[INFO] fetching crate vsdbsled 0.34.7-p1...
[INFO] testing vsdbsled-0.34.7-p1 against beta-2023-04-20 for beta-1.70-1
[INFO] extracting crate vsdbsled 0.34.7-p1 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate vsdbsled 0.34.7-p1 on toolchain beta-2023-04-20
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-04-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate vsdbsled 0.34.7-p1
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate vsdbsled 0.34.7-p1
[INFO] tweaked toml for crates.io crate vsdbsled 0.34.7-p1 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate crates.io crate vsdbsled 0.34.7-p1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-04-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: version requirement `0.11.1+zstd.1.5.2` for dependency `zstd` includes semver metadata which will be ignored, removing the metadata is recommended to avoid confusion
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded zerocopy v0.3.0
[INFO] [stderr]   Downloaded rio v0.9.4
[INFO] [stderr]   Downloaded color-backtrace v0.5.1
[INFO] [stderr]   Downloaded backtrace v0.3.64
[INFO] [stderr]   Downloaded fs4 v0.5.4
[INFO] [stderr]   Downloaded zstd-safe v5.0.1+zstd.1.5.2
[INFO] [stderr]   Downloaded zstd v0.11.1+zstd.1.5.2
[INFO] [stderr]   Downloaded zerocopy-derive v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9b2727c1843e55e24e1fa38edbacc78453e8659d6f832ee23f19b1b40a83e7d3
[INFO] running `Command { std: "docker" "start" "-a" "9b2727c1843e55e24e1fa38edbacc78453e8659d6f832ee23f19b1b40a83e7d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9b2727c1843e55e24e1fa38edbacc78453e8659d6f832ee23f19b1b40a83e7d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b2727c1843e55e24e1fa38edbacc78453e8659d6f832ee23f19b1b40a83e7d3", kill_on_drop: false }`
[INFO] [stdout] 9b2727c1843e55e24e1fa38edbacc78453e8659d6f832ee23f19b1b40a83e7d3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5c799cfecc835c7274f956cb0c48266c0e54dc1d3b55be999e6ff354eb6fd0a2
[INFO] running `Command { std: "docker" "start" "-a" "5c799cfecc835c7274f956cb0c48266c0e54dc1d3b55be999e6ff354eb6fd0a2", kill_on_drop: false }`
[INFO] [stderr] warning: version requirement `0.11.1+zstd.1.5.2` for dependency `zstd` includes semver metadata which will be ignored, removing the metadata is recommended to avoid confusion
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling libc v0.2.121
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling lock_api v0.4.7
[INFO] [stderr]    Compiling crossbeam-utils v0.8.8
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling parking_lot_core v0.9.2
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.8
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling log v0.4.16
[INFO] [stderr]    Compiling smallvec v1.8.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling fxhash v0.2.1
[INFO] [stderr]    Compiling fs4 v0.5.4
[INFO] [stderr]    Compiling parking_lot v0.12.0
[INFO] [stderr]    Compiling vsdbsled v0.34.7-p1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]    --> src/config.rs:276:15
[INFO] [stdout]     |
[INFO] [stdout] 276 |         <T as std::convert::TryFrom<usize>>::Error: Debug,
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:95:5
[INFO] [stdout]     |
[INFO] [stdout] 95  |     unused_qualifications
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T>::from_raw` that must be used
[INFO] [stdout]    --> src/arc.rs:156:17
[INFO] [stdout]     |
[INFO] [stdout] 156 |                 Box::from_raw(self.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] 156 |                 let _ = Box::from_raw(self.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/lru.rs:130:13
[INFO] [stdout]     |
[INFO] [stdout] 130 |             Box::from_raw(writing);
[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] 130 |             let _ = Box::from_raw(writing);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T>::from_raw` that must be used
[INFO] [stdout]    --> src/lru.rs:139:17
[INFO] [stdout]     |
[INFO] [stdout] 139 |                 Box::from_raw(head);
[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] 139 |                 let _ = Box::from_raw(head);
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.34s
[INFO] running `Command { std: "docker" "inspect" "5c799cfecc835c7274f956cb0c48266c0e54dc1d3b55be999e6ff354eb6fd0a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c799cfecc835c7274f956cb0c48266c0e54dc1d3b55be999e6ff354eb6fd0a2", kill_on_drop: false }`
[INFO] [stdout] 5c799cfecc835c7274f956cb0c48266c0e54dc1d3b55be999e6ff354eb6fd0a2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a2118c1e8421cb7a58e0183c7680005d667246265fbf830ce01409ddfb64ab08
[INFO] running `Command { std: "docker" "start" "-a" "a2118c1e8421cb7a58e0183c7680005d667246265fbf830ce01409ddfb64ab08", kill_on_drop: false }`
[INFO] [stderr] warning: version requirement `0.11.1+zstd.1.5.2` for dependency `zstd` includes semver metadata which will be ignored, removing the metadata is recommended to avoid confusion
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling log v0.4.16
[INFO] [stderr]    Compiling syn v1.0.90
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling libm v0.2.2
[INFO] [stderr]    Compiling ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling termcolor v1.1.3
[INFO] [stderr]    Compiling humantime v2.1.0
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling vsdbsled v0.34.7-p1 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]    --> src/config.rs:276:15
[INFO] [stdout]     |
[INFO] [stdout] 276 |         <T as std::convert::TryFrom<usize>>::Error: Debug,
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:95:5
[INFO] [stdout]     |
[INFO] [stdout] 95  |     unused_qualifications
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling quote v1.0.17
[INFO] [stderr]    Compiling rand_distr v0.3.0
[INFO] [stderr]    Compiling regex v1.5.5
[INFO] [stdout] warning: unused return value of `Box::<T>::from_raw` that must be used
[INFO] [stdout]    --> src/arc.rs:156:17
[INFO] [stdout]     |
[INFO] [stdout] 156 |                 Box::from_raw(self.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] 156 |                 let _ = Box::from_raw(self.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/lru.rs:130:13
[INFO] [stdout]     |
[INFO] [stdout] 130 |             Box::from_raw(writing);
[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] 130 |             let _ = Box::from_raw(writing);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T>::from_raw` that must be used
[INFO] [stdout]    --> src/lru.rs:139:17
[INFO] [stdout]     |
[INFO] [stdout] 139 |                 Box::from_raw(head);
[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] 139 |                 let _ = Box::from_raw(head);
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling env_logger v0.8.4
[INFO] [stderr]    Compiling quickcheck v0.9.2
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling zerocopy-derive v0.2.0
[INFO] [stderr]    Compiling zerocopy v0.3.0
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: please run tests using the "testing" feature, which enables additional checks at runtime and causes more race conditions to jump out by inserting delays in concurrent code.
