[INFO] cloning repository https://github.com/liarokapisv/fieldset
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/liarokapisv/fieldset" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fliarokapisv%2Ffieldset", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fliarokapisv%2Ffieldset'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 85f1a62b4b0ae4101ffbb83dc82d9680d55433a5
[INFO] checking liarokapisv/fieldset against 1.95.0 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fliarokapisv%2Ffieldset" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/liarokapisv/fieldset
[INFO] finished tweaking git repo https://github.com/liarokapisv/fieldset
[INFO] tweaked toml for git repo https://github.com/liarokapisv/fieldset written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/liarokapisv/fieldset on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/liarokapisv/fieldset 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" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 1 package to latest compatible version
[INFO] [stderr]       Adding fieldset_macro v0.1.4
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded version-sync v0.9.5
[INFO] [stderr]   Downloaded fieldset_macro v0.1.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e1ac9c4d4f4dda5cb842393c27ca2cffc7c8ea99d2f9a093464bcd6ae78a508b
[INFO] running `Command { std: "docker" "start" "-a" "e1ac9c4d4f4dda5cb842393c27ca2cffc7c8ea99d2f9a093464bcd6ae78a508b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e1ac9c4d4f4dda5cb842393c27ca2cffc7c8ea99d2f9a093464bcd6ae78a508b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1ac9c4d4f4dda5cb842393c27ca2cffc7c8ea99d2f9a093464bcd6ae78a508b", kill_on_drop: false }`
[INFO] [stdout] e1ac9c4d4f4dda5cb842393c27ca2cffc7c8ea99d2f9a093464bcd6ae78a508b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d4a95cf52174b95faa622923c7a4e7f255927e0ed410b2fb1288fb0610876ff0
[INFO] running `Command { std: "docker" "start" "-a" "d4a95cf52174b95faa622923c7a4e7f255927e0ed410b2fb1288fb0610876ff0", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.203
[INFO] [stderr]    Compiling proc-macro2 v1.0.79
[INFO] [stderr]     Checking unicode-ident v1.0.12
[INFO] [stderr]    Compiling pulldown-cmark v0.9.6
[INFO] [stderr]     Checking regex-syntax v0.8.4
[INFO] [stderr]     Checking winnow v0.5.40
[INFO] [stderr]    Compiling semver v1.0.23
[INFO] [stderr]    Compiling convert_case v0.6.0
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]     Checking regex-automata v0.4.7
[INFO] [stderr]     Checking serde_spanned v0.6.6
[INFO] [stderr]     Checking toml_datetime v0.6.6
[INFO] [stderr]     Checking toml_edit v0.19.15
[INFO] [stderr]    Compiling fieldset_macro v0.1.4
[INFO] [stderr]     Checking regex v1.10.5
[INFO] [stderr]     Checking 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]     Checking toml v0.7.8
[INFO] [stderr]     Checking version-sync v0.9.5
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable 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" "d4a95cf52174b95faa622923c7a4e7f255927e0ed410b2fb1288fb0610876ff0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d4a95cf52174b95faa622923c7a4e7f255927e0ed410b2fb1288fb0610876ff0", kill_on_drop: false }`
[INFO] [stdout] d4a95cf52174b95faa622923c7a4e7f255927e0ed410b2fb1288fb0610876ff0
