[INFO] cloning repository https://github.com/j-fro/team_allocator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/j-fro/team_allocator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fj-fro%2Fteam_allocator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fj-fro%2Fteam_allocator'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 14355ccfc7da566cb4d442ab70bc1937d6b9d2d0
[INFO] checking j-fro/team_allocator against try#b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f for pr-76104
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fj-fro%2Fteam_allocator" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/j-fro/team_allocator on toolchain b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/j-fro/team_allocator
[INFO] finished tweaking git repo https://github.com/j-fro/team_allocator
[INFO] tweaked toml for git repo https://github.com/j-fro/team_allocator written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/j-fro/team_allocator already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e39cbb0821c5c7374a85b9cab3e3264a0d16c301eb8b51424f9c966d6bde4072
[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" "e39cbb0821c5c7374a85b9cab3e3264a0d16c301eb8b51424f9c966d6bde4072", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e39cbb0821c5c7374a85b9cab3e3264a0d16c301eb8b51424f9c966d6bde4072", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e39cbb0821c5c7374a85b9cab3e3264a0d16c301eb8b51424f9c966d6bde4072", kill_on_drop: false }`
[INFO] [stdout] e39cbb0821c5c7374a85b9cab3e3264a0d16c301eb8b51424f9c966d6bde4072
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d4997d99985a109044eb6852ce958e4af52bdf168490dedbf4512597f869152a
[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" "d4997d99985a109044eb6852ce958e4af52bdf168490dedbf4512597f869152a", kill_on_drop: false }`
[INFO] [stderr]     Checking team_randomizer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `group_max`
[INFO] [stdout]  --> src/lib.rs:2:49
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub fn allocate_teams<'a>(names: &'a Vec<&str>, group_max: usize) -> Vec<Vec<Vec<&'a str>>> {
[INFO] [stdout]   |                                                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_group_max`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `group_max`
[INFO] [stdout]  --> src/lib.rs:2:49
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub fn allocate_teams<'a>(names: &'a Vec<&str>, group_max: usize) -> Vec<Vec<Vec<&'a str>>> {
[INFO] [stdout]   |                                                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_group_max`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.24s
[INFO] running `Command { std: "docker" "inspect" "d4997d99985a109044eb6852ce958e4af52bdf168490dedbf4512597f869152a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d4997d99985a109044eb6852ce958e4af52bdf168490dedbf4512597f869152a", kill_on_drop: false }`
[INFO] [stdout] d4997d99985a109044eb6852ce958e4af52bdf168490dedbf4512597f869152a