[INFO] fetching crate extrasafe 0.5.1...
[INFO] testing extrasafe-0.5.1 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate extrasafe 0.5.1 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate extrasafe 0.5.1
[INFO] finished tweaking crates.io crate extrasafe 0.5.1
[INFO] tweaked toml for crates.io crate extrasafe 0.5.1 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate extrasafe 0.5.1 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] crate crates.io crate extrasafe 0.5.1 already has a lockfile, it will not be regenerated
[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] a4ccb1e56e1cf4d8eda19fb1b382c8591b5164c714687f107c1d5daa67aac466
[INFO] running `Command { std: "docker" "start" "-a" "a4ccb1e56e1cf4d8eda19fb1b382c8591b5164c714687f107c1d5daa67aac466", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a4ccb1e56e1cf4d8eda19fb1b382c8591b5164c714687f107c1d5daa67aac466", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a4ccb1e56e1cf4d8eda19fb1b382c8591b5164c714687f107c1d5daa67aac466", kill_on_drop: false }`
[INFO] [stdout] a4ccb1e56e1cf4d8eda19fb1b382c8591b5164c714687f107c1d5daa67aac466
[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] b9b7ba0c085c2973d70cbf7969850a6b37c82a29e63fee0eba75feb073e803dd
[INFO] running `Command { std: "docker" "start" "-a" "b9b7ba0c085c2973d70cbf7969850a6b37c82a29e63fee0eba75feb073e803dd", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling syscalls v0.6.18
[INFO] [stderr]    Compiling seccompiler v0.4.0
[INFO] [stderr]    Compiling extrasafe v0.5.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.95s
[INFO] running `Command { std: "docker" "inspect" "b9b7ba0c085c2973d70cbf7969850a6b37c82a29e63fee0eba75feb073e803dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9b7ba0c085c2973d70cbf7969850a6b37c82a29e63fee0eba75feb073e803dd", kill_on_drop: false }`
[INFO] [stdout] b9b7ba0c085c2973d70cbf7969850a6b37c82a29e63fee0eba75feb073e803dd
[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] 6b7f9bee06a5668c9fc3552316675d65968ef26e8af96dd69b62938123b8fdb2
[INFO] running `Command { std: "docker" "start" "-a" "6b7f9bee06a5668c9fc3552316675d65968ef26e8af96dd69b62938123b8fdb2", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.80
[INFO] [stderr]    Compiling log v0.4.21
[INFO] [stderr]    Compiling autocfg v1.2.0
[INFO] [stderr]    Compiling cc v1.0.94
[INFO] [stderr]    Compiling http v0.2.12
[INFO] [stderr]    Compiling httparse v1.8.0
[INFO] [stderr]    Compiling tracing-core v0.1.32
[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]    Compiling getrandom v0.2.14
[INFO] [stderr]    Compiling mio v0.8.11
[INFO] [stderr]    Compiling socket2 v0.5.6
[INFO] [stderr]    Compiling bitflags v2.5.0
[INFO] [stderr]    Compiling unicode-normalization v0.1.23
[INFO] [stderr]    Compiling unicase v2.7.0
[INFO] [stderr]    Compiling unicode-bidi v0.3.15
[INFO] [stderr]    Compiling openssl v0.10.64
[INFO] [stderr]    Compiling serde v1.0.198
[INFO] [stderr]    Compiling hashbrown v0.14.3
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling ahash v0.7.8
[INFO] [stderr]    Compiling httpdate v1.0.3
[INFO] [stderr]    Compiling thiserror v1.0.58
[INFO] [stderr]    Compiling cpufeatures v0.2.12
[INFO] [stderr]    Compiling native-tls v0.2.11
[INFO] [stderr]    Compiling tokio v1.37.0
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]    Compiling idna v0.5.0
[INFO] [stderr]    Compiling tracing v0.1.40
