[INFO] fetching crate teaspoon 0.1.0...
[INFO] testing teaspoon-0.1.0 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate teaspoon 0.1.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate teaspoon 0.1.0
[INFO] finished tweaking crates.io crate teaspoon 0.1.0
[INFO] tweaked toml for crates.io crate teaspoon 0.1.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate teaspoon 0.1.0 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 3 packages to latest compatible versions
[INFO] [stderr]       Adding rand v0.8.6 (available: v0.10.1)
[INFO] [stderr]       Adding spin v0.9.8 (available: v0.10.0)
[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] 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] 2f0802740f8970b073670e83d7080e2f2bbbd5cb8176fee06528e6e6b4c79267
[INFO] running `Command { std: "docker" "start" "-a" "2f0802740f8970b073670e83d7080e2f2bbbd5cb8176fee06528e6e6b4c79267", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2f0802740f8970b073670e83d7080e2f2bbbd5cb8176fee06528e6e6b4c79267", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f0802740f8970b073670e83d7080e2f2bbbd5cb8176fee06528e6e6b4c79267", kill_on_drop: false }`
[INFO] [stdout] 2f0802740f8970b073670e83d7080e2f2bbbd5cb8176fee06528e6e6b4c79267
[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] e7c2f65341b3b029cd8e457a7147a0a4aa0039ef3db249a5be9070b42627f1c2
[INFO] running `Command { std: "docker" "start" "-a" "e7c2f65341b3b029cd8e457a7147a0a4aa0039ef3db249a5be9070b42627f1c2", kill_on_drop: false }`
[INFO] [stderr]    Compiling spin v0.9.8
[INFO] [stderr]    Compiling teaspoon v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.43s
[INFO] running `Command { std: "docker" "inspect" "e7c2f65341b3b029cd8e457a7147a0a4aa0039ef3db249a5be9070b42627f1c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7c2f65341b3b029cd8e457a7147a0a4aa0039ef3db249a5be9070b42627f1c2", kill_on_drop: false }`
[INFO] [stdout] e7c2f65341b3b029cd8e457a7147a0a4aa0039ef3db249a5be9070b42627f1c2
[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" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 64f82a87030d86bfe7ac10e556eaefc0ecda9d9942bab4e3d6f046db1a92f932
[INFO] running `Command { std: "docker" "start" "-a" "64f82a87030d86bfe7ac10e556eaefc0ecda9d9942bab4e3d6f046db1a92f932", kill_on_drop: false }`
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand v0.8.6
[INFO] [stderr]    Compiling teaspoon v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: extern crate `rand` is unused in crate `teaspoon`
[INFO] [stdout]    --> src/lib.rs:4:1
[INFO] [stdout]     |
[INFO] [stdout]   4 | //! Teaspoon: an allocator for when all you have is a teaspoon of memory.
[INFO] [stdout]     | ^
[INFO] [stdout]     |
[INFO] [stdout]     = help: remove the dependency or add `use rand as _;` to the crate root
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:218:9
[INFO] [stdout]     |
[INFO] [stdout] 218 | #![warn(unused_crate_dependencies)]
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.16s
[INFO] running `Command { std: "docker" "inspect" "64f82a87030d86bfe7ac10e556eaefc0ecda9d9942bab4e3d6f046db1a92f932", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "64f82a87030d86bfe7ac10e556eaefc0ecda9d9942bab4e3d6f046db1a92f932", kill_on_drop: false }`
[INFO] [stdout] 64f82a87030d86bfe7ac10e556eaefc0ecda9d9942bab4e3d6f046db1a92f932
[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" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9715603e94007291eaab994a4829be6af64f55612de334de603ea371cbc08f4e
[INFO] running `Command { std: "docker" "start" "-a" "9715603e94007291eaab994a4829be6af64f55612de334de603ea371cbc08f4e", kill_on_drop: false }`
[INFO] [stderr] warning: extern crate `rand` is unused in crate `teaspoon`
[INFO] [stderr]    --> src/lib.rs:4:1
[INFO] [stderr]     |
[INFO] [stderr]   4 | //! Teaspoon: an allocator for when all you have is a teaspoon of memory.
[INFO] [stderr]     | ^
[INFO] [stderr]     |
[INFO] [stderr]     = help: remove the dependency or add `use rand as _;` to the crate root
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]    --> src/lib.rs:218:9
[INFO] [stderr]     |
[INFO] [stderr] 218 | #![warn(unused_crate_dependencies)]
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `teaspoon` (lib test) generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/teaspoon-efe122fd9375a819)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests teaspoon
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test src/lib.rs - (line 148) ... FAILED
[INFO] [stdout] test src/lib.rs - (line 48) - compile ... ok
[INFO] [stdout] test src/lib.rs - Teaspoon<'a,S>::usage (line 448) ... FAILED
[INFO] [stdout] test src/lib.rs - (line 57) ... ok
[INFO] [stdout] test src/lib.rs - (line 103) ... ok
[INFO] [stdout] test src/lib.rs - (line 67) ... ok
[INFO] [stdout] test src/lib.rs - Teaspoon<'a,S>::from_slice (line 302) ... ok
[INFO] [stdout] test src/lib.rs - Teaspoon<'a,S>::from_addr_size (line 419) ... ok
[INFO] [stdout] test src/lib.rs - Teaspoon<'a,S>::from_ptr_size (line 379) ... ok
[INFO] [stdout] test src/lib.rs - Teaspoon<'a,S>::from_ptr (line 341) ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 148) stdout ----
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]    --> src/lib.rs:147:1
[INFO] [stdout]     |
[INFO] [stdout] 147 | #![feature(allocator_api)]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - Teaspoon<'a,S>::usage (line 448) stdout ----
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]    --> src/lib.rs:447:1
[INFO] [stdout]     |
[INFO] [stdout] 447 | #![feature(allocator_api)]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 148)
[INFO] [stdout]     src/lib.rs - Teaspoon<'a,S>::usage (line 448)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 8 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.79s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "9715603e94007291eaab994a4829be6af64f55612de334de603ea371cbc08f4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9715603e94007291eaab994a4829be6af64f55612de334de603ea371cbc08f4e", kill_on_drop: false }`
[INFO] [stdout] 9715603e94007291eaab994a4829be6af64f55612de334de603ea371cbc08f4e
