[INFO] fetching crate utf8conv 0.1.0...
[INFO] checking utf8conv-0.1.0 against try#a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d for pr-145342-1
[INFO] extracting crate utf8conv 0.1.0 into /workspace/builds/worker-6-tc2/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-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate utf8conv 0.1.0 on toolchain a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "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" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f1031ffe4a00713ecc9a4b6380b592c29251e61259df093b7a69636da6b672c2
[INFO] running `Command { std: "docker" "start" "-a" "f1031ffe4a00713ecc9a4b6380b592c29251e61259df093b7a69636da6b672c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f1031ffe4a00713ecc9a4b6380b592c29251e61259df093b7a69636da6b672c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1031ffe4a00713ecc9a4b6380b592c29251e61259df093b7a69636da6b672c2", kill_on_drop: false }`
[INFO] [stdout] f1031ffe4a00713ecc9a4b6380b592c29251e61259df093b7a69636da6b672c2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d42a2c198980041bf225396b09d00c652ee75d8a7164c3b7352cca13c53d410b
[INFO] running `Command { std: "docker" "start" "-a" "d42a2c198980041bf225396b09d00c652ee75d8a7164c3b7352cca13c53d410b", 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 <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> 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 <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> 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 <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is 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<Item = u8>)
[INFO] [stdout]      |                                        ^^                  ^^ the lifetime is named here
[INFO] [stdout]      |                                        |
[INFO] [stdout]      |                                        the lifetime is named here
[INFO] [stdout] 1226 |     -> Utf8IterToCharIter {
[INFO] [stdout]      |        ------------------ the same lifetime is hidden here
[INFO] [stdout]      |
[INFO] [stdout]      = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]      = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: consistently use `'d`
[INFO] [stdout]      |
[INFO] [stdout] 1226 |     -> Utf8IterToCharIter<'d> {
[INFO] [stdout]      |                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is 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<Item = &'d u8>)
[INFO] [stdout]      |                                            ^^                  ^^                          ^^ the lifetime is named here
[INFO] [stdout]      |                                            |                   |
[INFO] [stdout]      |                                            |                   the lifetime is named here
[INFO] [stdout]      |                                            the lifetime is named here
[INFO] [stdout] 1236 |     -> Utf8RefIterToCharIter {
[INFO] [stdout]      |        --------------------- the same lifetime is hidden here
[INFO] [stdout]      |
[INFO] [stdout]      = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: consistently use `'d`
[INFO] [stdout]      |
[INFO] [stdout] 1236 |     -> Utf8RefIterToCharIter<'d> {
[INFO] [stdout]      |                             ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is 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<Item = u32>)
[INFO] [stdout]      |                                         ^^                  ^^ the lifetime is named here
[INFO] [stdout]      |                                         |
[INFO] [stdout]      |                                         the lifetime is named here
[INFO] [stdout] 1389 |     -> Utf32IterToUtf8Iter {
[INFO] [stdout]      |        ------------------- the same lifetime is hidden here
[INFO] [stdout]      |
[INFO] [stdout]      = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: consistently use `'d`
[INFO] [stdout]      |
[INFO] [stdout] 1389 |     -> Utf32IterToUtf8Iter<'d> {
[INFO] [stdout]      |                           ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is 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<Item = &'d char>)
[INFO] [stdout]      |                                            ^^                  ^^                          ^^ the lifetime is named here
[INFO] [stdout]      |                                            |                   |
[INFO] [stdout]      |                                            |                   the lifetime is named here
[INFO] [stdout]      |                                            the lifetime is named here
[INFO] [stdout] 1399 |     -> CharRefIterToUtf8Iter {
[INFO] [stdout]      |        --------------------- the same lifetime is hidden here
[INFO] [stdout]      |
[INFO] [stdout]      = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: consistently use `'d`
[INFO] [stdout]      |
[INFO] [stdout] 1399 |     -> CharRefIterToUtf8Iter<'d> {
[INFO] [stdout]      |                             ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking rand v0.8.5
[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 <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> 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 <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> 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 <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is 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<Item = u8>)
[INFO] [stdout]      |                                        ^^                  ^^ the lifetime is named here
[INFO] [stdout]      |                                        |
[INFO] [stdout]      |                                        the lifetime is named here
[INFO] [stdout] 1226 |     -> Utf8IterToCharIter {
[INFO] [stdout]      |        ------------------ the same lifetime is hidden here
[INFO] [stdout]      |
[INFO] [stdout]      = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]      = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: consistently use `'d`
[INFO] [stdout]      |
[INFO] [stdout] 1226 |     -> Utf8IterToCharIter<'d> {
[INFO] [stdout]      |                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is 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<Item = &'d u8>)
[INFO] [stdout]      |                                            ^^                  ^^                          ^^ the lifetime is named here
[INFO] [stdout]      |                                            |                   |
[INFO] [stdout]      |                                            |                   the lifetime is named here
[INFO] [stdout]      |                                            the lifetime is named here
[INFO] [stdout] 1236 |     -> Utf8RefIterToCharIter {
[INFO] [stdout]      |        --------------------- the same lifetime is hidden here
[INFO] [stdout]      |
[INFO] [stdout]      = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: consistently use `'d`
[INFO] [stdout]      |
[INFO] [stdout] 1236 |     -> Utf8RefIterToCharIter<'d> {
[INFO] [stdout]      |                             ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is 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<Item = u32>)
[INFO] [stdout]      |                                         ^^                  ^^ the lifetime is named here
[INFO] [stdout]      |                                         |
[INFO] [stdout]      |                                         the lifetime is named here
[INFO] [stdout] 1389 |     -> Utf32IterToUtf8Iter {
[INFO] [stdout]      |        ------------------- the same lifetime is hidden here
[INFO] [stdout]      |
[INFO] [stdout]      = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: consistently use `'d`
[INFO] [stdout]      |
[INFO] [stdout] 1389 |     -> Utf32IterToUtf8Iter<'d> {
[INFO] [stdout]      |                           ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is 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<Item = &'d char>)
[INFO] [stdout]      |                                            ^^                  ^^                          ^^ the lifetime is named here
[INFO] [stdout]      |                                            |                   |
[INFO] [stdout]      |                                            |                   the lifetime is named here
[INFO] [stdout]      |                                            the lifetime is named here
[INFO] [stdout] 1399 |     -> CharRefIterToUtf8Iter {
[INFO] [stdout]      |        --------------------- the same lifetime is hidden here
[INFO] [stdout]      |
[INFO] [stdout]      = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: 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 1.58s
[INFO] running `Command { std: "docker" "inspect" "d42a2c198980041bf225396b09d00c652ee75d8a7164c3b7352cca13c53d410b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d42a2c198980041bf225396b09d00c652ee75d8a7164c3b7352cca13c53d410b", kill_on_drop: false }`
[INFO] [stdout] d42a2c198980041bf225396b09d00c652ee75d8a7164c3b7352cca13c53d410b