[INFO] fetching crate utf16string 0.2.0...
[INFO] checking utf16string-0.2.0 against 1.95.0 for pr-155915
[INFO] extracting crate utf16string 0.2.0 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate utf16string 0.2.0
[INFO] finished tweaking crates.io crate utf16string 0.2.0
[INFO] tweaked toml for crates.io crate utf16string 0.2.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate utf16string 0.2.0 on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "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" "+1.95.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 1 package to latest compatible version
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5de7db6379c44770c1c187fe54a6c9ad6a8dbf64f145d05abd28dc2042641d57
[INFO] running `Command { std: "docker" "start" "-a" "5de7db6379c44770c1c187fe54a6c9ad6a8dbf64f145d05abd28dc2042641d57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5de7db6379c44770c1c187fe54a6c9ad6a8dbf64f145d05abd28dc2042641d57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5de7db6379c44770c1c187fe54a6c9ad6a8dbf64f145d05abd28dc2042641d57", kill_on_drop: false }`
[INFO] [stdout] 5de7db6379c44770c1c187fe54a6c9ad6a8dbf64f145d05abd28dc2042641d57
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 96ad77e042b7871bb828f6895f30f0e08ec130859eb2b0e62992f3c74d00f08c
[INFO] running `Command { std: "docker" "start" "-a" "96ad77e042b7871bb828f6895f30f0e08ec130859eb2b0e62992f3c74d00f08c", kill_on_drop: false }`
[INFO] [stderr]     Checking utf16string v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]    --> src/iters.rs:113:58
[INFO] [stdout]     |
[INFO] [stdout] 113 |         let pos = self.index + self.chars.chunks.len() * std::mem::size_of::<u16>();
[INFO] [stdout]     |                                                          ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:73:5
[INFO] [stdout]     |
[INFO] [stdout]  73 |     unused_qualifications
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]     |
[INFO] [stdout] 113 -         let pos = self.index + self.chars.chunks.len() * std::mem::size_of::<u16>();
[INFO] [stdout] 113 +         let pos = self.index + self.chars.chunks.len() * size_of::<u16>();
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]   --> src/utf16.rs:68:39
[INFO] [stdout]    |
[INFO] [stdout] 68 |     let mut chunks = raw.chunks_exact(std::mem::size_of::<u16>());
[INFO] [stdout]    |                                       ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]    |
[INFO] [stdout] 68 -     let mut chunks = raw.chunks_exact(std::mem::size_of::<u16>());
[INFO] [stdout] 68 +     let mut chunks = raw.chunks_exact(size_of::<u16>());
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]   --> src/utf16.rs:77:33
[INFO] [stdout]    |
[INFO] [stdout] 77 |                 error_len: Some(std::mem::size_of::<u16>() as u8),
[INFO] [stdout]    |                                 ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]    |
[INFO] [stdout] 77 -                 error_len: Some(std::mem::size_of::<u16>() as u8),
[INFO] [stdout] 77 +                 error_len: Some(size_of::<u16>() as u8),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]   --> src/utf16.rs:87:45
[INFO] [stdout]    |
[INFO] [stdout] 87 | ...                   error_len: Some(std::mem::size_of::<u16>() as u8),
[INFO] [stdout]    |                                       ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]    |
[INFO] [stdout] 87 -                             error_len: Some(std::mem::size_of::<u16>() as u8),
[INFO] [stdout] 87 +                             error_len: Some(size_of::<u16>() as u8),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]    --> src/utf16.rs:257:36
[INFO] [stdout]     |
[INFO] [stdout] 257 |         let l1 = 'c'.len_utf16() * std::mem::size_of::<u16>();
[INFO] [stdout]     |                                    ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]     |
[INFO] [stdout] 257 -         let l1 = 'c'.len_utf16() * std::mem::size_of::<u16>();
[INFO] [stdout] 257 +         let l1 = 'c'.len_utf16() * size_of::<u16>();
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]    --> src/utf16.rs:262:44
[INFO] [stdout]     |
[INFO] [stdout] 262 |         let l1 = '\u{10000}'.len_utf16() * std::mem::size_of::<u16>();
[INFO] [stdout]     |                                            ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]     |
[INFO] [stdout] 262 -         let l1 = '\u{10000}'.len_utf16() * std::mem::size_of::<u16>();
