[INFO] fetching crate stack 0.3.0...
[INFO] checking stack-0.3.0 against master#cfbc6d4cf1acbac5c025acf8ed68929caa551df3 for pr-75494-beta
[INFO] extracting crate stack 0.3.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate stack 0.3.0 on toolchain cfbc6d4cf1acbac5c025acf8ed68929caa551df3
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cfbc6d4cf1acbac5c025acf8ed68929caa551df3" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate stack 0.3.0
[INFO] finished tweaking crates.io crate stack 0.3.0
[INFO] tweaked toml for crates.io crate stack 0.3.0 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cfbc6d4cf1acbac5c025acf8ed68929caa551df3" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cfbc6d4cf1acbac5c025acf8ed68929caa551df3" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded coalesce v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+cfbc6d4cf1acbac5c025acf8ed68929caa551df3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5daf01d6a4da458468d3f3b6b4ed98a9f5844b5f0adce2deb1621d70a77ea5cf
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "5daf01d6a4da458468d3f3b6b4ed98a9f5844b5f0adce2deb1621d70a77ea5cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5daf01d6a4da458468d3f3b6b4ed98a9f5844b5f0adce2deb1621d70a77ea5cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5daf01d6a4da458468d3f3b6b4ed98a9f5844b5f0adce2deb1621d70a77ea5cf", kill_on_drop: false }`
[INFO] [stdout] 5daf01d6a4da458468d3f3b6b4ed98a9f5844b5f0adce2deb1621d70a77ea5cf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+cfbc6d4cf1acbac5c025acf8ed68929caa551df3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bfffa377e5c8025f9e23ed12025e88495132d76c64cb2cae5468e56075634b77
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "bfffa377e5c8025f9e23ed12025e88495132d76c64cb2cae5468e56075634b77", kill_on_drop: false }`
[INFO] [stderr]     Checking coalesce v0.1.1
[INFO] [stderr]     Checking stack v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/small_vec.rs:245:54
[INFO] [stdout]     |
[INFO] [stdout] 245 |             .field("data", &coalesce!(2 => |v| v as &fmt::Debug))
[INFO] [stdout]     |                                                      ^^^^^^^^^^ help: use `dyn`: `dyn fmt::Debug`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/small_vec.rs:245:54
[INFO] [stdout]     |
[INFO] [stdout] 245 |             .field("data", &coalesce!(2 => |v| v as &fmt::Debug))
[INFO] [stdout]     |                                                      ^^^^^^^^^^ help: use `dyn`: `dyn fmt::Debug`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/small_vec.rs:250:61
[INFO] [stdout]     |
[INFO] [stdout] 250 | impl<'a, T: Array + 'a, S: Vector<Item=T::Item> + 'a> AsRef<Vector<Item=T::Item> + 'a> for SmallVec<T, S> where T::Item: 'a, T::Index: 'a {
[INFO] [stdout]     |                                                             ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Vector<Item=T::Item> + 'a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/small_vec.rs:251:27
[INFO] [stdout]     |
[INFO] [stdout] 251 |     fn as_ref(&self) -> &(Vector<Item=T::Item> + 'a) {
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Vector<Item=T::Item> + 'a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stdout]  --> src/array.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::mem::uninitialized;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/array.rs:13:59
[INFO] [stdout]    |
[INFO] [stdout] 13 |     unsafe fn uninitialized() -> Self where Self: Sized { uninitialized() }
[INFO] [stdout]    |                                                           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/small_vec.rs:245:54
[INFO] [stdout]     |
[INFO] [stdout] 245 |             .field("data", &coalesce!(2 => |v| v as &fmt::Debug))
[INFO] [stdout]     |                                                      ^^^^^^^^^^ help: use `dyn`: `dyn fmt::Debug`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/small_vec.rs:245:54
[INFO] [stdout]     |
[INFO] [stdout] 245 |             .field("data", &coalesce!(2 => |v| v as &fmt::Debug))
[INFO] [stdout]     |                                                      ^^^^^^^^^^ help: use `dyn`: `dyn fmt::Debug`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/small_vec.rs:250:61
[INFO] [stdout]     |
[INFO] [stdout] 250 | impl<'a, T: Array + 'a, S: Vector<Item=T::Item> + 'a> AsRef<Vector<Item=T::Item> + 'a> for SmallVec<T, S> where T::Item: 'a, T::Index: 'a {
[INFO] [stdout]     |                                                             ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Vector<Item=T::Item> + 'a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/small_vec.rs:251:27
[INFO] [stdout]     |
[INFO] [stdout] 251 |     fn as_ref(&self) -> &(Vector<Item=T::Item> + 'a) {
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Vector<Item=T::Item> + 'a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stdout]  --> src/small_dst.rs:4:16
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::mem::{uninitialized, transmute, forget, size_of, align_of};
[INFO] [stdout]   |                ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/small_dst.rs:122:35
[INFO] [stdout]     |
[INFO] [stdout] 122 |             let mut v: *const T = uninitialized();
[INFO] [stdout]     |                                   ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/small_dst.rs:137:35
