[INFO] fetching crate bitcoin-imports 0.1.12-alpha.0...
[INFO] building bitcoin-imports-0.1.12-alpha.0 against try#0179c3cb935eb588d407cb784f436ae84d99db5c for pr-107620-1
[INFO] extracting crate bitcoin-imports 0.1.12-alpha.0 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate bitcoin-imports 0.1.12-alpha.0 on toolchain 0179c3cb935eb588d407cb784f436ae84d99db5c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0179c3cb935eb588d407cb784f436ae84d99db5c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bitcoin-imports 0.1.12-alpha.0
[INFO] finished tweaking crates.io crate bitcoin-imports 0.1.12-alpha.0
[INFO] tweaked toml for crates.io crate bitcoin-imports 0.1.12-alpha.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" __CARGO_TEST_CHANNEL_OVERRIDE_DO_NOT_USE_THIS="nightly" "/workspace/cargo-home/bin/cargo" "+0179c3cb935eb588d407cb784f436ae84d99db5c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0179c3cb935eb588d407cb784f436ae84d99db5c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:3d532c2baa59a8a48e45c3be7eb049f77ac5a58a7a6514a58a8e878df1c3d03d" "/opt/rustwide/cargo-home/bin/cargo" "+0179c3cb935eb588d407cb784f436ae84d99db5c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1c50118fdf84a371145e653d48dac615edb9da2f0bdc7501172e05391e1d4879
[INFO] running `Command { std: "docker" "start" "-a" "1c50118fdf84a371145e653d48dac615edb9da2f0bdc7501172e05391e1d4879", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1c50118fdf84a371145e653d48dac615edb9da2f0bdc7501172e05391e1d4879", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c50118fdf84a371145e653d48dac615edb9da2f0bdc7501172e05391e1d4879", kill_on_drop: false }`
[INFO] [stdout] 1c50118fdf84a371145e653d48dac615edb9da2f0bdc7501172e05391e1d4879
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:3d532c2baa59a8a48e45c3be7eb049f77ac5a58a7a6514a58a8e878df1c3d03d" "/opt/rustwide/cargo-home/bin/cargo" "+0179c3cb935eb588d407cb784f436ae84d99db5c" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 40f43b325d18dc3960b97560608b93cc1b6cac3b2cd952aa544cbfae0ebb0d65
[INFO] running `Command { std: "docker" "start" "-a" "40f43b325d18dc3960b97560608b93cc1b6cac3b2cd952aa544cbfae0ebb0d65", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling unicode-xid v0.2.4
[INFO] [stderr]    Compiling serde v1.0.152
[INFO] [stderr]    Compiling either v1.8.1
[INFO] [stderr]    Compiling backtrace v0.3.67
[INFO] [stderr]    Compiling gimli v0.27.1
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling rustc-demangle v0.1.21
[INFO] [stderr]    Compiling getrandom v0.2.8
[INFO] [stderr]    Compiling object v0.30.3
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling term v0.4.6
[INFO] [stderr]    Compiling shell-words v0.1.0
[INFO] [stderr]    Compiling dunce v1.0.3
[INFO] [stderr]    Compiling pathdiff v0.1.0
[INFO] [stderr]    Compiling miniz_oxide v0.6.2
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling crossbeam-utils v0.8.14
[INFO] [stderr]    Compiling term-painter v0.2.4
[INFO] [stderr]    Compiling os_str_bytes v6.4.1
[INFO] [stderr]    Compiling proc-macro-hack v0.5.20+deprecated
[INFO] [stderr]    Compiling minimal-lexical v0.2.1
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling bindgen v0.60.1
[INFO] [stderr]    Compiling clap_lex v0.2.4
[INFO] [stderr]    Compiling textwrap v0.16.0
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling env_logger v0.9.3
[INFO] [stderr]    Compiling clang-sys v1.4.0
[INFO] [stderr]    Compiling which v4.4.0
[INFO] [stderr]    Compiling sqlite3-src v0.2.12
[INFO] [stderr]    Compiling indexmap v1.9.2
[INFO] [stderr]    Compiling memoffset v0.7.1
[INFO] [stderr]    Compiling shlex v1.1.0
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.13
[INFO] [stderr]    Compiling siphasher v0.3.10
[INFO] [stderr]    Compiling clap v3.2.23
[INFO] [stderr]    Compiling phf_shared v0.10.0
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]    Compiling crossbeam-queue v0.3.8
[INFO] [stderr]    Compiling sqlite3-sys v0.12.0
[INFO] [stderr]    Compiling cpp_core v0.6.0
[INFO] [stderr]    Compiling atomic v0.5.1
[INFO] [stderr]    Compiling priority-queue v1.3.0
[INFO] [stderr]    Compiling libc-stdhandle v0.1.0
[INFO] [stderr]    Compiling parking_lot_core v0.9.7
[INFO] [stderr]    Compiling phf_generator v0.10.0
[INFO] [stderr]    Compiling crossbeam-deque v0.8.2
[INFO] [stderr]    Compiling num-complex v0.4.3
[INFO] [stderr]    Compiling crossbeam-channel v0.5.6
[INFO] [stderr]    Compiling raw-cpuid v10.6.0
[INFO] [stderr]    Compiling poison v0.1.0
[INFO] [stderr]    Compiling parking_lot v0.12.1
[INFO] [stderr]    Compiling shared-mutex v0.3.1
[INFO] [stderr]    Compiling nix v0.24.3
[INFO] [stderr]    Compiling sqlite3 v0.24.0
