[INFO] fetching crate html5ever_macros 0.2.7...
[INFO] testing html5ever_macros-0.2.7 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate html5ever_macros 0.2.7 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate html5ever_macros 0.2.7 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 html5ever_macros 0.2.7
[INFO] finished tweaking crates.io crate html5ever_macros 0.2.7
[INFO] tweaked toml for crates.io crate html5ever_macros 0.2.7 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "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] 94d3ff947867b9a8da766be27cd6f199ef9fdd9fa71cb7110329a39fbdce5d85
[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" "94d3ff947867b9a8da766be27cd6f199ef9fdd9fa71cb7110329a39fbdce5d85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "94d3ff947867b9a8da766be27cd6f199ef9fdd9fa71cb7110329a39fbdce5d85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94d3ff947867b9a8da766be27cd6f199ef9fdd9fa71cb7110329a39fbdce5d85", kill_on_drop: false }`
[INFO] [stdout] 94d3ff947867b9a8da766be27cd6f199ef9fdd9fa71cb7110329a39fbdce5d85
[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" "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] 22b9d7113027cf951ebd70f9a3f6685be55e4acb1cf3c986859cf9244bb37195
[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" "22b9d7113027cf951ebd70f9a3f6685be55e4acb1cf3c986859cf9244bb37195", kill_on_drop: false }`
[INFO] [stderr]    Compiling mac v0.1.1
[INFO] [stderr]    Compiling html5ever_macros v0.2.7 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]   --> src/lib.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | #![feature(quote, rustc_private)]
[INFO] [stdout]    |            ^^^^^ feature has been removed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0463]: can't find crate for `syntax`
[INFO] [stdout]   --> src/lib.rs:13:1
[INFO] [stdout]    |
[INFO] [stdout] 13 | extern crate syntax;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0463, E0557.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `html5ever_macros` due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "22b9d7113027cf951ebd70f9a3f6685be55e4acb1cf3c986859cf9244bb37195", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22b9d7113027cf951ebd70f9a3f6685be55e4acb1cf3c986859cf9244bb37195", kill_on_drop: false }`
[INFO] [stdout] 22b9d7113027cf951ebd70f9a3f6685be55e4acb1cf3c986859cf9244bb37195