[INFO] fetching crate bchlib-sys 0.2.1...
[INFO] building bchlib-sys-0.2.1 against master#ff34b919075f35a1787659e9c448a34b06bab8de for issue-85264
[INFO] extracting crate bchlib-sys 0.2.1 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate bchlib-sys 0.2.1 on toolchain ff34b919075f35a1787659e9c448a34b06bab8de
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bchlib-sys 0.2.1
[INFO] finished tweaking crates.io crate bchlib-sys 0.2.1
[INFO] tweaked toml for crates.io crate bchlib-sys 0.2.1 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 73c4f6f0d091ac5126038f7dbb9c8c8b66338f1d5aaf6734e5f6979fc64c30c2
[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" "73c4f6f0d091ac5126038f7dbb9c8c8b66338f1d5aaf6734e5f6979fc64c30c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "73c4f6f0d091ac5126038f7dbb9c8c8b66338f1d5aaf6734e5f6979fc64c30c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "73c4f6f0d091ac5126038f7dbb9c8c8b66338f1d5aaf6734e5f6979fc64c30c2", kill_on_drop: false }`
[INFO] [stdout] 73c4f6f0d091ac5126038f7dbb9c8c8b66338f1d5aaf6734e5f6979fc64c30c2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7b55a6e6486916ac52ce55df32dcb33c6ac4e7257c29616ad7ca76614086c708
[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" "7b55a6e6486916ac52ce55df32dcb33c6ac4e7257c29616ad7ca76614086c708", kill_on_drop: false }`
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling bindgen v0.42.3
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]    Compiling clang-sys v0.26.4
[INFO] [stderr]    Compiling proc-macro2 v0.3.5
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling which v1.0.5
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling env_logger v0.5.13
[INFO] [stderr]    Compiling quote v0.5.2
[INFO] [stderr]    Compiling cexpr v0.3.6
[INFO] [stderr]    Compiling bchlib-sys v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: src/bch/bch.c: In function 'unpack_eccbits':
[INFO] [stderr] warning: src/bch/bch.c:1410:15: warning: comparison of integer expressions of different signedness: 'int' and 'unsigned int' [-Wsign-compare]
[INFO] [stderr] warning:  1410 |     for (k=0;k<bch->ecc_bits;++k)
[INFO] [stderr] warning:       |               ^
[INFO] [stderr] warning: src/bch/bch.c: In function 'pack_eccbits':
[INFO] [stderr] warning: src/bch/bch.c:1422:15: warning: comparison of integer expressions of different signedness: 'int' and 'unsigned int' [-Wsign-compare]
[INFO] [stderr] warning:  1422 |     for (k=0;k<bch->ecc_bits;++k) {
[INFO] [stderr] warning:       |               ^
[INFO] [stderr] warning: src/bch/bch.c: In function 'correct_bch':
[INFO] [stderr] warning: src/bch/bch.c:1503:22: warning: comparison of integer expressions of different signedness: 'int' and 'unsigned int' [-Wsign-compare]
[INFO] [stderr] warning:  1503 |         if ( (bi>>3) < len)
[INFO] [stderr] warning:       |                      ^
[INFO] [stderr] warning: src/bch/bch.c:1498:38: warning: unused parameter 'bch' [-Wunused-parameter]
[INFO] [stderr] warning:  1498 | void correct_bch(struct bch_control *bch, uint8_t *data, unsigned int len,unsigned int *errloc, int nerr)
[INFO] [stderr] warning:       |                  ~~~~~~~~~~~~~~~~~~~~^~~
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.50s
[INFO] running `Command { std: "docker" "inspect" "7b55a6e6486916ac52ce55df32dcb33c6ac4e7257c29616ad7ca76614086c708", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b55a6e6486916ac52ce55df32dcb33c6ac4e7257c29616ad7ca76614086c708", kill_on_drop: false }`
[INFO] [stdout] 7b55a6e6486916ac52ce55df32dcb33c6ac4e7257c29616ad7ca76614086c708
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 84f1be4d2a6b70ca7ed544f6eaac5beeb5e26a656f33ab79fcf5e1c54e1d81de
[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" "84f1be4d2a6b70ca7ed544f6eaac5beeb5e26a656f33ab79fcf5e1c54e1d81de", kill_on_drop: false }`
[INFO] [stderr] warning: src/bch/bch.c: In function 'unpack_eccbits':
[INFO] [stderr] warning: src/bch/bch.c:1410:15: warning: comparison of integer expressions of different signedness: 'int' and 'unsigned int' [-Wsign-compare]
[INFO] [stderr] warning:  1410 |     for (k=0;k<bch->ecc_bits;++k)
