[INFO] fetching crate managed-heap 0.1.5...
[INFO] checking managed-heap-0.1.5 against try#55b3f428b4fac6790b1e8492e0b91ff2d80aec7c for pr-77035
[INFO] extracting crate managed-heap 0.1.5 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate managed-heap 0.1.5 on toolchain 55b3f428b4fac6790b1e8492e0b91ff2d80aec7c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+55b3f428b4fac6790b1e8492e0b91ff2d80aec7c" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate managed-heap 0.1.5
[INFO] finished tweaking crates.io crate managed-heap 0.1.5
[INFO] tweaked toml for crates.io crate managed-heap 0.1.5 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+55b3f428b4fac6790b1e8492e0b91ff2d80aec7c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+55b3f428b4fac6790b1e8492e0b91ff2d80aec7c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+55b3f428b4fac6790b1e8492e0b91ff2d80aec7c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a369cdcd01cf22bf2124bdb24c82bdbff2efc2ef5d51eb8f660d144a0825e071
[INFO] running `Command { std: "docker" "start" "-a" "a369cdcd01cf22bf2124bdb24c82bdbff2efc2ef5d51eb8f660d144a0825e071", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a369cdcd01cf22bf2124bdb24c82bdbff2efc2ef5d51eb8f660d144a0825e071", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a369cdcd01cf22bf2124bdb24c82bdbff2efc2ef5d51eb8f660d144a0825e071", kill_on_drop: false }`
[INFO] [stdout] a369cdcd01cf22bf2124bdb24c82bdbff2efc2ef5d51eb8f660d144a0825e071
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+55b3f428b4fac6790b1e8492e0b91ff2d80aec7c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d31792d538d589df5776e4f9fc0a363eeea031c98f32a4afcbf3535b94918a2a
[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" "d31792d538d589df5776e4f9fc0a363eeea031c98f32a4afcbf3535b94918a2a", kill_on_drop: false }`
[INFO] [stderr]     Checking managed-heap v0.1.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/block/set.rs:23:38
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub fn iter<'a>(&'a self) -> Box<Iterator<Item = &Block> + 'a> {
[INFO] [stdout]    |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = &Block> + 'a`
[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/heap.rs:144:38
[INFO] [stdout]     |
[INFO] [stdout] 144 |     pub fn used<'a>(&'a self) -> Box<Iterator<Item = &Block> + 'a> {
[INFO] [stdout]     |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = &Block> + 'a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/managed.rs:50:47
[INFO] [stdout]    |
[INFO] [stdout] 50 |     pub fn gc<T>(&mut self, roots: &mut [&mut GcRoot<T>])
[INFO] [stdout]    |                                               ^^^^^^^^^ help: use `dyn`: `dyn GcRoot<T>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/trace.rs:20:42
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn children<'a>(&'a mut self) -> Box<Iterator<Item = &'a mut I> + 'a>;
[INFO] [stdout]    |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = &'a mut I> + 'a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/block/set.rs:23:38
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub fn iter<'a>(&'a self) -> Box<Iterator<Item = &Block> + 'a> {
[INFO] [stdout]    |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = &Block> + 'a`
[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/heap.rs:144:38
[INFO] [stdout]     |
[INFO] [stdout] 144 |     pub fn used<'a>(&'a self) -> Box<Iterator<Item = &Block> + 'a> {
[INFO] [stdout]     |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = &Block> + 'a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/managed.rs:50:47
[INFO] [stdout]    |
[INFO] [stdout] 50 |     pub fn gc<T>(&mut self, roots: &mut [&mut GcRoot<T>])
[INFO] [stdout]    |                                               ^^^^^^^^^ help: use `dyn`: `dyn GcRoot<T>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/managed.rs:101:50
[INFO] [stdout]     |
[INFO] [stdout] 101 |             fn children<'a>(&'a mut self) -> Box<Iterator<Item = &'a mut IntegerObject> + 'a> {
[INFO] [stdout]     |                                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = &'a mut IntegerObject> + 'a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/managed.rs:173:41
[INFO] [stdout]     |
[INFO] [stdout] 173 |                 let mut roots: Vec<&mut GcRoot<IntegerObject>> = vec![&mut gc_root];
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn GcRoot<IntegerObject>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/managed.rs:180:41
[INFO] [stdout]     |
