[INFO] fetching crate osprey 0.4.4...
[INFO] testing osprey-0.4.4 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate osprey 0.4.4 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate osprey 0.4.4
[INFO] finished tweaking crates.io crate osprey 0.4.4
[INFO] tweaked toml for crates.io crate osprey 0.4.4 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate osprey 0.4.4 on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "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" "+beta-2026-04-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 161 packages to latest compatible versions
[INFO] [stderr]       Adding clap v2.34.0 (available: v4.6.1)
[INFO] [stderr]       Adding falcon v0.4.12 (available: v0.6.0)
[INFO] [stderr]       Adding gluon v0.9.4 (available: v0.18.2)
[INFO] [stderr]       Adding gluon_vm v0.9.4 (available: v0.18.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 395619cec3d7fb3a9d49119697c43f2857ff50e5d6e2a768ac218401dd49d323
[INFO] running `Command { std: "docker" "start" "-a" "395619cec3d7fb3a9d49119697c43f2857ff50e5d6e2a768ac218401dd49d323", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "395619cec3d7fb3a9d49119697c43f2857ff50e5d6e2a768ac218401dd49d323", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "395619cec3d7fb3a9d49119697c43f2857ff50e5d6e2a768ac218401dd49d323", kill_on_drop: false }`
[INFO] [stdout] 395619cec3d7fb3a9d49119697c43f2857ff50e5d6e2a768ac218401dd49d323
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a15a44eebb2bd5727d4091b5af67363fd7bb3c6d0bfbfd89505c2063bbfdd6a1
[INFO] running `Command { std: "docker" "start" "-a" "a15a44eebb2bd5727d4091b5af67363fd7bb3c6d0bfbfd89505c2063bbfdd6a1", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr]    Compiling memchr v2.8.0
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling object v0.37.3
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling adler2 v2.0.1
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[INFO] [stderr]    Compiling gimli v0.32.3
[INFO] [stderr]    Compiling autocfg v0.1.8
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling rustc-demangle v0.1.27
[INFO] [stderr]    Compiling lazy_static v1.5.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling unicode-xid v0.2.6
[INFO] [stderr]    Compiling rand_pcg v0.1.2
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[INFO] [stderr]    Compiling ordered-float v1.1.1
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[INFO] [stderr]    Compiling stable_deref_trait v1.2.1
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[INFO] [stderr]    Compiling bit-vec v0.6.3
[INFO] [stderr]    Compiling opaque-debug v0.2.3
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[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling termcolor v1.4.1
[INFO] [stderr]    Compiling term v0.4.6
[INFO] [stderr]    Compiling fixedbitset v0.1.9
[INFO] [stderr]    Compiling new_debug_unreachable v1.0.6
[INFO] [stderr]    Compiling bindgen v0.51.1
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling ordermap v0.3.5
[INFO] [stderr]    Compiling fake-simd v0.1.2
[INFO] [stderr]    Compiling string_cache_codegen v0.4.4
[INFO] [stderr]    Compiling precomputed-hash v0.1.1
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[INFO] [stderr]    Compiling bit-set v0.5.3
[INFO] [stderr]    Compiling generic-array v0.12.4
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling addr2line v0.25.1
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling string_cache v0.7.5
[INFO] [stderr]    Compiling digest v0.8.1
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[INFO] [stderr]    Compiling cexpr v0.3.6
[INFO] [stderr]    Compiling ascii-canvas v1.0.0
[INFO] [stderr]    Compiling which v3.1.1
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[INFO] [stderr]    Compiling sha2 v0.8.2
[INFO] [stderr]    Compiling shlex v0.1.1
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling lalrpop-util v0.16.3
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]    Compiling regex-syntax v0.6.29
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling diff v0.1.13
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling version_check v0.9.5
[INFO] [stderr]    Compiling walkdir v2.5.0
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling gluon_vm v0.9.4
[INFO] [stderr]    Compiling union-find v0.3.3
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]    Compiling rpds v0.5.0
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling futures v0.1.31
[INFO] [stderr]    Compiling regex-automata v0.4.14
[INFO] [stderr]    Compiling frunk_core v0.2.4
[INFO] [stderr]    Compiling scroll_derive v0.10.5
[INFO] [stderr]    Compiling mopa v0.2.2
[INFO] [stderr]    Compiling plain v0.2.3
[INFO] [stderr]    Compiling rand v0.5.6
[INFO] [stderr]    Compiling base64 v0.12.3
[INFO] [stderr]    Compiling backtrace v0.3.76
[INFO] [stderr]    Compiling scroll v0.10.2
[INFO] [stderr]    Compiling serde_json v1.0.149
[INFO] [stderr]    Compiling goblin v0.2.3
[INFO] [stderr]    Compiling gluon_codegen v0.9.4
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling codespan v0.1.3
[INFO] [stderr]    Compiling codespan-reporting v0.1.4
[INFO] [stderr]    Compiling gluon_base v0.9.4
[INFO] [stderr]    Compiling regex v1.12.3
[INFO] [stderr]    Compiling gluon_check v0.9.4
[INFO] [stderr]    Compiling docopt v1.1.1
[INFO] [stderr]    Compiling env_logger v0.6.2
[INFO] [stderr]    Compiling gluon v0.9.4
[INFO] [stderr]    Compiling lalrpop v0.16.3
[INFO] [stdout] error[E0713]: borrow may still be in use when destructor runs
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/gluon_vm-0.9.4/src/stack.rs:502:9
[INFO] [stdout]     |
[INFO] [stdout] 493 | impl<'a: 'b, 'b, S> StackFrame<'b, S>
[INFO] [stdout]     |              -- lifetime `'b` defined here
[INFO] [stdout] ...
