[INFO] cloning repository https://github.com/keatinge/rust-schedule-optimizer [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/keatinge/rust-schedule-optimizer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkeatinge%2Frust-schedule-optimizer"` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkeatinge%2Frust-schedule-optimizer'... [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 110685c1cdff41914c8ef824555457b549a998da [INFO] checking keatinge/rust-schedule-optimizer against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkeatinge%2Frust-schedule-optimizer" "/workspace/builds/worker-9/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/keatinge/rust-schedule-optimizer on toolchain 45d050cde277b22a755847338f2acc2c7b834141 [INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/keatinge/rust-schedule-optimizer [INFO] finished tweaking git repo https://github.com/keatinge/rust-schedule-optimizer [INFO] tweaked toml for git repo https://github.com/keatinge/rust-schedule-optimizer written to /workspace/builds/worker-9/source/Cargo.toml [INFO] crate git repo https://github.com/keatinge/rust-schedule-optimizer already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "check" "--frozen" "--all" "--all-targets"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] e18d3fd2ff04bcf2a390f50e81a6e917fcdb14b5de94ab3666e3757d0d0d6e4d [INFO] running `"docker" "start" "-a" "e18d3fd2ff04bcf2a390f50e81a6e917fcdb14b5de94ab3666e3757d0d0d6e4d"` [INFO] [stderr] Compiling quote v0.3.15 [INFO] [stderr] Checking void v1.0.2 [INFO] [stderr] Compiling unicode-xid v0.0.4 [INFO] [stderr] Compiling rustc-serialize v0.3.24 [INFO] [stderr] Checking lazy_static v0.2.11 [INFO] [stderr] Checking cfg-if v0.1.2 [INFO] [stderr] Checking num-traits v0.2.0 [INFO] [stderr] Checking dtoa v0.4.2 [INFO] [stderr] Compiling rand v0.4.2 [INFO] [stderr] Compiling phf_shared v0.7.21 [INFO] [stderr] Checking unreachable v0.1.1 [INFO] [stderr] Checking log v0.4.1 [INFO] [stderr] Compiling synom v0.11.3 [INFO] [stderr] Checking phf v0.7.21 [INFO] [stderr] Checking debug_unreachable v0.1.1 [INFO] [stderr] Compiling syn v0.11.11 [INFO] [stderr] Checking futf v0.1.3 [INFO] [stderr] Checking log v0.3.9 [INFO] [stderr] Checking tendril v0.3.1 [INFO] [stderr] Checking num-traits v0.1.43 [INFO] [stderr] Checking serde_json v1.0.9 [INFO] [stderr] Compiling rand v0.3.22 [INFO] [stderr] Compiling phf_generator v0.7.21 [INFO] [stderr] Compiling string_cache_codegen v0.4.0 [INFO] [stderr] Compiling phf_codegen v0.7.21 [INFO] [stderr] Compiling string_cache v0.6.2 [INFO] [stderr] Compiling markup5ever v0.3.2 [INFO] [stderr] Compiling html5ever v0.18.0 [INFO] [stderr] Checking select v0.4.2 [INFO] [stderr] Checking sched v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unused import: `Equal` [INFO] [stderr] --> src/main.rs:5:32 [INFO] [stderr] | [INFO] [stderr] 5 | use std::cmp::Ordering::{Less, Equal, Greater}; [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused imports: `Attr`, `Predicate` [INFO] [stderr] --> src/main.rs:8:25 [INFO] [stderr] | [INFO] [stderr] 8 | use select::predicate::{Predicate, Attr, Class as HTMLClass, Name, And}; [INFO] [stderr] | ^^^^^^^^^ ^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `Equal` [INFO] [stderr] --> src/main.rs:5:32 [INFO] [stderr] | [INFO] [stderr] 5 | use std::cmp::Ordering::{Less, Equal, Greater}; [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused imports: `Attr`, `Predicate` [INFO] [stderr] --> src/main.rs:8:25 [INFO] [stderr] | [INFO] [stderr] 8 | use select::predicate::{Predicate, Attr, Class as HTMLClass, Name, And}; [INFO] [stderr] | ^^^^^^^^^ ^^^^ [INFO] [stderr] [INFO] [stderr] warning: constant item is never used: `CRN_INDEX` [INFO] [stderr] --> src/main.rs:13:1 [INFO] [stderr] | [INFO] [stderr] 