[INFO] cloning repository https://github.com/ephraimkunz/Groups
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ephraimkunz/Groups" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fephraimkunz%2FGroups", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fephraimkunz%2FGroups'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b7db47996d9733adc21e0ed14ffed8cea684119c
[INFO] checking ephraimkunz/Groups against master#e652caa679a304af11fc04f1f12452f255a82593 for pr-98000
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fephraimkunz%2FGroups" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ephraimkunz/Groups on toolchain e652caa679a304af11fc04f1f12452f255a82593
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e652caa679a304af11fc04f1f12452f255a82593" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ephraimkunz/Groups
[INFO] finished tweaking git repo https://github.com/ephraimkunz/Groups
[INFO] tweaked toml for git repo https://github.com/ephraimkunz/Groups written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/ephraimkunz/Groups already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e652caa679a304af11fc04f1f12452f255a82593" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stdout] ee8582a6b102e5d1d44afa63e75d1b3e9f192ab163bbcac895ea9535403ac299
[INFO] running `Command { std: "docker" "start" "-a" "ee8582a6b102e5d1d44afa63e75d1b3e9f192ab163bbcac895ea9535403ac299", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ee8582a6b102e5d1d44afa63e75d1b3e9f192ab163bbcac895ea9535403ac299", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee8582a6b102e5d1d44afa63e75d1b3e9f192ab163bbcac895ea9535403ac299", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+e652caa679a304af11fc04f1f12452f255a82593" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b33202ac2b219554a02d117697ff7e55396877b76e03de31ddd4d661ea75cdb1
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[INFO] [stderr]     Checking groups_core v0.1.0 (/opt/rustwide/workdir/groups_core)
[INFO] [stdout] warning: unused variable: `students`
[INFO] [stdout]  --> groups_core/src/scheduling/min_max_strategy.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn run(students: &[Student], group_size: usize) -> Vec<Group> {
[INFO] [stdout]   |            ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_students`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `group_size`
[INFO] [stdout]  --> groups_core/src/scheduling/min_max_strategy.rs:6:34
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn run(students: &[Student], group_size: usize) -> Vec<Group> {
[INFO] [stdout]   |                                  ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_group_size`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `students`
[INFO] [stdout]  --> groups_core/src/scheduling/min_max_strategy.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn run(students: &[Student], group_size: usize) -> Vec<Group> {
[INFO] [stdout]   |            ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_students`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `group_size`
[INFO] [stdout]  --> groups_core/src/scheduling/min_max_strategy.rs:6:34
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn run(students: &[Student], group_size: usize) -> Vec<Group> {
[INFO] [stdout]   |                                  ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_group_size`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `run`
[INFO] [stdout]  --> groups_core/src/scheduling/min_max_strategy.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn run(students: &[Student], group_size: usize) -> Vec<Group> {
[INFO] [stdout]   |        ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `run`
[INFO] [stdout]  --> groups_core/src/scheduling/min_max_strategy.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn run(students: &[Student], group_size: usize) -> Vec<Group> {
[INFO] [stdout]   |        ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking shuttle-service v0.2.6
[INFO] [stderr]     Checking groups_server v0.1.0 (/opt/rustwide/workdir/groups_server)
[INFO] [stderr]     Checking groups_server_local v0.1.0 (/opt/rustwide/workdir/groups_server_local)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 21s
[INFO] running `Command { std: "docker" "inspect" "b33202ac2b219554a02d117697ff7e55396877b76e03de31ddd4d661ea75cdb1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b33202ac2b219554a02d117697ff7e55396877b76e03de31ddd4d661ea75cdb1", kill_on_drop: false }`
[INFO] [stdout] b33202ac2b219554a02d117697ff7e55396877b76e03de31ddd4d661ea75cdb1