[INFO] fetching crate gwd-backend-firefox 0.1.5...
[INFO] testing gwd-backend-firefox-0.1.5 against beta-2021-08-01 for beta-1.55-1
[INFO] extracting crate gwd-backend-firefox 0.1.5 into /workspace/builds/worker-108/source
[INFO] validating manifest of crates.io crate gwd-backend-firefox 0.1.5 on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate gwd-backend-firefox 0.1.5
[INFO] finished tweaking crates.io crate gwd-backend-firefox 0.1.5
[INFO] tweaked toml for crates.io crate gwd-backend-firefox 0.1.5 written to /workspace/builds/worker-108/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded lz4-sys v1.9.2
[INFO] [stderr]   Downloaded lz4 v1.23.2
[INFO] [stderr]   Downloaded getter-derive-rs v1.0.2
[INFO] [stderr]   Downloaded godwit-daemon v0.1.10
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a850dfb7200f7a1e305ad80107f32bdd73248f021313b7db069d13c5970dce61
[INFO] running `Command { std: "docker" "start" "-a" "a850dfb7200f7a1e305ad80107f32bdd73248f021313b7db069d13c5970dce61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a850dfb7200f7a1e305ad80107f32bdd73248f021313b7db069d13c5970dce61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a850dfb7200f7a1e305ad80107f32bdd73248f021313b7db069d13c5970dce61", kill_on_drop: false }`
[INFO] [stdout] a850dfb7200f7a1e305ad80107f32bdd73248f021313b7db069d13c5970dce61
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2c07a0ca3166cee1295e845cea665e486e005c40f765ab73a9f07f1cf34c1cfb
[INFO] running `Command { std: "docker" "start" "-a" "2c07a0ca3166cee1295e845cea665e486e005c40f765ab73a9f07f1cf34c1cfb", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling futures-channel v0.3.16
[INFO] [stderr]    Compiling toml v0.2.1
[INFO] [stderr]    Compiling error-chain v0.10.0
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling zmq v0.9.2
[INFO] [stderr]    Compiling custom_error v1.9.2
[INFO] [stderr]    Compiling futures-util v0.3.16
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling lz4-sys v1.9.2
[INFO] [stderr]    Compiling libloading v0.6.7
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling dirs-sys v0.3.6
[INFO] [stderr]    Compiling filetime v0.2.14
[INFO] [stderr]    Compiling xattr v0.2.2
[INFO] [stderr]    Compiling time v0.1.43
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling mio v0.6.23
[INFO] [stderr]    Compiling tracing v0.1.26
[INFO] [stderr]    Compiling threadpool v1.8.1
[INFO] [stderr]    Compiling flate2 v1.0.20
[INFO] [stderr]    Compiling serde_derive v1.0.127
[INFO] [stderr]    Compiling native-tls v0.2.7
[INFO] [stderr]    Compiling getter-derive-rs v1.0.2
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling dirs v2.0.2
[INFO] [stderr]    Compiling tar v0.4.35
[INFO] [stderr]    Compiling metadeps v1.1.2
[INFO] [stderr]    Compiling tracing-futures v0.2.5
[INFO] [stderr]    Compiling term v0.6.1
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling tokio v0.2.25
[INFO] [stderr]    Compiling zmq-sys v0.11.0
[INFO] [stderr]    Compiling tempfile v3.2.0
[INFO] [stderr]    Compiling simplelog v0.7.6
[INFO] [stderr]    Compiling structopt-derive v0.4.15
[INFO] [stderr]    Compiling tokio-util v0.3.1
[INFO] [stderr]    Compiling tokio-tls v0.3.1
[INFO] [stderr]    Compiling h2 v0.2.7
[INFO] [stderr]    Compiling structopt v0.3.22
[INFO] [stderr]    Compiling serde v1.0.127
[INFO] [stderr]    Compiling serde_urlencoded v0.7.0
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling serde_json v1.0.66
[INFO] [stderr]    Compiling hyper v0.13.10
[INFO] [stderr]    Compiling lz4 v1.23.2
[INFO] [stderr]    Compiling hyper-tls v0.4.3
[INFO] [stderr]    Compiling reqwest v0.10.10
[INFO] [stderr]    Compiling godwit-daemon v0.1.10
[INFO] [stderr]    Compiling gwd-backend-firefox v0.1.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `extern` fn uses type `dyn Registrar`, which is not FFI-safe
