[INFO] fetching crate rt_ref 0.3.0...
[INFO] checking rt_ref-0.3.0 against try#7b3da9103634dffd4f4365cfd8642427c781d99f+rustflags=-Dinherent-method-on-receiver for 152214-denied-retry-0
[INFO] extracting crate rt_ref 0.3.0 into /workspace/builds/worker-3-tc2/source
[INFO] removed /workspace/builds/worker-3-tc2/source/.cargo/config.toml
[INFO] started tweaking crates.io crate rt_ref 0.3.0
[INFO] finished tweaking crates.io crate rt_ref 0.3.0
[INFO] tweaked toml for crates.io crate rt_ref 0.3.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rt_ref 0.3.0 on toolchain 7b3da9103634dffd4f4365cfd8642427c781d99f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7b3da9103634dffd4f4365cfd8642427c781d99f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rt_ref 0.3.0 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" "+7b3da9103634dffd4f4365cfd8642427c781d99f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+7b3da9103634dffd4f4365cfd8642427c781d99f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 64f16e00fb1088f671ba6b5f4ac55bcf303550e77ffb5aa218615eee5f9e6874
[INFO] running `Command { std: "docker" "start" "-a" "64f16e00fb1088f671ba6b5f4ac55bcf303550e77ffb5aa218615eee5f9e6874", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "64f16e00fb1088f671ba6b5f4ac55bcf303550e77ffb5aa218615eee5f9e6874", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "64f16e00fb1088f671ba6b5f4ac55bcf303550e77ffb5aa218615eee5f9e6874", kill_on_drop: false }`
[INFO] [stdout] 64f16e00fb1088f671ba6b5f4ac55bcf303550e77ffb5aa218615eee5f9e6874
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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 -Dinherent-method-on-receiver" "-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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+7b3da9103634dffd4f4365cfd8642427c781d99f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ff8af3f67fc087fd37013ddd202fb3782d2851b21a0eadd2d13e28b985f3e253
[INFO] running `Command { std: "docker" "start" "-a" "ff8af3f67fc087fd37013ddd202fb3782d2851b21a0eadd2d13e28b985f3e253", kill_on_drop: false }`
[INFO] [stderr]     Checking rt_ref v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/cell.rs:48:19
[INFO] [stdout]    |
[INFO] [stdout] 48 |     pub fn borrow(&self) -> CellRef<T> {
[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] 48 |     pub fn borrow(&self) -> CellRef<'_, T> {
[INFO] [stdout]    |                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/cell.rs:63:23
[INFO] [stdout]    |
[INFO] [stdout] 63 |     pub fn try_borrow(&self) -> Result<CellRef<T>, BorrowFail> {
[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] 63 |     pub fn try_borrow(&self) -> Result<CellRef<'_, T>, BorrowFail> {
[INFO] [stdout]    |                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/cell.rs:82:23
[INFO] [stdout]    |
[INFO] [stdout] 82 |     pub fn borrow_mut(&self) -> CellRefMut<T> {
[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] 82 |     pub fn borrow_mut(&self) -> CellRefMut<'_, T> {
[INFO] [stdout]    |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/cell.rs:97:27
[INFO] [stdout]    |
[INFO] [stdout] 97 |     pub fn try_borrow_mut(&self) -> Result<CellRefMut<T>, BorrowFail> {
[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] 97 |     pub fn try_borrow_mut(&self) -> Result<CellRefMut<'_, T>, BorrowFail> {
[INFO] [stdout]    |                                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: inherent methods on types that implement `Deref` or `Receiver` shadow methods of their target
[INFO] [stdout]    --> src/cell_ref.rs:43:22
[INFO] [stdout]     |
[INFO] [stdout]  43 |       pub fn try_clone(&self) -> Result<Self, RefOverflow> {
[INFO] [stdout]     |                        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 118 | / impl<'a, T> Deref for CellRef<'a, T>
[INFO] [stdout] 119 | | where
[INFO] [stdout] 120 | |     T: ?Sized,
[INFO] [stdout]     | |______________- trait implemented here
[INFO] [stdout] 121 |   {
[INFO] [stdout] 122 |       type Target = T;
[INFO] [stdout]     |       ----------- with `Target` set here
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D inherent-method-on-receiver`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: inherent methods on types that implement `Deref` or `Receiver` shadow methods of their target
[INFO] [stdout]    --> src/cell_ref.rs:101:22
[INFO] [stdout]     |
[INFO] [stdout] 101 |       pub fn map<U, F>(self, f: F) -> CellRef<'a, U>
[INFO] [stdout]     |                        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 118 | / impl<'a, T> Deref for CellRef<'a, T>
[INFO] [stdout] 119 | | where
[INFO] [stdout] 120 | |     T: ?Sized,
[INFO] [stdout]     | |______________- trait implemented here
[INFO] [stdout] 121 |   {
[INFO] [stdout] 122 |       type Target = T;
[INFO] [stdout]     |       ----------- with `Target` set here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: inherent methods on types that implement `Deref` or `Receiver` shadow methods of their target
[INFO] [stdout]   --> src/cell_ref_mut.rs:67:22
[INFO] [stdout]    |
[INFO] [stdout] 67 |       pub fn map<U, F>(self, f: F) -> CellRefMut<'a, U>
[INFO] [stdout]    |                        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 84 | / impl<'a, T> Deref for CellRefMut<'a, T>
[INFO] [stdout] 85 | | where
[INFO] [stdout] 86 | |     T: ?Sized,
