70bf0ac4ca5dada1dfb9f322d2d86e4
[INFO] checking axel-kaliff/maxflow against try#a7a572ce3edd6d476191fbfe92c9c1986e009b34 for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faxel-kaliff%2Fmaxflow" "/workspace/builds/worker-29/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-29/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/axel-kaliff/maxflow on toolchain a7a572ce3edd6d476191fbfe92c9c1986e009b34
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/axel-kaliff/maxflow
[INFO] finished tweaking git repo https://github.com/axel-kaliff/maxflow
[INFO] tweaked toml for git repo https://github.com/axel-kaliff/maxflow written to /workspace/builds/worker-29/source/Cargo.toml
[INFO] crate git repo https://github.com/axel-kaliff/maxflow already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7deb5731e9e4d78c894208e13c2252e7c7e26cb3d317443455f4d670c41f2aa8
[INFO] running `Command { std: "docker" "start" "-a" "7deb5731e9e4d78c894208e13c2252e7c7e26cb3d317443455f4d670c41f2aa8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7deb5731e9e4d78c894208e13c2252e7c7e26cb3d317443455f4d670c41f2aa8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7deb5731e9e4d78c894208e13c2252e7c7e26cb3d317443455f4d670c41f2aa8", kill_on_drop: false }`
[INFO] [stdout] 7deb5731e9e4d78c894208e13c2252e7c7e26cb3d317443455f4d670c41f2aa8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3510def2dec5b08656f59ef5f3a4a74d902f4ea20b3f4d9f040d1260b0f256f1
[INFO] running `Command { std: "docker" "start" "-a" "3510def2dec5b08656f59ef5f3a4a74d902f4ea20b3f4d9f040d1260b0f256f1", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] Running `cargo fix --edition`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking maxflow v0.1.0 (/tmp/fixit)
[INFO] [stderr]    Migrating src/main.rs from 2018 edition to 2021
[INFO] [stderr]        Fixed src/main.rs (1 fix)
[INFO] [stdout] warning: function is never used: `ford_fulkerson`
[INFO] [stdout]  --> src/main.rs:5:4
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn ford_fulkerson(graph: Vec<Vec<usize>>, V: usize, s: usize, t: usize) -> usize {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `bfs`
[INFO] [stdout]   --> src/main.rs:47:4
[INFO] [stdout]    |
[INFO] [stdout] 47 | fn bfs(rGraph: &Vec<Vec<usize>>, s: usize, t: usize, parent: &mut Vec<isize>, V: usize) -> bool {
[INFO] [stdout]    |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `V` should have a snake case name
[INFO] [stdout]  --> src/main.rs:5:43
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn ford_fulkerson(graph: Vec<Vec<usize>>, V: usize, s: usize, t: usize) -> usize {
[INFO] [stdout]   |                                           ^ help: convert the identifier to snake case (notice the capitalization): `v`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `rGraph` should have a snake case name
[INFO] [stdout]  --> src/main.rs:8:13
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let mut rGraph: Vec<Vec<usize>> = Vec::new();
[INFO] [stdout]   |             ^^^^^^ help: convert the identifier to snake case: `r_graph`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `rGraph` should have a snake case name
[INFO] [stdout]   --> src/main.rs:47:8
[INFO] [stdout]    |
[INFO] [stdout] 47 | fn bfs(rGraph: &Vec<Vec<usize>>, s: usize, t: usize, parent: &mut Vec<isize>, V: usize) -> bool {
[INFO] [stdout]    |        ^^^^^^ help: convert the identifier to snake case: `r_graph`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `V` should have a snake case name
[INFO] [stdout]   --> src/main.rs:47:79
[INFO] [stdout]    |
[INFO] [stdout] 47 | fn bfs(rGraph: &Vec<Vec<usize>>, s: usize, t: usize, parent: &mut Vec<isize>, V: usize) -> bool {
[INFO] [stdout]    |                                                                               ^ help: convert the identifier to snake case (notice the capitalization): `v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `ford_fulkerson`
[INFO] [stdout]  --> src/main.rs:5:4
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn ford_fulkerson(graph: Vec<Vec<usize>>, V: usize, s: usize, t: usize) -> usize {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `bfs`
[INFO] [stdout]   --> src/main.rs:47:4
[INFO] [stdout]    |
[INFO] [stdout] 47 | fn bfs(rGraph: &Vec<Vec<usize>>, s: usize, t: usize, parent: &mut Vec<isize>, V: usize) -> bool {
[INFO] [stdout]    |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `V` should have a snake case name
[INFO] [stdout]  --> src/main.rs:5:43
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn ford_fulkerson(graph: Vec<Vec<usize>>, V: usize, s: usize, t: usize) -> usize {
[INFO] [stdout]   |                                           ^ help: convert the identifier to snake case (notice the capitalization): `v`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `rGraph` should have a snake case name
[INFO] [stdout]  --> src/main.rs:8:13
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let mut rGraph: Vec<Vec<usize>> = Vec::new();
[INFO] [stdout]   |             ^^^^^^ help: convert the identifier to snake case: `r_graph`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `rGraph` should have a snake case name
[INFO] [stdout]   --> src/main.rs:47:8
[INFO] [stdout]    |