[INFO] [stderr] warning:       |               ^
[INFO] [stderr] warning: src/bch/bch.c: In function 'pack_eccbits':
[INFO] [stderr] warning: src/bch/bch.c:1422:15: warning: comparison of integer expressions of different signedness: 'int' and 'unsigned int' [-Wsign-compare]
[INFO] [stderr] warning:  1422 |     for (k=0;k<bch->ecc_bits;++k) {
[INFO] [stderr] warning:       |               ^
[INFO] [stderr] warning: src/bch/bch.c: In function 'correct_bch':
[INFO] [stderr] warning: src/bch/bch.c:1503:22: warning: comparison of integer expressions of different signedness: 'int' and 'unsigned int' [-Wsign-compare]
[INFO] [stderr] warning:  1503 |         if ( (bi>>3) < len)
[INFO] [stderr] warning:       |                      ^
[INFO] [stderr] warning: src/bch/bch.c:1498:38: warning: unused parameter 'bch' [-Wunused-parameter]
[INFO] [stderr] warning:  1498 | void correct_bch(struct bch_control *bch, uint8_t *data, unsigned int len,unsigned int *errloc, int nerr)
[INFO] [stderr] warning:       |                  ~~~~~~~~~~~~~~~~~~~~^~~
[INFO] [stderr]    Compiling bchlib-sys v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: dereferencing a null pointer
[INFO] [stdout]  --> /opt/rustwide/target/debug/build/bchlib-sys-01f50a704d3f9a1b/out/bindings.rs:3:5986
[INFO] [stdout]   |
[INFO] [stdout] 3 | ... ! ( unsafe { & ( * ( :: std :: ptr :: null :: < __fsid_t > ( ) ) ) . __val as * const _ as usize } , 0usize , concat ! ( "Offset of f...
[INFO] [stdout]   |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deref_nullptr)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: dereferencing a null pointer
[INFO] [stdout]   --> /opt/rustwide/target/debug/build/bchlib-sys-01f50a704d3f9a1b/out/bindings.rs:20:1025
[INFO] [stdout]    |
[INFO] [stdout] 20 | ...! ( unsafe { & ( * ( :: std :: ptr :: null :: < bch_control > ( ) ) ) . m as * const _ as usize } , 0usize , concat ! ( "Offset of fie...
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: dereferencing a null pointer
[INFO] [stdout]   --> /opt/rustwide/target/debug/build/bchlib-sys-01f50a704d3f9a1b/out/bindings.rs:20:1238
[INFO] [stdout]    |
[INFO] [stdout] 20 | ...! ( unsafe { & ( * ( :: std :: ptr :: null :: < bch_control > ( ) ) ) . n as * const _ as usize } , 4usize , concat ! ( "Offset of fie...
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: dereferencing a null pointer
[INFO] [stdout]   --> /opt/rustwide/target/debug/build/bchlib-sys-01f50a704d3f9a1b/out/bindings.rs:20:1451
[INFO] [stdout]    |
[INFO] [stdout] 20 | ...! ( unsafe { & ( * ( :: std :: ptr :: null :: < bch_control > ( ) ) ) . t as * const _ as usize } , 8usize , concat ! ( "Offset of fie...
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: dereferencing a null pointer
[INFO] [stdout]   --> /opt/rustwide/target/debug/build/bchlib-sys-01f50a704d3f9a1b/out/bindings.rs:20:1664
[INFO] [stdout]    |
[INFO] [stdout] 20 | ...! ( unsafe { & ( * ( :: std :: ptr :: null :: < bch_control > ( ) ) ) . ecc_bits as * const _ as usize } , 12usize , concat ! ( "Offse...
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: dereferencing a null pointer
[INFO] [stdout]   --> /opt/rustwide/target/debug/build/bchlib-sys-01f50a704d3f9a1b/out/bindings.rs:20:1892
[INFO] [stdout]    |
[INFO] [stdout] 20 | ...! ( unsafe { & ( * ( :: std :: ptr :: null :: < bch_control > ( ) ) ) . ecc_bytes as * const _ as usize } , 16usize , concat ! ( "Offs...
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: dereferencing a null pointer
[INFO] [stdout]   --> /opt/rustwide/target/debug/build/bchlib-sys-01f50a704d3f9a1b/out/bindings.rs:20:2122
[INFO] [stdout]    |
[INFO] [stdout] 20 | ...! ( unsafe { & ( * ( :: std :: ptr :: null :: < bch_control > ( ) ) ) . a_pow_tab as * const _ as usize } , 24usize , concat ! ( "Offs...
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: dereferencing a null pointer
[INFO] [stdout]   --> /opt/rustwide/target/debug/build/bchlib-sys-01f50a704d3f9a1b/out/bindings.rs:20:2352
[INFO] [stdout]    |
[INFO] [stdout] 20 | ...! ( unsafe { & ( * ( :: std :: ptr :: null :: < bch_control > ( ) ) ) . a_log_tab as * const _ as usize } , 32usize , concat ! ( "Offs...