[INFO] [stdout]  --> tests/common/mod.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | / compile_error!(
[INFO] [stdout] 3 | |     "please run tests using the \"testing\" feature, \
[INFO] [stdout] 4 | |      which enables additional checks at runtime and \
[INFO] [stdout] 5 | |      causes more race conditions to jump out by \
[INFO] [stdout] 6 | |      inserting delays in concurrent code."
[INFO] [stdout] 7 | | );
[INFO] [stdout]   | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: please run tests using the "testing" feature, which enables additional checks at runtime and causes more race conditions to jump out by inserting delays in concurrent code.
[INFO] [stdout]  --> tests/common/mod.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | / compile_error!(
[INFO] [stdout] 3 | |     "please run tests using the \"testing\" feature, \
[INFO] [stdout] 4 | |      which enables additional checks at runtime and \
[INFO] [stdout] 5 | |      causes more race conditions to jump out by \
[INFO] [stdout] 6 | |      inserting delays in concurrent code."
[INFO] [stdout] 7 | | );
[INFO] [stdout]   | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: please run tests using the "testing" feature, which enables additional checks at runtime and causes more race conditions to jump out by inserting delays in concurrent code.
[INFO] [stdout]  --> tests/common/mod.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | / compile_error!(
[INFO] [stdout] 3 | |     "please run tests using the \"testing\" feature, \
[INFO] [stdout] 4 | |      which enables additional checks at runtime and \
[INFO] [stdout] 5 | |      causes more race conditions to jump out by \
[INFO] [stdout] 6 | |      inserting delays in concurrent code."
[INFO] [stdout] 7 | | );
[INFO] [stdout]   | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: please run tests using the "testing" feature, which enables additional checks at runtime and causes more race conditions to jump out by inserting delays in concurrent code.
[INFO] [stdout]  --> tests/common/mod.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | / compile_error!(
[INFO] [stdout] 3 | |     "please run tests using the \"testing\" feature, \
[INFO] [stdout] 4 | |      which enables additional checks at runtime and \
[INFO] [stdout] 5 | |      causes more race conditions to jump out by \
[INFO] [stdout] 6 | |      inserting delays in concurrent code."
[INFO] [stdout] 7 | | );
[INFO] [stdout]   | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: please run tests using the "testing" feature, which enables additional checks at runtime and causes more race conditions to jump out by inserting delays in concurrent code.
[INFO] [stdout]  --> tests/common/mod.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | / compile_error!(
[INFO] [stdout] 3 | |     "please run tests using the \"testing\" feature, \
[INFO] [stdout] 4 | |      which enables additional checks at runtime and \
[INFO] [stdout] 5 | |      causes more race conditions to jump out by \
[INFO] [stdout] 6 | |      inserting delays in concurrent code."
[INFO] [stdout] 7 | | );
[INFO] [stdout]   | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `vsdbsled` (test "test_space_leaks") due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `vsdbsled` (test "test_quiescent") due to 2 previous errors
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `vsdbsled` (test "test_log") due to 2 previous errors
[INFO] [stderr] error: could not compile `vsdbsled` (test "test_crash_recovery") due to 2 previous errors
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]    --> src/config.rs:276:15
[INFO] [stdout]     |
[INFO] [stdout] 276 |         <T as std::convert::TryFrom<usize>>::Error: Debug,
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:95:5
[INFO] [stdout]     |
[INFO] [stdout] 95  |     unused_qualifications
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `vsdbsled` (test "test_tree") due to 2 previous errors
[INFO] [stdout] warning: unused return value of `Box::<T>::from_raw` that must be used
[INFO] [stdout]    --> src/arc.rs:156:17
[INFO] [stdout]     |
[INFO] [stdout] 156 |                 Box::from_raw(self.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] 156 |                 let _ = Box::from_raw(self.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/lru.rs:130:13
[INFO] [stdout]     |
[INFO] [stdout] 130 |             Box::from_raw(writing);
[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] 130 |             let _ = Box::from_raw(writing);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T>::from_raw` that must be used
[INFO] [stdout]    --> src/lru.rs:139:17
[INFO] [stdout]     |
[INFO] [stdout] 139 |                 Box::from_raw(head);
[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] 139 |                 let _ = Box::from_raw(head);
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a2118c1e8421cb7a58e0183c7680005d667246265fbf830ce01409ddfb64ab08", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2118c1e8421cb7a58e0183c7680005d667246265fbf830ce01409ddfb64ab08", kill_on_drop: false }`
[INFO] [stdout] a2118c1e8421cb7a58e0183c7680005d667246265fbf830ce01409ddfb64ab08
