[INFO] fetching crate webscreenshot 0.2.2...
[INFO] testing webscreenshot-0.2.2 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate webscreenshot 0.2.2 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate webscreenshot 0.2.2 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate webscreenshot 0.2.2
[INFO] finished tweaking crates.io crate webscreenshot 0.2.2
[INFO] tweaked toml for crates.io crate webscreenshot 0.2.2 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate crates.io crate webscreenshot 0.2.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b67b47ce0bb1bf8101e8c518ae2066514553d8d143c6a6586522690ecf86f11f
[INFO] running `Command { std: "docker" "start" "-a" "b67b47ce0bb1bf8101e8c518ae2066514553d8d143c6a6586522690ecf86f11f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b67b47ce0bb1bf8101e8c518ae2066514553d8d143c6a6586522690ecf86f11f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b67b47ce0bb1bf8101e8c518ae2066514553d8d143c6a6586522690ecf86f11f", kill_on_drop: false }`
[INFO] [stdout] b67b47ce0bb1bf8101e8c518ae2066514553d8d143c6a6586522690ecf86f11f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1b093c651a5050a6bc2dac27bc6b50127382679807e987c8263041603ac39ed7
[INFO] running `Command { std: "docker" "start" "-a" "1b093c651a5050a6bc2dac27bc6b50127382679807e987c8263041603ac39ed7", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.30
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling smallvec v1.4.0
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling strsim v0.7.0
[INFO] [stderr]    Compiling gimli v0.21.0
[INFO] [stderr]    Compiling safemem v0.3.3
[INFO] [stderr]    Compiling percent-encoding v1.0.1
[INFO] [stderr]    Compiling serde v1.0.111
[INFO] [stderr]    Compiling object v0.19.0
[INFO] [stderr]    Compiling traitobject v0.1.0
[INFO] [stderr]    Compiling typeable v0.1.2
[INFO] [stderr]    Compiling derive_builder v0.7.2
[INFO] [stderr]    Compiling regex-syntax v0.6.18
[INFO] [stderr]    Compiling remove_dir_all v0.5.2
[INFO] [stderr]    Compiling itoa v0.4.5
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling time v0.1.43
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling base64 v0.10.1
[INFO] [stderr]    Compiling base64 v0.9.3
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling mime v0.2.6
[INFO] [stderr]    Compiling unicode-normalization v0.1.12
[INFO] [stderr]    Compiling quote v1.0.6
[INFO] [stderr]    Compiling unicase v1.4.2
[INFO] [stderr]    Compiling idna v0.1.5
[INFO] [stderr]    Compiling url v1.7.2
[INFO] [stderr]    Compiling regex v1.3.9
[INFO] [stderr]    Compiling hyper v0.10.16
[INFO] [stderr]    Compiling addr2line v0.12.1
[INFO] [stderr]    Compiling backtrace v0.3.48
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling env_logger v0.6.2
[INFO] [stderr]    Compiling websocket v0.23.0
[INFO] [stderr]    Compiling serde_derive v1.0.111
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling darling_core v0.9.0
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling which v2.0.1
[INFO] [stderr]    Compiling darling_macro v0.9.0
[INFO] [stderr]    Compiling darling v0.9.0
[INFO] [stderr]    Compiling derive_builder_core v0.5.0
[INFO] [stderr]    Compiling serde_json v1.0.53
[INFO] [stderr]    Compiling headless_chrome v0.9.0
[INFO] [stderr]    Compiling webscreenshot v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 41.57s
[INFO] running `Command { std: "docker" "inspect" "1b093c651a5050a6bc2dac27bc6b50127382679807e987c8263041603ac39ed7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b093c651a5050a6bc2dac27bc6b50127382679807e987c8263041603ac39ed7", kill_on_drop: false }`
[INFO] [stdout] 1b093c651a5050a6bc2dac27bc6b50127382679807e987c8263041603ac39ed7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9f1083c75709511fcbd2dd387885254f54af459c3d9b46924e71d52933b274e3
[INFO] running `Command { std: "docker" "start" "-a" "9f1083c75709511fcbd2dd387885254f54af459c3d9b46924e71d52933b274e3", kill_on_drop: false }`
[INFO] [stderr]    Compiling more-asserts v0.2.1
[INFO] [stderr]    Compiling webscreenshot v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.33s
[INFO] running `Command { std: "docker" "inspect" "9f1083c75709511fcbd2dd387885254f54af459c3d9b46924e71d52933b274e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f1083c75709511fcbd2dd387885254f54af459c3d9b46924e71d52933b274e3", kill_on_drop: false }`
[INFO] [stdout] 9f1083c75709511fcbd2dd387885254f54af459c3d9b46924e71d52933b274e3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c65045cdd3cefd715afec9ab7a9af5287f3cd64f620019eb11e92b30b38ee37d
[INFO] running `Command { std: "docker" "start" "-a" "c65045cdd3cefd715afec9ab7a9af5287f3cd64f620019eb11e92b30b38ee37d", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/webscreenshotlib-689eba6b84062ae3)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests webscreenshotlib
[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 1 test
[INFO] [stdout] test src/lib.rs - screenshot_tab (line 18) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.49s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c65045cdd3cefd715afec9ab7a9af5287f3cd64f620019eb11e92b30b38ee37d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c65045cdd3cefd715afec9ab7a9af5287f3cd64f620019eb11e92b30b38ee37d", kill_on_drop: false }`
[INFO] [stdout] c65045cdd3cefd715afec9ab7a9af5287f3cd64f620019eb11e92b30b38ee37d