[INFO] [stderr]    Compiling sqlite v0.25.3
[INFO] [stderr]    Compiling pnet_sys v0.31.0
[INFO] [stderr]    Compiling fs2 v0.4.3
[INFO] [stderr]    Compiling addr2line v0.19.0
[INFO] [stderr]    Compiling crossbeam v0.8.2
[INFO] [stderr]    Compiling errno v0.2.8
[INFO] [stderr]    Compiling socket2 v0.4.7
[INFO] [stderr]    Compiling multiset v0.0.5
[INFO] [stderr]    Compiling atomic_float v0.1.0
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling bitset v0.1.2
[INFO] [stderr]    Compiling integer-encoding v3.0.4
[INFO] [stderr]    Compiling atomic-take v1.1.0
[INFO] [stderr]    Compiling indoc v1.0.9
[INFO] [stderr]    Compiling float-ord v0.3.2
[INFO] [stderr]    Compiling const-default v1.0.0
[INFO] [stderr]    Compiling cexpr v0.6.0
[INFO] [stderr]    Compiling time-point v0.1.1
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]    Compiling winapi v0.2.8
[INFO] [stderr]    Compiling comparator v0.3.0
[INFO] [stderr]    Compiling quanta v0.9.3
[INFO] [stderr]    Compiling num v0.4.0
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling cpp_common v0.5.7
[INFO] [stderr]    Compiling cpp_build v0.5.7
[INFO] [stderr]    Compiling serde_derive v1.0.152
[INFO] [stderr]    Compiling qttypes v0.2.8
[INFO] [stderr]    Compiling cpp_macros v0.5.7
[INFO] [stderr]    Compiling qt_macros v0.1.1
[INFO] [stderr]    Compiling qmetaobject v0.2.7
[INFO] [stderr]    Compiling modular-bitfield-impl v0.11.2
[INFO] [stderr]    Compiling phf_macros v0.10.0
[INFO] [stderr]    Compiling qmetaobject_impl v0.2.7
[INFO] [stderr]    Compiling thiserror-impl v1.0.38
[INFO] [stderr]    Compiling try-catch v0.2.2
[INFO] [stderr]    Compiling delegate v0.7.0
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling phf v0.10.1
[INFO] [stderr]    Compiling modular-bitfield v0.11.2
[INFO] [stderr]    Compiling cpp v0.5.7
[INFO] [stderr]    Compiling thiserror v1.0.38
[INFO] [stderr]    Compiling libevent-sys v0.2.5
[INFO] [stderr]    Compiling serde_json v1.0.91
[INFO] [stderr]    Compiling toml v0.4.10
[INFO] [stderr]    Compiling bincode v1.3.3
[INFO] [stderr]    Compiling serde-big-array v0.4.1
[INFO] [stderr]    Compiling multimap v0.8.3
[INFO] [stderr]    Compiling time v0.3.17
[INFO] [stderr]    Compiling tinyvec v1.6.0
[INFO] [stderr]    Compiling ritual_common v0.4.0
[INFO] [stderr]    Compiling libevent v0.1.0
[INFO] [stderr]    Compiling ritual_build v0.4.0
[INFO] [stderr]    Compiling qt_ritual_common v0.4.0
[INFO] [stderr]    Compiling qt_ritual_build v0.5.0
[INFO] [stderr]    Compiling qt_core v0.5.0
[INFO] [stderr]    Compiling qt_gui v0.5.0
[INFO] [stderr]    Compiling bitcoin-imports v0.1.12-alpha.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> src/util.rs:68:1
[INFO] [stdout]    |
[INFO] [stdout] 68 | / /**
[INFO] [stdout] 69 | |   | Like assert(), but when VERIFY is defined,
[INFO] [stdout] 70 | |   | and side-effect safe.
[INFO] [stdout] 71 | |   |
[INFO] [stdout] 72 | |   */
[INFO] [stdout]    | |____^ rustdoc does not generate documentation for macro invocations
[INFO] [stdout]    |
[INFO] [stdout]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout]    = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> src/util.rs:88:1
[INFO] [stdout]    |
[INFO] [stdout] 88 | / /**
[INFO] [stdout] 89 | |   | Define `VG_UNDEF` and `VG_CHECK` when
[INFO] [stdout] 90 | |   | VALGRIND is defined
[INFO] [stdout] 91 | |   |
[INFO] [stdout] 92 | |   */
[INFO] [stdout]    | |____^ rustdoc does not generate documentation for macro invocations
[INFO] [stdout]    |
[INFO] [stdout]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/util.rs:222:1
[INFO] [stdout]     |
[INFO] [stdout] 222 | / /**
[INFO] [stdout] 223 | |   | Macro for restrict, when available
[INFO] [stdout] 224 | |   | and not in a VERIFY build.
[INFO] [stdout] 225 | |   |
[INFO] [stdout] 226 | |   */
[INFO] [stdout]     | |____^ rustdoc does not generate documentation for macro invocations
[INFO] [stdout]     |
[INFO] [stdout]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/util.rs:259:1
[INFO] [stdout]     |
[INFO] [stdout] 259 | / /**
[INFO] [stdout] 260 | |   | If {LITTLE,BIG}_ENDIAN is not explicitly
[INFO] [stdout] 261 | |   | provided, infer from various other
[INFO] [stdout] 262 | |   | system macros.
[INFO] [stdout] 263 | |   |
[INFO] [stdout] 264 | |   */
[INFO] [stdout]     | |____^ rustdoc does not generate documentation for macro invocations
[INFO] [stdout]     |
[INFO] [stdout]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/util.rs:374:1
[INFO] [stdout]     |
[INFO] [stdout] 374 | / /**
[INFO] [stdout] 375 | |   | If USE_FORCE_WIDEMUL_{INT128,INT64}
[INFO] [stdout] 376 | |   | is set, use that wide multiplication
[INFO] [stdout] 377 | |   | implementation.
