[INFO] cloning repository https://github.com/Max-E/servo_library_bug
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Max-E/servo_library_bug" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMax-E%2Fservo_library_bug", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMax-E%2Fservo_library_bug'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2fe63106a437832437c6903531bd3b705d1b9420
[INFO] testing Max-E/servo_library_bug against beta-2020-07-24 for beta-1.46-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMax-E%2Fservo_library_bug" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Max-E/servo_library_bug on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Max-E/servo_library_bug
[INFO] finished tweaking git repo https://github.com/Max-E/servo_library_bug
[INFO] tweaked toml for git repo https://github.com/Max-E/servo_library_bug written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/Max-E/servo_library_bug already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded servo-websocket v0.20.1
[INFO] [stderr]   Downloaded ws v0.6.1
[INFO] [stderr]   Downloaded ipc-channel v0.9.1
[INFO] [stderr]   Downloaded mozjs v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", 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] 4668c08ff3a870c52a6cac238d404726b8a55298fe5da4f4cf632f98a0963a68
[INFO] running `Command { std: "docker" "start" "-a" "4668c08ff3a870c52a6cac238d404726b8a55298fe5da4f4cf632f98a0963a68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4668c08ff3a870c52a6cac238d404726b8a55298fe5da4f4cf632f98a0963a68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4668c08ff3a870c52a6cac238d404726b8a55298fe5da4f4cf632f98a0963a68", kill_on_drop: false }`
[INFO] [stdout] 4668c08ff3a870c52a6cac238d404726b8a55298fe5da4f4cf632f98a0963a68
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ec690c20bfed577dc74fad00c503a90fb7f858dc13e18b4e185d839445cd721f
[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" "ec690c20bfed577dc74fad00c503a90fb7f858dc13e18b4e185d839445cd721f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.39
[INFO] [stderr]    Compiling cc v1.0.8
[INFO] [stderr]    Compiling cfg-if v0.1.2
[INFO] [stderr]    Compiling pkg-config v0.3.9
[INFO] [stderr]    Compiling version_check v0.1.3
[INFO] [stderr]    Compiling num-traits v0.2.1
[INFO] [stderr]    Compiling siphasher v0.2.2
[INFO] [stderr]    Compiling byteorder v1.2.1
[INFO] [stderr]    Compiling bitflags v1.0.1
[INFO] [stderr]    Compiling matches v0.1.6
[INFO] [stderr]    Compiling nodrop v0.1.12
[INFO] [stderr]    Compiling string_cache_shared v0.3.0
[INFO] [stderr]    Compiling unicode-normalization v0.1.5
[INFO] [stderr]    Compiling dtoa v0.4.2
[INFO] [stderr]    Compiling itoa v0.3.4
[INFO] [stderr]    Compiling lazycell v0.6.0
[INFO] [stderr]    Compiling smallvec v0.6.0
[INFO] [stderr]    Compiling slab v0.4.0
[INFO] [stderr]    Compiling precomputed-hash v0.1.1
[INFO] [stderr]    Compiling mac v0.1.1
[INFO] [stderr]    Compiling utf-8 v0.7.2
[INFO] [stderr]    Compiling stable_deref_trait v1.0.0
[INFO] [stderr]    Compiling mozjs_sys v0.50.1
[INFO] [stderr]    Compiling procedural-masquerade v0.1.5
[INFO] [stderr]    Compiling smallbitvec v1.0.7
[INFO] [stderr]    Compiling khronos_api v2.1.0
[INFO] [stderr]    Compiling httparse v1.2.4
[INFO] [stderr]    Compiling safemem v0.2.0
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling lazy_static v0.2.11
[INFO] [stderr]    Compiling xdg v2.1.0
[INFO] [stderr]    Compiling getopts v0.2.17
[INFO] [stderr]    Compiling either v1.4.0
[INFO] [stderr]    Compiling regex v0.2.10
[INFO] [stderr]    Compiling ucd-util v0.1.1
[INFO] [stderr]    Compiling signpost v0.1.0 (https://github.com/pcwalton/signpost.git#7ed71250)
[INFO] [stderr]    Compiling ident_case v1.0.0
[INFO] [stderr]    Compiling same-file v0.1.3
[INFO] [stderr]    Compiling atomic_refcell v0.1.1
[INFO] [stderr]    Compiling unicode-segmentation v1.2.0
[INFO] [stderr]    Compiling gcc v0.3.54
[INFO] [stderr]    Compiling foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling openssl v0.9.24
[INFO] [stderr]    Compiling rustc-demangle v0.1.7
[INFO] [stderr]    Compiling binary-space-partition v0.1.2
[INFO] [stderr]    Compiling webrender v0.57.0 (https://github.com/servo/webrender#0cf34e0b)
[INFO] [stderr]    Compiling bitflags v0.9.1
[INFO] [stderr]    Compiling alloc-no-stdlib v1.2.0
[INFO] [stderr]    Compiling thread_profiler v0.1.3
[INFO] [stderr]    Compiling bitreader v0.3.1
[INFO] [stderr]    Compiling mp3-metadata v0.3.0
[INFO] [stderr]    Compiling antidote v1.0.0
[INFO] [stderr]    Compiling slab v0.3.0
[INFO] [stderr]    Compiling sha1 v0.2.0
[INFO] [stderr]    Compiling hex v0.3.1
[INFO] [stderr]    Compiling mitochondria v1.1.2
[INFO] [stderr]    Compiling script_plugins v0.0.1 (https://github.com/servo/servo?rev=2f8fa32#2f8fa32e)
[INFO] [stderr]    Compiling swapper v0.1.0
[INFO] [stderr]    Compiling ref_filter_map v1.0.1
[INFO] [stdout] error[E0462]: found staticlib `rustc` instead of rlib or dylib
[INFO] [stdout]   --> /opt/rustwide/cargo-home/git/checkouts/servo-12bfca331f128de3/2f8fa32/components/script_plugins/lib.rs:26:1
[INFO] [stdout]    |
[INFO] [stdout] 26 | extern crate rustc;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: please recompile that crate using --crate-type lib
[INFO] [stdout]    = note: the following crate versions were found:
[INFO] [stdout]            crate `rustc`: /opt/rustwide/rustup-home/toolchains/beta-2020-07-24-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc-beta_rt.tsan.a
[INFO] [stdout]            crate `rustc`: /opt/rustwide/rustup-home/toolchains/beta-2020-07-24-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc-beta_rt.lsan.a
[INFO] [stdout]            crate `rustc`: /opt/rustwide/rustup-home/toolchains/beta-2020-07-24-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc-beta_rt.msan.a
[INFO] [stdout]            crate `rustc`: /opt/rustwide/rustup-home/toolchains/beta-2020-07-24-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc-beta_rt.asan.a
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `script_plugins`.
[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" "ec690c20bfed577dc74fad00c503a90fb7f858dc13e18b4e185d839445cd721f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec690c20bfed577dc74fad00c503a90fb7f858dc13e18b4e185d839445cd721f", kill_on_drop: false }`
[INFO] [stdout] ec690c20bfed577dc74fad00c503a90fb7f858dc13e18b4e185d839445cd721f