[INFO] fetching crate fastbit 0.11.1...
[INFO] testing fastbit-0.11.1 against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-7
[INFO] extracting crate fastbit 0.11.1 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate fastbit 0.11.1
[INFO] finished tweaking crates.io crate fastbit 0.11.1
[INFO] tweaked toml for crates.io crate fastbit 0.11.1 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate fastbit 0.11.1 on toolchain c2e32f1c9652b13ed99608599c1e855462f421f3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate fastbit 0.11.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5a307f25ccbc7112281f20f92fc86ddccaa0bc3d24538c7aa17b53224d9951ef
[INFO] running `Command { std: "docker" "start" "-a" "5a307f25ccbc7112281f20f92fc86ddccaa0bc3d24538c7aa17b53224d9951ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5a307f25ccbc7112281f20f92fc86ddccaa0bc3d24538c7aa17b53224d9951ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a307f25ccbc7112281f20f92fc86ddccaa0bc3d24538c7aa17b53224d9951ef", kill_on_drop: false }`
[INFO] [stdout] 5a307f25ccbc7112281f20f92fc86ddccaa0bc3d24538c7aa17b53224d9951ef
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] eb4fc5f8a4bf5707b906b972a16ec150037114334010fcd934e858d619126537
[INFO] running `Command { std: "docker" "start" "-a" "eb4fc5f8a4bf5707b906b972a16ec150037114334010fcd934e858d619126537", kill_on_drop: false }`
[INFO] [stderr]    Compiling fastbit v0.11.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `BitSetIter` is never constructed
[INFO] [stdout]    --> src/traits.rs:120:12
[INFO] [stdout]     |
[INFO] [stdout] 120 | pub struct BitSetIter<'a, T: BitRead + ?Sized> {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `bitset_test_and_reset` is never used
[INFO] [stdout]    --> src/util.rs:210:15
[INFO] [stdout]     |
[INFO] [stdout] 210 | pub unsafe fn bitset_test_and_reset<T: BitWord>(ptr: NonNull<T>, len: usize, idx: usize) -> bool {
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `bitset_take` is never used
[INFO] [stdout]    --> src/util.rs:221:15
[INFO] [stdout]     |
[INFO] [stdout] 221 | pub unsafe fn bitset_take<T: BitWord>(ptr: NonNull<T>, len: usize, idx: usize) -> bool {
[INFO] [stdout]     |               ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `bitset_replace` is never used
[INFO] [stdout]    --> src/util.rs:231:15
[INFO] [stdout]     |
[INFO] [stdout] 231 | pub unsafe fn bitset_replace<T: BitWord>(
[INFO] [stdout]     |               ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `bitset_none` is never used
[INFO] [stdout]    --> src/util.rs:355:15
[INFO] [stdout]     |
[INFO] [stdout] 355 | pub unsafe fn bitset_none<T: BitWord>(ptr: NonNull<T>, len: usize) -> bool {
[INFO] [stdout]     |               ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/bitfixed.rs:133:17
[INFO] [stdout]     |
[INFO] [stdout] 133 |     pub fn iter(&self) -> Iter<W> {
[INFO] [stdout]     |                 ^^^^^     ^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 133 |     pub fn iter(&self) -> Iter<'_, W> {
[INFO] [stdout]     |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/bitvec.rs:87:17
[INFO] [stdout]    |
[INFO] [stdout] 87 |     pub fn iter(&self) -> Iter<W> {
[INFO] [stdout]    |                 ^^^^^     ^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 87 |     pub fn iter(&self) -> Iter<'_, W> {
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/bitvec.rs:110:18
[INFO] [stdout]     |
[INFO] [stdout] 110 |     pub fn slice(&self, offset: usize, len: usize) -> BitSpan<W> {
[INFO] [stdout]     |                  ^^^^^ the lifetime is elided here    ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 110 |     pub fn slice(&self, offset: usize, len: usize) -> BitSpan<'_, W> {