[INFO] [stdout] ...   |
[INFO] [stdout] 381 | |   |
[INFO] [stdout] 382 | |   */
[INFO] [stdout]     | |____^ rustdoc does not generate documentation for macro invocations
[INFO] [stdout]     |
[INFO] [stdout]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `test_failure`
[INFO] [stdout]   --> src/util.rs:31:14
[INFO] [stdout]    |
[INFO] [stdout] 31 | macro_rules! test_failure {
[INFO] [stdout]    |              ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `check`
[INFO] [stdout]   --> src/util.rs:56:14
[INFO] [stdout]    |
[INFO] [stdout] 56 | macro_rules! check {
[INFO] [stdout]    |              ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `vg_check_verify`
[INFO] [stdout]    --> src/util.rs:121:14
[INFO] [stdout]     |
[INFO] [stdout] 121 | macro_rules! vg_check_verify { ($x:ident, $y:ident) => { } }
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]    --> src/lib.rs:252:1
[INFO] [stdout]     |
[INFO] [stdout] 252 | #[macro_use] extern crate derivative;
[INFO] [stdout]     | ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]    --> src/lib.rs:253:1
[INFO] [stdout]     |
[INFO] [stdout] 253 | #[macro_use] extern crate static_assertions;
[INFO] [stdout]     | ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]    --> src/lib.rs:254:1
[INFO] [stdout]     |
[INFO] [stdout] 254 | #[macro_use] extern crate bitflags;
[INFO] [stdout]     | ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]    --> src/lib.rs:255:1
[INFO] [stdout]     |
[INFO] [stdout] 255 | #[macro_use] extern crate phf;
[INFO] [stdout]     | ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]    --> src/lib.rs:256:1
[INFO] [stdout]     |
[INFO] [stdout] 256 | #[macro_use] extern crate maplit;
[INFO] [stdout]     | ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]    --> src/lib.rs:257:1
[INFO] [stdout]     |
[INFO] [stdout] 257 | #[macro_use] extern crate serde_big_array;
[INFO] [stdout]     | ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `generic_associated_types` has been stable since 1.65.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(generic_associated_types)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cb`
[INFO] [stdout]  --> src/util.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |         cb:   *const Callback,
[INFO] [stdout]   |         ^^ help: if this is intentional, prefix it with an underscore: `_cb`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `text`
[INFO] [stdout]   --> src/util.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |         text: *const u8)  {
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_text`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cb`
[INFO] [stdout]    --> src/util.rs:124:9
[INFO] [stdout]     |
[INFO] [stdout] 124 |         cb:   *const Callback,
[INFO] [stdout]     |         ^^ help: if this is intentional, prefix it with an underscore: `_cb`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `size`
[INFO] [stdout]    --> src/util.rs:125:9
[INFO] [stdout]     |
[INFO] [stdout] 125 |         size: usize)  {
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_size`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cb`
[INFO] [stdout]    --> src/util.rs:138:9
[INFO] [stdout]     |
[INFO] [stdout] 138 |         cb:   *const Callback,
[INFO] [stdout]     |         ^^ help: if this is intentional, prefix it with an underscore: `_cb`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ptr`
[INFO] [stdout]    --> src/util.rs:139:9
[INFO] [stdout]     |
[INFO] [stdout] 139 |         ptr:  *mut libc::c_void,
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_ptr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `size`
[INFO] [stdout]    --> src/util.rs:140:9
[INFO] [stdout]     |
[INFO] [stdout] 140 |         size: usize)  {
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_size`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `prealloc_ptr`
[INFO] [stdout]    --> src/util.rs:201:9
[INFO] [stdout]     |
[INFO] [stdout] 201 |         prealloc_ptr: *mut *mut libc::c_void,
[INFO] [stdout]     |         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_prealloc_ptr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `alloc_size`
[INFO] [stdout]    --> src/util.rs:202:9
[INFO] [stdout]     |
[INFO] [stdout] 202 |         alloc_size:   usize,
[INFO] [stdout]     |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_alloc_size`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `base`
[INFO] [stdout]    --> src/util.rs:203:9
[INFO] [stdout]     |
[INFO] [stdout] 203 |         base:         *mut libc::c_void,
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_base`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `max_size`
[INFO] [stdout]    --> src/util.rs:204:9
[INFO] [stdout]     |
[INFO] [stdout] 204 |         max_size:     usize)  {
[INFO] [stdout]     |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_max_size`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]    --> src/util.rs:296:9
[INFO] [stdout]     |
[INFO] [stdout] 296 |         s:    *mut libc::c_void,
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]    --> src/util.rs:297:9
[INFO] [stdout]     |
[INFO] [stdout] 297 |         len:  usize,
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `flag`
[INFO] [stdout]    --> src/util.rs:298:9
[INFO] [stdout]     |
[INFO] [stdout] 298 |         flag: i32)  {
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_flag`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s1`
[INFO] [stdout]    --> src/util.rs:324:9
[INFO] [stdout]     |
[INFO] [stdout] 324 |         s1: *const libc::c_void,
[INFO] [stdout]     |         ^^ help: if this is intentional, prefix it with an underscore: `_s1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s2`
[INFO] [stdout]    --> src/util.rs:325:9
[INFO] [stdout]     |
[INFO] [stdout] 325 |         s2: *const libc::c_void,
[INFO] [stdout]     |         ^^ help: if this is intentional, prefix it with an underscore: `_s2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]    --> src/util.rs:326:9
[INFO] [stdout]     |
[INFO] [stdout] 326 |         n:  usize) -> i32 {
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `r`
[INFO] [stdout]    --> src/util.rs:350:9
[INFO] [stdout]     |
[INFO] [stdout] 350 |         r:    *mut i32,
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_r`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]    --> src/util.rs:351:9
[INFO] [stdout]     |
[INFO] [stdout] 351 |         a:    *const i32,
