[INFO] fetching crate mvsync 1.3.1...
[INFO] testing mvsync-1.3.1 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-8
[INFO] extracting crate mvsync 1.3.1 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate mvsync 1.3.1
[INFO] finished tweaking crates.io crate mvsync 1.3.1
[INFO] tweaked toml for crates.io crate mvsync 1.3.1 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate mvsync 1.3.1 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 31 packages to latest compatible versions
[INFO] [stderr]       Adding mvutils v0.8.2 (available: v1.6.3)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded mvutils-proc-macro v0.4.0
[INFO] [stderr]   Downloaded mvutils v0.8.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7d092fc2ebf0d7024937331a4e4ce15cf4f37999939b18dfc6d28cb93038e723
[INFO] running `Command { std: "docker" "start" "-a" "7d092fc2ebf0d7024937331a4e4ce15cf4f37999939b18dfc6d28cb93038e723", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7d092fc2ebf0d7024937331a4e4ce15cf4f37999939b18dfc6d28cb93038e723", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d092fc2ebf0d7024937331a4e4ce15cf4f37999939b18dfc6d28cb93038e723", kill_on_drop: false }`
[INFO] [stdout] 7d092fc2ebf0d7024937331a4e4ce15cf4f37999939b18dfc6d28cb93038e723
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0079fd72d2aa9945683e711bb87667b7cdf5e6f470d30eb3e08c3ebd960f81a6
[INFO] running `Command { std: "docker" "start" "-a" "0079fd72d2aa9945683e711bb87667b7cdf5e6f470d30eb3e08c3ebd960f81a6", kill_on_drop: false }`
[INFO] [stderr]    Compiling once_cell v1.21.3
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling ahash v0.8.12
[INFO] [stderr]    Compiling bytebuffer v2.3.0
[INFO] [stderr]    Compiling num_cpus v1.17.0
[INFO] [stderr]    Compiling mvutils-proc-macro v0.4.0
[INFO] [stderr]    Compiling hashbrown v0.14.5
[INFO] [stderr]    Compiling crossbeam-channel v0.5.15
[INFO] [stderr]    Compiling mvutils v0.8.2
[INFO] [stderr]    Compiling mvsync v1.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.95s
[INFO] running `Command { std: "docker" "inspect" "0079fd72d2aa9945683e711bb87667b7cdf5e6f470d30eb3e08c3ebd960f81a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0079fd72d2aa9945683e711bb87667b7cdf5e6f470d30eb3e08c3ebd960f81a6", kill_on_drop: false }`
[INFO] [stdout] 0079fd72d2aa9945683e711bb87667b7cdf5e6f470d30eb3e08c3ebd960f81a6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5c83e018aa14e9dcfae8238a118590d14d4796806a21c0c0e3e31072141ed104
[INFO] running `Command { std: "docker" "start" "-a" "5c83e018aa14e9dcfae8238a118590d14d4796806a21c0c0e3e31072141ed104", kill_on_drop: false }`
[INFO] [stderr]    Compiling mvsync v1.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0599]: no method named `register_main_thread` found for struct `Arc<MVSync>` in the current scope
[INFO] [stdout]    --> src/lib.rs:318:14
[INFO] [stdout]     |
[INFO] [stdout] 318 |         sync.register_main_thread(|sync| async move {
[INFO] [stdout]     |         -----^^^^^^^^^^^^^^^^^^^^ method not found in `Arc<MVSync>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> src/lib.rs:318:36
[INFO] [stdout]     |
[INFO] [stdout] 318 |         sync.register_main_thread(|sync| async move {
[INFO] [stdout]     |                                    ^^^^
[INFO] [stdout] 319 |             let (a, _) = sync.create_async_task(|| async move {
[INFO] [stdout]     |                          ---- type must be known at this point
[INFO] [stdout]     |
[INFO] [stdout] help: consider giving this closure parameter an explicit type
[INFO] [stdout]     |
[INFO] [stdout] 318 |         sync.register_main_thread(|sync: /* Type */| async move {
[INFO] [stdout]     |                                        ++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0282, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mvsync` (lib test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "5c83e018aa14e9dcfae8238a118590d14d4796806a21c0c0e3e31072141ed104", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c83e018aa14e9dcfae8238a118590d14d4796806a21c0c0e3e31072141ed104", kill_on_drop: false }`
[INFO] [stdout] 5c83e018aa14e9dcfae8238a118590d14d4796806a21c0c0e3e31072141ed104