[INFO] [stdout] 502 |         self.stack
[INFO] [stdout]     |         ^^^^^^^^^^ returning this value requires that `*self.stack` is borrowed for `'b`
[INFO] [stdout] 503 |     }
[INFO] [stdout]     |     - here, drop of `self` needs exclusive access to `*self.stack`, because the type `stack::StackFrame<'_, S>` implements the `Drop` trait
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0713]: borrow may still be in use when destructor runs
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/gluon_vm-0.9.4/src/stack.rs:584:28
[INFO] [stdout]     |
[INFO] [stdout] 493 | impl<'a: 'b, 'b, S> StackFrame<'b, S>
[INFO] [stdout]     |              -- lifetime `'b` defined here
[INFO] [stdout] ...
[INFO] [stdout] 584 |                 return Err(self.stack);
[INFO] [stdout]     |                        ----^^^^^^^^^^- returning this value requires that `*self.stack` is borrowed for `'b`
[INFO] [stdout] ...
[INFO] [stdout] 608 |     }
[INFO] [stdout]     |     - here, drop of `self` needs exclusive access to `*self.stack`, because the type `stack::StackFrame<'_, S>` implements the `Drop` trait
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling falcon_capstone v0.4.1
[INFO] [stdout] error[E0502]: cannot borrow `*self.thread` as immutable because it is also borrowed as mutable
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/gluon_vm-0.9.4/src/thread.rs:1398:19
[INFO] [stdout]      |
[INFO] [stdout] 1397 |         } = **self;
[INFO] [stdout]      |              ----- mutable borrow occurs here
[INFO] [stdout] 1398 |         alloc(gc, self.thread, &stack, data)
[INFO] [stdout]      |                   ^^^^^^^^^^^  ------ mutable borrow later used here
[INFO] [stdout]      |                   |
[INFO] [stdout]      |                   immutable borrow occurs here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0502]: cannot borrow `*self.thread` as immutable because it is also borrowed as mutable
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/gluon_vm-0.9.4/src/thread.rs:1717:21
[INFO] [stdout]      |
[INFO] [stdout] 1714 |       fn borrow_mut(&mut self) -> ExecuteContext<State> {
[INFO] [stdout]      |                     - let's call the lifetime of this reference `'1`
[INFO] [stdout] 1715 |           let context = &mut **self;
[INFO] [stdout]      |                               ----- mutable borrow occurs here
[INFO] [stdout] 1716 | /         ExecuteContext {
[INFO] [stdout] 1717 | |             thread: self.thread,
[INFO] [stdout]      | |                     ^^^^^^^^^^^ immutable borrow occurs here
[INFO] [stdout] 1718 | |             gc: &mut context.gc,
[INFO] [stdout] 1719 | |             stack: StackFrame::current(&mut context.stack),
[INFO] [stdout] 1720 | |             hook: &mut context.hook,
[INFO] [stdout] 1721 | |         }
[INFO] [stdout]      | |_________- returning this value requires that `*self` is borrowed for `'1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0502, E0713.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0502`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `gluon_vm` (lib) due to 4 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "a15a44eebb2bd5727d4091b5af67363fd7bb3c6d0bfbfd89505c2063bbfdd6a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a15a44eebb2bd5727d4091b5af67363fd7bb3c6d0bfbfd89505c2063bbfdd6a1", kill_on_drop: false }`
[INFO] [stdout] a15a44eebb2bd5727d4091b5af67363fd7bb3c6d0bfbfd89505c2063bbfdd6a1