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `flag`
[INFO] [stdout]    --> src/util.rs:352:9
[INFO] [stdout]     |
[INFO] [stdout] 352 |         flag: i32)  {
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_flag`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/util.rs:421:37
[INFO] [stdout]     |
[INFO] [stdout] 421 | #[inline] pub fn ctz32_var_debruijn(x: u32) -> i32 {
[INFO] [stdout]     |                                     ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/util.rs:443:37
[INFO] [stdout]     |
[INFO] [stdout] 443 | #[inline] pub fn ctz64_var_debruijn(x: u64) -> i32 {
[INFO] [stdout]     |                                     ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/util.rs:462:28
[INFO] [stdout]     |
[INFO] [stdout] 462 | #[inline] pub fn ctz32_var(x: u32) -> i32 {
[INFO] [stdout]     |                            ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/util.rs:488:28
[INFO] [stdout]     |
[INFO] [stdout] 488 | #[inline] pub fn ctz64_var(x: u64) -> i32 {
[INFO] [stdout]     |                            ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `deserializer`
[INFO] [stdout]    --> src/lib.rs:123:23
[INFO] [stdout]     |
[INFO] [stdout] 123 |     fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
[INFO] [stdout]     |                       ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_deserializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `inner`
[INFO] [stdout]    --> src/lib.rs:193:24
[INFO] [stdout]     |
[INFO] [stdout] 193 |     pub fn load(&self, inner: Option<T>) {
[INFO] [stdout]     |                        ^^^^^ help: if this is intentional, prefix it with an underscore: `_inner`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `inner`
[INFO] [stdout]    --> src/lib.rs:197:27
[INFO] [stdout]     |
[INFO] [stdout] 197 |     pub fn replace(&self, inner: &T) {
[INFO] [stdout]     |                           ^^^^^ help: if this is intentional, prefix it with an underscore: `_inner`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:206:13
[INFO] [stdout]     |
[INFO] [stdout] 206 |         let mut guard = self.0.read();
[INFO] [stdout]     |             ----^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:211:13
[INFO] [stdout]     |
[INFO] [stdout] 211 |         let mut guard = self.0.write();
[INFO] [stdout]     |             ----^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `what` is never read
[INFO] [stdout]   --> src/stdexcept.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct BadOptionalAccess {
[INFO] [stdout]    |            ----------------- field in this struct
[INFO] [stdout] 13 |     what: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `BadOptionalAccess` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `what` is never read
[INFO] [stdout]   --> src/stdexcept.rs:49:5
[INFO] [stdout]    |
[INFO] [stdout] 48 | pub struct BadTypeid {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] 49 |     what: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `BadTypeid` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `what` is never read
[INFO] [stdout]   --> src/stdexcept.rs:60:5
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub struct BadWeakPtr {
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] 60 |     what: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `BadWeakPtr` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `what` is never read
[INFO] [stdout]   --> src/stdexcept.rs:65:5
[INFO] [stdout]    |
[INFO] [stdout] 64 | pub struct BadFunctionCall {
[INFO] [stdout]    |            --------------- field in this struct
[INFO] [stdout] 65 |     what: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `BadFunctionCall` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `what` is never read
[INFO] [stdout]   --> src/stdexcept.rs:76:5
[INFO] [stdout]    |
[INFO] [stdout] 75 | pub struct BadException {
[INFO] [stdout]    |            ------------ field in this struct
[INFO] [stdout] 76 |     what: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `BadException` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `what` is never read
[INFO] [stdout]   --> src/stdexcept.rs:81:5
[INFO] [stdout]    |
[INFO] [stdout] 80 | pub struct BadVariantAccess {
[INFO] [stdout]    |            ---------------- field in this struct
[INFO] [stdout] 81 |     what: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `BadVariantAccess` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 50 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 16s
[INFO] running `Command { std: "docker" "inspect" "40f43b325d18dc3960b97560608b93cc1b6cac3b2cd952aa544cbfae0ebb0d65", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "40f43b325d18dc3960b97560608b93cc1b6cac3b2cd952aa544cbfae0ebb0d65", kill_on_drop: false }`
[INFO] [stdout] 40f43b325d18dc3960b97560608b93cc1b6cac3b2cd952aa544cbfae0ebb0d65
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:3d532c2baa59a8a48e45c3be7eb049f77ac5a58a7a6514a58a8e878df1c3d03d" "/opt/rustwide/cargo-home/bin/cargo" "+0179c3cb935eb588d407cb784f436ae84d99db5c" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1a4ff854c492a1d5ee47bbfff406c1e4eca714b06cb6ff1fdad925b16fcce295
[INFO] running `Command { std: "docker" "start" "-a" "1a4ff854c492a1d5ee47bbfff406c1e4eca714b06cb6ff1fdad925b16fcce295", kill_on_drop: false }`
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> src/util.rs:68:1
[INFO] [stdout]    |
[INFO] [stdout] 68 | / /**
[INFO] [stdout] 69 | |   | Like assert(), but when VERIFY is defined,
[INFO] [stdout] 70 | |   | and side-effect safe.
[INFO] [stdout] 71 | |   |
[INFO] [stdout] 72 | |   */
[INFO] [stdout]    | |____^ rustdoc does not generate documentation for macro invocations
[INFO] [stdout]    |
[INFO] [stdout]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout]    = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> src/util.rs:88:1
[INFO] [stdout]    |
[INFO] [stdout] 88 | / /**
[INFO] [stdout] 89 | |   | Define `VG_UNDEF` and `VG_CHECK` when
[INFO] [stdout] 90 | |   | VALGRIND is defined
[INFO] [stdout] 91 | |   |
[INFO] [stdout] 92 | |   */
[INFO] [stdout]    | |____^ rustdoc does not generate documentation for macro invocations
[INFO] [stdout]    |
[INFO] [stdout]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/util.rs:222:1
[INFO] [stdout]     |
[INFO] [stdout] 222 | / /**
[INFO] [stdout] 223 | |   | Macro for restrict, when available
[INFO] [stdout] 224 | |   | and not in a VERIFY build.
