[INFO] cloning repository https://github.com/ahmadyovan/optimization-schedule-app-new-update-ruangan
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ahmadyovan/optimization-schedule-app-new-update-ruangan" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fahmadyovan%2Foptimization-schedule-app-new-update-ruangan", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fahmadyovan%2Foptimization-schedule-app-new-update-ruangan'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e134df5ff3e022ca85858457a8c0e64ce909329d
[INFO] checking ahmadyovan/optimization-schedule-app-new-update-ruangan against try#0611f7de057c584b8771102fde7aed6c70c71d3b for pr-146440
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fahmadyovan%2Foptimization-schedule-app-new-update-ruangan" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/ahmadyovan/optimization-schedule-app-new-update-ruangan
[INFO] finished tweaking git repo https://github.com/ahmadyovan/optimization-schedule-app-new-update-ruangan
[INFO] tweaked toml for git repo https://github.com/ahmadyovan/optimization-schedule-app-new-update-ruangan written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ahmadyovan/optimization-schedule-app-new-update-ruangan on toolchain 0611f7de057c584b8771102fde7aed6c70c71d3b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/ahmadyovan/optimization-schedule-app-new-update-ruangan 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" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1e40122c55c500cbb4dde7997fe0c5fd3a152515a0676543a55ad279ab00c660
[INFO] running `Command { std: "docker" "start" "-a" "1e40122c55c500cbb4dde7997fe0c5fd3a152515a0676543a55ad279ab00c660", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1e40122c55c500cbb4dde7997fe0c5fd3a152515a0676543a55ad279ab00c660", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e40122c55c500cbb4dde7997fe0c5fd3a152515a0676543a55ad279ab00c660", kill_on_drop: false }`
[INFO] [stdout] 1e40122c55c500cbb4dde7997fe0c5fd3a152515a0676543a55ad279ab00c660
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ec2ba6c37f4d9696443c13dced096c82c7b6ab48b756f455ae74d926afece87f
[INFO] running `Command { std: "docker" "start" "-a" "ec2ba6c37f4d9696443c13dced096c82c7b6ab48b756f455ae74d926afece87f", kill_on_drop: false }`
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[INFO] [stderr]     Checking optimization-schedule-app v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `core::num`
[INFO] [stdout]  --> src/algorithms/tune.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use core::num;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::num`
[INFO] [stdout]  --> src/algorithms/tune.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use core::num;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `label`
[INFO] [stdout]    --> src/algorithms/optimizer.rs:273:24
[INFO] [stdout]     |
[INFO] [stdout] 273 |     let assign_room = |label: &str, items: &mut Vec<(f64, f64, f64, OptimizedCourse)>| {
[INFO] [stdout]     |                        ^^^^^ help: if this is intentional, prefix it with an underscore: `_label`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `day_priority`
[INFO] [stdout]    --> src/algorithms/optimizer.rs:306:18
[INFO] [stdout]     |
[INFO] [stdout] 306 |         for (i, (day_priority, time_priority, mut course)) in courses.into_iter().enumerate() {
[INFO] [stdout]     |                  ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_day_priority`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `label`
[INFO] [stdout]    --> src/algorithms/optimizer.rs:273:24
[INFO] [stdout]     |
[INFO] [stdout] 273 |     let assign_room = |label: &str, items: &mut Vec<(f64, f64, f64, OptimizedCourse)>| {
[INFO] [stdout]     |                        ^^^^^ help: if this is intentional, prefix it with an underscore: `_label`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `day_priority`
[INFO] [stdout]    --> src/algorithms/optimizer.rs:306:18
[INFO] [stdout]     |
[INFO] [stdout] 306 |         for (i, (day_priority, time_priority, mut course)) in courses.into_iter().enumerate() {
[INFO] [stdout]     |                  ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_day_priority`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: struct `ConflictResult` is never constructed
[INFO] [stdout]   --> src/algorithms/checker.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct ConflictResult {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout]    = note: `#[deny(unused_unconstructable_pub_struct)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: struct `ConflictResult` is never constructed
[INFO] [stdout]   --> src/algorithms/checker.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct ConflictResult {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout]    = note: `#[deny(unused_unconstructable_pub_struct)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `optimization-schedule-app` (lib test) due to 1 previous error; 3 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `optimization-schedule-app` (lib) due to 1 previous error; 3 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "ec2ba6c37f4d9696443c13dced096c82c7b6ab48b756f455ae74d926afece87f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec2ba6c37f4d9696443c13dced096c82c7b6ab48b756f455ae74d926afece87f", kill_on_drop: false }`
[INFO] [stdout] ec2ba6c37f4d9696443c13dced096c82c7b6ab48b756f455ae74d926afece87f