[INFO] [stdout]    | |______________- trait implemented here
[INFO] [stdout] 87 |   {
[INFO] [stdout] 88 |       type Target = T;
[INFO] [stdout]    |       ----------- with `Target` set here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: inherent methods on types that implement `Deref` or `Receiver` shadow methods of their target
[INFO] [stdout]   --> src/ref.rs:34:22
[INFO] [stdout]    |
[INFO] [stdout] 34 |     pub fn try_clone(&self) -> Result<Self, RefOverflow> {
[INFO] [stdout]    |                      ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 | impl<'a, V> Deref for Ref<'a, V> {
[INFO] [stdout]    | -------------------------------- trait implemented here
[INFO] [stdout] 40 |     type Target = V;
[INFO] [stdout]    |     ----------- with `Target` set here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rt_ref` (lib test) due to 4 previous errors; 4 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/cell.rs:48:19
[INFO] [stdout]    |
[INFO] [stdout] 48 |     pub fn borrow(&self) -> CellRef<T> {
[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] 48 |     pub fn borrow(&self) -> CellRef<'_, T> {
[INFO] [stdout]    |                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/cell.rs:63:23
[INFO] [stdout]    |
[INFO] [stdout] 63 |     pub fn try_borrow(&self) -> Result<CellRef<T>, BorrowFail> {
[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] 63 |     pub fn try_borrow(&self) -> Result<CellRef<'_, T>, BorrowFail> {
[INFO] [stdout]    |                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/cell.rs:82:23
[INFO] [stdout]    |
[INFO] [stdout] 82 |     pub fn borrow_mut(&self) -> CellRefMut<T> {
[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] 82 |     pub fn borrow_mut(&self) -> CellRefMut<'_, T> {
[INFO] [stdout]    |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/cell.rs:97:27
[INFO] [stdout]    |
[INFO] [stdout] 97 |     pub fn try_borrow_mut(&self) -> Result<CellRefMut<T>, BorrowFail> {
[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] 97 |     pub fn try_borrow_mut(&self) -> Result<CellRefMut<'_, T>, BorrowFail> {
[INFO] [stdout]    |                                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: inherent methods on types that implement `Deref` or `Receiver` shadow methods of their target
[INFO] [stdout]    --> src/cell_ref.rs:43:22
[INFO] [stdout]     |
[INFO] [stdout]  43 |       pub fn try_clone(&self) -> Result<Self, RefOverflow> {
[INFO] [stdout]     |                        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 118 | / impl<'a, T> Deref for CellRef<'a, T>
[INFO] [stdout] 119 | | where
[INFO] [stdout] 120 | |     T: ?Sized,
[INFO] [stdout]     | |______________- trait implemented here
[INFO] [stdout] 121 |   {
[INFO] [stdout] 122 |       type Target = T;
[INFO] [stdout]     |       ----------- with `Target` set here
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D inherent-method-on-receiver`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: inherent methods on types that implement `Deref` or `Receiver` shadow methods of their target
[INFO] [stdout]    --> src/cell_ref.rs:101:22
[INFO] [stdout]     |
[INFO] [stdout] 101 |       pub fn map<U, F>(self, f: F) -> CellRef<'a, U>
[INFO] [stdout]     |                        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 118 | / impl<'a, T> Deref for CellRef<'a, T>
[INFO] [stdout] 119 | | where
[INFO] [stdout] 120 | |     T: ?Sized,
[INFO] [stdout]     | |______________- trait implemented here
[INFO] [stdout] 121 |   {
[INFO] [stdout] 122 |       type Target = T;
[INFO] [stdout]     |       ----------- with `Target` set here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: inherent methods on types that implement `Deref` or `Receiver` shadow methods of their target
[INFO] [stdout]   --> src/cell_ref_mut.rs:67:22
[INFO] [stdout]    |
[INFO] [stdout] 67 |       pub fn map<U, F>(self, f: F) -> CellRefMut<'a, U>
[INFO] [stdout]    |                        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 84 | / impl<'a, T> Deref for CellRefMut<'a, T>
[INFO] [stdout] 85 | | where
[INFO] [stdout] 86 | |     T: ?Sized,
[INFO] [stdout]    | |______________- trait implemented here
[INFO] [stdout] 87 |   {
[INFO] [stdout] 88 |       type Target = T;
[INFO] [stdout]    |       ----------- with `Target` set here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: inherent methods on types that implement `Deref` or `Receiver` shadow methods of their target
[INFO] [stdout]   --> src/ref.rs:34:22
[INFO] [stdout]    |
[INFO] [stdout] 34 |     pub fn try_clone(&self) -> Result<Self, RefOverflow> {
[INFO] [stdout]    |                      ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 | impl<'a, V> Deref for Ref<'a, V> {
[INFO] [stdout]    | -------------------------------- trait implemented here
[INFO] [stdout] 40 |     type Target = V;
[INFO] [stdout]    |     ----------- with `Target` set here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rt_ref` (lib) due to 4 previous errors; 4 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "ff8af3f67fc087fd37013ddd202fb3782d2851b21a0eadd2d13e28b985f3e253", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff8af3f67fc087fd37013ddd202fb3782d2851b21a0eadd2d13e28b985f3e253", kill_on_drop: false }`
[INFO] [stdout] ff8af3f67fc087fd37013ddd202fb3782d2851b21a0eadd2d13e28b985f3e253