[INFO] [stdout]   --> src/lib.rs:66:35
[INFO] [stdout]    |
[INFO] [stdout] 66 | extern "C" fn register(registrar: &mut dyn Registrar) {
[INFO] [stdout]    |                                   ^^^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(improper_ctypes_definitions)]` on by default
[INFO] [stdout]    = note: trait objects have no C equivalent
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 33.03s
[INFO] running `Command { std: "docker" "inspect" "2c07a0ca3166cee1295e845cea665e486e005c40f765ab73a9f07f1cf34c1cfb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c07a0ca3166cee1295e845cea665e486e005c40f765ab73a9f07f1cf34c1cfb", kill_on_drop: false }`
[INFO] [stdout] 2c07a0ca3166cee1295e845cea665e486e005c40f765ab73a9f07f1cf34c1cfb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1f778d229a8b3149acbc4e24f541f8ccf2ac532adb572b03ca82e1316eb188bb
[INFO] running `Command { std: "docker" "start" "-a" "1f778d229a8b3149acbc4e24f541f8ccf2ac532adb572b03ca82e1316eb188bb", kill_on_drop: false }`
[INFO] [stderr]    Compiling gwd-backend-firefox v0.1.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `extern` fn uses type `dyn Registrar`, which is not FFI-safe
[INFO] [stdout]   --> src/lib.rs:66:35
[INFO] [stdout]    |
[INFO] [stdout] 66 | extern "C" fn register(registrar: &mut dyn Registrar) {
[INFO] [stdout]    |                                   ^^^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(improper_ctypes_definitions)]` on by default
[INFO] [stdout]    = note: trait objects have no C equivalent
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `dyn Registrar`, which is not FFI-safe
[INFO] [stdout]   --> src/lib.rs:66:35
[INFO] [stdout]    |
[INFO] [stdout] 66 | extern "C" fn register(registrar: &mut dyn Registrar) {
[INFO] [stdout]    |                                   ^^^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(improper_ctypes_definitions)]` on by default
[INFO] [stdout]    = note: trait objects have no C equivalent
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.50s
[INFO] running `Command { std: "docker" "inspect" "1f778d229a8b3149acbc4e24f541f8ccf2ac532adb572b03ca82e1316eb188bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f778d229a8b3149acbc4e24f541f8ccf2ac532adb572b03ca82e1316eb188bb", kill_on_drop: false }`
[INFO] [stdout] 1f778d229a8b3149acbc4e24f541f8ccf2ac532adb572b03ca82e1316eb188bb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c8609f5aa90d14dc7cf44265fb11472a4614887ff7cee17ed9d69dcdd5f7c519
[INFO] running `Command { std: "docker" "start" "-a" "c8609f5aa90d14dc7cf44265fb11472a4614887ff7cee17ed9d69dcdd5f7c519", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: `extern` fn uses type `dyn Registrar`, which is not FFI-safe
[INFO] [stderr]   --> src/lib.rs:66:35
[INFO] [stderr]    |
[INFO] [stderr] 66 | extern "C" fn register(registrar: &mut dyn Registrar) {
[INFO] [stderr]    |                                   ^^^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(improper_ctypes_definitions)]` on by default
[INFO] [stderr]    = note: trait objects have no C equivalent
[INFO] [stderr] 
[INFO] [stderr] warning: `gwd-backend-firefox` (lib) generated 1 warning
[INFO] [stderr] warning: `gwd-backend-firefox` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.52s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/gwd_backend_firefox-bedba0452b24b218)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests gwd-backend-firefox
[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" "c8609f5aa90d14dc7cf44265fb11472a4614887ff7cee17ed9d69dcdd5f7c519", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c8609f5aa90d14dc7cf44265fb11472a4614887ff7cee17ed9d69dcdd5f7c519", kill_on_drop: false }`
[INFO] [stdout] c8609f5aa90d14dc7cf44265fb11472a4614887ff7cee17ed9d69dcdd5f7c519
