[INFO] fetching crate memory_slice 0.1.0-preview3...
[INFO] testing memory_slice-0.1.0-preview3 against 1.55.0 for beta-1.56-1
[INFO] extracting crate memory_slice 0.1.0-preview3 into /workspace/builds/worker-54/source
[INFO] validating manifest of crates.io crate memory_slice 0.1.0-preview3 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate memory_slice 0.1.0-preview3
[INFO] finished tweaking crates.io crate memory_slice 0.1.0-preview3
[INFO] tweaked toml for crates.io crate memory_slice 0.1.0-preview3 written to /workspace/builds/worker-54/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3df6ce926e2ea46e9e43ff4ab2b4551227ac83c6eb46e320dec88e43146072a6
[INFO] running `Command { std: "docker" "start" "-a" "3df6ce926e2ea46e9e43ff4ab2b4551227ac83c6eb46e320dec88e43146072a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3df6ce926e2ea46e9e43ff4ab2b4551227ac83c6eb46e320dec88e43146072a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3df6ce926e2ea46e9e43ff4ab2b4551227ac83c6eb46e320dec88e43146072a6", kill_on_drop: false }`
[INFO] [stdout] 3df6ce926e2ea46e9e43ff4ab2b4551227ac83c6eb46e320dec88e43146072a6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2bf814abfd942a0d9121a7ac8f1fb598e1fbc0e2904a670597fd51556f508fcc
[INFO] running `Command { std: "docker" "start" "-a" "2bf814abfd942a0d9121a7ac8f1fb598e1fbc0e2904a670597fd51556f508fcc", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling contracts v0.6.2
[INFO] [stderr]    Compiling memory_slice v0.1.0-preview3 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0495]: cannot infer an appropriate lifetime for autoref due to conflicting requirements
[INFO] [stdout]    --> src/lib.rs:223:32
[INFO] [stdout]     |
[INFO] [stdout] 223 |         let (l,r) = self.inner.split_at(mid);
[INFO] [stdout]     |                                ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: first, the lifetime cannot outlive the anonymous lifetime #1 defined on the body at 217:5...
[INFO] [stdout]    --> src/lib.rs:217:5
[INFO] [stdout]     |
[INFO] [stdout] 217 |     #[test_ensures(self.len() == ret.0.len() + ret.1.len())]
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] note: ...so that reference does not outlive borrowed content
[INFO] [stdout]    --> src/lib.rs:217:5
[INFO] [stdout]     |
[INFO] [stdout] 217 |     #[test_ensures(self.len() == ret.0.len() + ret.1.len())]
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] note: but, the lifetime must be valid for the anonymous lifetime defined on the method body at 222:21...
[INFO] [stdout]    --> src/lib.rs:222:21
[INFO] [stdout]     |
[INFO] [stdout] 222 |     pub fn split_at(&self, mid: usize) -> (&Self, &Self) {
[INFO] [stdout]     |                     ^^^^^
[INFO] [stdout] note: ...so that the expression is assignable
[INFO] [stdout]    --> src/lib.rs:217:5
[INFO] [stdout]     |
[INFO] [stdout] 217 |     #[test_ensures(self.len() == ret.0.len() + ret.1.len())]
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = note: expected `(&Memory, &Memory)`
[INFO] [stdout]                found `(&Memory, &Memory)`
[INFO] [stdout]     = note: this error originates in the attribute macro `test_ensures` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0495]: cannot infer an appropriate lifetime for autoref due to conflicting requirements
[INFO] [stdout]    --> src/lib.rs:333:32
[INFO] [stdout]     |
[INFO] [stdout] 333 |         let (pad, rest) = self.split_at(s0);
[INFO] [stdout]     |                                ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: first, the lifetime cannot outlive the anonymous lifetime #1 defined on the body at 315:5...
[INFO] [stdout]    --> src/lib.rs:315:5
[INFO] [stdout]     |
[INFO] [stdout] 315 |     #[test_ensures(ret.0.len()<layout.align())]
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] note: ...so that reference does not outlive borrowed content
[INFO] [stdout]    --> src/lib.rs:315:5
[INFO] [stdout]     |
[INFO] [stdout] 315 |     #[test_ensures(ret.0.len()<layout.align())]
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] note: but, the lifetime must be valid for the anonymous lifetime defined on the method body at 331:22...