[INFO] [stdout] 225 | |   |
[INFO] [stdout] 226 | |   */
[INFO] [stdout]     | |____^ rustdoc does not generate documentation for macro invocations
[INFO] [stdout]     |
[INFO] [stdout]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/util.rs:259:1
[INFO] [stdout]     |
[INFO] [stdout] 259 | / /**
[INFO] [stdout] 260 | |   | If {LITTLE,BIG}_ENDIAN is not explicitly
[INFO] [stdout] 261 | |   | provided, infer from various other
[INFO] [stdout] 262 | |   | system macros.
[INFO] [stdout] 263 | |   |
[INFO] [stdout] 264 | |   */
[INFO] [stdout]     | |____^ rustdoc does not generate documentation for macro invocations
[INFO] [stdout]     |
[INFO] [stdout]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/util.rs:374:1
[INFO] [stdout]     |
[INFO] [stdout] 374 | / /**
[INFO] [stdout] 375 | |   | If USE_FORCE_WIDEMUL_{INT128,INT64}
[INFO] [stdout] 376 | |   | is set, use that wide multiplication
[INFO] [stdout] 377 | |   | implementation.
[INFO] [stdout] ...   |
[INFO] [stdout] 381 | |   |
[INFO] [stdout] 382 | |   */
[INFO] [stdout]     | |____^ rustdoc does not generate documentation for macro invocations
[INFO] [stdout]     |
[INFO] [stdout]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `test_failure`
[INFO] [stdout]   --> src/util.rs:31:14
[INFO] [stdout]    |
[INFO] [stdout] 31 | macro_rules! test_failure {
[INFO] [stdout]    |              ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `check`
[INFO] [stdout]   --> src/util.rs:56:14
[INFO] [stdout]    |
[INFO] [stdout] 56 | macro_rules! check {
[INFO] [stdout]    |              ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `vg_check_verify`
[INFO] [stdout]    --> src/util.rs:121:14
[INFO] [stdout]     |
[INFO] [stdout] 121 | macro_rules! vg_check_verify { ($x:ident, $y:ident) => { } }
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]    --> src/lib.rs:252:1
[INFO] [stdout]     |
[INFO] [stdout] 252 | #[macro_use] extern crate derivative;
[INFO] [stdout]     | ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]    --> src/lib.rs:253:1
[INFO] [stdout]     |
[INFO] [stdout] 253 | #[macro_use] extern crate static_assertions;
[INFO] [stdout]     | ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]    --> src/lib.rs:254:1
[INFO] [stdout]     |
[INFO] [stdout] 254 | #[macro_use] extern crate bitflags;
[INFO] [stdout]     | ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]    --> src/lib.rs:255:1
[INFO] [stdout]     |
[INFO] [stdout] 255 | #[macro_use] extern crate phf;
[INFO] [stdout]     | ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]    --> src/lib.rs:256:1
[INFO] [stdout]     |
[INFO] [stdout] 256 | #[macro_use] extern crate maplit;
[INFO] [stdout]     | ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]    --> src/lib.rs:257:1
[INFO] [stdout]     |
[INFO] [stdout] 257 | #[macro_use] extern crate serde_big_array;
[INFO] [stdout]     | ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `generic_associated_types` has been stable since 1.65.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(generic_associated_types)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cb`
[INFO] [stdout]  --> src/util.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |         cb:   *const Callback,
[INFO] [stdout]   |         ^^ help: if this is intentional, prefix it with an underscore: `_cb`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `text`
[INFO] [stdout]   --> src/util.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |         text: *const u8)  {
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_text`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cb`
[INFO] [stdout]    --> src/util.rs:124:9
[INFO] [stdout]     |
[INFO] [stdout] 124 |         cb:   *const Callback,
[INFO] [stdout]     |         ^^ help: if this is intentional, prefix it with an underscore: `_cb`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `size`
[INFO] [stdout]    --> src/util.rs:125:9
[INFO] [stdout]     |
[INFO] [stdout] 125 |         size: usize)  {
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_size`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cb`
[INFO] [stdout]    --> src/util.rs:138:9
[INFO] [stdout]     |
[INFO] [stdout] 138 |         cb:   *const Callback,
[INFO] [stdout]     |         ^^ help: if this is intentional, prefix it with an underscore: `_cb`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ptr`
[INFO] [stdout]    --> src/util.rs:139:9
[INFO] [stdout]     |
[INFO] [stdout] 139 |         ptr:  *mut libc::c_void,
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_ptr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `size`
[INFO] [stdout]    --> src/util.rs:140:9
[INFO] [stdout]     |
[INFO] [stdout] 140 |         size: usize)  {
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_size`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `prealloc_ptr`
[INFO] [stdout]    --> src/util.rs:201:9
[INFO] [stdout]     |
[INFO] [stdout] 201 |         prealloc_ptr: *mut *mut libc::c_void,
[INFO] [stdout]     |         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_prealloc_ptr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `alloc_size`
[INFO] [stdout]    --> src/util.rs:202:9
[INFO] [stdout]     |
[INFO] [stdout] 202 |         alloc_size:   usize,
[INFO] [stdout]     |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_alloc_size`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `base`
[INFO] [stdout]    --> src/util.rs:203:9
[INFO] [stdout]     |
[INFO] [stdout] 203 |         base:         *mut libc::c_void,
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_base`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `max_size`
[INFO] [stdout]    --> src/util.rs:204:9
[INFO] [stdout]     |
[INFO] [stdout] 204 |         max_size:     usize)  {
[INFO] [stdout]     |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_max_size`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling bitcoin-imports v0.1.12-alpha.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]    --> src/util.rs:296:9
[INFO] [stdout]     |
[INFO] [stdout] 296 |         s:    *mut libc::c_void,
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]    --> src/util.rs:297:9
[INFO] [stdout]     |
[INFO] [stdout] 297 |         len:  usize,
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `flag`
[INFO] [stdout]    --> src/util.rs:298:9
[INFO] [stdout]     |
[INFO] [stdout] 298 |         flag: i32)  {
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_flag`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s1`
[INFO] [stdout]    --> src/util.rs:324:9
[INFO] [stdout]     |
