[INFO] fetching crate fieldset 0.1.4...
[INFO] testing fieldset-0.1.4 against 1.99.0-beta.8+cargoflags=--release for beta-release-1.100-2
[INFO] extracting crate fieldset 0.1.4 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate fieldset 0.1.4
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate fieldset 0.1.4
[INFO] tweaked toml for crates.io crate fieldset 0.1.4 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate fieldset 0.1.4 on toolchain 1.99.0-beta.8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 58 packages to highest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded fieldset_macro v0.1.4
[INFO] [stderr]   Downloaded pulldown-cmark v0.9.6
[INFO] [stderr]   Downloaded version-sync v0.9.5
[INFO] [stderr]   Downloaded toml v0.7.8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 92e370b70633c50bce9d429ac51ecebaa5db635fc945e128d30a1b89049d9a93
[INFO] running `Command { std: "docker" "start" "92e370b70633c50bce9d429ac51ecebaa5db635fc945e128d30a1b89049d9a93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "92e370b70633c50bce9d429ac51ecebaa5db635fc945e128d30a1b89049d9a93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "92e370b70633c50bce9d429ac51ecebaa5db635fc945e128d30a1b89049d9a93" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "92e370b70633c50bce9d429ac51ecebaa5db635fc945e128d30a1b89049d9a93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "92e370b70633c50bce9d429ac51ecebaa5db635fc945e128d30a1b89049d9a93" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-segmentation v1.13.3
[INFO] [stderr]    Compiling syn v2.0.119
[INFO] [stderr]    Compiling convert_case v0.6.0
[INFO] [stderr]    Compiling fieldset_macro v0.1.4
[INFO] [stderr]    Compiling fieldset v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/bitset.rs:24:19
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn offset(&mut self, offset: usize) -> BitSetOffsetted {
[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] 24 |     pub fn offset(&mut self, offset: usize) -> BitSetOffsetted<'_> {
[INFO] [stdout]    |                                                               ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/bitset.rs:53:19
[INFO] [stdout]    |
[INFO] [stdout] 53 |     pub fn offset(&mut self, offset: usize) -> BitSetOffsetted {
[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] 53 |     pub fn offset(&mut self, offset: usize) -> BitSetOffsetted<'_> {
[INFO] [stdout]    |                                                               ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 3.03s
[INFO] running `Command { std: "docker" "inspect" "92e370b70633c50bce9d429ac51ecebaa5db635fc945e128d30a1b89049d9a93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "92e370b70633c50bce9d429ac51ecebaa5db635fc945e128d30a1b89049d9a93" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "test" "--frozen" "--no-run" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.107
[INFO] [stderr]    Compiling quote v1.0.47
[INFO] [stderr]    Compiling unicode-ident v1.0.27
[INFO] [stderr]    Compiling percent-encoding v2.3.2
[INFO] [stderr]    Compiling regex-syntax v0.8.11
[INFO] [stderr]    Compiling winnow v0.5.40
[INFO] [stderr]    Compiling pulldown-cmark v0.9.6
[INFO] [stderr]    Compiling serde v1.0.229
[INFO] [stderr]    Compiling bitflags v2.13.2
[INFO] [stderr]    Compiling unicase v2.10.0
[INFO] [stderr]    Compiling semver v1.0.28
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/bitset.rs:24:19
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn offset(&mut self, offset: usize) -> BitSetOffsetted {
[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] 24 |     pub fn offset(&mut self, offset: usize) -> BitSetOffsetted<'_> {
[INFO] [stdout]    |                                                               ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/bitset.rs:53:19
[INFO] [stdout]    |
[INFO] [stdout] 53 |     pub fn offset(&mut self, offset: usize) -> BitSetOffsetted {
[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] 53 |     pub fn offset(&mut self, offset: usize) -> BitSetOffsetted<'_> {
[INFO] [stdout]    |                                                               ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling form_urlencoded v1.2.2
[INFO] [stderr]    Compiling url v2.5.8
[INFO] [stderr]    Compiling serde_spanned v0.6.9
[INFO] [stderr]    Compiling toml_datetime v0.6.11
[INFO] [stderr]    Compiling syn v2.0.119
[INFO] [stderr]    Compiling regex-automata v0.4.18
[INFO] [stderr]    Compiling toml_edit v0.19.15
[INFO] [stderr]    Compiling regex v1.13.1
[INFO] [stderr]    Compiling toml v0.7.8
[INFO] [stderr]    Compiling version-sync v0.9.5
[INFO] [stderr]    Compiling fieldset v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> src/lib.rs:73:19
[INFO] [stdout]    |
[INFO] [stdout] 73 | #![cfg_attr(test, feature(impl_trait_in_assoc_type))]
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `fieldset` (lib test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "92e370b70633c50bce9d429ac51ecebaa5db635fc945e128d30a1b89049d9a93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92e370b70633c50bce9d429ac51ecebaa5db635fc945e128d30a1b89049d9a93", kill_on_drop: false }`
[INFO] [stdout] 92e370b70633c50bce9d429ac51ecebaa5db635fc945e128d30a1b89049d9a93
