[INFO] cloning repository https://github.com/RustyYato/double-buffer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/RustyYato/double-buffer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRustyYato%2Fdouble-buffer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRustyYato%2Fdouble-buffer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b3ee50e221e71aec30924adbbb57c0cf3f4472a4
[INFO] checking RustyYato/double-buffer against master#642c19bfc3a5c1de985bf5d0cc8207ac9d22708a for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRustyYato%2Fdouble-buffer" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/RustyYato/double-buffer
[INFO] finished tweaking git repo https://github.com/RustyYato/double-buffer
[INFO] tweaked toml for git repo https://github.com/RustyYato/double-buffer written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/RustyYato/double-buffer on toolchain 642c19bfc3a5c1de985bf5d0cc8207ac9d22708a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/RustyYato/double-buffer 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" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pollster-macro v0.4.0
[INFO] [stderr]   Downloaded generator v0.8.1
[INFO] [stderr]   Downloaded triomphe v0.1.11
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d3f3c6f610c346923ab603ba4f287d96c3c20548fd1053877f51cd5d485e5302
[INFO] running `Command { std: "docker" "start" "-a" "d3f3c6f610c346923ab603ba4f287d96c3c20548fd1053877f51cd5d485e5302", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d3f3c6f610c346923ab603ba4f287d96c3c20548fd1053877f51cd5d485e5302", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3f3c6f610c346923ab603ba4f287d96c3c20548fd1053877f51cd5d485e5302", kill_on_drop: false }`
[INFO] [stdout] d3f3c6f610c346923ab603ba4f287d96c3c20548fd1053877f51cd5d485e5302
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5c969039b72c1fdac51fc7203aa09ad7f3a962c9be0497784fb7e6b11d6eda15
[INFO] running `Command { std: "docker" "start" "-a" "5c969039b72c1fdac51fc7203aa09ad7f3a962c9be0497784fb7e6b11d6eda15", kill_on_drop: false }`
[INFO] [stderr]    Compiling const_fn v0.4.10
[INFO] [stderr]     Checking rc-box v1.2.0
[INFO] [stderr]     Checking triomphe v0.1.11
[INFO] [stderr]     Checking split-arc v0.1.0 (/opt/rustwide/workdir/split-arc)
[INFO] [stderr]     Checking hashbrown v0.15.2
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling syn v2.0.63
[INFO] [stderr]     Checking dbuf v0.1.0 (/opt/rustwide/workdir/dbuf)
[INFO] [stdout] warning: function `test_send_sync` is never used
[INFO] [stdout]   --> dbuf/src/raw.rs:49:14
[INFO] [stdout]    |
[INFO] [stdout] 49 |     const fn test_send_sync<T: Send, U: Sync>() {
[INFO] [stdout]    |              ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> dbuf/src/raw/writer.rs:64:18
[INFO] [stdout]    |
[INFO] [stdout] 64 |     pub fn split(&self) -> Split<P::Buffer, P::Extras> {
[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] 64 |     pub fn split(&self) -> Split<'_, P::Buffer, P::Extras> {
[INFO] [stdout]    |                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> dbuf/src/raw/writer.rs:86:22
[INFO] [stdout]    |
[INFO] [stdout] 86 |     pub fn split_mut(&mut self) -> SplitMut<P::Buffer, P::Extras> {
[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] 86 |     pub fn split_mut(&mut self) -> SplitMut<'_, P::Buffer, P::Extras> {
[INFO] [stdout]    |                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking chmap v0.1.0 (/opt/rustwide/workdir/chmap)
[INFO] [stderr]    Compiling pollster-macro v0.4.0
[INFO] [stderr]     Checking pollster v0.4.0
[INFO] [stdout] warning: function `test_send_sync` is never used
[INFO] [stdout]   --> dbuf/src/raw.rs:49:14
[INFO] [stdout]    |
[INFO] [stdout] 49 |     const fn test_send_sync<T: Send, U: Sync>() {
[INFO] [stdout]    |              ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> dbuf/src/raw/writer.rs:64:18
[INFO] [stdout]    |
[INFO] [stdout] 64 |     pub fn split(&self) -> Split<P::Buffer, P::Extras> {
[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] 64 |     pub fn split(&self) -> Split<'_, P::Buffer, P::Extras> {
[INFO] [stdout]    |                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> dbuf/src/raw/writer.rs:86:22
[INFO] [stdout]    |
[INFO] [stdout] 86 |     pub fn split_mut(&mut self) -> SplitMut<P::Buffer, P::Extras> {
[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] 86 |     pub fn split_mut(&mut self) -> SplitMut<'_, P::Buffer, P::Extras> {
[INFO] [stdout]    |                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.19s
[INFO] running `Command { std: "docker" "inspect" "5c969039b72c1fdac51fc7203aa09ad7f3a962c9be0497784fb7e6b11d6eda15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c969039b72c1fdac51fc7203aa09ad7f3a962c9be0497784fb7e6b11d6eda15", kill_on_drop: false }`
[INFO] [stdout] 5c969039b72c1fdac51fc7203aa09ad7f3a962c9be0497784fb7e6b11d6eda15