[INFO] [stdout]     |                                                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/bitvec.rs:115:22
[INFO] [stdout]     |
[INFO] [stdout] 115 |     pub fn slice_mut(&self, offset: usize, len: usize) -> BitSpanMut<W> {
[INFO] [stdout]     |                      ^^^^^ the lifetime is elided here    ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 115 |     pub fn slice_mut(&self, offset: usize, len: usize) -> BitSpanMut<'_, W> {
[INFO] [stdout]     |                                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.46s
[INFO] running `Command { std: "docker" "inspect" "eb4fc5f8a4bf5707b906b972a16ec150037114334010fcd934e858d619126537", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb4fc5f8a4bf5707b906b972a16ec150037114334010fcd934e858d619126537", kill_on_drop: false }`
[INFO] [stdout] eb4fc5f8a4bf5707b906b972a16ec150037114334010fcd934e858d619126537
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 47cdd8179e55a2bce4dac21ece5485288bd56d6878f608617d1ca6e53d06de3c
[INFO] running `Command { std: "docker" "start" "-a" "47cdd8179e55a2bce4dac21ece5485288bd56d6878f608617d1ca6e53d06de3c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling serde_json v1.0.140
[INFO] [stderr]    Compiling anstyle v1.0.10
[INFO] [stderr]    Compiling ciborium-io v0.2.2
[INFO] [stderr]    Compiling clap_lex v0.7.4
[INFO] [stderr]    Compiling half v2.6.0
[INFO] [stderr]    Compiling plotters-backend v0.3.7
[INFO] [stderr]    Compiling regex-automata v0.4.9
[INFO] [stderr]    Compiling cast v0.3.0
[INFO] [stderr]    Compiling itertools v0.13.0
[INFO] [stderr]    Compiling anes v0.1.6
[INFO] [stderr]    Compiling oorandom v11.1.5
[INFO] [stdout] warning: struct `BitSetIter` is never constructed
[INFO] [stdout]    --> src/traits.rs:120:12
[INFO] [stdout]     |
[INFO] [stdout] 120 | pub struct BitSetIter<'a, T: BitRead + ?Sized> {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `bitset_test_and_reset` is never used
[INFO] [stdout]    --> src/util.rs:210:15
[INFO] [stdout]     |
[INFO] [stdout] 210 | pub unsafe fn bitset_test_and_reset<T: BitWord>(ptr: NonNull<T>, len: usize, idx: usize) -> bool {
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `bitset_take` is never used
[INFO] [stdout]    --> src/util.rs:221:15
[INFO] [stdout]     |
[INFO] [stdout] 221 | pub unsafe fn bitset_take<T: BitWord>(ptr: NonNull<T>, len: usize, idx: usize) -> bool {
[INFO] [stdout]     |               ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `bitset_replace` is never used
[INFO] [stdout]    --> src/util.rs:231:15
[INFO] [stdout]     |
[INFO] [stdout] 231 | pub unsafe fn bitset_replace<T: BitWord>(
[INFO] [stdout]     |               ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `bitset_none` is never used
[INFO] [stdout]    --> src/util.rs:355:15
[INFO] [stdout]     |
[INFO] [stdout] 355 | pub unsafe fn bitset_none<T: BitWord>(ptr: NonNull<T>, len: usize) -> bool {
[INFO] [stdout]     |               ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/bitfixed.rs:133:17
[INFO] [stdout]     |
[INFO] [stdout] 133 |     pub fn iter(&self) -> Iter<W> {
[INFO] [stdout]     |                 ^^^^^     ^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 133 |     pub fn iter(&self) -> Iter<'_, W> {
[INFO] [stdout]     |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/bitvec.rs:87:17
[INFO] [stdout]    |
[INFO] [stdout] 87 |     pub fn iter(&self) -> Iter<W> {
[INFO] [stdout]    |                 ^^^^^     ^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 87 |     pub fn iter(&self) -> Iter<'_, W> {
