[INFO] fetching crate backdrop_arc 0.3.0...
[INFO] checking backdrop_arc-0.3.0 against try#a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399 for pr-145770
[INFO] extracting crate backdrop_arc 0.3.0 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate backdrop_arc 0.3.0
[INFO] finished tweaking crates.io crate backdrop_arc 0.3.0
[INFO] tweaked toml for crates.io crate backdrop_arc 0.3.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate backdrop_arc 0.3.0 on toolchain a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "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" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 15 packages to latest compatible versions
[INFO] [stderr]       Adding yoke v0.7.5 (available: v0.8.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1334ceffd1185e174a939a04ae2e529601cf493c765fe573b55aafb96f2497bb
[INFO] running `Command { std: "docker" "start" "-a" "1334ceffd1185e174a939a04ae2e529601cf493c765fe573b55aafb96f2497bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1334ceffd1185e174a939a04ae2e529601cf493c765fe573b55aafb96f2497bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1334ceffd1185e174a939a04ae2e529601cf493c765fe573b55aafb96f2497bb", kill_on_drop: false }`
[INFO] [stdout] 1334ceffd1185e174a939a04ae2e529601cf493c765fe573b55aafb96f2497bb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] efeeefa89c6f3f7ad7ecb9d4e6b6bbba91f9be48226cb3f25e0437250361c829
[INFO] running `Command { std: "docker" "start" "-a" "efeeefa89c6f3f7ad7ecb9d4e6b6bbba91f9be48226cb3f25e0437250361c829", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]     Checking lazy_static v1.5.0
[INFO] [stderr]     Checking backdrop v0.1.11
[INFO] [stderr]     Checking backdrop_arc v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: implicit autoref creates a reference to the dereference of a raw pointer
[INFO] [stdout]    --> src/arc.rs:205:19
[INFO] [stdout]     |
[INFO] [stdout] 205 |         let len = (*ptr).len();
[INFO] [stdout]     |                   ^^---^^^^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     this raw pointer has type `*const [T]`
[INFO] [stdout]     |
[INFO] [stdout]     = note: creating a reference requires the pointer target to be valid and imposes aliasing requirements
[INFO] [stdout] note: autoref is being applied to this expression, resulting in: `&[T]`
[INFO] [stdout]    --> src/arc.rs:205:19
[INFO] [stdout]     |
[INFO] [stdout] 205 |         let len = (*ptr).len();
[INFO] [stdout]     |                   ^^^^^^
[INFO] [stdout] note: method calls to `len` require a reference
[INFO] [stdout]    --> /rustc/a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399/library/core/src/slice/mod.rs:116:5
[INFO] [stdout]     = note: `#[deny(dangerous_implicit_autorefs)]` on by default
[INFO] [stdout] help: try using a raw pointer method instead; or if this reference is intentional, make it explicit
[INFO] [stdout]     |
[INFO] [stdout] 205 |         let len = (&(*ptr)).len();
[INFO] [stdout]     |                   ++      +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: ambiguous wide pointer comparison, the comparison includes metadata which may not be expected
[INFO] [stdout]    --> src/arc.rs:294:9
[INFO] [stdout]     |
[INFO] [stdout] 294 |         this.ptr() == other.ptr()
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(ambiguous_wide_pointer_comparisons)]` on by default
[INFO] [stdout] help: use `std::ptr::addr_eq` or untyped pointers to only compare their addresses
[INFO] [stdout]     |
[INFO] [stdout] 294 -         this.ptr() == other.ptr()
[INFO] [stdout] 294 +         std::ptr::addr_eq(this.ptr(), other.ptr())
[INFO] [stdout]     |
[INFO] [stdout] help: use explicit `std::ptr::eq` method to compare metadata and addresses
[INFO] [stdout]     |
[INFO] [stdout] 294 -         this.ptr() == other.ptr()
[INFO] [stdout] 294 +         std::ptr::eq(this.ptr(), other.ptr())
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/arc_union.rs:90:19
[INFO] [stdout]    |
[INFO] [stdout] 90 |     pub fn borrow(&self) -> ArcUnionBorrow<A, B> {
[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] 90 |     pub fn borrow(&self) -> ArcUnionBorrow<'_, A, B> {
[INFO] [stdout]    |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/arc_union.rs:127:21
