[INFO] cloning repository https://github.com/lark-exploration/lark
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lark-exploration/lark" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flark-exploration%2Flark", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flark-exploration%2Flark'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 87d1e42107ced29f5ef23b70ef66e3b6fa2e74de
[INFO] testing lark-exploration/lark against beta-2025-09-21 for beta-1.91-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flark-exploration%2Flark" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-5-tc2/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/lark-exploration/lark
[INFO] finished tweaking git repo https://github.com/lark-exploration/lark
[INFO] tweaked toml for git repo https://github.com/lark-exploration/lark written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/lark-exploration/lark on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/lark-exploration/lark 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" "+beta-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7d36253123f65e6bea41a5a7bb65ab9f13e7bca6088d98d289034305121d0c4b
[INFO] running `Command { std: "docker" "start" "-a" "7d36253123f65e6bea41a5a7bb65ab9f13e7bca6088d98d289034305121d0c4b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7d36253123f65e6bea41a5a7bb65ab9f13e7bca6088d98d289034305121d0c4b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d36253123f65e6bea41a5a7bb65ab9f13e7bca6088d98d289034305121d0c4b", kill_on_drop: false }`
[INFO] [stdout] 7d36253123f65e6bea41a5a7bb65ab9f13e7bca6088d98d289034305121d0c4b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8d4c94db2e1c4827d4690544a2c4b30d40113a441195f1ae49369a33021c46a6
[INFO] running `Command { std: "docker" "start" "-a" "8d4c94db2e1c4827d4690544a2c4b30d40113a441195f1ae49369a33021c46a6", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.25
[INFO] [stderr]    Compiling libc v0.2.47
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling syn v0.15.33
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling rand_core v0.3.0
[INFO] [stderr]    Compiling autocfg v0.1.2
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling cfg-if v0.1.6
[INFO] [stderr]    Compiling serde v1.0.84
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling matches v0.1.8
[INFO] [stderr]    Compiling indexmap v1.0.2
[INFO] [stderr]    Compiling byteorder v1.2.7
[INFO] [stderr]    Compiling unicode-normalization v0.1.7
[INFO] [stderr]    Compiling stable_deref_trait v1.1.1
[INFO] [stderr]    Compiling unicode-bidi v0.3.4
[INFO] [stderr]    Compiling unreachable v1.0.0
[INFO] [stderr]    Compiling ryu v0.2.7
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling owning_ref v0.4.0
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.4
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling rustc-hash v1.0.1
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling smallvec v0.6.7
[INFO] [stderr]    Compiling num-derive v0.2.3
[INFO] [stderr]    Compiling scopeguard v0.3.3
[INFO] [stderr]    Compiling percent-encoding v1.0.1
[INFO] [stderr]    Compiling lark-debug-with v0.1.0 (/opt/rustwide/workdir/components/lark-debug-with)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> components/lark-debug-with/src/lib.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | #![feature(in_band_lifetimes)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: removed in 1.61.0; see <https://github.com/rust-lang/rust/pull/93845> for more information
[INFO] [stdout]   = note: removed due to unsolved ergonomic questions and added lifetime resolution complexity
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rand_os v0.1.1
[INFO] [stdout] error[E0261]: use of undeclared lifetime name `'me`
[INFO] [stdout]   --> components/lark-debug-with/src/lib.rs:18:32
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn debug_with<Cx: ?Sized>(&'me self, cx: &'me Cx) -> DebugCxPair<'me, &'me Self, Cx> {
[INFO] [stdout]    |                                ^^^ undeclared lifetime
[INFO] [stdout]    |
[INFO] [stdout] help: consider introducing lifetime `'me` here
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn debug_with<'me, Cx: ?Sized>(&'me self, cx: &'me Cx) -> DebugCxPair<'me, &'me Self, Cx> {
[INFO] [stdout]    |                   ++++
[INFO] [stdout] help: consider introducing lifetime `'me` here
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub trait DebugWith<'me> {
[INFO] [stdout]    |                    +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0261]: use of undeclared lifetime name `'me`
[INFO] [stdout]   --> components/lark-debug-with/src/lib.rs:18:47
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn debug_with<Cx: ?Sized>(&'me self, cx: &'me Cx) -> DebugCxPair<'me, &'me Self, Cx> {
[INFO] [stdout]    |                                               ^^^ undeclared lifetime
[INFO] [stdout]    |
[INFO] [stdout] help: consider introducing lifetime `'me` here
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn debug_with<'me, Cx: ?Sized>(&'me self, cx: &'me Cx) -> DebugCxPair<'me, &'me Self, Cx> {
[INFO] [stdout]    |                   ++++
[INFO] [stdout] help: consider introducing lifetime `'me` here
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub trait DebugWith<'me> {
[INFO] [stdout]    |                    +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0261]: use of undeclared lifetime name `'me`
[INFO] [stdout]   --> components/lark-debug-with/src/lib.rs:18:70
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn debug_with<Cx: ?Sized>(&'me self, cx: &'me Cx) -> DebugCxPair<'me, &'me Self, Cx> {
[INFO] [stdout]    |                                                                      ^^^ undeclared lifetime
[INFO] [stdout]    |
[INFO] [stdout] help: consider introducing lifetime `'me` here
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn debug_with<'me, Cx: ?Sized>(&'me self, cx: &'me Cx) -> DebugCxPair<'me, &'me Self, Cx> {