[INFO] [stdout] 180 |                 let mut roots: Vec<&mut GcRoot<IntegerObject>> = vec![&mut gc_root];
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn GcRoot<IntegerObject>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/managed.rs:187:37
[INFO] [stdout]     |
[INFO] [stdout] 187 |             let mut roots: Vec<&mut GcRoot<IntegerObject>> = vec![&mut gc_root];
[INFO] [stdout]     |                                     ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn GcRoot<IntegerObject>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/managed.rs:215:50
[INFO] [stdout]     |
[INFO] [stdout] 215 |             fn children<'a>(&'a mut self) -> Box<Iterator<Item = &'a mut LinkedList> + 'a> {
[INFO] [stdout]     |                                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = &'a mut LinkedList> + 'a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/managed.rs:364:41
[INFO] [stdout]     |
[INFO] [stdout] 364 |                 let mut roots: Vec<&mut GcRoot<LinkedList>> = vec![&mut gc_root];
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn GcRoot<LinkedList>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/managed.rs:371:41
[INFO] [stdout]     |
[INFO] [stdout] 371 |                 let mut roots: Vec<&mut GcRoot<LinkedList>> = vec![&mut gc_root];
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn GcRoot<LinkedList>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/managed.rs:378:37
[INFO] [stdout]     |
[INFO] [stdout] 378 |             let mut roots: Vec<&mut GcRoot<LinkedList>> = vec![&mut gc_root];
[INFO] [stdout]     |                                     ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn GcRoot<LinkedList>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/managed.rs:395:41
[INFO] [stdout]     |
[INFO] [stdout] 395 |                 let mut roots: Vec<&mut GcRoot<LinkedList>> = vec![&mut gc_root];
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn GcRoot<LinkedList>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/managed.rs:403:41
[INFO] [stdout]     |
[INFO] [stdout] 403 |                 let mut roots: Vec<&mut GcRoot<LinkedList>> = vec![&mut gc_root];
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn GcRoot<LinkedList>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/managed.rs:411:37
[INFO] [stdout]     |
[INFO] [stdout] 411 |             let mut roots: Vec<&mut GcRoot<LinkedList>> = vec![&mut gc_root];
[INFO] [stdout]     |                                     ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn GcRoot<LinkedList>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/managed.rs:431:45
[INFO] [stdout]     |
[INFO] [stdout] 431 |                     let mut roots: Vec<&mut GcRoot<LinkedList>> = vec![&mut gc_root];
[INFO] [stdout]     |                                             ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn GcRoot<LinkedList>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/managed.rs:438:45
[INFO] [stdout]     |
[INFO] [stdout] 438 |                     let mut roots: Vec<&mut GcRoot<LinkedList>> = vec![&mut gc_root];
[INFO] [stdout]     |                                             ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn GcRoot<LinkedList>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/managed.rs:445:41
[INFO] [stdout]     |
[INFO] [stdout] 445 |                 let mut roots: Vec<&mut GcRoot<LinkedList>> = vec![&mut gc_root];
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn GcRoot<LinkedList>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/managed.rs:450:41
[INFO] [stdout]     |
[INFO] [stdout] 450 |                 let mut roots: Vec<&mut GcRoot<LinkedList>> = vec![&mut gc_root];
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn GcRoot<LinkedList>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/trace.rs:20:42
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn children<'a>(&'a mut self) -> Box<Iterator<Item = &'a mut I> + 'a>;
[INFO] [stdout]    |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = &'a mut I> + 'a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 19 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.11s
[INFO] running `Command { std: "docker" "inspect" "d31792d538d589df5776e4f9fc0a363eeea031c98f32a4afcbf3535b94918a2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d31792d538d589df5776e4f9fc0a363eeea031c98f32a4afcbf3535b94918a2a", kill_on_drop: false }`
[INFO] [stdout] d31792d538d589df5776e4f9fc0a363eeea031c98f32a4afcbf3535b94918a2a