[INFO] fetching crate drc 0.1.2...
[INFO] testing drc-0.1.2 against try#b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b for pr-145330-1
[INFO] extracting crate drc 0.1.2 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate drc 0.1.2
[INFO] finished tweaking crates.io crate drc 0.1.2
[INFO] tweaked toml for crates.io crate drc 0.1.2 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate drc 0.1.2 on toolchain b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "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" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 731aeb7284166b7247cb0d15260cfa837736b70fb606efeb8ffeb4deb78ae439
[INFO] running `Command { std: "docker" "start" "-a" "731aeb7284166b7247cb0d15260cfa837736b70fb606efeb8ffeb4deb78ae439", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "731aeb7284166b7247cb0d15260cfa837736b70fb606efeb8ffeb4deb78ae439", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "731aeb7284166b7247cb0d15260cfa837736b70fb606efeb8ffeb4deb78ae439", kill_on_drop: false }`
[INFO] [stdout] 731aeb7284166b7247cb0d15260cfa837736b70fb606efeb8ffeb4deb78ae439
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 85c26c835f77c0c184830b6e5672b0f2637e455f7b55505f039ad7185d9c7083
[INFO] running `Command { std: "docker" "start" "-a" "85c26c835f77c0c184830b6e5672b0f2637e455f7b55505f039ad7185d9c7083", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling drc v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `Box::<T>::from_raw` that must be used
[INFO] [stdout]    --> src/drc.rs:184:29
[INFO] [stdout]     |
[INFO] [stdout] 184 | ...                   Box::from_raw(this.ptr.as_ptr());
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box`
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 184 |                             let _ = Box::from_raw(this.ptr.as_ptr());
[INFO] [stdout]     |                             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T>::from_raw` that must be used
[INFO] [stdout]    --> src/drc.rs:854:21
[INFO] [stdout]     |
[INFO] [stdout] 854 |                     Box::from_raw(self.ptr.as_ptr());
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box`
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 854 |                     let _ = Box::from_raw(self.ptr.as_ptr());
[INFO] [stdout]     |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T>::from_raw` that must be used
[INFO] [stdout]    --> src/weak.rs:389:21
[INFO] [stdout]     |
[INFO] [stdout] 389 |                     Box::from_raw(self.ptr.as_ptr());
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box`
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 389 |                     let _ = Box::from_raw(self.ptr.as_ptr());
[INFO] [stdout]     |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.46s
[INFO] running `Command { std: "docker" "inspect" "85c26c835f77c0c184830b6e5672b0f2637e455f7b55505f039ad7185d9c7083", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "85c26c835f77c0c184830b6e5672b0f2637e455f7b55505f039ad7185d9c7083", kill_on_drop: false }`
[INFO] [stdout] 85c26c835f77c0c184830b6e5672b0f2637e455f7b55505f039ad7185d9c7083
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6439e245f9c7f7e83022c8fe4b7f30a56a72d3113bcb818adf0738bbd7e8aa81
[INFO] running `Command { std: "docker" "start" "-a" "6439e245f9c7f7e83022c8fe4b7f30a56a72d3113bcb818adf0738bbd7e8aa81", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stdout] warning: unused return value of `Box::<T>::from_raw` that must be used
[INFO] [stdout]    --> src/drc.rs:184:29
[INFO] [stdout]     |
[INFO] [stdout] 184 | ...                   Box::from_raw(this.ptr.as_ptr());
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box`
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 184 |                             let _ = Box::from_raw(this.ptr.as_ptr());
[INFO] [stdout]     |                             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling drc v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `Box::<T>::from_raw` that must be used
[INFO] [stdout]    --> src/drc.rs:854:21
[INFO] [stdout]     |
[INFO] [stdout] 854 |                     Box::from_raw(self.ptr.as_ptr());
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box`
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 854 |                     let _ = Box::from_raw(self.ptr.as_ptr());
[INFO] [stdout]     |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T>::from_raw` that must be used
[INFO] [stdout]    --> src/weak.rs:389:21
[INFO] [stdout]     |
[INFO] [stdout] 389 |                     Box::from_raw(self.ptr.as_ptr());
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box`
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 389 |                     let _ = Box::from_raw(self.ptr.as_ptr());
[INFO] [stdout]     |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> src/drc.rs:2006:53
[INFO] [stdout]      |