[INFO] [stdout] 47 | fn bfs(rGraph: &Vec<Vec<usize>>, s: usize, t: usize, parent: &mut Vec<isize>, V: usize) -> bool {
[INFO] [stdout]    |        ^^^^^^ help: convert the identifier to snake case: `r_graph`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `V` should have a snake case name
[INFO] [stdout]   --> src/main.rs:47:79
[INFO] [stdout]    |
[INFO] [stdout] 47 | fn bfs(rGraph: &Vec<Vec<usize>>, s: usize, t: usize, parent: &mut Vec<isize>, V: usize) -> bool {
[INFO] [stdout]    |                                                                               ^ help: convert the identifier to snake case (notice the capitalization): `v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 27.15s
[INFO] [stderr] Running `cargo check` to verify 2021
[INFO] [stderr]     Checking maxflow v0.1.0 (/tmp/fixit)
[INFO] [stdout] warning: function is never used: `ford_fulkerson`
[INFO] [stdout]  --> src/main.rs:5:4
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn ford_fulkerson(graph: Vec<Vec<usize>>, V: usize, s: usize, t: usize) -> usize {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `bfs`
[INFO] [stdout]   --> src/main.rs:47:4
[INFO] [stdout]    |
[INFO] [stdout] 47 | fn bfs(rGraph: &Vec<Vec<usize>>, s: usize, t: usize, parent: &mut Vec<isize>, V: usize) -> bool {
[INFO] [stdout]    |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `ford_fulkerson`
[INFO] [stdout]  --> src/main.rs:5:4
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn ford_fulkerson(graph: Vec<Vec<usize>>, V: usize, s: usize, t: usize) -> usize {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `bfs`
[INFO] [stdout]   --> src/main.rs:47:4
[INFO] [stdout]    |
[INFO] [stdout] 47 | fn bfs(rGraph: &Vec<Vec<usize>>, s: usize, t: usize, parent: &mut Vec<isize>, V: usize) -> bool {
[INFO] [stdout]    |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `V` should have a snake case name
[INFO] [stdout]  --> src/main.rs:5:43
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn ford_fulkerson(graph: Vec<Vec<usize>>, V: usize, s: usize, t: usize) -> usize {
[INFO] [stdout]   |                                           ^ help: convert the identifier to snake case (notice the capitalization): `v`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `rGraph` should have a snake case name
[INFO] [stdout]  --> src/main.rs:8:13
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let mut rGraph: Vec<Vec<usize>> = Vec::new();
[INFO] [stdout]   |             ^^^^^^ help: convert the identifier to snake case: `r_graph`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `rGraph` should have a snake case name
[INFO] [stdout]   --> src/main.rs:47:8
[INFO] [stdout]    |
[INFO] [stdout] 47 | fn bfs(rGraph: &Vec<Vec<usize>>, s: usize, t: usize, parent: &mut Vec<isize>, V: usize) -> bool {
[INFO] [stdout]    |        ^^^^^^ help: convert the identifier to snake case: `r_graph`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `V` should have a snake case name
[INFO] [stdout]   --> src/main.rs:47:79
[INFO] [stdout]    |
[INFO] [stdout] 47 | fn bfs(rGraph: &Vec<Vec<usize>>, s: usize, t: usize, parent: &mut Vec<isize>, V: usize) -> bool {
[INFO] [stdout]    |                                                                               ^ help: convert the identifier to snake case (notice the capitalization): `v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `V` should have a snake case name
[INFO] [stdout]  --> src/main.rs:5:43
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn ford_fulkerson(graph: Vec<Vec<usize>>, V: usize, s: usize, t: usize) -> usize {
[INFO] [stdout]   |                                           ^ help: convert the identifier to snake case (notice the capitalization): `v`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `rGraph` should have a snake case name
[INFO] [stdout]  --> src/main.rs:8:13
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let mut rGraph: Vec<Vec<usize>> = Vec::new();
[INFO] [stdout]   |             ^^^^^^ help: convert the identifier to snake case: `r_graph`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `rGraph` should have a snake case name
[INFO] [stdout]   --> src/main.rs:47:8
[INFO] [stdout]    |
[INFO] [stdout] 47 | fn bfs(rGraph: &Vec<Vec<usize>>, s: usize, t: usize, parent: &mut Vec<isize>, V: usize) -> bool {
[INFO] [stdout]    |        ^^^^^^ help: convert the identifier to snake case: `r_graph`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `V` should have a snake case name
[INFO] [stdout]   --> src/main.rs:47:79
[INFO] [stdout]    |
[INFO] [stdout] 47 | fn bfs(rGraph: &Vec<Vec<usize>>, s: usize, t: usize, parent: &mut Vec<isize>, V: usize) -> bool {
[INFO] [stdout]    |                                                                               ^ help: convert the identifier to snake case (notice the capitalization): `v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.50s
[INFO] running `Command { std: "docker" "inspect" "3510def2dec5b08656f59ef5f3a4a74d902f4ea20b3f4d9f040d1260b0f256f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3510def2dec5b08656f59ef5f3a4a74d902f4ea20b3f4d9f040d1260b0f256f1", kill_on_drop: false }`
[INFO] [stdout] 3510def2dec5b08656f59ef5f3a4a74d902f4ea20b3f4d9f040d1260b0f256f1