[INFO] fetching crate hand_indexer 0.1.2...
[INFO] checking hand_indexer-0.1.2 against beta-2021-10-15 for beta-1.56-3
[INFO] extracting crate hand_indexer 0.1.2 into /workspace/builds/worker-105/source
[INFO] validating manifest of crates.io crate hand_indexer 0.1.2 on toolchain beta-2021-10-15
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate hand_indexer 0.1.2
[INFO] finished tweaking crates.io crate hand_indexer 0.1.2
[INFO] tweaked toml for crates.io crate hand_indexer 0.1.2 written to /workspace/builds/worker-105/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "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" "+beta-2021-10-15" "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-105/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-10-15" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 476d6de5fc9991873f9b898335dbc9fa606fcb3034d2f5abff8587b90568dd6a
[INFO] running `Command { std: "docker" "start" "-a" "476d6de5fc9991873f9b898335dbc9fa606fcb3034d2f5abff8587b90568dd6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "476d6de5fc9991873f9b898335dbc9fa606fcb3034d2f5abff8587b90568dd6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "476d6de5fc9991873f9b898335dbc9fa606fcb3034d2f5abff8587b90568dd6a", kill_on_drop: false }`
[INFO] [stdout] 476d6de5fc9991873f9b898335dbc9fa606fcb3034d2f5abff8587b90568dd6a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-10-15" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 46560f21c61ffb2d6a0692b10f12bedafcddc007d2091500b926775490f139d5
[INFO] running `Command { std: "docker" "start" "-a" "46560f21c61ffb2d6a0692b10f12bedafcddc007d2091500b926775490f139d5", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling gimli v0.25.0
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling rustc-demangle v0.1.21
[INFO] [stderr]    Compiling unicode-width v0.1.9
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling bindgen v0.49.4
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling shlex v0.1.1
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling backtrace v0.3.61
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]    Compiling cmake v0.1.46
[INFO] [stderr]    Compiling libc v0.2.103
[INFO] [stderr]    Compiling humantime v1.3.0
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling fxhash v0.2.1
[INFO] [stderr]    Compiling clang-sys v0.28.1
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling object v0.26.2
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling cexpr v0.3.6
[INFO] [stderr]    Compiling addr2line v0.16.0
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling env_logger v0.6.2
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling which v2.0.1
[INFO] [stderr]    Compiling hand_indexer v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: dereferencing a null pointer
[INFO] [stdout]  --> /opt/rustwide/target/debug/build/hand_indexer-bbdc4d15d53a8d9b/out/bindings.rs:3:15501
[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/hand_indexer-bbdc4d15d53a8d9b/out/bindings.rs:3:18594
[INFO] [stdout]   |
[INFO] [stdout] 3 | ... ! ( unsafe { & ( * ( :: std :: ptr :: null :: < imaxdiv_t > ( ) ) ) . quot as * const _ as usize } , 0usize , concat ! ( "Offset of f...
[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/hand_indexer-bbdc4d15d53a8d9b/out/bindings.rs:3:18809
[INFO] [stdout]   |
[INFO] [stdout] 3 | ... ! ( unsafe { & ( * ( :: std :: ptr :: null :: < imaxdiv_t > ( ) ) ) . rem as * const _ as usize } , 8usize , concat ! ( "Offset of fi...
[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/hand_indexer-bbdc4d15d53a8d9b/out/bindings.rs:3:20490
[INFO] [stdout]   |
[INFO] [stdout] 3 | ...! ( unsafe { & ( * ( :: std :: ptr :: null :: < max_align_t > ( ) ) ) . __clang_max_align_nonce1 as * const _ as usize } , 0usize , co...
[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/hand_indexer-bbdc4d15d53a8d9b/out/bindings.rs:3:20749
[INFO] [stdout]   |
[INFO] [stdout] 3 | ...! ( unsafe { & ( * ( :: std :: ptr :: null :: < max_align_t > ( ) ) ) . __clang_max_align_nonce2 as * const _ as usize } , 16usize , c...
[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/hand_indexer-bbdc4d15d53a8d9b/out/bindings.rs:3:25427
[INFO] [stdout]   |
[INFO] [stdout] 3 | ...( unsafe { & ( * ( :: std :: ptr :: null :: < hand_indexer_s > ( ) ) ) . cards_per_round as * const _ as usize } , 0usize , concat ! (...
[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/hand_indexer-bbdc4d15d53a8d9b/out/bindings.rs:3:25674
[INFO] [stdout]   |
[INFO] [stdout] 3 | ...( unsafe { & ( * ( :: std :: ptr :: null :: < hand_indexer_s > ( ) ) ) . round_start as * const _ as usize } , 8usize , concat ! ( "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/hand_indexer-bbdc4d15d53a8d9b/out/bindings.rs:3:25913
[INFO] [stdout]   |
[INFO] [stdout] 3 | ...( unsafe { & ( * ( :: std :: ptr :: null :: < hand_indexer_s > ( ) ) ) . rounds as * const _ as usize } , 16usize , 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/hand_indexer-bbdc4d15d53a8d9b/out/bindings.rs:3:26143
[INFO] [stdout]   |
[INFO] [stdout] 3 | ...( unsafe { & ( * ( :: std :: ptr :: null :: < hand_indexer_s > ( ) ) ) . configurations as * const _ as usize } , 24usize , concat ! (...