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/bitvec.rs:110:18
[INFO] [stdout]     |
[INFO] [stdout] 110 |     pub fn slice(&self, offset: usize, len: usize) -> BitSpan<W> {
[INFO] [stdout]     |                  ^^^^^ the lifetime is elided here    ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 110 |     pub fn slice(&self, offset: usize, len: usize) -> BitSpan<'_, W> {
[INFO] [stdout]     |                                                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/bitvec.rs:115:22
[INFO] [stdout]     |
[INFO] [stdout] 115 |     pub fn slice_mut(&self, offset: usize, len: usize) -> BitSpanMut<W> {
[INFO] [stdout]     |                      ^^^^^ the lifetime is elided here    ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 115 |     pub fn slice_mut(&self, offset: usize, len: usize) -> BitSpanMut<'_, W> {
[INFO] [stdout]     |                                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rayon v1.10.0
[INFO] [stderr]    Compiling clap_builder v4.5.39
[INFO] [stderr]    Compiling criterion-plot v0.5.0
[INFO] [stderr]    Compiling ciborium-ll v0.2.2
[INFO] [stderr]    Compiling plotters-svg v0.3.7
[INFO] [stderr]    Compiling plotters v0.3.7
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.101
[INFO] [stderr]    Compiling regex v1.11.1
[INFO] [stderr]    Compiling clap v4.5.39
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling ciborium v0.2.2
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling criterion v0.6.0
[INFO] [stderr]    Compiling fastbit v0.11.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `BitSetIter` is never constructed
[INFO] [stdout]    --> src/traits.rs:120:12
[INFO] [stdout]     |
[INFO] [stdout] 120 | pub struct BitSetIter<'a, T: BitRead + ?Sized> {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/bitfixed.rs:133:17
[INFO] [stdout]     |
[INFO] [stdout] 133 |     pub fn iter(&self) -> Iter<W> {
[INFO] [stdout]     |                 ^^^^^     ^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 133 |     pub fn iter(&self) -> Iter<'_, W> {
[INFO] [stdout]     |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/bitvec.rs:87:17
[INFO] [stdout]    |
[INFO] [stdout] 87 |     pub fn iter(&self) -> Iter<W> {
[INFO] [stdout]    |                 ^^^^^     ^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 87 |     pub fn iter(&self) -> Iter<'_, W> {
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/bitvec.rs:110:18
[INFO] [stdout]     |
[INFO] [stdout] 110 |     pub fn slice(&self, offset: usize, len: usize) -> BitSpan<W> {
[INFO] [stdout]     |                  ^^^^^ the lifetime is elided here    ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 110 |     pub fn slice(&self, offset: usize, len: usize) -> BitSpan<'_, W> {
[INFO] [stdout]     |                                                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/bitvec.rs:115:22
[INFO] [stdout]     |
[INFO] [stdout] 115 |     pub fn slice_mut(&self, offset: usize, len: usize) -> BitSpanMut<W> {
[INFO] [stdout]     |                      ^^^^^ the lifetime is elided here    ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 115 |     pub fn slice_mut(&self, offset: usize, len: usize) -> BitSpanMut<'_, W> {
[INFO] [stdout]     |                                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 19.51s
[INFO] running `Command { std: "docker" "inspect" "47cdd8179e55a2bce4dac21ece5485288bd56d6878f608617d1ca6e53d06de3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47cdd8179e55a2bce4dac21ece5485288bd56d6878f608617d1ca6e53d06de3c", kill_on_drop: false }`