[INFO] [stdout] 324 |         s1: *const libc::c_void,
[INFO] [stdout]     |         ^^ help: if this is intentional, prefix it with an underscore: `_s1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s2`
[INFO] [stdout]    --> src/util.rs:325:9
[INFO] [stdout]     |
[INFO] [stdout] 325 |         s2: *const libc::c_void,
[INFO] [stdout]     |         ^^ help: if this is intentional, prefix it with an underscore: `_s2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]    --> src/util.rs:326:9
[INFO] [stdout]     |
[INFO] [stdout] 326 |         n:  usize) -> i32 {
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `r`
[INFO] [stdout]    --> src/util.rs:350:9
[INFO] [stdout]     |
[INFO] [stdout] 350 |         r:    *mut i32,
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_r`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]    --> src/util.rs:351:9
[INFO] [stdout]     |
[INFO] [stdout] 351 |         a:    *const i32,
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `flag`
[INFO] [stdout]    --> src/util.rs:352:9
[INFO] [stdout]     |
[INFO] [stdout] 352 |         flag: i32)  {
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_flag`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/util.rs:421:37
[INFO] [stdout]     |
[INFO] [stdout] 421 | #[inline] pub fn ctz32_var_debruijn(x: u32) -> i32 {
[INFO] [stdout]     |                                     ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/util.rs:443:37
[INFO] [stdout]     |
[INFO] [stdout] 443 | #[inline] pub fn ctz64_var_debruijn(x: u64) -> i32 {
[INFO] [stdout]     |                                     ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/util.rs:462:28
[INFO] [stdout]     |
[INFO] [stdout] 462 | #[inline] pub fn ctz32_var(x: u32) -> i32 {
[INFO] [stdout]     |                            ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/util.rs:488:28
[INFO] [stdout]     |
[INFO] [stdout] 488 | #[inline] pub fn ctz64_var(x: u64) -> i32 {
[INFO] [stdout]     |                            ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `deserializer`
[INFO] [stdout]    --> src/lib.rs:123:23
[INFO] [stdout]     |
[INFO] [stdout] 123 |     fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
[INFO] [stdout]     |                       ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_deserializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `inner`
[INFO] [stdout]    --> src/lib.rs:193:24
[INFO] [stdout]     |
[INFO] [stdout] 193 |     pub fn load(&self, inner: Option<T>) {
[INFO] [stdout]     |                        ^^^^^ help: if this is intentional, prefix it with an underscore: `_inner`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `inner`
[INFO] [stdout]    --> src/lib.rs:197:27
[INFO] [stdout]     |
[INFO] [stdout] 197 |     pub fn replace(&self, inner: &T) {
[INFO] [stdout]     |                           ^^^^^ help: if this is intentional, prefix it with an underscore: `_inner`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:206:13
[INFO] [stdout]     |
[INFO] [stdout] 206 |         let mut guard = self.0.read();
[INFO] [stdout]     |             ----^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:211:13
[INFO] [stdout]     |
[INFO] [stdout] 211 |         let mut guard = self.0.write();
[INFO] [stdout]     |             ----^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `what` is never read
[INFO] [stdout]   --> src/stdexcept.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct BadOptionalAccess {
[INFO] [stdout]    |            ----------------- field in this struct
[INFO] [stdout] 13 |     what: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `BadOptionalAccess` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `what` is never read
[INFO] [stdout]   --> src/stdexcept.rs:49:5
[INFO] [stdout]    |
[INFO] [stdout] 48 | pub struct BadTypeid {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] 49 |     what: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `BadTypeid` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `what` is never read
[INFO] [stdout]   --> src/stdexcept.rs:60:5
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub struct BadWeakPtr {
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] 60 |     what: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `BadWeakPtr` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `what` is never read
[INFO] [stdout]   --> src/stdexcept.rs:65:5
[INFO] [stdout]    |
[INFO] [stdout] 64 | pub struct BadFunctionCall {
[INFO] [stdout]    |            --------------- field in this struct
[INFO] [stdout] 65 |     what: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `BadFunctionCall` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `what` is never read
[INFO] [stdout]   --> src/stdexcept.rs:76:5
[INFO] [stdout]    |
[INFO] [stdout] 75 | pub struct BadException {
[INFO] [stdout]    |            ------------ field in this struct
[INFO] [stdout] 76 |     what: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `BadException` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `what` is never read
[INFO] [stdout]   --> src/stdexcept.rs:81:5
[INFO] [stdout]    |
[INFO] [stdout] 80 | pub struct BadVariantAccess {
[INFO] [stdout]    |            ---------------- field in this struct
[INFO] [stdout] 81 |     what: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `BadVariantAccess` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 50 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> src/util.rs:68:1
[INFO] [stdout]    |
[INFO] [stdout] 68 | / /**
[INFO] [stdout] 69 | |   | Like assert(), but when VERIFY is defined,
[INFO] [stdout] 70 | |   | and side-effect safe.
[INFO] [stdout] 71 | |   |
[INFO] [stdout] 72 | |   */
[INFO] [stdout]    | |____^ rustdoc does not generate documentation for macro invocations
[INFO] [stdout]    |
[INFO] [stdout]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout]    = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> src/util.rs:88:1
[INFO] [stdout]    |
[INFO] [stdout] 88 | / /**
[INFO] [stdout] 89 | |   | Define `VG_UNDEF` and `VG_CHECK` when
[INFO] [stdout] 90 | |   | VALGRIND is defined
[INFO] [stdout] 91 | |   |
[INFO] [stdout] 92 | |   */
[INFO] [stdout]    | |____^ rustdoc does not generate documentation for macro invocations
[INFO] [stdout]    |
[INFO] [stdout]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/util.rs:222:1
[INFO] [stdout]     |
[INFO] [stdout] 222 | / /**
[INFO] [stdout] 223 | |   | Macro for restrict, when available
[INFO] [stdout] 224 | |   | and not in a VERIFY build.