13 | const CRN_INDEX:usize = 1_usize; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: constant item is never used: `INSTRUCTOR_INDEX` [INFO] [stderr] --> src/main.rs:21:1 [INFO] [stderr] | [INFO] [stderr] 21 | const INSTRUCTOR_INDEX:usize = 19_usize; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: constant item is never used: `LOC_INDEX` [INFO] [stderr] --> src/main.rs:22:1 [INFO] [stderr] | [INFO] [stderr] 22 | const LOC_INDEX:usize = 21_usize; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Class` [INFO] [stderr] --> src/main.rs:120:8 [INFO] [stderr] | [INFO] [stderr] 120 | struct Class<'a> { [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `print_stack` [INFO] [stderr] --> src/main.rs:145:4 [INFO] [stderr] | [INFO] [stderr] 145 | fn print_stack(stack: &[&Section]) { [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: comparison is useless due to type limits [INFO] [stderr] --> src/main.rs:196:21 [INFO] [stderr] | [INFO] [stderr] 196 | assert!(day >= 0 && day < 7); [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_comparisons)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable `SHOULD_PRUNE` should have a snake case name [INFO] [stderr] --> src/main.rs:673:9 [INFO] [stderr] | [INFO] [stderr] 673 | let SHOULD_PRUNE = true; [INFO] [stderr] | ^^^^^^^^^^^^ help: convert the identifier to snake case: `should_prune` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(non_snake_case)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:688:5 [INFO] [stderr] | [INFO] [stderr] 688 | file.write_all(full_data.as_bytes()); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: constant item is never used: `CRN_INDEX` [INFO] [stderr] --> src/main.rs:13:1 [INFO] [stderr] | [INFO] [stderr] 13 | const CRN_INDEX:usize = 1_usize; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: constant item is never used: `INSTRUCTOR_INDEX` [INFO] [stderr] --> src/main.rs:21:1 [INFO] [stderr] | [INFO] [stderr] 21 | const INSTRUCTOR_INDEX:usize = 19_usize; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: constant item is never used: `LOC_INDEX` [INFO] [stderr] --> src/main.rs:22:1 [INFO] [stderr] | [INFO] [stderr] 22 | const LOC_INDEX:usize = 21_usize; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Class` [INFO] [stderr] --> src/main.rs:120:8 [INFO] [stderr] | [INFO] [stderr] 120 | struct Class<'a> { [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `print_stack` [INFO] [stderr] --> src/main.rs:145:4 [INFO] [stderr] | [INFO] [stderr] 145 | fn print_stack(stack: &[&Section]) { [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: comparison is useless due to type limits [INFO] [stderr] --> src/main.rs:196:21 [INFO] [stderr] | [INFO] [stderr] 196 | assert!(day >= 0 && day < 7); [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_comparisons)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable `SHOULD_PRUNE` should have a snake case name [INFO] [stderr] --> src/main.rs:673:9 [INFO] [stderr] | [INFO] [stderr] 673 | let SHOULD_PRUNE = true; [INFO] [stderr] | ^^^^^^^^^^^^ help: convert the identifier to snake case: `should_prune` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(non_snake_case)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:688:5 [INFO] [stderr] | [INFO] [stderr] 688 | file.write_all(full_data.as_bytes()); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: 10 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: 10 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 29.37s [INFO] running `"docker" "inspect" "e18d3fd2ff04bcf2a390f50e81a6e917fcdb14b5de94ab3666e3757d0d0d6e4d"` [INFO] running `"docker" "rm" "-f" "e18d3fd2ff04bcf2a390f50e81a6e917fcdb14b5de94ab3666e3757d0d0d6e4d"` [INFO] [stdout] e18d3fd2ff04bcf2a390f50e81a6e917fcdb14b5de94ab3666e3757d0d0d6e4d