[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] checking Max-E/servo_library_bug against master#836c31742687ba4e2f857b5b698e1e9e6b67619c for pr-81789
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMax-E%2Fservo_library_bug" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Max-E/servo_library_bug on toolchain 836c31742687ba4e2f857b5b698e1e9e6b67619c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-6/source/rust-toolchain
[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-6/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" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "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-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f4bfa6e17aade2454dfebad4b25c6eb5e1bdafdeaedbf9ebf9a223922230364a
[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" "f4bfa6e17aade2454dfebad4b25c6eb5e1bdafdeaedbf9ebf9a223922230364a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f4bfa6e17aade2454dfebad4b25c6eb5e1bdafdeaedbf9ebf9a223922230364a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4bfa6e17aade2454dfebad4b25c6eb5e1bdafdeaedbf9ebf9a223922230364a", kill_on_drop: false }`
[INFO] [stdout] f4bfa6e17aade2454dfebad4b25c6eb5e1bdafdeaedbf9ebf9a223922230364a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 60f4d13451114ada757f2095e1c10d66d6e34534cabbb519ce55c9a84de9625a
[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" "60f4d13451114ada757f2095e1c10d66d6e34534cabbb519ce55c9a84de9625a", kill_on_drop: false }`
[INFO] [stderr]    Compiling pkg-config v0.3.9
[INFO] [stderr]     Checking cfg-if v0.1.2
[INFO] [stderr]    Compiling version_check v0.1.3
[INFO] [stderr]     Checking lazy_static v1.0.0
[INFO] [stderr]    Compiling siphasher v0.2.2
[INFO] [stderr]     Checking num-traits v0.2.1
[INFO] [stderr]     Checking matches v0.1.6
[INFO] [stderr]    Compiling string_cache_shared v0.3.0
[INFO] [stderr]     Checking unicode-normalization v0.1.5
[INFO] [stderr]    Compiling itoa v0.3.4
[INFO] [stderr]    Compiling dtoa v0.4.2
[INFO] [stderr]     Checking smallvec v0.6.0
[INFO] [stderr]     Checking bitflags v1.0.1
[INFO] [stderr]     Checking precomputed-hash v0.1.1
[INFO] [stderr]     Checking mac v0.1.1
[INFO] [stderr]    Compiling mozjs_sys v0.50.1
[INFO] [stderr]     Checking utf-8 v0.7.2
[INFO] [stderr]     Checking stable_deref_trait v1.0.0
[INFO] [stderr]    Compiling procedural-masquerade v0.1.5
[INFO] [stderr]     Checking smallbitvec v1.0.7
[INFO] [stderr]    Compiling khronos_api v2.1.0
[INFO] [stderr]     Checking httparse v1.2.4
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking safemem v0.2.0
[INFO] [stderr]     Checking language-tags v0.2.2
[INFO] [stderr]     Checking lazy_static v0.2.11
[INFO] [stderr]     Checking traitobject v0.1.0
[INFO] [stderr]     Checking typeable v0.1.2
[INFO] [stderr]    Compiling rayon-core v1.4.0
[INFO] [stderr]    Compiling regex v0.2.10
[INFO] [stderr]     Checking getopts v0.2.17
[INFO] [stderr]     Checking xdg v2.1.0
[INFO] [stderr]     Checking either v1.4.0
[INFO] [stderr]     Checking ucd-util v0.1.1
[INFO] [stderr]     Checking utf8-ranges v1.0.0
[INFO] [stderr]     Checking color_quant v1.0.0
[INFO] [stderr]     Checking signpost v0.1.0 (https://github.com/pcwalton/signpost.git#7ed71250)
[INFO] [stderr]    Compiling same-file v0.1.3
[INFO] [stderr]    Compiling ident_case v1.0.0
[INFO] [stderr]     Checking atomic_refcell v0.1.1
[INFO] [stderr]    Compiling gcc v0.3.54
[INFO] [stderr]     Checking unicode-segmentation v1.2.0
[INFO] [stderr]     Checking foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling openssl v0.9.24
