[INFO] fetching crate monofs 0.2.1...
[INFO] checking monofs-0.2.1 against a5689b034ad287112f709693384a37f1377eb9cc for pr-129249-3
[INFO] extracting crate monofs 0.2.1 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate monofs 0.2.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate monofs 0.2.1
[INFO] tweaked toml for crates.io crate monofs 0.2.1 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate monofs 0.2.1 on toolchain a5689b034ad287112f709693384a37f1377eb9cc
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a5689b034ad287112f709693384a37f1377eb9cc" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate monofs 0.2.1 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" "+a5689b034ad287112f709693384a37f1377eb9cc" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 887d376c84b5dbcc4dde4b7a983365eda29db04196dbffa7ccc4c6911f51d1ff
[INFO] running `Command { std: "docker" "start" "887d376c84b5dbcc4dde4b7a983365eda29db04196dbffa7ccc4c6911f51d1ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "887d376c84b5dbcc4dde4b7a983365eda29db04196dbffa7ccc4c6911f51d1ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "887d376c84b5dbcc4dde4b7a983365eda29db04196dbffa7ccc4c6911f51d1ff" "/opt/rustwide/cargo-home/bin/cargo" "+a5689b034ad287112f709693384a37f1377eb9cc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "887d376c84b5dbcc4dde4b7a983365eda29db04196dbffa7ccc4c6911f51d1ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "887d376c84b5dbcc4dde4b7a983365eda29db04196dbffa7ccc4c6911f51d1ff" "/opt/rustwide/cargo-home/bin/cargo" "+a5689b034ad287112f709693384a37f1377eb9cc" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.87
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[INFO] [stderr]     Checking monofs v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: useless conversion to the same type: `CidGeneric<64>`
[INFO] [stdout]   --> lib/filesystem/file/io.rs:70:23
[INFO] [stdout]    |
[INFO] [stdout] 70 |             let cid = store.put_bytes(&self.buffer[..]).await.map(Into::into)?;
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]    = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]    |
[INFO] [stdout] 70 -             let cid = store.put_bytes(&self.buffer[..]).await.map(Into::into)?;
[INFO] [stdout] 70 +             let cid = store.put_bytes(&self.buffer[..]).await?;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> lib/filesystem/dir/find.rs:79:35
[INFO] [stdout]    |
[INFO] [stdout] 79 | pub async fn find_dir<S>(mut dir: &Dir<S>, path: impl AsRef<str>) -> FsResult<FindResultDir<S>>
[INFO] [stdout]    |                                   ^^^^^^^ the lifetime is elided here         ^^^^^^^^^^^^^^^^ 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: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 79 | pub async fn find_dir<S>(mut dir: &Dir<S>, path: impl AsRef<str>) -> FsResult<FindResultDir<'_, S>>
[INFO] [stdout]    |                                                                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> lib/filesystem/dir/find.rs:153:14
[INFO] [stdout]     |
[INFO] [stdout] 153 |     mut dir: &mut Dir<S>,
[INFO] [stdout]     |              ^^^^^^^^^^^ the lifetime is elided here
[INFO] [stdout] 154 |     path: impl AsRef<str>,
[INFO] [stdout] 155 | ) -> FsResult<FindResultDirMut<S>>
[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: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 155 | ) -> FsResult<FindResultDirMut<'_, S>>
[INFO] [stdout]     |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `monofs` (lib) due to 1 previous error; 2 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: useless conversion to the same type: `CidGeneric<64>`
[INFO] [stdout]   --> lib/filesystem/file/io.rs:70:23
[INFO] [stdout]    |
[INFO] [stdout] 70 |             let cid = store.put_bytes(&self.buffer[..]).await.map(Into::into)?;
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]    = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]    |
[INFO] [stdout] 70 -             let cid = store.put_bytes(&self.buffer[..]).await.map(Into::into)?;
[INFO] [stdout] 70 +             let cid = store.put_bytes(&self.buffer[..]).await?;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> lib/filesystem/dir/find.rs:79:35
[INFO] [stdout]    |
[INFO] [stdout] 79 | pub async fn find_dir<S>(mut dir: &Dir<S>, path: impl AsRef<str>) -> FsResult<FindResultDir<S>>
[INFO] [stdout]    |                                   ^^^^^^^ the lifetime is elided here         ^^^^^^^^^^^^^^^^ 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: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 79 | pub async fn find_dir<S>(mut dir: &Dir<S>, path: impl AsRef<str>) -> FsResult<FindResultDir<'_, S>>
[INFO] [stdout]    |                                                                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> lib/filesystem/dir/find.rs:153:14
[INFO] [stdout]     |
[INFO] [stdout] 153 |     mut dir: &mut Dir<S>,
[INFO] [stdout]     |              ^^^^^^^^^^^ the lifetime is elided here
[INFO] [stdout] 154 |     path: impl AsRef<str>,
[INFO] [stdout] 155 | ) -> FsResult<FindResultDirMut<S>>
[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: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 155 | ) -> FsResult<FindResultDirMut<'_, S>>
[INFO] [stdout]     |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `monofs` (lib test) due to 1 previous error; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "887d376c84b5dbcc4dde4b7a983365eda29db04196dbffa7ccc4c6911f51d1ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "887d376c84b5dbcc4dde4b7a983365eda29db04196dbffa7ccc4c6911f51d1ff", kill_on_drop: false }`
[INFO] [stdout] 887d376c84b5dbcc4dde4b7a983365eda29db04196dbffa7ccc4c6911f51d1ff