[INFO] [stdout] 47cdd8179e55a2bce4dac21ece5485288bd56d6878f608617d1ca6e53d06de3c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e683a31a234443e99e34e85bac8b587c1adaa49b79f41b79a4c02a4a3c5f3d14
[INFO] running `Command { std: "docker" "start" "-a" "e683a31a234443e99e34e85bac8b587c1adaa49b79f41b79a4c02a4a3c5f3d14", kill_on_drop: false }`
[INFO] [stderr] warning: struct `BitSetIter` is never constructed
[INFO] [stderr]    --> src/traits.rs:120:12
[INFO] [stderr]     |
[INFO] [stderr] 120 | pub struct BitSetIter<'a, T: BitRead + ?Sized> {
[INFO] [stderr]     |            ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `bitset_test_and_reset` is never used
[INFO] [stderr]    --> src/util.rs:210:15
[INFO] [stderr]     |
[INFO] [stderr] 210 | pub unsafe fn bitset_test_and_reset<T: BitWord>(ptr: NonNull<T>, len: usize, idx: usize) -> bool {
[INFO] [stderr]     |               ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `bitset_take` is never used
[INFO] [stderr]    --> src/util.rs:221:15
[INFO] [stderr]     |
[INFO] [stderr] 221 | pub unsafe fn bitset_take<T: BitWord>(ptr: NonNull<T>, len: usize, idx: usize) -> bool {
[INFO] [stderr]     |               ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `bitset_replace` is never used
[INFO] [stderr]    --> src/util.rs:231:15
[INFO] [stderr]     |
[INFO] [stderr] 231 | pub unsafe fn bitset_replace<T: BitWord>(
[INFO] [stderr]     |               ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `bitset_none` is never used
[INFO] [stderr]    --> src/util.rs:355:15
[INFO] [stderr]     |
[INFO] [stderr] 355 | pub unsafe fn bitset_none<T: BitWord>(ptr: NonNull<T>, len: usize) -> bool {
[INFO] [stderr]     |               ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/bitfixed.rs:133:17
[INFO] [stderr]     |
[INFO] [stderr] 133 |     pub fn iter(&self) -> Iter<W> {
[INFO] [stderr]     |                 ^^^^^     ^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 133 |     pub fn iter(&self) -> Iter<'_, W> {
[INFO] [stderr]     |                                +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/bitvec.rs:87:17
[INFO] [stderr]    |
[INFO] [stderr] 87 |     pub fn iter(&self) -> Iter<W> {
[INFO] [stderr]    |                 ^^^^^     ^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 the lifetime is elided here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 87 |     pub fn iter(&self) -> Iter<'_, W> {
[INFO] [stderr]    |                                +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/bitvec.rs:110:18
[INFO] [stderr]     |
[INFO] [stderr] 110 |     pub fn slice(&self, offset: usize, len: usize) -> BitSpan<W> {
[INFO] [stderr]     |                  ^^^^^ the lifetime is elided here    ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 110 |     pub fn slice(&self, offset: usize, len: usize) -> BitSpan<'_, W> {
[INFO] [stderr]     |                                                               +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/bitvec.rs:115:22
[INFO] [stderr]     |
[INFO] [stderr] 115 |     pub fn slice_mut(&self, offset: usize, len: usize) -> BitSpanMut<W> {
[INFO] [stderr]     |                      ^^^^^ the lifetime is elided here    ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 115 |     pub fn slice_mut(&self, offset: usize, len: usize) -> BitSpanMut<'_, W> {
[INFO] [stderr]     |                                                                      +++
[INFO] [stderr] 
[INFO] [stderr] warning: `fastbit` (lib) generated 9 warnings (run `cargo fix --lib -p fastbit` to apply 4 suggestions)
