[INFO] fetching crate rsdocs2docset 0.4.1...
[INFO] testing rsdocs2docset-0.4.1 against 1.55.0 for beta-1.56-1
[INFO] extracting crate rsdocs2docset 0.4.1 into /workspace/builds/worker-75/source
[INFO] validating manifest of crates.io crate rsdocs2docset 0.4.1 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rsdocs2docset 0.4.1
[INFO] finished tweaking crates.io crate rsdocs2docset 0.4.1
[INFO] tweaked toml for crates.io crate rsdocs2docset 0.4.1 written to /workspace/builds/worker-75/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/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" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3cb45132bcf305748a9b53f08263ad0284b79c6215fc2807ae1b5339d0aeccfe
[INFO] running `Command { std: "docker" "start" "-a" "3cb45132bcf305748a9b53f08263ad0284b79c6215fc2807ae1b5339d0aeccfe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3cb45132bcf305748a9b53f08263ad0284b79c6215fc2807ae1b5339d0aeccfe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3cb45132bcf305748a9b53f08263ad0284b79c6215fc2807ae1b5339d0aeccfe", kill_on_drop: false }`
[INFO] [stdout] 3cb45132bcf305748a9b53f08263ad0284b79c6215fc2807ae1b5339d0aeccfe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/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" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 97510d4265de354d4189a5c843815821bdd2e9d0c15807dc3e5786110c0497c7
[INFO] running `Command { std: "docker" "start" "-a" "97510d4265de354d4189a5c843815821bdd2e9d0c15807dc3e5786110c0497c7", kill_on_drop: false }`
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling siphasher v0.3.7
[INFO] [stderr]    Compiling siphasher v0.2.3
[INFO] [stderr]    Compiling string_cache_shared v0.3.0
[INFO] [stderr]    Compiling new_debug_unreachable v1.0.4
[INFO] [stderr]    Compiling precomputed-hash v0.1.1
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling mac v0.1.1
[INFO] [stderr]    Compiling utf-8 v0.7.6
[INFO] [stderr]    Compiling serde v0.9.15
[INFO] [stderr]    Compiling lazy_static v0.2.11
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling ucd-util v0.1.8
[INFO] [stderr]    Compiling percent-encoding v1.0.1
[INFO] [stderr]    Compiling utf8-ranges v1.0.4
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling sqlite3-src v0.3.0
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling aho-corasick v0.6.10
[INFO] [stderr]    Compiling idna v0.1.5
[INFO] [stderr]    Compiling unreachable v0.1.1
[INFO] [stderr]    Compiling futf v0.1.4
[INFO] [stderr]    Compiling phf_shared v0.7.24
[INFO] [stderr]    Compiling phf_shared v0.8.0
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling regex-syntax v0.5.6
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling debug_unreachable v0.1.1
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling tendril v0.4.2
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling phf v0.8.0
[INFO] [stderr]    Compiling string_cache v0.8.1
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling sqlite3-sys v0.13.0
[INFO] [stderr]    Compiling url v1.7.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling sqlite v0.26.0
[INFO] [stderr]    Compiling phf_generator v0.8.0
[INFO] [stderr]    Compiling string_cache_codegen v0.5.1
[INFO] [stderr]    Compiling phf_codegen v0.8.0
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling string_cache_codegen v0.4.4
[INFO] [stderr]    Compiling markup5ever v0.10.1
[INFO] [stderr]    Compiling string_cache v0.5.2
[INFO] [stderr]    Compiling html5ever-atoms v0.3.0
[INFO] [stderr]    Compiling html5ever v0.25.1
[INFO] [stderr]    Compiling rsdocs2docset v0.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: could not find `rcdom` in `html5ever`
[INFO] [stdout]  --> src/dom/parser.rs:1:16
[INFO] [stdout]   |
[INFO] [stdout] 1 | use html5ever::rcdom::NodeEnum::{Element, Text};
[INFO] [stdout]   |                ^^^^^ could not find `rcdom` in `html5ever`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `html5ever::rcdom`
[INFO] [stdout]  --> src/dom/mod.rs:1:16
[INFO] [stdout]   |
[INFO] [stdout] 1 | use html5ever::rcdom::Handle;
[INFO] [stdout]   |                ^^^^^ could not find `rcdom` in `html5ever`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `html5ever::rcdom`
[INFO] [stdout]  --> src/dom/parser.rs:2:16
[INFO] [stdout]   |
[INFO] [stdout] 2 | use html5ever::rcdom::{Handle, RcDom};
[INFO] [stdout]   |                ^^^^^ could not find `rcdom` in `html5ever`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `html5ever::rcdom`
[INFO] [stdout]  --> src/dom/manipulator.rs:2:16
[INFO] [stdout]   |
[INFO] [stdout] 2 | use html5ever::rcdom::RcDom;
[INFO] [stdout]   |                ^^^^^ could not find `rcdom` in `html5ever`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0531]: cannot find tuple struct or tuple variant `Element` in this scope
[INFO] [stdout]   --> src/dom/parser.rs:17:16
[INFO] [stdout]    |
[INFO] [stdout] 17 |         if let Element(ref name, _, ref attrs) = e.borrow().node {
[INFO] [stdout]    |                ^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0531]: cannot find tuple struct or tuple variant `Element` in this scope
[INFO] [stdout]    --> src/dom/parser.rs:150:16
[INFO] [stdout]     |
[INFO] [stdout] 150 |         if let Element(_, _, ref attrs) = e.borrow().node {
[INFO] [stdout]     |                ^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0531]: cannot find tuple struct or tuple variant `Text` in this scope
[INFO] [stdout]    --> src/dom/parser.rs:174:13
[INFO] [stdout]     |
[INFO] [stdout] 174 |             Text(ref t) => text_tokens.push(t.to_string()),
[INFO] [stdout]     |             ^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]  --> src/dom/manipulator.rs:8:15
[INFO] [stdout]   |
[INFO] [stdout] 8 |         name: qualname!("", "class"),
[INFO] [stdout]   |               ^^^^^^^^^^^^^^^^^^^^^^ expected struct `html5ever::QualName`, found struct `html5ever_atoms::QualName`
[INFO] [stdout]   |
[INFO] [stdout]   = note: this error originates in the macro `qualname` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/dom/manipulator.rs:14:19
[INFO] [stdout]    |
[INFO] [stdout] 14 |             name: qualname!("", "name"),
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^^^ expected struct `html5ever::QualName`, found struct `html5ever_atoms::QualName`
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `qualname` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `TreeSink`
[INFO] [stdout]  --> src/dom/manipulator.rs:3:43
[INFO] [stdout]   |
[INFO] [stdout] 3 | use html5ever::tree_builder::{NodeOrText, TreeSink};
[INFO] [stdout]   |                                           ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 9 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0308, E0432, E0433, E0531.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rsdocs2docset` due to 10 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "97510d4265de354d4189a5c843815821bdd2e9d0c15807dc3e5786110c0497c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97510d4265de354d4189a5c843815821bdd2e9d0c15807dc3e5786110c0497c7", kill_on_drop: false }`
[INFO] [stdout] 97510d4265de354d4189a5c843815821bdd2e9d0c15807dc3e5786110c0497c7