[INFO] cloning repository https://github.com/Isaac-Fate/toybox
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Isaac-Fate/toybox" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FIsaac-Fate%2Ftoybox", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FIsaac-Fate%2Ftoybox'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b5b470f3edbf47da34e8f17c1943e452ef5c8b2d
[INFO] checking Isaac-Fate/toybox/b5b470f3edbf47da34e8f17c1943e452ef5c8b2d against c9ff496891c278ad660bc0ab85c1f0b72059464a for pr-160491
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FIsaac-Fate%2Ftoybox" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Isaac-Fate/toybox
[INFO] finished tweaking git repo https://github.com/Isaac-Fate/toybox
[INFO] tweaked toml for git repo https://github.com/Isaac-Fate/toybox written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Isaac-Fate/toybox on toolchain c9ff496891c278ad660bc0ab85c1f0b72059464a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c9ff496891c278ad660bc0ab85c1f0b72059464a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Isaac-Fate/toybox 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" "+c9ff496891c278ad660bc0ab85c1f0b72059464a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:00c5645b54fe3ce5dae1417175e3c7fb6a6646c021d554ecd63a097b8b9f3602" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] a501e8e770c1360e55c703d5d3147841ccd29b35dd195ee09e6fe0598377d499
[INFO] running `Command { std: "docker" "start" "a501e8e770c1360e55c703d5d3147841ccd29b35dd195ee09e6fe0598377d499", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a501e8e770c1360e55c703d5d3147841ccd29b35dd195ee09e6fe0598377d499", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "a501e8e770c1360e55c703d5d3147841ccd29b35dd195ee09e6fe0598377d499" "/opt/rustwide/cargo-home/bin/cargo" "+c9ff496891c278ad660bc0ab85c1f0b72059464a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a501e8e770c1360e55c703d5d3147841ccd29b35dd195ee09e6fe0598377d499", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "a501e8e770c1360e55c703d5d3147841ccd29b35dd195ee09e6fe0598377d499" "/opt/rustwide/cargo-home/bin/cargo" "+c9ff496891c278ad660bc0ab85c1f0b72059464a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.82
[INFO] [stderr]    Compiling thiserror v1.0.60
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling syn v2.0.64
[INFO] [stderr]    Compiling thiserror-impl v1.0.60
[INFO] [stderr]     Checking toybox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `BitOr`
[INFO] [stdout]   --> src/collections/interval_set/mod.rs:10:25
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::ops::{ BitAnd, BitOr };
[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: `BitOr`
[INFO] [stdout]   --> src/collections/interval_set/mod.rs:10:25
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::ops::{ BitAnd, BitOr };
[INFO] [stdout]    |                         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/collections/linked_list.rs:27:13
[INFO] [stdout]    |
[INFO] [stdout] 27 |         let mut list = LinkedList::<i32>::new();
[INFO] [stdout]    |             ----^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `other`
[INFO] [stdout]   --> src/collections/interval_set/mod.rs:81:25
[INFO] [stdout]    |
[INFO] [stdout] 81 |     pub fn union(&self, other: &Self) -> Self {
[INFO] [stdout]    |                         ^^^^^ help: if this is intentional, prefix it with an underscore: `_other`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `other`
[INFO] [stdout]   --> src/collections/interval_set/mod.rs:85:32
[INFO] [stdout]    |
[INFO] [stdout] 85 |     pub fn intersection(&self, other: &Self) -> Self {
[INFO] [stdout]    |                                ^^^^^ help: if this is intentional, prefix it with an underscore: `_other`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rhs`
[INFO] [stdout]   --> src/collections/interval_set/mod.rs:99:21
[INFO] [stdout]    |
[INFO] [stdout] 99 |     fn bitand(self, rhs: Self) -> Self::Output {
[INFO] [stdout]    |                     ^^^ help: if this is intentional, prefix it with an underscore: `_rhs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `LinkedListNode` is never constructed
[INFO] [stdout]  --> src/collections/linked_list.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct LinkedListNode<T> {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `intervals` is never read
[INFO] [stdout]   --> src/collections/interval_set/mod.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct IntervalSet<T: PartialOrd + Clone> {
[INFO] [stdout]    |            ----------- field in this struct
[INFO] [stdout] 13 |     intervals: Vec<Interval<T>>,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `greater_left_endpoint` and `less_right_endpoint` are never used
[INFO] [stdout]    --> src/collections/interval_set/interval.rs:309:8
[INFO] [stdout]     |
[INFO] [stdout]  13 | impl<T: PartialOrd + Clone> Interval<T> {
[INFO] [stdout]     | --------------------------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 309 |     fn greater_left_endpoint(&self, other: &Self) -> Endpoint<T> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 343 |     fn less_right_endpoint(&self, other: &Self) -> Endpoint<T> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `other`
[INFO] [stdout]   --> src/collections/interval_set/mod.rs:81:25
[INFO] [stdout]    |
[INFO] [stdout] 81 |     pub fn union(&self, other: &Self) -> Self {
[INFO] [stdout]    |                         ^^^^^ help: if this is intentional, prefix it with an underscore: `_other`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `other`
[INFO] [stdout]   --> src/collections/interval_set/mod.rs:85:32
[INFO] [stdout]    |
[INFO] [stdout] 85 |     pub fn intersection(&self, other: &Self) -> Self {
[INFO] [stdout]    |                                ^^^^^ help: if this is intentional, prefix it with an underscore: `_other`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rhs`
[INFO] [stdout]   --> src/collections/interval_set/mod.rs:99:21
[INFO] [stdout]    |
[INFO] [stdout] 99 |     fn bitand(self, rhs: Self) -> Self::Output {
[INFO] [stdout]    |                     ^^^ help: if this is intentional, prefix it with an underscore: `_rhs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `LinkedListNode` is never constructed
[INFO] [stdout]  --> src/collections/linked_list.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct LinkedListNode<T> {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `intervals` is never read
[INFO] [stdout]   --> src/collections/interval_set/mod.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct IntervalSet<T: PartialOrd + Clone> {
[INFO] [stdout]    |            ----------- field in this struct
[INFO] [stdout] 13 |     intervals: Vec<Interval<T>>,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `greater_left_endpoint` and `less_right_endpoint` are never used
[INFO] [stdout]    --> src/collections/interval_set/interval.rs:309:8
[INFO] [stdout]     |
[INFO] [stdout]  13 | impl<T: PartialOrd + Clone> Interval<T> {
[INFO] [stdout]     | --------------------------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 309 |     fn greater_left_endpoint(&self, other: &Self) -> Endpoint<T> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 343 |     fn less_right_endpoint(&self, other: &Self) -> Endpoint<T> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.64s
[INFO] running `Command { std: "docker" "inspect" "a501e8e770c1360e55c703d5d3147841ccd29b35dd195ee09e6fe0598377d499", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a501e8e770c1360e55c703d5d3147841ccd29b35dd195ee09e6fe0598377d499", kill_on_drop: false }`
[INFO] [stdout] a501e8e770c1360e55c703d5d3147841ccd29b35dd195ee09e6fe0598377d499
