[INFO] fetching crate uniffi_build 0.25.2...
[INFO] checking uniffi_build-0.25.2 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate uniffi_build 0.25.2 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate uniffi_build 0.25.2 on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate uniffi_build 0.25.2
[INFO] finished tweaking crates.io crate uniffi_build 0.25.2
[INFO] tweaked toml for crates.io crate uniffi_build 0.25.2 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 49 packages
[INFO] [stderr]       Adding cargo_metadata v0.15.4 (latest: v0.18.1)
[INFO] [stderr]       Adding goblin v0.6.1 (latest: v0.8.0)
[INFO] [stderr]       Adding heck v0.4.1 (latest: v0.5.0)
[INFO] [stderr]       Adding scroll v0.11.0 (latest: v0.12.0)
[INFO] [stderr]       Adding scroll_derive v0.11.1 (latest: v0.12.0)
[INFO] [stderr]       Adding siphasher v0.3.11 (latest: v1.0.1)
[INFO] [stderr]       Adding toml v0.5.11 (latest: v0.8.12)
[INFO] [stderr]       Adding uniffi_bindgen v0.25.2 (latest: v0.27.1)
[INFO] [stderr]       Adding uniffi_checksum_derive v0.25.3 (latest: v0.27.1)
[INFO] [stderr]       Adding uniffi_meta v0.25.2 (latest: v0.27.1)
[INFO] [stderr]       Adding uniffi_testing v0.25.2 (latest: v0.27.1)
[INFO] [stderr]       Adding uniffi_udl v0.25.2 (latest: v0.27.1)
[INFO] [stderr]       Adding weedle2 v4.0.0 (latest: v5.0.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded uniffi_testing v0.25.2
[INFO] [stderr]   Downloaded cargo-platform v0.1.8
[INFO] [stderr]   Downloaded camino v1.1.6
[INFO] [stderr]   Downloaded weedle2 v4.0.0
[INFO] [stderr]   Downloaded uniffi_udl v0.25.2
[INFO] [stderr]   Downloaded uniffi_bindgen v0.25.2
[INFO] [stderr]   Downloaded askama_parser v0.2.1
[INFO] [stderr]   Downloaded basic-toml v0.1.9
[INFO] [stderr]   Downloaded askama_derive v0.12.5
[INFO] [stderr]   Downloaded askama_escape v0.10.3
[INFO] [stderr]   Downloaded askama v0.12.1
[INFO] [stderr]   Downloaded scroll_derive v0.11.1
[INFO] [stderr]   Downloaded scroll v0.11.0
[INFO] [stderr]   Downloaded goblin v0.6.1
[INFO] [stderr]   Downloaded uniffi_checksum_derive v0.25.3
[INFO] [stderr]   Downloaded uniffi_meta v0.25.2
[INFO] [stderr]   Downloaded cargo_metadata v0.15.4
[INFO] [stderr]   Downloaded fs-err v2.11.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7336e3855753490634b2165df581276b4b6e86716b6aa388da1893a4cdc2c152
[INFO] running `Command { std: "docker" "start" "-a" "7336e3855753490634b2165df581276b4b6e86716b6aa388da1893a4cdc2c152", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7336e3855753490634b2165df581276b4b6e86716b6aa388da1893a4cdc2c152", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7336e3855753490634b2165df581276b4b6e86716b6aa388da1893a4cdc2c152", kill_on_drop: false }`
[INFO] [stdout] 7336e3855753490634b2165df581276b4b6e86716b6aa388da1893a4cdc2c152
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 273de3b4b076d014f0ee6626767265ffaee8f3475723a9c392167251cac43fe2
[INFO] running `Command { std: "docker" "start" "-a" "273de3b4b076d014f0ee6626767265ffaee8f3475723a9c392167251cac43fe2", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]    Compiling camino v1.1.6
[INFO] [stderr]    Compiling anyhow v1.0.81
[INFO] [stderr]    Compiling serde_json v1.0.115
[INFO] [stderr]    Compiling semver v1.0.22
[INFO] [stderr]    Compiling memchr v2.7.2
[INFO] [stderr]    Compiling minimal-lexical v0.2.1
[INFO] [stderr]    Compiling mime v0.3.17
[INFO] [stderr]    Compiling unicase v2.7.0
[INFO] [stderr]    Compiling fs-err v2.11.0
[INFO] [stderr]    Compiling uniffi_checksum_derive v0.25.3
[INFO] [stderr]    Compiling scroll_derive v0.11.1
[INFO] [stderr]    Compiling paste v1.0.14
[INFO] [stderr]     Checking siphasher v0.3.11
[INFO] [stderr]     Checking plain v0.2.3
[INFO] [stderr]     Checking askama_escape v0.10.3
[INFO] [stderr]     Checking heck v0.4.1
[INFO] [stderr]     Checking glob v0.3.1
[INFO] [stderr]    Compiling mime_guess v2.0.4
[INFO] [stderr]     Checking nom v7.1.3
[INFO] [stderr]     Checking uniffi_meta v0.25.2
[INFO] [stderr]     Checking scroll v0.11.0
[INFO] [stderr]     Checking goblin v0.6.1
[INFO] [stderr]     Checking weedle2 v4.0.0
[INFO] [stderr]    Compiling askama_parser v0.2.1
[INFO] [stderr]     Checking serde v1.0.197
[INFO] [stderr]     Checking cargo-platform v0.1.8
[INFO] [stderr]     Checking toml v0.5.11
[INFO] [stderr]    Compiling basic-toml v0.1.9
[INFO] [stderr]    Compiling askama_derive v0.12.5
[INFO] [stderr]     Checking cargo_metadata v0.15.4
[INFO] [stderr]     Checking uniffi_testing v0.25.2
[INFO] [stderr]     Checking uniffi_udl v0.25.2
[INFO] [stderr]     Checking askama v0.12.1
[INFO] [stderr]     Checking uniffi_bindgen v0.25.2
[INFO] [stderr]     Checking uniffi_build v0.25.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.66s
[INFO] running `Command { std: "docker" "inspect" "273de3b4b076d014f0ee6626767265ffaee8f3475723a9c392167251cac43fe2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "273de3b4b076d014f0ee6626767265ffaee8f3475723a9c392167251cac43fe2", kill_on_drop: false }`
[INFO] [stdout] 273de3b4b076d014f0ee6626767265ffaee8f3475723a9c392167251cac43fe2