[INFO] [stderr] warning: `fastbit` (lib test) generated 5 warnings (5 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/fastbit-2ded0e9e08c52e45)
[INFO] [stdout] 
[INFO] [stdout] running 105 tests
[INFO] [stdout] test bitfixed::tests::test_all_and_any ... ok
[INFO] [stdout] test bitfixed::tests::test_copy_from ... ok
[INFO] [stdout] test bitfixed::tests::test_count_ones ... ok
[INFO] [stdout] test bitfixed::tests::test_bitwise_operations_edge_cases ... ok
[INFO] [stdout] test bitfixed::tests::test_bitwise_operations ... ok
[INFO] [stdout] test bitfixed::tests::test_fill_and_clear ... ok
[INFO] [stdout] test bitfixed::tests::test_eq ... ok
[INFO] [stdout] test bitfixed::tests::test_debug ... ok
[INFO] [stdout] test bitfixed::tests::test_iterator_after_clear_and_set ... ok
[INFO] [stdout] test bitfixed::tests::test_iterator_empty ... ok
[INFO] [stdout] test bitfixed::tests::test_iterator_large_bit_map ... ok
[INFO] [stdout] test bitfixed::tests::test_iterator_all_bits_set ... ok
[INFO] [stdout] test bitfixed::tests::test_intersection_count ... ok
[INFO] [stdout] test bitfixed::tests::test_iterator_multiple_bits ... ok
[INFO] [stdout] test bitfixed::tests::test_iterator_partial_last_word ... ok
[INFO] [stdout] test bitfixed::tests::test_is_disjoint ... ok
[INFO] [stdout] test bitfixed::tests::test_iterator_single_bit ... ok
[INFO] [stdout] test bitfixed::tests::test_iterator_sparse_bits ... ok
[INFO] [stdout] test bitfixed::tests::test_new_and_len ... ok
[INFO] [stdout] test bitfixed::tests::test_op ... ok
[INFO] [stdout] test bitfixed::tests::test_reset ... ok
[INFO] [stdout] test bitfixed::tests::test_resize_grow_and_shrink ... ok
[INFO] [stdout] test bitfixed::tests::test_set_and_test ... ok
[INFO] [stdout] test bitfixed::tests::test_test_and_set ... ok
[INFO] [stdout] test bitfixed::tests::test_zero_len ... ok
[INFO] [stdout] test bitgrid::tests::test_grid ... ok
[INFO] [stdout] test bitgrid::tests::test_line_or ... ok
[INFO] [stdout] test bitgrid::tests::test_print ... ok
[INFO] [stdout] test bitgrid::tests::test_reflexive_transitive_closure ... ok
[INFO] [stdout] test bitgrid::tests::test_transitive_closure ... ok
[INFO] [stdout] test bitlist::tests::test_all_and_any ... ok
[INFO] [stdout] test bitlist::tests::test_bit_stack_trait ... ok
[INFO] [stdout] test bitlist::tests::test_count_ones ... ok
[INFO] [stdout] test bitlist::tests::test_debug ... ok
[INFO] [stdout] test bitlist::tests::test_fill_and_clear ... ok
[INFO] [stdout] test bitlist::tests::test_first ... ok
[INFO] [stdout] test bitlist::tests::test_flip ... ok
[INFO] [stdout] test bitlist::tests::test_new_and_len ... ok
[INFO] [stdout] test bitlist::tests::test_out_of_bounds ... ok
[INFO] [stdout] test bitlist::tests::test_reset ... ok
[INFO] [stdout] test bitlist::tests::test_resize_grow_and_shrink ... ok
[INFO] [stdout] test bitlist::tests::test_test_and_set ... ok
[INFO] [stdout] test bitop::tests::test_bitset_difference ... ok
[INFO] [stdout] test bitop::tests::test_empty_sets ... ok
[INFO] [stdout] test bitlist::tests::test_set_and_test ... ok
[INFO] [stdout] test bitop::tests::test_bitset_union ... ok
[INFO] [stdout] test bitop::tests::test_with_single_bit ... ok
[INFO] [stdout] test bitspan::tests::test_bitspan_count_ones_and_any_all ... ok
[INFO] [stdout] test bitspan::tests::test_bitspan_iter ... ok
[INFO] [stdout] test bitspan::tests::test_bitspanmut_fill_and_clear ... ok
[INFO] [stdout] test bitspan::tests::test_bitspanmut_partial_fill_and_clear ... ok
[INFO] [stdout] test bitop::tests::test_bitset_intersection ... ok
[INFO] [stdout] test bitspan::tests::test_bitspan_from_raw_parts_and_test ... ok
[INFO] [stdout] test bitop::tests::test_bitset_symmetric_difference ... ok
