[INFO] fetching crate mailbox_processor_rs 0.3.0...
[INFO] testing mailbox_processor_rs-0.3.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate mailbox_processor_rs 0.3.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate mailbox_processor_rs 0.3.0
[INFO] finished tweaking crates.io crate mailbox_processor_rs 0.3.0
[INFO] tweaked toml for crates.io crate mailbox_processor_rs 0.3.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mailbox_processor_rs 0.3.0 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 41 packages to latest compatible versions
[INFO] [stderr]       Adding thiserror v1.0.69 (available: v2.0.17)
[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-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 72a7adeeee019dac630d66b2c756987313660d3d2a80c4608994f7d8eff5cb69
[INFO] running `Command { std: "docker" "start" "-a" "72a7adeeee019dac630d66b2c756987313660d3d2a80c4608994f7d8eff5cb69", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "72a7adeeee019dac630d66b2c756987313660d3d2a80c4608994f7d8eff5cb69", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72a7adeeee019dac630d66b2c756987313660d3d2a80c4608994f7d8eff5cb69", kill_on_drop: false }`
[INFO] [stdout] 72a7adeeee019dac630d66b2c756987313660d3d2a80c4608994f7d8eff5cb69
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dc2c8416c7c1f547db68976d2f91bf27c27a793efb0786f825b7fb7fc69403f8
[INFO] running `Command { std: "docker" "start" "-a" "dc2c8416c7c1f547db68976d2f91bf27c27a793efb0786f825b7fb7fc69403f8", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling tokio-macros v2.5.0
[INFO] [stderr]    Compiling tokio v1.47.1
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]    Compiling mailbox_processor_rs v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.34s
[INFO] running `Command { std: "docker" "inspect" "dc2c8416c7c1f547db68976d2f91bf27c27a793efb0786f825b7fb7fc69403f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc2c8416c7c1f547db68976d2f91bf27c27a793efb0786f825b7fb7fc69403f8", kill_on_drop: false }`
[INFO] [stdout] dc2c8416c7c1f547db68976d2f91bf27c27a793efb0786f825b7fb7fc69403f8
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 131e6ebcf374b1528f4e69683d74ee1ed7c4aa6cfc7dcf284669d46a71e5fff9
[INFO] running `Command { std: "docker" "start" "-a" "131e6ebcf374b1528f4e69683d74ee1ed7c4aa6cfc7dcf284669d46a71e5fff9", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling tokio-macros v2.5.0
[INFO] [stderr]    Compiling async-stream-impl v0.3.6
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling async-stream v0.3.6
[INFO] [stderr]    Compiling tokio v1.47.1
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]    Compiling tokio-stream v0.1.17
[INFO] [stderr]    Compiling mailbox_processor_rs v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling tokio-test v0.4.4
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 8.85s
[INFO] running `Command { std: "docker" "inspect" "131e6ebcf374b1528f4e69683d74ee1ed7c4aa6cfc7dcf284669d46a71e5fff9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "131e6ebcf374b1528f4e69683d74ee1ed7c4aa6cfc7dcf284669d46a71e5fff9", kill_on_drop: false }`
[INFO] [stdout] 131e6ebcf374b1528f4e69683d74ee1ed7c4aa6cfc7dcf284669d46a71e5fff9
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f22af92f3b56da0db3022de05c7dbe3683d6038192694a173dcbf64d90f26416
[INFO] running `Command { std: "docker" "start" "-a" "f22af92f3b56da0db3022de05c7dbe3683d6038192694a173dcbf64d90f26416", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/mailbox_processor_rs-a7e3a72583893ba0)
[INFO] [stdout] 
[INFO] [stdout] running 13 tests
[INFO] [stdout] test callback::tests::can_send_message_to_self ... ok
[INFO] [stdout] test callback::tests::can_stop_mailbox_multiple_times ... ok
[INFO] [stdout] test callback::tests::can_get_replies ... ok
[INFO] [stdout] test callback::tests::messages_arrive_in_mailbox ... ok
[INFO] [stdout] test callback::tests::can_stop_mailbox ... ok
[INFO] [stdout] test callback::tests::post_and_forget_does_not_wait_for_a_result ... ok
[INFO] [stdout] test callback::tests::messages_arrive_in_order ... ok
[INFO] [stdout] test plain::tests::can_get_replies ... ok
[INFO] [stdout] test plain::tests::can_send_message_to_self ... ok
[INFO] [stdout] test plain::tests::post_and_forget_does_not_wait_for_a_result ... ok
[INFO] [stdout] test plain::tests::messages_arrive_in_mailbox ... ok
[INFO] [stdout] test plain::tests::can_stop_mailbox_by_returning_from_body_function ... ok
[INFO] [stdout] test plain::tests::messages_arrive_in_order ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 13 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests mailbox_processor_rs
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/callback.rs - callback::CallbackMailboxProcessor (line 34) ... FAILED
[INFO] [stdout] test src/plain.rs - plain::PlainMailboxProcessor (line 28) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/callback.rs - callback::CallbackMailboxProcessor (line 34) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `mailbox_processor`
[INFO] [stdout]  --> src/callback.rs:36:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use mailbox_processor::callback::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^ use of unresolved module or unlinked crate `mailbox_processor`
[INFO] [stdout]   |
[INFO] [stdout] help: there is a crate or module with a similar name
[INFO] [stdout]   |
[INFO] [stdout] 4 | use mailbox_processor_rs::callback::*;
[INFO] [stdout]   |                      +++
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `mailbox_processor`
[INFO] [stdout]  --> src/callback.rs:35:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use mailbox_processor::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^ use of unresolved module or unlinked crate `mailbox_processor`
[INFO] [stdout]   |
[INFO] [stdout] help: there is a crate or module with a similar name
[INFO] [stdout]   |
[INFO] [stdout] 3 | use mailbox_processor_rs::*;
[INFO] [stdout]   |                      +++
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0433.
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/plain.rs - plain::PlainMailboxProcessor (line 28) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `mailbox_processor`
[INFO] [stdout]  --> src/plain.rs:30:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use mailbox_processor::plain::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^ use of unresolved module or unlinked crate `mailbox_processor`
[INFO] [stdout]   |
[INFO] [stdout] help: there is a crate or module with a similar name
[INFO] [stdout]   |
[INFO] [stdout] 4 | use mailbox_processor_rs::plain::*;
[INFO] [stdout]   |                      +++
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `mailbox_processor`
[INFO] [stdout]  --> src/plain.rs:29:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use mailbox_processor::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^ use of unresolved module or unlinked crate `mailbox_processor`
[INFO] [stdout]   |
[INFO] [stdout] help: there is a crate or module with a similar name
[INFO] [stdout]   |
[INFO] [stdout] 3 | use mailbox_processor_rs::*;
[INFO] [stdout]   |                      +++
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0433.
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/callback.rs - callback::CallbackMailboxProcessor (line 34)
[INFO] [stdout]     src/plain.rs - plain::PlainMailboxProcessor (line 28)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.12s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "f22af92f3b56da0db3022de05c7dbe3683d6038192694a173dcbf64d90f26416", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f22af92f3b56da0db3022de05c7dbe3683d6038192694a173dcbf64d90f26416", kill_on_drop: false }`
[INFO] [stdout] f22af92f3b56da0db3022de05c7dbe3683d6038192694a173dcbf64d90f26416