[INFO] [stdout]     |
[INFO] [stdout] 137 |             let mut v: *const T = uninitialized();
[INFO] [stdout]     |                                   ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stdout]  --> src/array.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::mem::uninitialized;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/array.rs:13:59
[INFO] [stdout]    |
[INFO] [stdout] 13 |     unsafe fn uninitialized() -> Self where Self: Sized { uninitialized() }
[INFO] [stdout]    |                                                           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stdout]  --> src/small_dst.rs:4:16
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::mem::{uninitialized, transmute, forget, size_of, align_of};
[INFO] [stdout]   |                ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/small_dst.rs:122:35
[INFO] [stdout]     |
[INFO] [stdout] 122 |             let mut v: *const T = uninitialized();
[INFO] [stdout]     |                                   ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/small_dst.rs:137:35
[INFO] [stdout]     |
[INFO] [stdout] 137 |             let mut v: *const T = uninitialized();
[INFO] [stdout]     |                                   ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]   --> src/small_vec.rs:47:38
[INFO] [stdout]    |
[INFO] [stdout] 47 |                 Coalesce2::A(v) => { replace(&mut self.0, Coalesce2::B(S::spill(v))); },
[INFO] [stdout]    |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]   --> src/small_vec.rs:47:38
[INFO] [stdout]    |
[INFO] [stdout] 47 |                 Coalesce2::A(v) => { replace(&mut self.0, Coalesce2::B(S::spill(v))); },
[INFO] [stdout]    |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> tests/array_vec.rs:129:15
[INFO] [stdout]     |
[INFO] [stdout] 129 |     &data as &Send;
[INFO] [stdout]     |               ^^^^ help: use `dyn`: `dyn Send`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> tests/array_vec.rs:130:15
[INFO] [stdout]     |
[INFO] [stdout] 130 |     &data as &Sync;
[INFO] [stdout]     |               ^^^^ help: use `dyn`: `dyn Sync`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> tests/small_dst.rs:15:23
[INFO] [stdout]    |
[INFO] [stdout] 15 |     let val: SmallDST<PartialEq<u32>> = small_dst!(1234u32);
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^ help: use `dyn`: `dyn PartialEq<u32>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> tests/small_dst.rs:30:23
[INFO] [stdout]    |
[INFO] [stdout] 30 |     let val: SmallDST<::std::fmt::Debug> = small_dst!(Struct(&flag));
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn (::std::fmt::Debug)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> tests/small_dst.rs:43:35
[INFO] [stdout]    |
[INFO] [stdout] 43 |     fn instance_one() -> SmallDST<TestTrait> {
[INFO] [stdout]    |                                   ^^^^^^^^^ help: use `dyn`: `dyn TestTrait`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> tests/small_dst.rs:52:35
[INFO] [stdout]    |
[INFO] [stdout] 52 |     fn instance_two() -> SmallDST<TestTrait> {
[INFO] [stdout]    |                                   ^^^^^^^^^ help: use `dyn`: `dyn TestTrait`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> tests/small_dst.rs:69:21
[INFO] [stdout]    |
[INFO] [stdout] 69 |     let c: SmallDST<Fn() -> String> = small_dst!(|| format!("{}", v1));
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn() -> String`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> tests/small_dst.rs:76:21
[INFO] [stdout]    |
[INFO] [stdout] 76 |     let _: SmallDST<Any, ArrayVec<[usize; 8]>> = small_dst!([0usize; 7]);
[INFO] [stdout]    |                     ^^^ help: use `dyn`: `dyn Any`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> tests/small_dst.rs:83:21
[INFO] [stdout]    |
[INFO] [stdout] 83 |     let _: SmallDST<Any, ArrayVec<[usize; 8]>> = small_dst!([0usize; 8]);
[INFO] [stdout]    |                     ^^^ help: use `dyn`: `dyn Any`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> tests/small_dst.rs:89:23
[INFO] [stdout]    |
[INFO] [stdout] 89 |     let dst: SmallDST<Any, SmallVec<[usize; 8]>> = small_dst!([0usize; 8]);
[INFO] [stdout]    |                       ^^^ help: use `dyn`: `dyn Any`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `&i32` does not permit zero-initialization
[INFO] [stdout]    --> tests/array_vec.rs:186:53
[INFO] [stdout]     |
[INFO] [stdout] 186 |         *v.as_mut().unwrap().get_unchecked_mut(0) = mem::zeroed();
[INFO] [stdout]     |                                                     ^^^^^^^^^^^^^
[INFO] [stdout]     |                                                     |
[INFO] [stdout]     |                                                     this code causes undefined behavior when executed
[INFO] [stdout]     |                                                     help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(invalid_value)]` on by default
[INFO] [stdout]     = note: references must be non-null
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.86s
[INFO] running `Command { std: "docker" "inspect" "bfffa377e5c8025f9e23ed12025e88495132d76c64cb2cae5468e56075634b77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bfffa377e5c8025f9e23ed12025e88495132d76c64cb2cae5468e56075634b77", kill_on_drop: false }`
[INFO] [stdout] bfffa377e5c8025f9e23ed12025e88495132d76c64cb2cae5468e56075634b77