[INFO] [stdout] test bitspan::tests::test_empty_bitspan ... ok
[INFO] [stdout] test bitvec::tests::test_all_and_any ... ok
[INFO] [stdout] test bitvec::tests::test_count_ones ... ok
[INFO] [stdout] test bitvec::tests::test_debug ... ok
[INFO] [stdout] test bitvec::tests::test_fill_and_clear ... ok
[INFO] [stdout] test bitspan::tests::test_bitspanmut_set_reset_test_and_set ... ok
[INFO] [stdout] test bitvec::tests::test_new_and_len ... ok
[INFO] [stdout] test bitvec::tests::test_reset ... ok
[INFO] [stdout] test bitvec::tests::test_resize_grow_and_shrink ... ok
[INFO] [stdout] test bitvec::tests::test_set_and_test ... ok
[INFO] [stdout] test bitspan::tests::test_bitspan_test_out_of_bounds - should panic ... ok
[INFO] [stdout] test bitvec::tests::test_test_and_set ... ok
[INFO] [stdout] test bitspan::tests::test_bitspanmut_set_out_of_bounds - should panic ... ok
[INFO] [stdout] test bitview::tests::test_bitview_all_ones ... ok
[INFO] [stdout] test bitvec::tests::test_zero_len ... ok
[INFO] [stdout] test bitview::tests::test_bitview_empty ... ok
[INFO] [stdout] test bitview::tests::test_bitview_basic ... ok
[INFO] [stdout] test bitview::tests::test_bitview_iter ... ok
[INFO] [stdout] test bitview::tests::test_bitview_iter_empty ... ok
[INFO] [stdout] test bitview::tests::test_bitview_iter_partial_word ... ok
[INFO] [stdout] test bitview::tests::test_bitview_mut ... ok
[INFO] [stdout] test bitview::tests::test_bitview_partial_last_word ... ok
[INFO] [stdout] test bitview::tests::test_bitview_single_bit ... ok
[INFO] [stdout] test iter::tests::test_iterator_after_clear_and_set ... ok
[INFO] [stdout] test iter::tests::test_iterator_empty ... ok
[INFO] [stdout] test iter::tests::test_iterator_large_bitvec ... ok
[INFO] [stdout] test iter::tests::test_iterator_multiple_bits ... ok
[INFO] [stdout] test iter::tests::test_iterator_single_bit ... ok
[INFO] [stdout] test tests::test_bitfixed_basic ... ok
[INFO] [stdout] test tests::test_bitset ... ok
[INFO] [stdout] test tests::test_bitvec_basic ... ok
[INFO] [stdout] test tests::test_bitvec_grow ... ok
[INFO] [stdout] test tests::test_bitvec_iter ... ok
[INFO] [stdout] test util::tests::test_bitset_count_ones ... ok
[INFO] [stdout] test iter::tests::test_iterator_partial_last_word ... ok
[INFO] [stdout] test iter::tests::test_iterator_all_bits_set ... ok
[INFO] [stdout] test bitview::tests::test_bitview_zero_bits ... ok
[INFO] [stdout] test util::tests::test_bitset_replace ... ok
[INFO] [stdout] test util::tests::test_bitset_take ... ok
[INFO] [stdout] test util::tests::test_bitset_test_and_set ... ok
[INFO] [stdout] test util::tests::test_bitset_flip ... ok
[INFO] [stdout] test tests::test_bitfixed_all ... ok
[INFO] [stdout] test iter::tests::test_iterator_sparse_bits ... ok
[INFO] [stdout] test util::tests::test_out_of_bounds - should panic ... ok
[INFO] [stdout] test util::tests::test_set_and_bitset_test ... ok
[INFO] [stdout] test util::tests::test_word_bit ... ok
[INFO] [stdout] test util::tests::test_word_len ... ok
[INFO] [stdout] test util::tests::test_bitset_all_any_none ... ok
[INFO] [stdout] test util::tests::test_bitset_fill_and_clear ... ok
[INFO] [stdout] test util::tests::test_fill_and_bitset_clear ... ok
[INFO] [stdout] test util::tests::test_mem ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 105 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.08s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests fastbit
[INFO] [stdout] 
[INFO] [stdout] running 42 tests
[INFO] [stdout] test src/bitfixed.rs - bitfixed::BitFixed (line 77) ... ok
[INFO] [stdout] test src/bitfixed.rs - bitfixed::&'_BitFixed<T>::not (line 710) ... ok
