[INFO] fetching crate utf8conv 0.1.0... [INFO] checking utf8conv-0.1.0 against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170 [INFO] extracting crate utf8conv 0.1.0 into /workspace/builds/worker-6-tc1/source [INFO] started tweaking crates.io crate utf8conv 0.1.0 [INFO] removed 0 missing examples [INFO] finished tweaking crates.io crate utf8conv 0.1.0 [INFO] tweaked toml for crates.io crate utf8conv 0.1.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate utf8conv 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] crate crates.io crate utf8conv 0.1.0 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" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded stackfmt v0.1.2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] f1a11e6f29a637b69a2ad6423ffdc0ab68cada4e00bf7fe2c8fd6c3b1ed81ae6 [INFO] running `Command { std: "docker" "start" "-a" "f1a11e6f29a637b69a2ad6423ffdc0ab68cada4e00bf7fe2c8fd6c3b1ed81ae6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "f1a11e6f29a637b69a2ad6423ffdc0ab68cada4e00bf7fe2c8fd6c3b1ed81ae6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f1a11e6f29a637b69a2ad6423ffdc0ab68cada4e00bf7fe2c8fd6c3b1ed81ae6", kill_on_drop: false }` [INFO] [stdout] f1a11e6f29a637b69a2ad6423ffdc0ab68cada4e00bf7fe2c8fd6c3b1ed81ae6 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] fc7a79d8aace397ed4295977a6ce7970a23f82204e76dada86fa4e81f12568a8 [INFO] running `Command { std: "docker" "start" "-a" "fc7a79d8aace397ed4295977a6ce7970a23f82204e76dada86fa4e81f12568a8", kill_on_drop: false }` [INFO] [stderr] Compiling doc-comment v0.3.3 [INFO] [stderr] Checking rand_core v0.6.3 [INFO] [stderr] Checking stackfmt v0.1.2 [INFO] [stderr] Checking utf8conv v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unexpected `cfg` condition name: `nightly` [INFO] [stdout] --> src/utf8conv.rs:55:12 [INFO] [stdout] | [INFO] [stdout] 55 | #[cfg_attr(nightly, warn(rustdoc::missing_doc_code_examples))] [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: expected names are: `docsrs`, `feature`, and `test` and 31 more [INFO] [stdout] = help: consider using a Cargo feature instead [INFO] [stdout] = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint: [INFO] [stdout] [lints.rust] [INFO] [stdout] unexpected_cfgs = { level = "warn", check-cfg = ['cfg(nightly)'] } [INFO] [stdout] = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(nightly)");` to the top of the `build.rs` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] = note: `#[warn(unexpected_cfgs)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unexpected `cfg` condition name: `nightly` [INFO] [stdout] --> src/utf8conv.rs:67:12 [INFO] [stdout] | [INFO] [stdout] 67 | #[cfg_attr(nightly, warn(rustdoc::missing_doc_code_examples))] [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: consider using a Cargo feature instead [INFO] [stdout] = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint: [INFO] [stdout] [lints.rust] [INFO] [stdout] unexpected_cfgs = { level = "warn", check-cfg = ['cfg(nightly)'] } [INFO] [stdout] = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(nightly)");` to the top of the `build.rs` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unexpected `cfg` condition name: `nightly` [INFO] [stdout] --> src/utf8conv.rs:88:12 [INFO] [stdout] | [INFO] [stdout] 88 | #[cfg_attr(nightly, warn(rustdoc::missing_doc_code_examples))] [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: consider using a Cargo feature instead [INFO] [stdout] = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint: [INFO] [stdout] [lints.rust] [INFO] [stdout] unexpected_cfgs = { level = "warn", check-cfg = ['cfg(nightly)'] } [INFO] [stdout] = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(nightly)");` to the top of the `build.rs` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking rand v0.8.5 [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/utf8conv.rs:1225:40 [INFO] [stdout] | [INFO] [stdout] 1225 | pub fn utf8_to_char_with_iter<'d>(&'d mut self, iter: &'d mut dyn Iterator) [INFO] [stdout] | ^^ ^^ these lifetimes flow to the output [INFO] [stdout] | | [INFO] [stdout] | these lifetimes flow to the output [INFO] [stdout] 1226 | -> Utf8IterToCharIter { [INFO] [stdout] | ------------------ the lifetime gets resolved as `'d` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: one option is to consistently use `'d` [INFO] [stdout] | [INFO] [stdout] 1226 | -> Utf8IterToCharIter<'d> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/utf8conv.rs:1235:44 [INFO] [stdout] | [INFO] [stdout] 1235 | pub fn utf8_ref_to_char_with_iter<'d>(&'d mut self, iter: &'d mut dyn Iterator) [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] 1236 | -> Utf8RefIterToCharIter { [INFO] [stdout] | --------------------- the lifetime gets resolved as `'d` [INFO] [stdout] | [INFO] [stdout] help: one option is to consistently use `'d` [INFO] [stdout] | [INFO] [stdout] 1236 | -> Utf8RefIterToCharIter<'d> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/utf8conv.rs:1388:41 [INFO] [stdout] | [INFO] [stdout] 1388 | pub fn utf32_to_utf8_with_iter<'d>(&'d mut self, iter: &'d mut dyn Iterator) [INFO] [stdout] | ^^ ^^ these lifetimes flow to the output [INFO] [stdout] | | [INFO] [stdout] | these lifetimes flow to the output [INFO] [stdout] 1389 | -> Utf32IterToUtf8Iter { [INFO] [stdout] | ------------------- the