[INFO] fetching crate dense-heap 0.1.2...
[INFO] testing dense-heap-0.1.2 against 1.99.0-beta.8+cargoflags=--release for beta-release-1.100-2
[INFO] extracting crate dense-heap 0.1.2 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate dense-heap 0.1.2
[INFO] finished tweaking crates.io crate dense-heap 0.1.2
[INFO] tweaked toml for crates.io crate dense-heap 0.1.2 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate dense-heap 0.1.2 on toolchain 1.99.0-beta.8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "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" "+1.99.0-beta.8" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 9377798e7c0a3e5c1bd395ab3bcf6e81242576e97c86281fe31c474d8c29802d
[INFO] running `Command { std: "docker" "start" "9377798e7c0a3e5c1bd395ab3bcf6e81242576e97c86281fe31c474d8c29802d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9377798e7c0a3e5c1bd395ab3bcf6e81242576e97c86281fe31c474d8c29802d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "9377798e7c0a3e5c1bd395ab3bcf6e81242576e97c86281fe31c474d8c29802d" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9377798e7c0a3e5c1bd395ab3bcf6e81242576e97c86281fe31c474d8c29802d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "9377798e7c0a3e5c1bd395ab3bcf6e81242576e97c86281fe31c474d8c29802d" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling dense-heap v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/dheap.rs:115:30
[INFO] [stdout]     |
[INFO] [stdout] 115 |     pub unsafe fn unsafe_new(&self, v: T) -> DBox<T> {
[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] 115 |     pub unsafe fn unsafe_new(&self, v: T) -> DBox<'_, T> {
[INFO] [stdout]     |                                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/dheap.rs:154:21
[INFO] [stdout]     |
[INFO] [stdout] 154 |     pub fn safe_new(&self, v: T) -> Result<DBox<T>, &'static str> {
[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] 154 |     pub fn safe_new(&self, v: T) -> Result<DBox<'_, T>, &'static str> {
[INFO] [stdout]     |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.10s
[INFO] running `Command { std: "docker" "inspect" "9377798e7c0a3e5c1bd395ab3bcf6e81242576e97c86281fe31c474d8c29802d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "9377798e7c0a3e5c1bd395ab3bcf6e81242576e97c86281fe31c474d8c29802d" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "test" "--frozen" "--no-run" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/dheap.rs:115:30
[INFO] [stdout]     |
[INFO] [stdout] 115 |     pub unsafe fn unsafe_new(&self, v: T) -> DBox<T> {
[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] 115 |     pub unsafe fn unsafe_new(&self, v: T) -> DBox<'_, T> {
[INFO] [stdout]     |                                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling dense-heap v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/dheap.rs:154:21
[INFO] [stdout]     |
[INFO] [stdout] 154 |     pub fn safe_new(&self, v: T) -> Result<DBox<T>, &'static str> {
[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] 154 |     pub fn safe_new(&self, v: T) -> Result<DBox<'_, T>, &'static str> {
[INFO] [stdout]     |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/dheap.rs:115:30
[INFO] [stdout]     |
[INFO] [stdout] 115 |     pub unsafe fn unsafe_new(&self, v: T) -> DBox<T> {
[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] 115 |     pub unsafe fn unsafe_new(&self, v: T) -> DBox<'_, T> {
[INFO] [stdout]     |                                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/dheap.rs:154:21
[INFO] [stdout]     |
[INFO] [stdout] 154 |     pub fn safe_new(&self, v: T) -> Result<DBox<T>, &'static str> {
[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] 154 |     pub fn safe_new(&self, v: T) -> Result<DBox<'_, T>, &'static str> {
[INFO] [stdout]     |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.48s
[INFO] running `Command { std: "docker" "inspect" "9377798e7c0a3e5c1bd395ab3bcf6e81242576e97c86281fe31c474d8c29802d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "9377798e7c0a3e5c1bd395ab3bcf6e81242576e97c86281fe31c474d8c29802d" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "test" "--frozen" "--release", kill_on_drop: false }`
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout] 
[INFO] [stderr]    --> src/dheap.rs:115:30
[INFO] [stdout] running 4 tests
[INFO] [stderr]     |
[INFO] [stderr] 115 |     pub unsafe fn unsafe_new(&self, v: T) -> DBox<T> {
[INFO] [stderr]     |                              ^^^^^           ^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                              |
[INFO] [stderr]     |                              the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 115 |     pub unsafe fn unsafe_new(&self, v: T) -> DBox<'_, T> {
[INFO] [stderr]     |                                                   +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/dheap.rs:154:21
[INFO] [stderr]     |
[INFO] [stderr] 154 |     pub fn safe_new(&self, v: T) -> Result<DBox<T>, &'static str> {
[INFO] [stderr]     |                     ^^^^^                  ^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 154 |     pub fn safe_new(&self, v: T) -> Result<DBox<'_, T>, &'static str> {
[INFO] [stderr]     |                                                 +++
[INFO] [stderr] 
[INFO] [stderr] warning: `dense-heap` (lib) generated 2 warnings (run `cargo fix --lib -p dense-heap` to apply 2 suggestions)
[INFO] [stderr] warning: `dense-heap` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/release/deps/dense_heap-465cd5d8eaac0289)
[INFO] [stderr]    Doc-tests dense_heap
[INFO] [stdout] test tests::tests::allocate_and_deallocate ... ok
[INFO] [stdout] test tests::tests::create_dheap ... ok
[INFO] [stdout] test tests::tests::linked_list ... ok
[INFO] [stdout] test tests::tests::multiple_allocations ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "9377798e7c0a3e5c1bd395ab3bcf6e81242576e97c86281fe31c474d8c29802d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9377798e7c0a3e5c1bd395ab3bcf6e81242576e97c86281fe31c474d8c29802d", kill_on_drop: false }`
[INFO] [stdout] 9377798e7c0a3e5c1bd395ab3bcf6e81242576e97c86281fe31c474d8c29802d
