[INFO] fetching crate syn_str 0.1.58... [INFO] checking syn_str-0.1.58 against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170 [INFO] extracting crate syn_str 0.1.58 into /workspace/builds/worker-3-tc1/source [INFO] started tweaking crates.io crate syn_str 0.1.58 [INFO] finished tweaking crates.io crate syn_str 0.1.58 [INFO] tweaked toml for crates.io crate syn_str 0.1.58 written to /workspace/builds/worker-3-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate syn_str 0.1.58 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] [stderr] Updating crates.io index [INFO] [stderr] Locking 13 packages to latest compatible versions [INFO] [stderr] Adding fixed_len_str v0.2.9 (available: v0.3.3) [INFO] [stderr] Adding pretty_assertions v0.6.1 (available: v1.4.1) [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] [stderr] Downloading crates ... [INFO] [stderr] Downloaded fixed_len_str v0.2.9 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 4d0c80c4515372ed0f7cc25ddeb33d64600a1c39cf9abb3926c67122b89beda8 [INFO] running `Command { std: "docker" "start" "-a" "4d0c80c4515372ed0f7cc25ddeb33d64600a1c39cf9abb3926c67122b89beda8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "4d0c80c4515372ed0f7cc25ddeb33d64600a1c39cf9abb3926c67122b89beda8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4d0c80c4515372ed0f7cc25ddeb33d64600a1c39cf9abb3926c67122b89beda8", kill_on_drop: false }` [INFO] [stdout] 4d0c80c4515372ed0f7cc25ddeb33d64600a1c39cf9abb3926c67122b89beda8 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 2b13d075f43b81b5361c0adc13c265684d93bf235719c8511d0bdc2d1cd80f5b [INFO] running `Command { std: "docker" "start" "-a" "2b13d075f43b81b5361c0adc13c265684d93bf235719c8511d0bdc2d1cd80f5b", kill_on_drop: false }` [INFO] [stderr] Compiling fixed_len_str v0.2.9 [INFO] [stderr] Checking ansi_term v0.11.0 [INFO] [stderr] Checking difference v2.0.0 [INFO] [stderr] Checking pretty_assertions v0.6.1 [INFO] [stderr] Checking syn_str v0.1.58 (/opt/rustwide/workdir) [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/custom_types.rs:55:35 [INFO] [stdout] | [INFO] [stdout] 55 | pub(crate) fn get_generics(mut e: &str) -> Result, &'static str> { [INFO] [stdout] | ^^^^ ------- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 55 | pub(crate) fn get_generics(mut e: &str) -> Result>, &'static str> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing [INFO] [stdout] --> src/custom_types.rs:108:19 [INFO] [stdout] | [INFO] [stdout] 108 | for s in e.clone().split(|c: char| { [INFO] [stdout] | ^^^^^^^^ help: remove this redundant 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: `#[warn(noop_method_call)]` 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/custom_types.rs:319:17 [INFO] [stdout] | [INFO] [stdout] 319 | fn generics(&self) -> &Vec; [INFO] [stdout] | ^^^^^ ------------- [INFO] [stdout] | | | | [INFO] [stdout] | | | the lifetimes get resolved as `'_` [INFO] [stdout] | | the lifetimes get resolved as `'_` [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 319 | fn generics(&self) -> &Vec>; [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/custom_types.rs:702:17 [INFO] [stdout] | [INFO] [stdout] 702 | fn generics(&self) -> &Vec { [INFO] [stdout] | ^^^^^ ------------- [INFO] [stdout] | | | | [INFO] [stdout] | | | the lifetimes get resolved as `'_` [INFO] [stdout] | | the lifetimes get resolved as `'_` [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 702 | fn generics(&self) -> &Vec> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/custom_types.rs:1375:17 [INFO] [stdout] | [INFO] [stdout] 1375 | fn generics(&self) -> &Vec { [INFO] [stdout] | ^^^^^ ------------- [INFO] [stdout] | | | | [INFO] [stdout] | | | the lifetimes get resolved as `'_` [INFO] [stdout] | | the lifetimes get resolved as `'_` [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 1375 | fn generics(&self) -> &Vec> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/custom_types.rs:1650:17 [INFO] [stdout] | [INFO] [stdout] 1650 | fn generics(&self) -> &Vec { [INFO] [stdout] | ^^^^^ ------------- [INFO] [stdout] | | | | [INFO] [stdout] | | | the lifetimes get resolved as `'_` [INFO] [stdout] | | the lifetimes get resolved as `'_` [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 1650 | fn generics(&self) -> &Vec> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/custom_types.rs:1719:20 [INFO] [stdout] | [INFO] [stdout] 1719 | pub fn resolve(&self, concrete: &'a str) -> Cow { [INFO] [stdout] | ^^^^^ -------- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 1719 | pub fn resolve(&self, concrete: &'a str) -> Cow<'_, str> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/custom_types.rs:55:35 [INFO] [stdout] | [INFO] [stdout] 55 | pub(crate) fn get_generics(mut e: &str) -> Result, &'static str> { [INFO] [stdout] | ^^^^ ------- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 55 | pub(crate) fn get_generics(mut e: &str) -> Result>, &'static str> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing [INFO] [stdout] --> src/custom_types.rs:108:19 [INFO] [stdout] | [INFO] [stdout] 108 | for s in e.clone().split(|c: char| { [INFO] [stdout] | ^^^^^^^^ help: remove this redundant 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: `#[warn(noop_method_call)]` 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/custom_types.rs:319:17 [INFO] [stdout] | [INFO] [stdout] 319 | fn generics(&self) -> &Vec; [INFO] [stdout] | ^^^^^ ------------- [INFO] [stdout] | | | | [INFO] [stdout] | | | the lifetimes get resolved as `'_` [INFO] [stdout] | | the lifetimes get resolved as `'_` [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 319 | fn generics(&self) -> &Vec>; [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/custom_types.rs:702:17 [INFO] [stdout] | [INFO] [stdout] 702 | fn generics(&self) -> &Vec { [INFO] [stdout] | ^^^^^ ------------- [INFO] [stdout] | | | | [INFO] [stdout] | | | the lifetimes get resolved as `'_` [INFO] [stdout] | | the lifetimes get resolved as `'_` [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 702 | fn generics(&self) -> &Vec> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/custom_types.rs:1375:17 [INFO] [stdout] | [INFO] [stdout] 1375 | fn generics(&self) -> &Vec { [INFO] [stdout] | ^^^^^ ------------- [INFO] [stdout] | | | | [INFO] [stdout] | | | the lifetimes get resolved as `'_` [INFO] [stdout] | | the lifetimes get resolved as `'_` [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 1375 | fn generics(&self) -> &Vec> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/custom_types.rs:1650:17 [INFO] [stdout] | [INFO] [stdout] 1650 | fn generics(&self) -> &Vec { [INFO] [stdout] | ^^^^^ ------------- [INFO] [stdout] | | | | [INFO] [stdout] | | | the lifetimes get resolved as `'_` [INFO] [stdout] | | the lifetimes get resolved as `'_` [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 1650 | fn generics(&self) -> &Vec> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/custom_types.rs:1719:20 [INFO] [stdout] | [INFO] [stdout] 1719 | pub fn resolve(&self, concrete: &'a str) -> Cow { [INFO] [stdout] | ^^^^^ -------- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 1719 | pub fn resolve(&self, concrete: &'a str) -> Cow<'_, str> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.48s [INFO] running `Command { std: "docker" "inspect" "2b13d075f43b81b5361c0adc13c265684d93bf235719c8511d0bdc2d1cd80f5b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2b13d075f43b81b5361c0adc13c265684d93bf235719c8511d0bdc2d1cd80f5b", kill_on_drop: false }` [INFO] [stdout] 2b13d075f43b81b5361c0adc13c265684d93bf235719c8511d0bdc2d1cd80f5b