[INFO] [stdout]    --> src/lib.rs:331:22
[INFO] [stdout]     |
[INFO] [stdout] 331 |     pub fn align_for(&self, layout: Layout) -> (&Self, &Self, &Self) {
[INFO] [stdout]     |                      ^^^^^
[INFO] [stdout] note: ...so that the expression is assignable
[INFO] [stdout]    --> src/lib.rs:315:5
[INFO] [stdout]     |
[INFO] [stdout] 315 |     #[test_ensures(ret.0.len()<layout.align())]
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = note: expected `(&Memory, &Memory, &Memory)`
[INFO] [stdout]                found `(&Memory, &Memory, &Memory)`
[INFO] [stdout]     = note: this error originates in the attribute macro `test_ensures` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0495]: cannot infer an appropriate lifetime for autoref due to conflicting requirements
[INFO] [stdout]    --> src/lib.rs:348:14
[INFO] [stdout]     |
[INFO] [stdout] 348 |         self.align_for(unsafe {
[INFO] [stdout]     |              ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: first, the lifetime cannot outlive the anonymous lifetime #1 defined on the body at 338:5...
[INFO] [stdout]    --> src/lib.rs:338:5
[INFO] [stdout]     |
[INFO] [stdout] 338 |     #[test_ensures(ret.1.len()<mem::size_of::<T>())]
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] note: ...so that reference does not outlive borrowed content
[INFO] [stdout]    --> src/lib.rs:338:5
[INFO] [stdout]     |
[INFO] [stdout] 338 |     #[test_ensures(ret.1.len()<mem::size_of::<T>())]
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] note: but, the lifetime must be valid for the anonymous lifetime defined on the method body at 347:30...
[INFO] [stdout]    --> src/lib.rs:347:30
[INFO] [stdout]     |
[INFO] [stdout] 347 |     pub fn align_for_type<T>(&self) -> (&Self, &Self, &Self) {
[INFO] [stdout]     |                              ^^^^^
[INFO] [stdout] note: ...so that the expression is assignable
[INFO] [stdout]    --> src/lib.rs:338:5
[INFO] [stdout]     |
[INFO] [stdout] 338 |     #[test_ensures(ret.1.len()<mem::size_of::<T>())]
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = note: expected `(&Memory, &Memory, &Memory)`
[INFO] [stdout]                found `(&Memory, &Memory, &Memory)`
[INFO] [stdout]     = note: this error originates in the attribute macro `test_ensures` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0495]: cannot infer an appropriate lifetime for autoref due to conflicting requirements
[INFO] [stdout]    --> src/lib.rs:363:14
[INFO] [stdout]     |
[INFO] [stdout] 363 |         self.align_for(Layout::for_value(v))
[INFO] [stdout]     |              ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: first, the lifetime cannot outlive the anonymous lifetime #1 defined on the body at 353:5...
[INFO] [stdout]    --> src/lib.rs:353:5
[INFO] [stdout]     |
[INFO] [stdout] 353 |     #[test_ensures(ret.1.len()<mem::size_of_val(v))]
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] note: ...so that reference does not outlive borrowed content
[INFO] [stdout]    --> src/lib.rs:353:5
[INFO] [stdout]     |
[INFO] [stdout] 353 |     #[test_ensures(ret.1.len()<mem::size_of_val(v))]
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] note: but, the lifetime must be valid for the anonymous lifetime defined on the method body at 362:37...
[INFO] [stdout]    --> src/lib.rs:362:37
[INFO] [stdout]     |
[INFO] [stdout] 362 |     pub fn align_for_val<T: ?Sized>(&self, v: &T) -> (&Self, &Self, &Self) {
[INFO] [stdout]     |                                     ^^^^^
[INFO] [stdout] note: ...so that the expression is assignable
[INFO] [stdout]    --> src/lib.rs:353:5
[INFO] [stdout]     |
[INFO] [stdout] 353 |     #[test_ensures(ret.1.len()<mem::size_of_val(v))]
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = note: expected `(&Memory, &Memory, &Memory)`
[INFO] [stdout]                found `(&Memory, &Memory, &Memory)`
[INFO] [stdout]     = note: this error originates in the attribute macro `test_ensures` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0495`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `memory_slice` due to 5 previous errors
[INFO] running `Command { std: "docker" "inspect" "2bf814abfd942a0d9121a7ac8f1fb598e1fbc0e2904a670597fd51556f508fcc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2bf814abfd942a0d9121a7ac8f1fb598e1fbc0e2904a670597fd51556f508fcc", kill_on_drop: false }`
[INFO] [stdout] 2bf814abfd942a0d9121a7ac8f1fb598e1fbc0e2904a670597fd51556f508fcc