[INFO] [stdout] 262 +         let l1 = '\u{10000}'.len_utf16() * size_of::<u16>();
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]    --> src/iters.rs:113:58
[INFO] [stdout]     |
[INFO] [stdout] 113 |         let pos = self.index + self.chars.chunks.len() * std::mem::size_of::<u16>();
[INFO] [stdout]     |                                                          ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:73:5
[INFO] [stdout]     |
[INFO] [stdout]  73 |     unused_qualifications
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]     |
[INFO] [stdout] 113 -         let pos = self.index + self.chars.chunks.len() * std::mem::size_of::<u16>();
[INFO] [stdout] 113 +         let pos = self.index + self.chars.chunks.len() * size_of::<u16>();
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]   --> src/utf16.rs:68:39
[INFO] [stdout]    |
[INFO] [stdout] 68 |     let mut chunks = raw.chunks_exact(std::mem::size_of::<u16>());
[INFO] [stdout]    |                                       ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]    |
[INFO] [stdout] 68 -     let mut chunks = raw.chunks_exact(std::mem::size_of::<u16>());
[INFO] [stdout] 68 +     let mut chunks = raw.chunks_exact(size_of::<u16>());
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]   --> src/utf16.rs:77:33
[INFO] [stdout]    |
[INFO] [stdout] 77 |                 error_len: Some(std::mem::size_of::<u16>() as u8),
[INFO] [stdout]    |                                 ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]    |
[INFO] [stdout] 77 -                 error_len: Some(std::mem::size_of::<u16>() as u8),
[INFO] [stdout] 77 +                 error_len: Some(size_of::<u16>() as u8),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]   --> src/utf16.rs:87:45
[INFO] [stdout]    |
[INFO] [stdout] 87 | ...                   error_len: Some(std::mem::size_of::<u16>() as u8),
[INFO] [stdout]    |                                       ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]    |
[INFO] [stdout] 87 -                             error_len: Some(std::mem::size_of::<u16>() as u8),
[INFO] [stdout] 87 +                             error_len: Some(size_of::<u16>() as u8),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/wstr.rs:264:18
[INFO] [stdout]     |
[INFO] [stdout] 264 |     pub fn chars(&self) -> WStrChars<E> {
[INFO] [stdout]     |                  ^^^^^     ^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  the lifetime is elided 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: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 264 |     pub fn chars(&self) -> WStrChars<'_, E> {
[INFO] [stdout]     |                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/wstr.rs:273:25
[INFO] [stdout]     |
[INFO] [stdout] 273 |     pub fn char_indices(&self) -> WStrCharIndices<E> {
[INFO] [stdout]     |                         ^^^^^     ^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 273 |     pub fn char_indices(&self) -> WStrCharIndices<'_, E> {
[INFO] [stdout]     |                                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> benches/encode_char.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(test)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/wstr.rs:264:18
[INFO] [stdout]     |
[INFO] [stdout] 264 |     pub fn chars(&self) -> WStrChars<E> {
[INFO] [stdout]     |                  ^^^^^     ^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  the lifetime is elided 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: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 264 |     pub fn chars(&self) -> WStrChars<'_, E> {
[INFO] [stdout]     |                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/wstr.rs:273:25
[INFO] [stdout]     |
[INFO] [stdout] 273 |     pub fn char_indices(&self) -> WStrCharIndices<E> {
[INFO] [stdout]     |                         ^^^^^     ^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 273 |     pub fn char_indices(&self) -> WStrCharIndices<'_, E> {
[INFO] [stdout]     |                                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `utf16string` (bench "encode_char") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "96ad77e042b7871bb828f6895f30f0e08ec130859eb2b0e62992f3c74d00f08c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "96ad77e042b7871bb828f6895f30f0e08ec130859eb2b0e62992f3c74d00f08c", kill_on_drop: false }`
[INFO] [stdout] 96ad77e042b7871bb828f6895f30f0e08ec130859eb2b0e62992f3c74d00f08c