lifetime gets resolved as `'d` [INFO] [stdout] | [INFO] [stdout] help: one option is to consistently use `'d` [INFO] [stdout] | [INFO] [stdout] 1389 | -> Utf32IterToUtf8Iter<'d> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/utf8conv.rs:1398:44 [INFO] [stdout] | [INFO] [stdout] 1398 | pub fn char_ref_to_utf8_with_iter<'d>(&'d mut self, iter: &'d mut dyn Iterator) [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] 1399 | -> CharRefIterToUtf8Iter { [INFO] [stdout] | --------------------- the lifetime gets resolved as `'d` [INFO] [stdout] | [INFO] [stdout] help: one option is to consistently use `'d` [INFO] [stdout] | [INFO] [stdout] 1399 | -> CharRefIterToUtf8Iter<'d> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unexpected `cfg` condition name: `nightly` [INFO] [stdout] --> src/utf8conv.rs:55:12 [INFO] [stdout] | [INFO] [stdout] 55 | #[cfg_attr(nightly, warn(rustdoc::missing_doc_code_examples))] [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: expected names are: `docsrs`, `feature`, and `test` and 31 more [INFO] [stdout] = help: consider using a Cargo feature instead [INFO] [stdout] = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint: [INFO] [stdout] [lints.rust] [INFO] [stdout] unexpected_cfgs = { level = "warn", check-cfg = ['cfg(nightly)'] } [INFO] [stdout] = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(nightly)");` to the top of the `build.rs` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] = note: `#[warn(unexpected_cfgs)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unexpected `cfg` condition name: `nightly` [INFO] [stdout] --> src/utf8conv.rs:67:12 [INFO] [stdout] | [INFO] [stdout] 67 | #[cfg_attr(nightly, warn(rustdoc::missing_doc_code_examples))] [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: consider using a Cargo feature instead [INFO] [stdout] = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint: [INFO] [stdout] [lints.rust] [INFO] [stdout] unexpected_cfgs = { level = "warn", check-cfg = ['cfg(nightly)'] } [INFO] [stdout] = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(nightly)");` to the top of the `build.rs` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unexpected `cfg` condition name: `nightly` [INFO] [stdout] --> src/utf8conv.rs:88:12 [INFO] [stdout] | [INFO] [stdout] 88 | #[cfg_attr(nightly, warn(rustdoc::missing_doc_code_examples))] [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: consider using a Cargo feature instead [INFO] [stdout] = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint: [INFO] [stdout] [lints.rust] [INFO] [stdout] unexpected_cfgs = { level = "warn", check-cfg = ['cfg(nightly)'] } [INFO] [stdout] = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(nightly)");` to the top of the `build.rs` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/utf8conv.rs:1225:40 [INFO] [stdout] | [INFO] [stdout] 1225 | pub fn utf8_to_char_with_iter<'d>(&'d mut self, iter: &'d mut dyn Iterator) [INFO] [stdout] | ^^ ^^ these lifetimes flow to the output [INFO] [stdout] | | [INFO] [stdout] | these lifetimes flow to the output [INFO] [stdout] 1226 | -> Utf8IterToCharIter { [INFO] [stdout] | ------------------ the lifetime gets resolved as `'d` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: one option is to consistently use `'d` [INFO] [stdout] | [INFO] [stdout] 1226 | -> Utf8IterToCharIter<'d> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/utf8conv.rs:1235:44 [INFO] [stdout] | [INFO] [stdout] 1235 | pub fn utf8_ref_to_char_with_iter<'d>(&'d mut self, iter: &'d mut dyn Iterator) [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] 1236 | -> Utf8RefIterToCharIter { [INFO] [stdout] | --------------------- the lifetime gets resolved as `'d` [INFO] [stdout] | [INFO] [stdout] help: one option is to consistently use `'d` [INFO] [stdout] | [INFO] [stdout] 1236 | -> Utf8RefIterToCharIter<'d> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/utf8conv.rs:1388:41 [INFO] [stdout] | [INFO] [stdout] 1388 | pub fn utf32_to_utf8_with_iter<'d>(&'d mut self, iter: &'d mut dyn Iterator) [INFO] [stdout] | ^^ ^^ these lifetimes flow to the output [INFO] [stdout] | | [INFO] [stdout] | these lifetimes flow to the output [INFO] [stdout] 1389 | -> Utf32IterToUtf8Iter { [INFO] [stdout] | ------------------- the lifetime gets resolved as `'d` [INFO] [stdout] | [INFO] [stdout] help: one option is to consistently use `'d` [INFO] [stdout] | [INFO] [stdout] 1389 | -> Utf32IterToUtf8Iter<'d> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/utf8conv.rs:1398:44 [INFO] [stdout] | [INFO] [stdout] 1398 | pub fn char_ref_to_utf8_with_iter<'d>(&'d mut self, iter: &'d mut dyn Iterator) [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] 1399 | -> CharRefIterToUtf8Iter { [INFO] [stdout] | --------------------- the lifetime gets resolved as `'d` [INFO] [stdout] | [INFO] [stdout] help: one option is to consistently use `'d` [INFO] [stdout] | [INFO] [stdout] 1399 | -> CharRefIterToUtf8Iter<'d> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.61s [INFO] running `Command { std: "docker" "inspect" "fc7a79d8aace397ed4295977a6ce7970a23f82204e76dada86fa4e81f12568a8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fc7a79d8aace397ed4295977a6ce7970a23f82204e76dada86fa4e81f12568a8", kill_on_drop: false }` [INFO] [stdout] fc7a79d8aace397ed4295977a6ce7970a23f82204e76dada86fa4e81f12568a8