[INFO] [stdout]    |                   ++++
[INFO] [stdout] help: consider introducing lifetime `'me` here
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub trait DebugWith<'me> {
[INFO] [stdout]    |                    +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0261]: use of undeclared lifetime name `'me`
[INFO] [stdout]   --> components/lark-debug-with/src/lib.rs:18:76
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn debug_with<Cx: ?Sized>(&'me self, cx: &'me Cx) -> DebugCxPair<'me, &'me Self, Cx> {
[INFO] [stdout]    |                                                                            ^^^ undeclared lifetime
[INFO] [stdout]    |
[INFO] [stdout] help: consider introducing lifetime `'me` here
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn debug_with<'me, Cx: ?Sized>(&'me self, cx: &'me Cx) -> DebugCxPair<'me, &'me Self, Cx> {
[INFO] [stdout]    |                   ++++
[INFO] [stdout] help: consider introducing lifetime `'me` here
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub trait DebugWith<'me> {
[INFO] [stdout]    |                    +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0261]: use of undeclared lifetime name `'me`
[INFO] [stdout]   --> components/lark-debug-with/src/lib.rs:22:47
[INFO] [stdout]    |
[INFO] [stdout] 22 |     fn into_debug_with<Cx: ?Sized>(self, cx: &'me Cx) -> DebugCxPair<'me, Self, Cx>
[INFO] [stdout]    |                                               ^^^ undeclared lifetime
[INFO] [stdout]    |
[INFO] [stdout] help: consider introducing lifetime `'me` here
[INFO] [stdout]    |
[INFO] [stdout] 22 |     fn into_debug_with<'me, Cx: ?Sized>(self, cx: &'me Cx) -> DebugCxPair<'me, Self, Cx>
[INFO] [stdout]    |                        ++++
[INFO] [stdout] help: consider introducing lifetime `'me` here
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub trait DebugWith<'me> {
[INFO] [stdout]    |                    +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0261]: use of undeclared lifetime name `'me`
[INFO] [stdout]   --> components/lark-debug-with/src/lib.rs:22:70
[INFO] [stdout]    |
[INFO] [stdout] 22 |     fn into_debug_with<Cx: ?Sized>(self, cx: &'me Cx) -> DebugCxPair<'me, Self, Cx>
[INFO] [stdout]    |                                                                      ^^^ undeclared lifetime
[INFO] [stdout]    |
[INFO] [stdout] help: consider introducing lifetime `'me` here
[INFO] [stdout]    |
[INFO] [stdout] 22 |     fn into_debug_with<'me, Cx: ?Sized>(self, cx: &'me Cx) -> DebugCxPair<'me, Self, Cx>
[INFO] [stdout]    |                        ++++
[INFO] [stdout] help: consider introducing lifetime `'me` here
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub trait DebugWith<'me> {
[INFO] [stdout]    |                    +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0261]: use of undeclared lifetime name `'me`
[INFO] [stdout]   --> components/lark-debug-with/src/lib.rs:62:57
[INFO] [stdout]    |
[INFO] [stdout] 62 | impl<Value, Cx: ?Sized> std::fmt::Debug for DebugCxPair<'me, Value, Cx>
[INFO] [stdout]    |                                                         ^^^ undeclared lifetime
[INFO] [stdout]    |
[INFO] [stdout] help: consider introducing lifetime `'me` here
[INFO] [stdout]    |
[INFO] [stdout] 62 | impl<'me, Value, Cx: ?Sized> std::fmt::Debug for DebugCxPair<'me, Value, Cx>
[INFO] [stdout]    |      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0261]: use of undeclared lifetime name `'me`
[INFO] [stdout]   --> components/lark-debug-with/src/lib.rs:71:59
[INFO] [stdout]    |
[INFO] [stdout] 71 | impl<Value, Cx: ?Sized> std::fmt::Display for DebugCxPair<'me, Value, Cx>
[INFO] [stdout]    |                                                           ^^^ undeclared lifetime
[INFO] [stdout]    |
[INFO] [stdout] help: consider introducing lifetime `'me` here
[INFO] [stdout]    |
[INFO] [stdout] 71 | impl<'me, Value, Cx: ?Sized> std::fmt::Display for DebugCxPair<'me, Value, Cx>
[INFO] [stdout]    |      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> components/lark-debug-with/src/lib.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | #![feature(box_patterns)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> components/lark-debug-with/src/lib.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | #![feature(never_type)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> components/lark-debug-with/src/lib.rs:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | #![feature(in_band_lifetimes)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> components/lark-debug-with/src/lib.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | #![feature(specialization)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `specialization` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> components/lark-debug-with/src/lib.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | #![feature(specialization)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]   = help: consider using `min_specialization` instead, which is more stable and complete
[INFO] [stdout]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling lock_api v0.1.5
[INFO] [stderr]    Compiling log v0.4.6
[INFO] [stderr]    Compiling itoa v0.4.3
[INFO] [stderr]    Compiling either v1.5.0
[INFO] [stderr]    Compiling rand_pcg v0.1.1
[INFO] [stdout] Some errors have detailed explanations: E0261, E0554, E0557.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0261`.
[INFO] [stdout] 
[INFO] [stderr]    Compiling parking_lot_core v0.4.0
[INFO] [stderr] error: could not compile `lark-debug-with` (lib) due to 13 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "8d4c94db2e1c4827d4690544a2c4b30d40113a441195f1ae49369a33021c46a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d4c94db2e1c4827d4690544a2c4b30d40113a441195f1ae49369a33021c46a6", kill_on_drop: false }`
[INFO] [stdout] 8d4c94db2e1c4827d4690544a2c4b30d40113a441195f1ae49369a33021c46a6