[INFO] [stdout] test src/bitfixed.rs - bitfixed::BitFixed<T>::bitor_assign (line 472) ... ok
[INFO] [stdout] test src/bitfixed.rs - bitfixed (line 10) ... ok
[INFO] [stdout] test src/bitfixed.rs - bitfixed::BitFixed<T>::bitand_assign (line 430) ... ok
[INFO] [stdout] test src/bitfixed.rs - bitfixed::BitFixed<T>::bitor (line 610) ... ok
[INFO] [stdout] test src/bitfixed.rs - bitfixed::BitViewMut<'a,T> (line 784) ... ok
[INFO] [stdout] test src/bitfixed.rs - bitfixed::BitFixed<T>::bitxor (line 660) ... ok
[INFO] [stdout] test src/bitfixed.rs - bitfixed::BitFixed<T>::bitand (line 558) ... ok
[INFO] [stdout] test src/bitfixed.rs - bitfixed::BitView<'a,T> (line 755) ... ok
[INFO] [stdout] test src/bitgrid.rs - bitgrid::BitGrid::new (line 58) ... ok
[INFO] [stdout] test src/bitfixed.rs - bitfixed::BitFixed<T>::eq (line 245) ... ok
[INFO] [stdout] test src/bitgrid.rs - bitgrid::BitGrid::set (line 80) ... ok
[INFO] [stdout] test src/bitgrid.rs - bitgrid (line 12) ... ok
[INFO] [stdout] test src/bitgrid.rs - bitgrid::BitGrid::is_symmetric (line 193) ... ok
[INFO] [stdout] test src/bitgrid.rs - bitgrid::BitGrid::reflexive_transitive_closure (line 319) ... ok
[INFO] [stdout] test src/bitfixed.rs - bitfixed::BitFixed<T>::clone (line 204) ... ok
[INFO] [stdout] test src/bitgrid.rs - bitgrid::BitGrid::make_symmetric (line 233) ... ok
[INFO] [stdout] test src/bitgrid.rs - bitgrid::BitGrid::len (line 117) ... ok
[INFO] [stdout] test src/bitfixed.rs - bitfixed::BitFixed<T>::bitxor_assign (line 512) ... ok
[INFO] [stdout] test src/bitgrid.rs - bitgrid::BitGrid::transitive_closure (line 273) ... ok
[INFO] [stdout] test src/bitgrid.rs - bitgrid::BitGrid::line (line 135) ... ok
[INFO] [stdout] test src/bitlist.rs - bitlist::BitList (line 16) ... ok
[INFO] [stdout] test src/bitlist.rs - bitlist::BitList::capacity (line 189) ... ok
[INFO] [stdout] test src/bitlist.rs - bitlist::BitList::first (line 137) ... ok
[INFO] [stdout] test src/bitlist.rs - bitlist::BitList::new (line 58) ... ok
[INFO] [stdout] test src/bitgrid.rs - bitgrid::BitGrid::test (line 100) ... ok
[INFO] [stdout] test src/bitop.rs - bitop::BitSetIntersection (line 148) ... ok
[INFO] [stdout] test src/bitlist.rs - bitlist::BitList::last (line 161) ... ok
[INFO] [stdout] test src/bitlist.rs - bitlist::BitList::iter (line 112) ... ok
[INFO] [stdout] test src/bitlist.rs - bitlist::BitList::with_capacity (line 86) ... ok
[INFO] [stdout] test src/bitlist.rs - bitlist::BitList::resize (line 349) ... ok
[INFO] [stdout] test src/bitop.rs - bitop::BitSetDifference (line 396) ... ok
[INFO] [stdout] test src/bitop.rs - bitop::BitSetSymmetricDifference (line 272) ... ok
[INFO] [stdout] test src/bitop.rs - bitop::BitSetUnion (line 52) ... ok
[INFO] [stdout] test src/bitop.rs - bitop (line 10) ... ok
[INFO] [stdout] test src/bitlist.rs - bitlist::BitList::push (line 400) ... ok
[INFO] [stdout] test src/bitspan.rs - bitspan (line 20) ... ok
[INFO] [stdout] test src/bitlist.rs - bitlist::BitList::pop (line 433) ... ok
[INFO] [stdout] test src/bitview.rs - bitview::BitViewMut (line 78) ... ok
[INFO] [stdout] test src/bitview.rs - bitview::BitView (line 36) ... ok
[INFO] [stdout] test src/lib.rs - (line 14) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 42 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stdout] all doctests ran in 0.67s; merged doctests compilation took 0.65s
[INFO] running `Command { std: "docker" "inspect" "e683a31a234443e99e34e85bac8b587c1adaa49b79f41b79a4c02a4a3c5f3d14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e683a31a234443e99e34e85bac8b587c1adaa49b79f41b79a4c02a4a3c5f3d14", kill_on_drop: false }`
[INFO] [stdout] e683a31a234443e99e34e85bac8b587c1adaa49b79f41b79a4c02a4a3c5f3d14
