[INFO] fetching crate once_self_cell 0.6.3...
[INFO] testing once_self_cell-0.6.3 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate once_self_cell 0.6.3 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate once_self_cell 0.6.3
[INFO] finished tweaking crates.io crate once_self_cell 0.6.3
[INFO] tweaked toml for crates.io crate once_self_cell 0.6.3 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate once_self_cell 0.6.3 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 29 packages to latest compatible versions
[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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 0f9ee3ab5857c9f13363ef4010c7b2f5960041b8849772f572d8e8d617683945
[INFO] running `Command { std: "docker" "start" "-a" "0f9ee3ab5857c9f13363ef4010c7b2f5960041b8849772f572d8e8d617683945", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0f9ee3ab5857c9f13363ef4010c7b2f5960041b8849772f572d8e8d617683945", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f9ee3ab5857c9f13363ef4010c7b2f5960041b8849772f572d8e8d617683945", kill_on_drop: false }`
[INFO] [stdout] 0f9ee3ab5857c9f13363ef4010c7b2f5960041b8849772f572d8e8d617683945
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 3804d1779b72cb32a7f97eafe75599089f6f077e6041dcef30df46bf9739d357
[INFO] running `Command { std: "docker" "start" "-a" "3804d1779b72cb32a7f97eafe75599089f6f077e6041dcef30df46bf9739d357", kill_on_drop: false }`
[INFO] [stderr]    Compiling once_cell v1.21.4
[INFO] [stderr]    Compiling once_self_cell v0.6.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.29s
[INFO] running `Command { std: "docker" "inspect" "3804d1779b72cb32a7f97eafe75599089f6f077e6041dcef30df46bf9739d357", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3804d1779b72cb32a7f97eafe75599089f6f077e6041dcef30df46bf9739d357", kill_on_drop: false }`
[INFO] [stdout] 3804d1779b72cb32a7f97eafe75599089f6f077e6041dcef30df46bf9739d357
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 60f7c59ec984a41d6395383b2c3186d953b08da7a7ab26630f510ca52af74c01
[INFO] running `Command { std: "docker" "start" "-a" "60f7c59ec984a41d6395383b2c3186d953b08da7a7ab26630f510ca52af74c01", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
[INFO] [stderr]    Compiling quote v1.0.45
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling target-triple v1.0.0
[INFO] [stderr]    Compiling winnow v1.0.2
[INFO] [stderr]    Compiling toml_datetime v1.1.1+spec-1.1.0
[INFO] [stderr]    Compiling serde_spanned v1.1.1
[INFO] [stderr]    Compiling itoa v1.0.18
[INFO] [stderr]    Compiling toml_writer v1.1.1+spec-1.1.0
[INFO] [stderr]    Compiling glob v0.3.3
[INFO] [stderr]    Compiling serde_json v1.0.149
[INFO] [stderr]    Compiling toml_parser v1.1.2+spec-1.1.0
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling toml v1.1.2+spec-1.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling trybuild v1.0.116
[INFO] [stderr]    Compiling once_self_cell v0.6.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 11.95s
[INFO] running `Command { std: "docker" "inspect" "60f7c59ec984a41d6395383b2c3186d953b08da7a7ab26630f510ca52af74c01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60f7c59ec984a41d6395383b2c3186d953b08da7a7ab26630f510ca52af74c01", kill_on_drop: false }`
[INFO] [stdout] 60f7c59ec984a41d6395383b2c3186d953b08da7a7ab26630f510ca52af74c01
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] d841610959a14f2371a0d7387df68526f2a1c707cd22b023b345419b3b49a582
[INFO] running `Command { std: "docker" "start" "-a" "d841610959a14f2371a0d7387df68526f2a1c707cd22b023b345419b3b49a582", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/once_self_cell-7c149cf327f4ff96)
[INFO] [stderr]    Doc-tests once_self_cell
[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] [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] running `Command { std: "docker" "inspect" "d841610959a14f2371a0d7387df68526f2a1c707cd22b023b345419b3b49a582", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d841610959a14f2371a0d7387df68526f2a1c707cd22b023b345419b3b49a582", kill_on_drop: false }`
[INFO] [stdout] d841610959a14f2371a0d7387df68526f2a1c707cd22b023b345419b3b49a582
