[INFO] fetching crate rreplace 0.1.0...
[INFO] checking rreplace-0.1.0 against try#3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f for pr-87248
[INFO] extracting crate rreplace 0.1.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate rreplace 0.1.0 on toolchain 3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rreplace 0.1.0
[INFO] finished tweaking crates.io crate rreplace 0.1.0
[INFO] tweaked toml for crates.io crate rreplace 0.1.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 56ff6452bdf202bb09d8fcb3d35052b848ff818c2b30a0e94bb6aeff33278a1e
[INFO] running `Command { std: "docker" "start" "-a" "56ff6452bdf202bb09d8fcb3d35052b848ff818c2b30a0e94bb6aeff33278a1e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "56ff6452bdf202bb09d8fcb3d35052b848ff818c2b30a0e94bb6aeff33278a1e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "56ff6452bdf202bb09d8fcb3d35052b848ff818c2b30a0e94bb6aeff33278a1e", kill_on_drop: false }`
[INFO] [stdout] 56ff6452bdf202bb09d8fcb3d35052b848ff818c2b30a0e94bb6aeff33278a1e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dad271bafdc4a43dbb7ab1797897fde9f368e6ab199f79ae0f2f6f2b808f2b21
[INFO] running `Command { std: "docker" "start" "-a" "dad271bafdc4a43dbb7ab1797897fde9f368e6ab199f79ae0f2f6f2b808f2b21", kill_on_drop: false }`
[INFO] [stderr]     Checking rreplace v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::ops::Add`
[INFO] [stdout]    --> src/lib.rs:100:5
[INFO] [stdout]     |
[INFO] [stdout] 100 | use std::ops::Add;
[INFO] [stdout]     |     ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::Add`
[INFO] [stdout]    --> src/lib.rs:100:5
[INFO] [stdout]     |
[INFO] [stdout] 100 | use std::ops::Add;
[INFO] [stdout]     |     ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `clear`
[INFO] [stdout]    --> src/lib.rs:143:8
[INFO] [stdout]     |
[INFO] [stdout] 143 |     fn clear(&mut self) {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `inc_index`
[INFO] [stdout]    --> src/lib.rs:147:8
[INFO] [stdout]     |
[INFO] [stdout] 147 |     fn inc_index(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `inc_index_by`
[INFO] [stdout]    --> src/lib.rs:151:8
[INFO] [stdout]     |
[INFO] [stdout] 151 |     fn inc_index_by(&mut self, num: usize) {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `count`
[INFO] [stdout]    --> src/lib.rs:163:8
[INFO] [stdout]     |
[INFO] [stdout] 163 |     fn count(&self) -> usize {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `clear`
[INFO] [stdout]    --> src/lib.rs:143:8
[INFO] [stdout]     |
[INFO] [stdout] 143 |     fn clear(&mut self) {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `inc_index`
[INFO] [stdout]    --> src/lib.rs:147:8
[INFO] [stdout]     |
[INFO] [stdout] 147 |     fn inc_index(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `inc_index_by`
[INFO] [stdout]    --> src/lib.rs:151:8
[INFO] [stdout]     |
[INFO] [stdout] 151 |     fn inc_index_by(&mut self, num: usize) {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `count`
[INFO] [stdout]    --> src/lib.rs:163:8
[INFO] [stdout]     |
[INFO] [stdout] 163 |     fn count(&self) -> usize {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.28s
[INFO] running `Command { std: "docker" "inspect" "dad271bafdc4a43dbb7ab1797897fde9f368e6ab199f79ae0f2f6f2b808f2b21", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dad271bafdc4a43dbb7ab1797897fde9f368e6ab199f79ae0f2f6f2b808f2b21", kill_on_drop: false }`
[INFO] [stdout] dad271bafdc4a43dbb7ab1797897fde9f368e6ab199f79ae0f2f6f2b808f2b21