[INFO] [stderr]    Compiling http-body v0.4.6
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling sha1 v0.10.6
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling futures-util v0.3.30
[INFO] [stderr]    Compiling futures-channel v0.3.30
[INFO] [stderr]    Compiling syn v2.0.59
[INFO] [stderr]    Compiling openssl-probe v0.1.5
[INFO] [stderr]    Compiling base64 v0.21.7
[INFO] [stderr]    Compiling url v2.5.0
[INFO] [stderr]    Compiling ryu v1.0.17
[INFO] [stderr]    Compiling tower-service v0.3.2
[INFO] [stderr]    Compiling http v1.1.0
[INFO] [stderr]    Compiling encoding_rs v0.8.34
[INFO] [stderr]    Compiling mime_guess v2.0.4
[INFO] [stderr]    Compiling libsqlite3-sys v0.23.2
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling indexmap v2.2.6
[INFO] [stderr]    Compiling multer v2.1.0
[INFO] [stderr]    Compiling data-encoding v2.5.0
[INFO] [stderr]    Compiling rustix v0.38.32
[INFO] [stderr]    Compiling memchr v2.7.2
[INFO] [stderr]    Compiling serde_json v1.0.116
[INFO] [stderr]    Compiling openssl-sys v0.9.102
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling headers-core v0.2.0
[INFO] [stderr]    Compiling linux-raw-sys v0.4.13
[INFO] [stderr]    Compiling spin v0.9.8
[INFO] [stderr]    Compiling crossbeam-deque v0.8.5
[INFO] [stderr]    Compiling headers v0.3.9
[INFO] [stderr]    Compiling rustls-pemfile v1.0.4
[INFO] [stderr]    Compiling hashlink v0.7.0
[INFO] [stderr]    Compiling crossbeam-channel v0.5.12
[INFO] [stderr]    Compiling crossbeam-queue v0.3.11
[INFO] [stderr]    Compiling ipnet v2.9.0
[INFO] [stderr]    Compiling sync_wrapper v0.1.2
[INFO] [stderr]    Compiling fallible-streaming-iterator v0.1.9
[INFO] [stderr]    Compiling fastrand v2.0.2
[INFO] [stderr]    Compiling rusqlite v0.26.3
[INFO] [stderr]    Compiling crossbeam v0.8.4
[INFO] [stderr]    Compiling openssl-macros v0.1.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.58
[INFO] [stderr]    Compiling pin-project-internal v1.1.5
[INFO] [stderr]    Compiling tempfile v3.10.1
[INFO] [stderr]    Compiling serde_urlencoded v0.7.1
[INFO] [stderr]    Compiling tungstenite v0.21.0
[INFO] [stderr]    Compiling pin-project v1.1.5
[INFO] [stderr]    Compiling tokio-util v0.7.10
[INFO] [stderr]    Compiling h2 v0.3.26
[INFO] [stderr]    Compiling tokio-tungstenite v0.21.0
[INFO] [stderr]    Compiling tokio-native-tls v0.3.1
[INFO] [stderr]    Compiling hyper v0.14.28
[INFO] [stderr]    Compiling hyper-tls v0.5.0
[INFO] [stderr]    Compiling warp v0.3.7
[INFO] [stderr]    Compiling reqwest v0.11.27
[INFO] [stderr]    Compiling extrasafe v0.5.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0601]: `main` function not found in crate `user_guide_isolate`
[INFO] [stdout]   --> examples/user_guide_isolate.rs:42:2
[INFO] [stdout]    |
[INFO] [stdout] 42 | }
[INFO] [stdout]    |  ^ consider adding a `main` function to `examples/user_guide_isolate.rs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0601`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `extrasafe` (example "user_guide_isolate") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "6b7f9bee06a5668c9fc3552316675d65968ef26e8af96dd69b62938123b8fdb2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b7f9bee06a5668c9fc3552316675d65968ef26e8af96dd69b62938123b8fdb2", kill_on_drop: false }`
[INFO] [stdout] 6b7f9bee06a5668c9fc3552316675d65968ef26e8af96dd69b62938123b8fdb2