[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/hand_indexer-bbdc4d15d53a8d9b/out/bindings.rs:3:26389
[INFO] [stdout]   |
[INFO] [stdout] 3 | ...( unsafe { & ( * ( :: std :: ptr :: null :: < hand_indexer_s > ( ) ) ) . permutations as * const _ as usize } , 88usize , concat ! ( "...
[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/hand_indexer-bbdc4d15d53a8d9b/out/bindings.rs:3:26631
[INFO] [stdout]   |
[INFO] [stdout] 3 | ...( unsafe { & ( * ( :: std :: ptr :: null :: < hand_indexer_s > ( ) ) ) . round_size as * const _ as usize } , 152usize , concat ! ( "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/hand_indexer-bbdc4d15d53a8d9b/out/bindings.rs:3:26870
[INFO] [stdout]   |
[INFO] [stdout] 3 | ...( unsafe { & ( * ( :: std :: ptr :: null :: < hand_indexer_s > ( ) ) ) . permutation_to_configuration as * const _ as usize } , 216usi...
[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/hand_indexer-bbdc4d15d53a8d9b/out/bindings.rs:3:27145
[INFO] [stdout]   |
[INFO] [stdout] 3 | ...( unsafe { & ( * ( :: std :: ptr :: null :: < hand_indexer_s > ( ) ) ) . permutation_to_pi as * const _ as usize } , 280usize , concat...
[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/hand_indexer-bbdc4d15d53a8d9b/out/bindings.rs:3:27398
[INFO] [stdout]   |
[INFO] [stdout] 3 | ...( unsafe { & ( * ( :: std :: ptr :: null :: < hand_indexer_s > ( ) ) ) . configuration_to_equal as * const _ as usize } , 344usize , c...
[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/hand_indexer-bbdc4d15d53a8d9b/out/bindings.rs:3:27661
[INFO] [stdout]   |
[INFO] [stdout] 3 | ...( unsafe { & ( * ( :: std :: ptr :: null :: < hand_indexer_s > ( ) ) ) . configuration as * const _ as usize } , 408usize , concat ! (...
[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/hand_indexer-bbdc4d15d53a8d9b/out/bindings.rs:3:27906
[INFO] [stdout]   |
[INFO] [stdout] 3 | ...( unsafe { & ( * ( :: std :: ptr :: null :: < hand_indexer_s > ( ) ) ) . configuration_to_suit_size as * const _ as usize } , 472usize...
[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/hand_indexer-bbdc4d15d53a8d9b/out/bindings.rs:3:28177
[INFO] [stdout]   |
[INFO] [stdout] 3 | ...( unsafe { & ( * ( :: std :: ptr :: null :: < hand_indexer_s > ( ) ) ) . configuration_to_offset as * const _ as usize } , 536usize , ...
[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/hand_indexer-bbdc4d15d53a8d9b/out/bindings.rs:3:29149
[INFO] [stdout]   |
[INFO] [stdout] 3 | ...nsafe { & ( * ( :: std :: ptr :: null :: < hand_indexer_state_s > ( ) ) ) . suit_index as * const _ as usize } , 0usize , concat ! ( "...
[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/hand_indexer-bbdc4d15d53a8d9b/out/bindings.rs:3:29398
[INFO] [stdout]   |
[INFO] [stdout] 3 | ...nsafe { & ( * ( :: std :: ptr :: null :: < hand_indexer_state_s > ( ) ) ) . suit_multiplier as * const _ as usize } , 32usize , concat...
[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/hand_indexer-bbdc4d15d53a8d9b/out/bindings.rs:3:29658
[INFO] [stdout]   |
[INFO] [stdout] 3 | ...nsafe { & ( * ( :: std :: ptr :: null :: < hand_indexer_state_s > ( ) ) ) . round as * const _ as usize } , 64usize , 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/hand_indexer-bbdc4d15d53a8d9b/out/bindings.rs:3:29898
[INFO] [stdout]   |
[INFO] [stdout] 3 | ...nsafe { & ( * ( :: std :: ptr :: null :: < hand_indexer_state_s > ( ) ) ) . permutation_index as * const _ as usize } , 72usize , conc...
[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/hand_indexer-bbdc4d15d53a8d9b/out/bindings.rs:3:30162
[INFO] [stdout]   |
[INFO] [stdout] 3 | ...nsafe { & ( * ( :: std :: ptr :: null :: < hand_indexer_state_s > ( ) ) ) . permutation_multiplier as * const _ as usize } , 80usize ,...
[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/hand_indexer-bbdc4d15d53a8d9b/out/bindings.rs:3:30436
[INFO] [stdout]   |
[INFO] [stdout] 3 | ...nsafe { & ( * ( :: std :: ptr :: null :: < hand_indexer_state_s > ( ) ) ) . used_ranks as * const _ as usize } , 88usize , concat ! ( ...
[INFO] [stdout]   |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 23 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 35.25s
[INFO] running `Command { std: "docker" "inspect" "46560f21c61ffb2d6a0692b10f12bedafcddc007d2091500b926775490f139d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46560f21c61ffb2d6a0692b10f12bedafcddc007d2091500b926775490f139d5", kill_on_drop: false }`
[INFO] [stdout] 46560f21c61ffb2d6a0692b10f12bedafcddc007d2091500b926775490f139d5
