[INFO] fetching crate webdriver_client 0.2.5...
[INFO] checking webdriver_client-0.2.5 against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] extracting crate webdriver_client 0.2.5 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate webdriver_client 0.2.5 on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate webdriver_client 0.2.5
[INFO] finished tweaking crates.io crate webdriver_client 0.2.5
[INFO] tweaked toml for crates.io crate webdriver_client 0.2.5 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate webdriver_client 0.2.5 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a52e41fcb67ba141b1b30e88b81a19ee1e2654ebf8e1efc0976c8f11d651fe2b
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "a52e41fcb67ba141b1b30e88b81a19ee1e2654ebf8e1efc0976c8f11d651fe2b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a52e41fcb67ba141b1b30e88b81a19ee1e2654ebf8e1efc0976c8f11d651fe2b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a52e41fcb67ba141b1b30e88b81a19ee1e2654ebf8e1efc0976c8f11d651fe2b", kill_on_drop: false }`
[INFO] [stdout] a52e41fcb67ba141b1b30e88b81a19ee1e2654ebf8e1efc0976c8f11d651fe2b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "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" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c342c2d4160df5d7533d6161a76eaf4595c2472cf1baba909e57c90566b458b8
[INFO] running `Command { std: "docker" "start" "-a" "c342c2d4160df5d7533d6161a76eaf4595c2472cf1baba909e57c90566b458b8", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking log v0.3.8
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling memchr v2.3.0
[INFO] [stderr]    Compiling httparse v1.3.4
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]     Checking safemem v0.3.3
[INFO] [stderr]     Checking percent-encoding v1.0.1
[INFO] [stderr]     Checking bitflags v0.4.0
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking typeable v0.1.2
[INFO] [stderr]     Checking ucd-util v0.1.7
[INFO] [stderr]     Checking traitobject v0.1.0
[INFO] [stderr]     Checking language-tags v0.2.2
[INFO] [stderr]     Checking encode_unicode v0.1.3
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]     Checking base64 v0.12.0
[INFO] [stderr]     Checking utf8-ranges v1.0.4
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]     Checking unicode-normalization v0.1.12
[INFO] [stderr]     Checking regex-syntax v0.5.6
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.8
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]     Checking mime v0.2.6
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking nix v0.5.1
[INFO] [stderr]     Checking base64 v0.9.3
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]    Compiling unicase v1.4.2
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]     Checking serde_json v1.0.45
[INFO] [stderr]     Checking aho-corasick v0.6.10
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]    Compiling syn v1.0.14
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]    Compiling derive_builder_core v0.2.0
[INFO] [stderr]    Compiling derive_builder v0.5.1
[INFO] [stderr]     Checking rustyline v1.0.0
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]     Checking chrono v0.4.10
[INFO] [stderr]     Checking regex v0.2.11
[INFO] [stderr]     Checking hyper v0.10.16
[INFO] [stderr]     Checking stderrlog v0.2.4
[INFO] [stderr]     Checking env_logger v0.4.3
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]     Checking webdriver_client v0.2.5 (/opt/rustwide/workdir)
[INFO] [stdout] error: unnecessary trailing semicolon
[INFO] [stdout]    --> src/messages.rs:166:33
[INFO] [stdout]     |
[INFO] [stdout] 166 |         enum Field { Reference };
[INFO] [stdout]     |                                 ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:1:9
[INFO] [stdout]     |
[INFO] [stdout] 1   | #![deny(warnings)]
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     = note: `#[deny(redundant_semicolons)]` implied by `#[deny(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unnecessary trailing semicolon
[INFO] [stdout]    --> src/messages.rs:166:33
[INFO] [stdout]     |
[INFO] [stdout] 166 |         enum Field { Reference };
[INFO] [stdout]     |                                 ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:1:9
[INFO] [stdout]     |
[INFO] [stdout] 1   | #![deny(warnings)]
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     = note: `#[deny(redundant_semicolons)]` implied by `#[deny(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `webdriver_client`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "c342c2d4160df5d7533d6161a76eaf4595c2472cf1baba909e57c90566b458b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c342c2d4160df5d7533d6161a76eaf4595c2472cf1baba909e57c90566b458b8", kill_on_drop: false }`
[INFO] [stdout] c342c2d4160df5d7533d6161a76eaf4595c2472cf1baba909e57c90566b458b8