[INFO] [stdout] 2006 |                 let original_storage_ref = unsafe { (&*original_storage) };
[INFO] [stdout]      |                                                     ^                  ^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 2006 -                 let original_storage_ref = unsafe { (&*original_storage) };
[INFO] [stdout] 2006 +                 let original_storage_ref = unsafe { &*original_storage };
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> src/drc.rs:2007:53
[INFO] [stdout]      |
[INFO] [stdout] 2007 |                 let separate_storage_ref = unsafe { (&*separate_storage) };
[INFO] [stdout]      |                                                     ^                  ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 2007 -                 let separate_storage_ref = unsafe { (&*separate_storage) };
[INFO] [stdout] 2007 +                 let separate_storage_ref = unsafe { &*separate_storage };
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T>::from_raw` that must be used
[INFO] [stdout]    --> src/drc.rs:184:29
[INFO] [stdout]     |
[INFO] [stdout] 184 | ...                   Box::from_raw(this.ptr.as_ptr());
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box`
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 184 |                             let _ = Box::from_raw(this.ptr.as_ptr());
[INFO] [stdout]     |                             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T>::from_raw` that must be used
[INFO] [stdout]    --> src/drc.rs:854:21
[INFO] [stdout]     |
[INFO] [stdout] 854 |                     Box::from_raw(self.ptr.as_ptr());
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box`
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 854 |                     let _ = Box::from_raw(self.ptr.as_ptr());
[INFO] [stdout]     |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T>::from_raw` that must be used
[INFO] [stdout]    --> src/weak.rs:389:21
[INFO] [stdout]     |
[INFO] [stdout] 389 |                     Box::from_raw(self.ptr.as_ptr());
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box`
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 389 |                     let _ = Box::from_raw(self.ptr.as_ptr());
[INFO] [stdout]     |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.83s
[INFO] running `Command { std: "docker" "inspect" "6439e245f9c7f7e83022c8fe4b7f30a56a72d3113bcb818adf0738bbd7e8aa81", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6439e245f9c7f7e83022c8fe4b7f30a56a72d3113bcb818adf0738bbd7e8aa81", kill_on_drop: false }`
[INFO] [stdout] 6439e245f9c7f7e83022c8fe4b7f30a56a72d3113bcb818adf0738bbd7e8aa81
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a397f5937ec50ccb76a6478fe52576c6809657701e93a07f8145c23f3ce9324c
[INFO] running `Command { std: "docker" "start" "-a" "a397f5937ec50ccb76a6478fe52576c6809657701e93a07f8145c23f3ce9324c", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr] warning: unused return value of `Box::<T>::from_raw` that must be used
[INFO] [stderr]    --> src/drc.rs:184:29
[INFO] [stderr]     |
[INFO] [stderr] 184 | ...                   Box::from_raw(this.ptr.as_ptr());
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box`
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 184 |                             let _ = Box::from_raw(this.ptr.as_ptr());
[INFO] [stderr]     |                             +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `Box::<T>::from_raw` that must be used
[INFO] [stderr]    --> src/drc.rs:854:21
[INFO] [stderr]     |
[INFO] [stderr] 854 |                     Box::from_raw(self.ptr.as_ptr());
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box`
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 854 |                     let _ = Box::from_raw(self.ptr.as_ptr());
[INFO] [stderr]     |                     +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `Box::<T>::from_raw` that must be used
[INFO] [stderr]    --> src/weak.rs:389:21
[INFO] [stderr]     |
[INFO] [stderr] 389 |                     Box::from_raw(self.ptr.as_ptr());
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box`
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 389 |                     let _ = Box::from_raw(self.ptr.as_ptr());
[INFO] [stderr]     |                     +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `drc` (lib) generated 3 warnings
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> src/drc.rs:2006:53
[INFO] [stderr]      |
[INFO] [stderr] 2006 |                 let original_storage_ref = unsafe { (&*original_storage) };
[INFO] [stderr]      |                                                     ^                  ^
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]      |
[INFO] [stderr] 2006 -                 let original_storage_ref = unsafe { (&*original_storage) };