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: dereferencing a null pointer
[INFO] [stdout]   --> /opt/rustwide/target/debug/build/bchlib-sys-01f50a704d3f9a1b/out/bindings.rs:20:2582
[INFO] [stdout]    |
[INFO] [stdout] 20 | ...! ( unsafe { & ( * ( :: std :: ptr :: null :: < bch_control > ( ) ) ) . mod8_tab as * const _ as usize } , 40usize , concat ! ( "Offse...
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: dereferencing a null pointer
[INFO] [stdout]   --> /opt/rustwide/target/debug/build/bchlib-sys-01f50a704d3f9a1b/out/bindings.rs:20:2810
[INFO] [stdout]    |
[INFO] [stdout] 20 | ...! ( unsafe { & ( * ( :: std :: ptr :: null :: < bch_control > ( ) ) ) . ecc_buf as * const _ as usize } , 48usize , concat ! ( "Offset...
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: dereferencing a null pointer
[INFO] [stdout]   --> /opt/rustwide/target/debug/build/bchlib-sys-01f50a704d3f9a1b/out/bindings.rs:20:3036
[INFO] [stdout]    |
[INFO] [stdout] 20 | ...! ( unsafe { & ( * ( :: std :: ptr :: null :: < bch_control > ( ) ) ) . ecc_buf2 as * const _ as usize } , 56usize , concat ! ( "Offse...
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: dereferencing a null pointer
[INFO] [stdout]   --> /opt/rustwide/target/debug/build/bchlib-sys-01f50a704d3f9a1b/out/bindings.rs:20:3264
[INFO] [stdout]    |
[INFO] [stdout] 20 | ...! ( unsafe { & ( * ( :: std :: ptr :: null :: < bch_control > ( ) ) ) . xi_tab as * const _ as usize } , 64usize , concat ! ( "Offset ...
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: dereferencing a null pointer
[INFO] [stdout]   --> /opt/rustwide/target/debug/build/bchlib-sys-01f50a704d3f9a1b/out/bindings.rs:20:3488
[INFO] [stdout]    |
[INFO] [stdout] 20 | ...! ( unsafe { & ( * ( :: std :: ptr :: null :: < bch_control > ( ) ) ) . syn as * const _ as usize } , 72usize , concat ! ( "Offset of ...
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: dereferencing a null pointer
[INFO] [stdout]   --> /opt/rustwide/target/debug/build/bchlib-sys-01f50a704d3f9a1b/out/bindings.rs:20:3706
[INFO] [stdout]    |
[INFO] [stdout] 20 | ...! ( unsafe { & ( * ( :: std :: ptr :: null :: < bch_control > ( ) ) ) . cache as * const _ as usize } , 80usize , concat ! ( "Offset o...
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: dereferencing a null pointer
[INFO] [stdout]   --> /opt/rustwide/target/debug/build/bchlib-sys-01f50a704d3f9a1b/out/bindings.rs:20:3928
[INFO] [stdout]    |
[INFO] [stdout] 20 | ...! ( unsafe { & ( * ( :: std :: ptr :: null :: < bch_control > ( ) ) ) . elp as * const _ as usize } , 88usize , concat ! ( "Offset of ...
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: dereferencing a null pointer
[INFO] [stdout]   --> /opt/rustwide/target/debug/build/bchlib-sys-01f50a704d3f9a1b/out/bindings.rs:20:4146
[INFO] [stdout]    |
[INFO] [stdout] 20 | ...! ( unsafe { & ( * ( :: std :: ptr :: null :: < bch_control > ( ) ) ) . poly_2t as * const _ as usize } , 96usize , concat ! ( "Offset...
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: dereferencing a null pointer
[INFO] [stdout]   --> /opt/rustwide/target/debug/build/bchlib-sys-01f50a704d3f9a1b/out/bindings.rs:20:4372
[INFO] [stdout]    |
[INFO] [stdout] 20 | ...! ( unsafe { & ( * ( :: std :: ptr :: null :: < bch_control > ( ) ) ) . databuf as * const _ as usize } , 128usize , concat ! ( "Offse...
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 17 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.33s
[INFO] running `Command { std: "docker" "inspect" "84f1be4d2a6b70ca7ed544f6eaac5beeb5e26a656f33ab79fcf5e1c54e1d81de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84f1be4d2a6b70ca7ed544f6eaac5beeb5e26a656f33ab79fcf5e1c54e1d81de", kill_on_drop: false }`
[INFO] [stdout] 84f1be4d2a6b70ca7ed544f6eaac5beeb5e26a656f33ab79fcf5e1c54e1d81de