[INFO] [stdout] 225 | |   |
[INFO] [stdout] 226 | |   */
[INFO] [stdout]     | |____^ rustdoc does not generate documentation for macro invocations
[INFO] [stdout]     |
[INFO] [stdout]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/util.rs:259:1
[INFO] [stdout]     |
[INFO] [stdout] 259 | / /**
[INFO] [stdout] 260 | |   | If {LITTLE,BIG}_ENDIAN is not explicitly
[INFO] [stdout] 261 | |   | provided, infer from various other
[INFO] [stdout] 262 | |   | system macros.
[INFO] [stdout] 263 | |   |
[INFO] [stdout] 264 | |   */
[INFO] [stdout]     | |____^ rustdoc does not generate documentation for macro invocations
[INFO] [stdout]     |
[INFO] [stdout]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/util.rs:374:1
[INFO] [stdout]     |
[INFO] [stdout] 374 | / /**
[INFO] [stdout] 375 | |   | If USE_FORCE_WIDEMUL_{INT128,INT64}
[INFO] [stdout] 376 | |   | is set, use that wide multiplication
[INFO] [stdout] 377 | |   | implementation.
[INFO] [stdout] ...   |
[INFO] [stdout] 381 | |   |
[INFO] [stdout] 382 | |   */
[INFO] [stdout]     | |____^ rustdoc does not generate documentation for macro invocations
[INFO] [stdout]     |
[INFO] [stdout]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `test_failure`
[INFO] [stdout]   --> src/util.rs:31:14
[INFO] [stdout]    |
[INFO] [stdout] 31 | macro_rules! test_failure {
[INFO] [stdout]    |              ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `check`
[INFO] [stdout]   --> src/util.rs:56:14
[INFO] [stdout]    |
[INFO] [stdout] 56 | macro_rules! check {
[INFO] [stdout]    |              ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `vg_check_verify`
[INFO] [stdout]    --> src/util.rs:121:14
[INFO] [stdout]     |
[INFO] [stdout] 121 | macro_rules! vg_check_verify { ($x:ident, $y:ident) => { } }
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]    --> src/lib.rs:252:1
[INFO] [stdout]     |
[INFO] [stdout] 252 | #[macro_use] extern crate derivative;
[INFO] [stdout]     | ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]    --> src/lib.rs:253:1
[INFO] [stdout]     |
[INFO] [stdout] 253 | #[macro_use] extern crate static_assertions;
[INFO] [stdout]     | ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]    --> src/lib.rs:254:1
[INFO] [stdout]     |
[INFO] [stdout] 254 | #[macro_use] extern crate bitflags;
[INFO] [stdout]     | ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]    --> src/lib.rs:255:1
[INFO] [stdout]     |
[INFO] [stdout] 255 | #[macro_use] extern crate phf;
[INFO] [stdout]     | ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]    --> src/lib.rs:256:1
[INFO] [stdout]     |
[INFO] [stdout] 256 | #[macro_use] extern crate maplit;
[INFO] [stdout]     | ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]    --> src/lib.rs:257:1
[INFO] [stdout]     |
[INFO] [stdout] 257 | #[macro_use] extern crate serde_big_array;
[INFO] [stdout]     | ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `generic_associated_types` has been stable since 1.65.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(generic_associated_types)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cb`
[INFO] [stdout]  --> src/util.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |         cb:   *const Callback,
[INFO] [stdout]   |         ^^ help: if this is intentional, prefix it with an underscore: `_cb`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `text`
[INFO] [stdout]   --> src/util.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |         text: *const u8)  {
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_text`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cb`
[INFO] [stdout]    --> src/util.rs:124:9
[INFO] [stdout]     |
[INFO] [stdout] 124 |         cb:   *const Callback,
[INFO] [stdout]     |         ^^ help: if this is intentional, prefix it with an underscore: `_cb`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `size`
[INFO] [stdout]    --> src/util.rs:125:9
[INFO] [stdout]     |
[INFO] [stdout] 125 |         size: usize)  {
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_size`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cb`
[INFO] [stdout]    --> src/util.rs:138:9
[INFO] [stdout]     |
[INFO] [stdout] 138 |         cb:   *const Callback,
[INFO] [stdout]     |         ^^ help: if this is intentional, prefix it with an underscore: `_cb`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ptr`
[INFO] [stdout]    --> src/util.rs:139:9
[INFO] [stdout]     |
[INFO] [stdout] 139 |         ptr:  *mut libc::c_void,
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_ptr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `size`
[INFO] [stdout]    --> src/util.rs:140:9
[INFO] [stdout]     |
[INFO] [stdout] 140 |         size: usize)  {
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_size`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `prealloc_ptr`
[INFO] [stdout]    --> src/util.rs:201:9
[INFO] [stdout]     |
[INFO] [stdout] 201 |         prealloc_ptr: *mut *mut libc::c_void,
[INFO] [stdout]     |         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_prealloc_ptr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `alloc_size`
[INFO] [stdout]    --> src/util.rs:202:9
[INFO] [stdout]     |
[INFO] [stdout] 202 |         alloc_size:   usize,
[INFO] [stdout]     |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_alloc_size`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `base`
[INFO] [stdout]    --> src/util.rs:203:9
[INFO] [stdout]     |
[INFO] [stdout] 203 |         base:         *mut libc::c_void,
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_base`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `max_size`
[INFO] [stdout]    --> src/util.rs:204:9
[INFO] [stdout]     |
[INFO] [stdout] 204 |         max_size:     usize)  {
[INFO] [stdout]     |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_max_size`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]    --> src/util.rs:296:9
[INFO] [stdout]     |
[INFO] [stdout] 296 |         s:    *mut libc::c_void,
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]    --> src/util.rs:297:9
[INFO] [stdout]     |
[INFO] [stdout] 297 |         len:  usize,