[INFO] [stderr] 2006 +                 let original_storage_ref = unsafe { &*original_storage };
[INFO] [stderr]      |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> src/drc.rs:2007:53
[INFO] [stderr]      |
[INFO] [stderr] 2007 |                 let separate_storage_ref = unsafe { (&*separate_storage) };
[INFO] [stderr]      |                                                     ^                  ^
[INFO] [stderr]      |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]      |
[INFO] [stderr] 2007 -                 let separate_storage_ref = unsafe { (&*separate_storage) };
[INFO] [stderr] 2007 +                 let separate_storage_ref = unsafe { &*separate_storage };
[INFO] [stderr]      |
[INFO] [stderr] 
[INFO] [stderr] warning: `drc` (lib test) generated 5 warnings (3 duplicates) (run `cargo fix --lib -p drc --tests` to apply 2 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/drc-b6869d31bb13f795)
[INFO] [stdout] 
[INFO] [stdout] running 24 tests
[INFO] [stdout] test drc::tests::debug ... ok
[INFO] [stdout] test drc::tests::display ... ok
[INFO] [stdout] test drc::tests::detach ... ok
[INFO] [stdout] test drc::tests::drop ... ok
[INFO] [stdout] test drc::tests::get_mut ... ok
[INFO] [stdout] test drc::tests::linked ... ok
[INFO] [stdout] test drc::tests::new ... ok
[INFO] [stdout] test drc::tests::arc_ptr_eq ... ok
[INFO] [stdout] test drc::tests::pointer ... ok
[INFO] [stdout] test drc::tests::ptr_eq ... ok
[INFO] [stdout] test drc::tests::separate ... ok
[INFO] [stdout] test drc::tests::try_unwrap ... ok
[INFO] [stdout] test drc::tests::strong_count ... ok
[INFO] [stdout] test weak::tests::detach ... ok
[INFO] [stdout] test weak::tests::debug ... ok
[INFO] [stdout] test weak::tests::drop ... ok
[INFO] [stdout] test weak::tests::new_and_default ... ok
[INFO] [stdout] test weak::tests::clone ... ok
[INFO] [stdout] test weak::tests::upgrade ... ok
[INFO] [stdout] test weak::tests::with_weak_arc ... ok
[INFO] [stdout] test drc::tests::make_mut ... ok
[INFO] [stdout] test drc::tests::downgrade ... ok
[INFO] [stdout] test drc::tests::clone ... ok
[INFO] [stdout] test drc::tests::weak_count ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 24 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests drc
[INFO] [stdout] 
[INFO] [stdout] running 30 tests
[INFO] [stdout] test src/drc.rs - drc::Drc<T>::clone (line 759) ... ok
[INFO] [stdout] test src/drc.rs - drc::Drc<T>::downgrade (line 222) ... ok
[INFO] [stdout] test src/drc.rs - drc::Drc<T>::default (line 887) ... ok
[INFO] [stdout] test src/drc.rs - drc::Drc<T>::arc_ptr_eq (line 452) ... ok
[INFO] [stdout] test src/drc.rs - drc::Drc<T>::eq (line 1049) ... ok
[INFO] [stdout] test src/drc.rs - drc::Drc<T>::ge (line 1162) ... ok
[INFO] [stdout] test src/drc.rs - drc::Drc<T>::get_mut (line 360) ... ok
[INFO] [stdout] test src/drc.rs - drc::Drc<T>::drop (line 805) ... ok
[INFO] [stdout] test src/drc.rs - drc::Drc<T>::cmp (line 1024) ... ok
[INFO] [stdout] test src/drc.rs - drc::Drc<T>::detach (line 88) ... ok
[INFO] [stdout] test src/drc.rs - drc::Drc<T>::new (line 67) ... ok
[INFO] [stdout] test src/drc.rs - drc::Drc<T>::gt (line 1144) ... ok
[INFO] [stdout] test src/drc.rs - drc::Drc<T>::lt (line 1108) ... ok
[INFO] [stdout] test src/drc.rs - drc::Drc<T>::make_mut (line 546) ... ok
[INFO] [stdout] test src/drc.rs - drc::Drc<T>::le (line 1126) ... ok
[INFO] [stdout] test src/drc.rs - drc::Drc<T>::linked (line 496) ... ok
[INFO] [stdout] test src/drc.rs - drc::Drc<T>::ne (line 1066) ... ok
[INFO] [stdout] test src/drc.rs - drc::Drc<T>::strong_count (line 308) ... ok
[INFO] [stdout] test src/drc.rs - drc::Drc<T>::try_unwrap (line 150) ... ok
[INFO] [stdout] test src/drc.rs - drc::Drc<T>::separate (line 120) ... ok
[INFO] [stdout] test src/weak.rs - weak::Weak<T>::default (line 417) ... ok
[INFO] [stdout] test src/drc.rs - drc::Drc<T>::ptr_eq (line 403) ... ok
[INFO] [stdout] test src/drc.rs - drc::Drc<T>::weak_count (line 258) ... ok
[INFO] [stdout] test src/weak.rs - weak::Weak<T>::detach (line 250) ... ok
[INFO] [stdout] test src/drc.rs - drc::Drc<T>::partial_cmp (line 1088) ... ok
[INFO] [stdout] test src/weak.rs - weak::Weak<T>::clone (line 336) ... ok
[INFO] [stdout] test src/weak.rs - weak::Weak<T>::upgrade (line 173) ... ok
[INFO] [stdout] test src/weak.rs - weak::Weak<T>::with_weak_arc (line 123) ... ok
[INFO] [stdout] test src/weak.rs - weak::Weak<T>::new (line 87) ... ok
[INFO] [stdout] test src/weak.rs - weak::Weak<T>::drop (line 357) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 30 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 2.94s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a397f5937ec50ccb76a6478fe52576c6809657701e93a07f8145c23f3ce9324c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a397f5937ec50ccb76a6478fe52576c6809657701e93a07f8145c23f3ce9324c", kill_on_drop: false }`
[INFO] [stdout] a397f5937ec50ccb76a6478fe52576c6809657701e93a07f8145c23f3ce9324c