[INFO] cloning repository https://github.com/JLerxky/algorithm
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/JLerxky/algorithm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJLerxky%2Falgorithm", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJLerxky%2Falgorithm'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 56a9d206312cff27fda55944882dcec8f7c4e44b
[INFO] checking JLerxky/algorithm against try#024378d9203a4009ed73d6db2681b88a8d74ce7a for pr-112160
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJLerxky%2Falgorithm" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/JLerxky/algorithm on toolchain 024378d9203a4009ed73d6db2681b88a8d74ce7a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+024378d9203a4009ed73d6db2681b88a8d74ce7a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/JLerxky/algorithm
[INFO] finished tweaking git repo https://github.com/JLerxky/algorithm
[INFO] tweaked toml for git repo https://github.com/JLerxky/algorithm written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/JLerxky/algorithm 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" "+024378d9203a4009ed73d6db2681b88a8d74ce7a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+024378d9203a4009ed73d6db2681b88a8d74ce7a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4436dfa64a1fffb0e0256127ad666408e7b76d1d865de78402fdb2b498e784c1
[INFO] running `Command { std: "docker" "start" "-a" "4436dfa64a1fffb0e0256127ad666408e7b76d1d865de78402fdb2b498e784c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4436dfa64a1fffb0e0256127ad666408e7b76d1d865de78402fdb2b498e784c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4436dfa64a1fffb0e0256127ad666408e7b76d1d865de78402fdb2b498e784c1", kill_on_drop: false }`
[INFO] [stdout] 4436dfa64a1fffb0e0256127ad666408e7b76d1d865de78402fdb2b498e784c1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+024378d9203a4009ed73d6db2681b88a8d74ce7a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 349d8ceeab9bbb943b3ebf05a2fdee4a5d69b581588b22e51a2dad51c5e05fd3
[INFO] running `Command { std: "docker" "start" "-a" "349d8ceeab9bbb943b3ebf05a2fdee4a5d69b581588b22e51a2dad51c5e05fd3", kill_on_drop: false }`
[INFO] [stderr]     Checking structure v0.1.0 (/opt/rustwide/workdir/structure)
[INFO] [stderr]     Checking sorting v0.1.0 (/opt/rustwide/workdir/sorting)
[INFO] [stderr]     Checking graph v0.1.0 (/opt/rustwide/workdir/graph)
[INFO] [stderr]     Checking hw v0.1.0 (/opt/rustwide/workdir/hw)
[INFO] [stderr]     Checking search v0.1.0 (/opt/rustwide/workdir/search)
[INFO] [stdout] warning: unused import: `std::net`
[INFO] [stdout]  --> hw/src/lib.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::net;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::net`
[INFO] [stdout]  --> hw/src/lib.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::net;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]  --> structure/src/reverse_list.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | impl ListNode {
[INFO] [stdout]   | ------------- associated function in this implementation
[INFO] [stdout] 8 |     #[inline]
[INFO] [stdout] 9 |     fn new(val: i32) -> Self {
[INFO] [stdout]   |        ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]  --> structure/src/reverse_list.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | impl ListNode {
[INFO] [stdout]   | ------------- associated function in this implementation
[INFO] [stdout] 8 |     #[inline]
[INFO] [stdout] 9 |     fn new(val: i32) -> Self {
[INFO] [stdout]   |        ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` 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] [stdout] warning: fields `v` and `q` are never read
[INFO] [stdout]   --> graph/src/topological_sort.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct Graphadj {
[INFO] [stdout]    |            -------- fields in this struct
[INFO] [stdout] 17 |     v: usize,
[INFO] [stdout]    |     ^
[INFO] [stdout] 18 |     adj: Vec<Vec<usize>>,
[INFO] [stdout] 19 |     q: Vec<usize>,
[INFO] [stdout]    |     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `add_edge` and `topological_sort` are never used
[INFO] [stdout]   --> graph/src/topological_sort.rs:39:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | impl Graphadj {
[INFO] [stdout]    | ------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 39 |     fn add_edge(&mut self, v: usize, w: usize) {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 48 |     fn topological_sort(mut self) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> hw/src/lib.rs:114:31
[INFO] [stdout]     |
[INFO] [stdout] 114 |         let sub_mask = text[1].clone();
[INFO] [stdout]     |                               ^^^^^^^^ unnecessary method call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[deny(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `hw` (lib test) due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "349d8ceeab9bbb943b3ebf05a2fdee4a5d69b581588b22e51a2dad51c5e05fd3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "349d8ceeab9bbb943b3ebf05a2fdee4a5d69b581588b22e51a2dad51c5e05fd3", kill_on_drop: false }`
[INFO] [stdout] 349d8ceeab9bbb943b3ebf05a2fdee4a5d69b581588b22e51a2dad51c5e05fd3