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `flag`
[INFO] [stdout]    --> src/util.rs:298:9
[INFO] [stdout]     |
[INFO] [stdout] 298 |         flag: i32)  {
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_flag`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s1`
[INFO] [stdout]    --> src/util.rs:324:9
[INFO] [stdout]     |
[INFO] [stdout] 324 |         s1: *const libc::c_void,
[INFO] [stdout]     |         ^^ help: if this is intentional, prefix it with an underscore: `_s1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s2`
[INFO] [stdout]    --> src/util.rs:325:9
[INFO] [stdout]     |
[INFO] [stdout] 325 |         s2: *const libc::c_void,
[INFO] [stdout]     |         ^^ help: if this is intentional, prefix it with an underscore: `_s2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]    --> src/util.rs:326:9
[INFO] [stdout]     |
[INFO] [stdout] 326 |         n:  usize) -> i32 {
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `r`
[INFO] [stdout]    --> src/util.rs:350:9
[INFO] [stdout]     |
[INFO] [stdout] 350 |         r:    *mut i32,
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_r`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]    --> src/util.rs:351:9
[INFO] [stdout]     |
[INFO] [stdout] 351 |         a:    *const i32,
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `flag`
[INFO] [stdout]    --> src/util.rs:352:9
[INFO] [stdout]     |
[INFO] [stdout] 352 |         flag: i32)  {
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_flag`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/util.rs:421:37
[INFO] [stdout]     |
[INFO] [stdout] 421 | #[inline] pub fn ctz32_var_debruijn(x: u32) -> i32 {
[INFO] [stdout]     |                                     ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/util.rs:443:37
[INFO] [stdout]     |
[INFO] [stdout] 443 | #[inline] pub fn ctz64_var_debruijn(x: u64) -> i32 {
[INFO] [stdout]     |                                     ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/util.rs:462:28
[INFO] [stdout]     |
[INFO] [stdout] 462 | #[inline] pub fn ctz32_var(x: u32) -> i32 {
[INFO] [stdout]     |                            ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/util.rs:488:28
[INFO] [stdout]     |
[INFO] [stdout] 488 | #[inline] pub fn ctz64_var(x: u64) -> i32 {
[INFO] [stdout]     |                            ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `deserializer`
[INFO] [stdout]    --> src/lib.rs:123:23
[INFO] [stdout]     |
[INFO] [stdout] 123 |     fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
[INFO] [stdout]     |                       ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_deserializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `inner`
[INFO] [stdout]    --> src/lib.rs:193:24
[INFO] [stdout]     |
[INFO] [stdout] 193 |     pub fn load(&self, inner: Option<T>) {
[INFO] [stdout]     |                        ^^^^^ help: if this is intentional, prefix it with an underscore: `_inner`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `inner`
[INFO] [stdout]    --> src/lib.rs:197:27
[INFO] [stdout]     |
[INFO] [stdout] 197 |     pub fn replace(&self, inner: &T) {
[INFO] [stdout]     |                           ^^^^^ help: if this is intentional, prefix it with an underscore: `_inner`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:206:13
[INFO] [stdout]     |
[INFO] [stdout] 206 |         let mut guard = self.0.read();
[INFO] [stdout]     |             ----^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:211:13
[INFO] [stdout]     |
[INFO] [stdout] 211 |         let mut guard = self.0.write();
[INFO] [stdout]     |             ----^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `what` is never read
[INFO] [stdout]   --> src/stdexcept.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct BadOptionalAccess {
[INFO] [stdout]    |            ----------------- field in this struct
[INFO] [stdout] 13 |     what: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `BadOptionalAccess` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `what` is never read
[INFO] [stdout]   --> src/stdexcept.rs:49:5
[INFO] [stdout]    |
[INFO] [stdout] 48 | pub struct BadTypeid {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] 49 |     what: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `BadTypeid` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `what` is never read
[INFO] [stdout]   --> src/stdexcept.rs:60:5
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub struct BadWeakPtr {
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] 60 |     what: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `BadWeakPtr` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `what` is never read
[INFO] [stdout]   --> src/stdexcept.rs:65:5
[INFO] [stdout]    |
[INFO] [stdout] 64 | pub struct BadFunctionCall {
[INFO] [stdout]    |            --------------- field in this struct
[INFO] [stdout] 65 |     what: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `BadFunctionCall` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `what` is never read
[INFO] [stdout]   --> src/stdexcept.rs:76:5
[INFO] [stdout]    |
[INFO] [stdout] 75 | pub struct BadException {
[INFO] [stdout]    |            ------------ field in this struct
[INFO] [stdout] 76 |     what: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `BadException` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `what` is never read
[INFO] [stdout]   --> src/stdexcept.rs:81:5
[INFO] [stdout]    |
[INFO] [stdout] 80 | pub struct BadVariantAccess {
[INFO] [stdout]    |            ---------------- field in this struct
[INFO] [stdout] 81 |     what: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `BadVariantAccess` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 50 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.01s
[INFO] running `Command { std: "docker" "inspect" "1a4ff854c492a1d5ee47bbfff406c1e4eca714b06cb6ff1fdad925b16fcce295", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a4ff854c492a1d5ee47bbfff406c1e4eca714b06cb6ff1fdad925b16fcce295", kill_on_drop: false }`
[INFO] [stdout] 1a4ff854c492a1d5ee47bbfff406c1e4eca714b06cb6ff1fdad925b16fcce295