[INFO] [stderr]     Checking bitflags v0.9.1
[INFO] [stderr]    Compiling webrender v0.57.0 (https://github.com/servo/webrender#0cf34e0b)
[INFO] [stderr]     Checking rustc-demangle v0.1.7
[INFO] [stderr]     Checking binary-space-partition v0.1.2
[INFO] [stderr]     Checking bitreader v0.3.1
[INFO] [stderr]     Checking alloc-no-stdlib v1.2.0
[INFO] [stderr]     Checking thread_profiler v0.1.3
[INFO] [stderr]     Checking mp3-metadata v0.3.0
[INFO] [stderr]     Checking antidote v1.0.0
[INFO] [stderr]     Checking hex v0.3.1
[INFO] [stderr]     Checking sha1 v0.2.0
[INFO] [stderr]     Checking mitochondria v1.1.2
[INFO] [stderr]     Checking ref_slice v1.1.1
[INFO] [stderr]    Compiling dom_struct v0.0.1 (https://github.com/servo/servo?rev=2f8fa32#2f8fa32e)
[INFO] [stderr]     Checking swapper v0.1.0
[INFO] [stderr]    Compiling script_plugins v0.0.1 (https://github.com/servo/servo?rev=2f8fa32#2f8fa32e)
[INFO] [stderr]     Checking ref_filter_map v1.0.1
[INFO] [stderr]     Checking half v1.0.2
[INFO] [stderr]     Checking time v0.1.39
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking num_cpus v1.8.0
[INFO] [stderr]     Checking hashglobe v0.1.0 (https://github.com/servo/servo?rev=2f8fa32#2f8fa32e)
[INFO] [stderr]     Checking memchr v2.0.1
[INFO] [stdout] error[E0658]: use of unstable library feature 'proc_macro_quote'
[INFO] [stdout]   --> /opt/rustwide/cargo-home/git/checkouts/servo-12bfca331f128de3/2f8fa32/components/dom_struct/lib.rs:17:22
[INFO] [stdout]    |
[INFO] [stdout] 17 |     let attributes = quote! {
[INFO] [stdout]    |                      ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #54722 <https://github.com/rust-lang/rust/issues/54722> for more information
[INFO] [stdout]    = help: add `#![feature(proc_macro_quote)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'proc_macro_quote'
[INFO] [stdout]  --> /opt/rustwide/cargo-home/git/checkouts/servo-12bfca331f128de3/2f8fa32/components/dom_struct/lib.rs:9:31
[INFO] [stdout]   |
[INFO] [stdout] 9 | use proc_macro::{TokenStream, quote};
[INFO] [stdout]   |                               ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #54722 <https://github.com/rust-lang/rust/issues/54722> for more information
[INFO] [stdout]   = help: add `#![feature(proc_macro_quote)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0658`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `dom_struct`
[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] [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/836c31742687ba4e2f857b5b698e1e9e6b67619c/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc-nightly_rt.lsan.a
[INFO] [stdout]            crate `rustc`: /opt/rustwide/rustup-home/toolchains/836c31742687ba4e2f857b5b698e1e9e6b67619c/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc-nightly_rt.msan.a
[INFO] [stdout]            crate `rustc`: /opt/rustwide/rustup-home/toolchains/836c31742687ba4e2f857b5b698e1e9e6b67619c/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc-nightly_rt.tsan.a
[INFO] [stdout]            crate `rustc`: /opt/rustwide/rustup-home/toolchains/836c31742687ba4e2f857b5b698e1e9e6b67619c/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc-nightly_rt.asan.a
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "60f4d13451114ada757f2095e1c10d66d6e34534cabbb519ce55c9a84de9625a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60f4d13451114ada757f2095e1c10d66d6e34534cabbb519ce55c9a84de9625a", kill_on_drop: false }`
[INFO] [stdout] 60f4d13451114ada757f2095e1c10d66d6e34534cabbb519ce55c9a84de9625a