[INFO] crate intrusive-collections 0.8.1 is already in cache
[INFO] extracting crate intrusive-collections 0.8.1 into work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/reg/intrusive-collections/0.8.1
[INFO] extracting crate intrusive-collections 0.8.1 into work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/reg/intrusive-collections/0.8.1
[INFO] validating manifest of intrusive-collections-0.8.1 on toolchain master#60960a260f7b5c695fd0717311d72ce62dd4eb43
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of intrusive-collections-0.8.1 on toolchain try#266783e4e09e4e9d5307c1c8e695659c58bbcac7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing intrusive-collections-0.8.1
[INFO] finished frobbing intrusive-collections-0.8.1
[INFO] frobbed toml for intrusive-collections-0.8.1 written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/reg/intrusive-collections/0.8.1/Cargo.toml
[INFO] started frobbing intrusive-collections-0.8.1
[INFO] finished frobbing intrusive-collections-0.8.1
[INFO] frobbed toml for intrusive-collections-0.8.1 written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/reg/intrusive-collections/0.8.1/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking intrusive-collections-0.8.1 against try#266783e4e09e4e9d5307c1c8e695659c58bbcac7 for pr-63376
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-5/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/reg/intrusive-collections/0.8.1:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] f325ecbc57b2f519be7cba1af222bc3020b4033bccd366b4846f587f2fa0bca5
[INFO] running `"docker" "start" "-a" "f325ecbc57b2f519be7cba1af222bc3020b4033bccd366b4846f587f2fa0bca5"`
[INFO] [stderr]     Checking intrusive-collections v0.8.1 (/opt/crater/workdir)
[INFO] [stderr] warning: outlives requirements can be inferred
[INFO] [stderr]     --> src/rbtree.rs:1456:43
[INFO] [stderr]      |
[INFO] [stderr] 1456 | pub enum Entry<'a, A: Adapter<Link = Link> + 'a> {
[INFO] [stderr]      |                                           ^^^^^ help: remove this bound
[INFO] [stderr]      |
[INFO] [stderr] note: lint level defined here
[INFO] [stderr]     --> src/lib.rs:275:9
[INFO] [stderr]      |
[INFO] [stderr] 275  | #![warn(rust_2018_idioms)]
[INFO] [stderr]      |         ^^^^^^^^^^^^^^^^
[INFO] [stderr]      = note: `#[warn(explicit_outlives_requirements)]` implied by `#[warn(rust_2018_idioms)]`
[INFO] [stderr] 
[INFO] [stderr] warning: the type `linked_list::tests::test_non_static::Obj<'a, T>` does not permit being left uninitialized
[INFO] [stderr]     --> src/adapter.rs:73:40
[INFO] [stderr]      |
[INFO] [stderr] 73   |         let val: $container = unsafe { $crate::__core::mem::uninitialized() };
[INFO] [stderr]      |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]      |                                        |
[INFO] [stderr]      |                                        this code causes undefined behavior when executed
[INFO] [stderr]      |                                        help: use `MaybeUninit<T>` instead
[INFO] [stderr]      | 
[INFO] [stderr]     ::: src/linked_list.rs:1349:9
[INFO] [stderr]      |
[INFO] [stderr] 1349 |         intrusive_adapter!(ObjAdapter<'a, T> = &'a Obj<'a, T>: Obj<'a, T> {link: Link} where T: 'a);
[INFO] [stderr]      |         -------------------------------------------------------------------------------------------- in this macro invocation
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(invalid_value)]` on by default
[INFO] [stderr] note: References must be non-null (in this struct field)
[INFO] [stderr]     --> src/linked_list.rs:1347:13
[INFO] [stderr]      |
[INFO] [stderr] 1347 |             value: &'a T,
[INFO] [stderr]      |             ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: outlives requirements can be inferred
[INFO] [stderr]     --> src/rbtree.rs:1456:43
[INFO] [stderr]      |
[INFO] [stderr] 1456 | pub enum Entry<'a, A: Adapter<Link = Link> + 'a> {
[INFO] [stderr]      |                                           ^^^^^ help: remove this bound
[INFO] [stderr]      |
[INFO] [stderr] note: lint level defined here
[INFO] [stderr]     --> src/lib.rs:275:9
[INFO] [stderr]      |
[INFO] [stderr] 275  | #![warn(rust_2018_idioms)]
[INFO] [stderr]      |         ^^^^^^^^^^^^^^^^
[INFO] [stderr]      = note: `#[warn(explicit_outlives_requirements)]` implied by `#[warn(rust_2018_idioms)]`
[INFO] [stderr] 
[INFO] [stderr] warning: the type `rbtree::tests::test_non_static::Obj<'a, T>` does not permit being left uninitialized
[INFO] [stderr]     --> src/adapter.rs:73:40
[INFO] [stderr]      |
[INFO] [stderr] 73   |         let val: $container = unsafe { $crate::__core::mem::uninitialized() };
[INFO] [stderr]      |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]      |                                        |
[INFO] [stderr]      |                                        this code causes undefined behavior when executed
[INFO] [stderr]      |                                        help: use `MaybeUninit<T>` instead
[INFO] [stderr]      | 
[INFO] [stderr]     ::: src/rbtree.rs:2349:9
[INFO] [stderr]      |
[INFO] [stderr] 2349 |         intrusive_adapter!(ObjAdapter<'a, T> = &'a Obj<'a, T>: Obj<'a, T> {link: Link} where T: 'a);
[INFO] [stderr]      |         -------------------------------------------------------------------------------------------- in this macro invocation
[INFO] [stderr]      |
[INFO] [stderr] note: References must be non-null (in this struct field)
[INFO] [stderr]     --> src/rbtree.rs:2347:13
[INFO] [stderr]      |
[INFO] [stderr] 2347 |             value: &'a T,
[INFO] [stderr]      |             ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the type `singly_linked_list::tests::test_non_static::Obj<'a, T>` does not permit being left uninitialized
[INFO] [stderr]     --> src/adapter.rs:73:40
[INFO] [stderr]      |
[INFO] [stderr] 73   |         let val: $container = unsafe { $crate::__core::mem::uninitialized() };
[INFO] [stderr]      |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]      |                                        |
[INFO] [stderr]      |                                        this code causes undefined behavior when executed
[INFO] [stderr]      |                                        help: use `MaybeUninit<T>` instead
[INFO] [stderr]      | 
[INFO] [stderr]     ::: src/singly_linked_list.rs:1073:9
[INFO] [stderr]      |
[INFO] [stderr] 1073 |         intrusive_adapter!(ObjAdapter<'a, T> = &'a Obj<'a, T>: Obj<'a, T> {link: Link} where T: 'a);
[INFO] [stderr]      |         -------------------------------------------------------------------------------------------- in this macro invocation
[INFO] [stderr]      |
[INFO] [stderr] note: References must be non-null (in this struct field)
[INFO] [stderr]     --> src/singly_linked_list.rs:1071:13
[INFO] [stderr]      |
[INFO] [stderr] 1071 |             value: &'a T,
[INFO] [stderr]      |             ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.20s
[INFO] running `"docker" "inspect" "f325ecbc57b2f519be7cba1af222bc3020b4033bccd366b4846f587f2fa0bca5"`
[INFO] running `"docker" "rm" "-f" "f325ecbc57b2f519be7cba1af222bc3020b4033bccd366b4846f587f2fa0bca5"`
[INFO] [stdout] f325ecbc57b2f519be7cba1af222bc3020b4033bccd366b4846f587f2fa0bca5