[INFO] cloning repository https://github.com/servo/media
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/servo/media" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fservo%2Fmedia", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fservo%2Fmedia'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b23e72285ecbe352737eafa4100e65763cc9ccfc
[INFO] checking servo/media against master#4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5 for pr-81174
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fservo%2Fmedia" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/servo/media on toolchain 4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-0/source/.cargo/config
[INFO] started tweaking git repo https://github.com/servo/media
[INFO] finished tweaking git repo https://github.com/servo/media
[INFO] tweaked toml for git repo https://github.com/servo/media written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/servo/media already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "fetch" "--locked" "--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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b34d6033de230936770621be27a4e5417996cf7c9897e75fbd614647a5b9c8b4
[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" "b34d6033de230936770621be27a4e5417996cf7c9897e75fbd614647a5b9c8b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b34d6033de230936770621be27a4e5417996cf7c9897e75fbd614647a5b9c8b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b34d6033de230936770621be27a4e5417996cf7c9897e75fbd614647a5b9c8b4", kill_on_drop: false }`
[INFO] [stdout] b34d6033de230936770621be27a4e5417996cf7c9897e75fbd614647a5b9c8b4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 71c9e4bea6d73ab1bf236797bc05bfdf15eec1c78c29bddd405392ec4844b96c
[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" "71c9e4bea6d73ab1bf236797bc05bfdf15eec1c78c29bddd405392ec4844b96c", kill_on_drop: false }`
[INFO] [stderr]    Compiling pkg-config v0.3.12
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]    Compiling proc-macro2 v1.0.0
[INFO] [stderr]    Compiling syn v1.0.11
[INFO] [stderr]     Checking slab v0.4.1
[INFO] [stderr]    Compiling getrandom v0.1.12
[INFO] [stderr]     Checking ppv-lite86 v0.2.5
[INFO] [stderr]     Checking futures-core v0.3.1
[INFO] [stderr]     Checking futures-task v0.3.1
[INFO] [stderr]    Compiling serde v1.0.80
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling num-rational v0.2.1
[INFO] [stderr]     Checking remove_dir_all v0.5.1
[INFO] [stderr]    Compiling gstreamer v0.15.6
[INFO] [stderr]     Checking muldiv v0.2.0
[INFO] [stderr]     Checking servo-media-traits v0.1.0 (/opt/rustwide/workdir/traits)
[INFO] [stderr]    Compiling gstreamer-base v0.15.0
[INFO] [stderr]    Compiling gstreamer-video v0.15.0
[INFO] [stderr]     Checking boxfnonce v0.1.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking fixedbitset v0.1.9
[INFO] [stderr]     Checking ordermap v0.3.5
[INFO] [stderr]     Checking speexdsp-resampler v0.1.0
[INFO] [stderr]     Checking byte-slice-cast v0.2.0
[INFO] [stderr]    Compiling gstreamer-gl v0.15.0
[INFO] [stderr]    Compiling gstreamer-sdp v0.15.0
[INFO] [stderr]     Checking unicode-normalization v0.1.7
[INFO] [stderr]    Compiling gstreamer-webrtc v0.15.0
[INFO] [stderr]    Compiling gstreamer-player v0.15.0
[INFO] [stderr]    Compiling gstreamer-audio v0.15.0
[INFO] [stderr]    Compiling gstreamer-app v0.15.0
[INFO] [stderr]     Checking array-init v0.1.1
[INFO] [stderr]     Checking percent-encoding v2.0.0
[INFO] [stderr]     Checking unicode-xid v0.2.0
[INFO] [stderr]     Checking servo_media_android v0.1.0 (/opt/rustwide/workdir/examples/android/lib)
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking futures-channel v0.3.1
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `CString`
[INFO] [stdout]    --> examples/android/lib/src/lib.rs:117:31
[INFO] [stdout]     |
[INFO] [stdout] 117 |       let backend_id = unsafe { CString::from_raw(servo_media_backend_id()) };
[INFO] [stdout]     |                                 ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: a struct with a similar name exists
[INFO] [stdout]     |
[INFO] [stdout] 117 |     let backend_id = unsafe { String::from_raw(servo_media_backend_id()) };
[INFO] [stdout]     |                               ^^^^^^
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]     |
[INFO] [stdout] 116 | use std::ffi::CString;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `servo_media_backend_id` in this scope
[INFO] [stdout]    --> examples/android/lib/src/lib.rs:117:49
[INFO] [stdout]     |
[INFO] [stdout] 117 |     let backend_id = unsafe { CString::from_raw(servo_media_backend_id()) };
[INFO] [stdout]     |                                                 ^^^^^^^^^^^^^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]    Compiling unicase v2.3.0
[INFO] [stderr]     Checking c2-chacha v0.2.2
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0425, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `servo_media_android`
[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" "71c9e4bea6d73ab1bf236797bc05bfdf15eec1c78c29bddd405392ec4844b96c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71c9e4bea6d73ab1bf236797bc05bfdf15eec1c78c29bddd405392ec4844b96c", kill_on_drop: false }`
[INFO] [stdout] 71c9e4bea6d73ab1bf236797bc05bfdf15eec1c78c29bddd405392ec4844b96c