[INFO] [stdout]     |
[INFO] [stdout] 127 |     pub fn as_first(&self) -> Option<ArcBorrow<A>> {
[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] 127 |     pub fn as_first(&self) -> Option<ArcBorrow<'_, A>> {
[INFO] [stdout]     |                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/arc_union.rs:135:22
[INFO] [stdout]     |
[INFO] [stdout] 135 |     pub fn as_second(&self) -> Option<ArcBorrow<B>> {
[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] 135 |     pub fn as_second(&self) -> Option<ArcBorrow<'_, B>> {
[INFO] [stdout]     |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `backdrop_arc` (lib) due to 1 previous error; 4 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: implicit autoref creates a reference to the dereference of a raw pointer
[INFO] [stdout]    --> src/arc.rs:205:19
[INFO] [stdout]     |
[INFO] [stdout] 205 |         let len = (*ptr).len();
[INFO] [stdout]     |                   ^^---^^^^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     this raw pointer has type `*const [T]`
[INFO] [stdout]     |
[INFO] [stdout]     = note: creating a reference requires the pointer target to be valid and imposes aliasing requirements
[INFO] [stdout] note: autoref is being applied to this expression, resulting in: `&[T]`
[INFO] [stdout]    --> src/arc.rs:205:19
[INFO] [stdout]     |
[INFO] [stdout] 205 |         let len = (*ptr).len();
[INFO] [stdout]     |                   ^^^^^^
[INFO] [stdout] note: method calls to `len` require a reference
[INFO] [stdout]    --> /rustc/a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399/library/core/src/slice/mod.rs:116:5
[INFO] [stdout]     = note: `#[deny(dangerous_implicit_autorefs)]` on by default
[INFO] [stdout] help: try using a raw pointer method instead; or if this reference is intentional, make it explicit
[INFO] [stdout]     |
[INFO] [stdout] 205 |         let len = (&(*ptr)).len();
[INFO] [stdout]     |                   ++      +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: ambiguous wide pointer comparison, the comparison includes metadata which may not be expected
[INFO] [stdout]    --> src/arc.rs:294:9
[INFO] [stdout]     |
[INFO] [stdout] 294 |         this.ptr() == other.ptr()
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(ambiguous_wide_pointer_comparisons)]` on by default
[INFO] [stdout] help: use `std::ptr::addr_eq` or untyped pointers to only compare their addresses
[INFO] [stdout]     |
[INFO] [stdout] 294 -         this.ptr() == other.ptr()
[INFO] [stdout] 294 +         std::ptr::addr_eq(this.ptr(), other.ptr())
[INFO] [stdout]     |
[INFO] [stdout] help: use explicit `std::ptr::eq` method to compare metadata and addresses
[INFO] [stdout]     |
[INFO] [stdout] 294 -         this.ptr() == other.ptr()
[INFO] [stdout] 294 +         std::ptr::eq(this.ptr(), other.ptr())
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/arc_union.rs:90:19
[INFO] [stdout]    |
[INFO] [stdout] 90 |     pub fn borrow(&self) -> ArcUnionBorrow<A, B> {
[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] 90 |     pub fn borrow(&self) -> ArcUnionBorrow<'_, A, B> {
[INFO] [stdout]    |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/arc_union.rs:127:21
[INFO] [stdout]     |
[INFO] [stdout] 127 |     pub fn as_first(&self) -> Option<ArcBorrow<A>> {
[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] 127 |     pub fn as_first(&self) -> Option<ArcBorrow<'_, A>> {
[INFO] [stdout]     |                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/arc_union.rs:135:22
[INFO] [stdout]     |
[INFO] [stdout] 135 |     pub fn as_second(&self) -> Option<ArcBorrow<B>> {
[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] 135 |     pub fn as_second(&self) -> Option<ArcBorrow<'_, B>> {
[INFO] [stdout]     |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `backdrop_arc` (lib test) due to 1 previous error; 4 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "efeeefa89c6f3f7ad7ecb9d4e6b6bbba91f9be48226cb3f25e0437250361c829", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "efeeefa89c6f3f7ad7ecb9d4e6b6bbba91f9be48226cb3f25e0437250361c829", kill_on_drop: false }`
[INFO] [stdout] efeeefa89c6f3f7ad7ecb9d4e6b6bbba91f9be48226cb3f25e0437250361c829
