[INFO] fetching crate rreplace 0.1.0... [INFO] checking rreplace-0.1.0 against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170 [INFO] extracting crate rreplace 0.1.0 into /workspace/builds/worker-4-tc1/source [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-4-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate rreplace 0.1.0 on toolchain cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 75f2e5019a66b581377b840d041ad1727cc8464110dcc2eceeae355027d24844 [INFO] running `Command { std: "docker" "start" "-a" "75f2e5019a66b581377b840d041ad1727cc8464110dcc2eceeae355027d24844", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "75f2e5019a66b581377b840d041ad1727cc8464110dcc2eceeae355027d24844", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "75f2e5019a66b581377b840d041ad1727cc8464110dcc2eceeae355027d24844", kill_on_drop: false }` [INFO] [stdout] 75f2e5019a66b581377b840d041ad1727cc8464110dcc2eceeae355027d24844 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] e04bb95eafb7c998ddb62222e3db5a893c2e960c5d7392d19cdc947013b1654e [INFO] running `Command { std: "docker" "start" "-a" "e04bb95eafb7c998ddb62222e3db5a893c2e960c5d7392d19cdc947013b1654e", 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: methods `clear`, `inc_index`, `inc_index_by`, and `count` are never used [INFO] [stdout] --> src/lib.rs:143:8 [INFO] [stdout] | [INFO] [stdout] 106 | impl StringCache { [INFO] [stdout] | ---------------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 143 | fn clear(&mut self) { [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 147 | fn inc_index(&mut self) { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 151 | fn inc_index_by(&mut self, num: usize) { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 163 | fn count(&self) -> usize { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/lib.rs:188:12 [INFO] [stdout] | [INFO] [stdout] 188 | seqs: &'a Vec<(&'a str, &'a str)>, [INFO] [stdout] | ^^ ^^ ^^ these lifetimes flow to the output [INFO] [stdout] | | | [INFO] [stdout] | | these lifetimes flow to the output [INFO] [stdout] | these lifetimes flow to the output [INFO] [stdout] 189 | ) -> Option> { [INFO] [stdout] | ------- the lifetime gets resolved as `'a` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: one option is to consistently use `'a` [INFO] [stdout] | [INFO] [stdout] 189 | ) -> Option>> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `clear`, `inc_index`, `inc_index_by`, and `count` are never used [INFO] [stdout] --> src/lib.rs:143:8 [INFO] [stdout] | [INFO] [stdout] 106 | impl StringCache { [INFO] [stdout] | ---------------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 143 | fn clear(&mut self) { [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 147 | fn inc_index(&mut self) { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 151 | fn inc_index_by(&mut self, num: usize) { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 163 | fn count(&self) -> usize { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/lib.rs:188:12 [INFO] [stdout] | [INFO] [stdout] 188 | seqs: &'a Vec<(&'a str, &'a str)>, [INFO] [stdout] | ^^ ^^ ^^ these lifetimes flow to the output [INFO] [stdout] | | | [INFO] [stdout] | | these lifetimes flow to the output [INFO] [stdout] | these lifetimes flow to the output [INFO] [stdout] 189 | ) -> Option> { [INFO] [stdout] | ------- the lifetime gets resolved as `'a` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: one option is to consistently use `'a` [INFO] [stdout] | [INFO] [stdout] 189 | ) -> Option>> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.13s [INFO] running `Command { std: "docker" "inspect" "e04bb95eafb7c998ddb62222e3db5a893c2e960c5d7392d19cdc947013b1654e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e04bb95eafb7c998ddb62222e3db5a893c2e960c5d7392d19cdc947013b1654e", kill_on_drop: false }` [INFO] [stdout] e04bb95eafb7c998ddb62222e3db5a893c2e960c5d7392d19cdc947013b1654e