[INFO] fetching crate rhtml2md 0.0.1...
[INFO] checking rhtml2md-0.0.1 against master#00bfd6b2734d9c28a147bf237490995731781fdd for pr-117984
[INFO] extracting crate rhtml2md 0.0.1 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate rhtml2md 0.0.1 on toolchain 00bfd6b2734d9c28a147bf237490995731781fdd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+00bfd6b2734d9c28a147bf237490995731781fdd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rhtml2md 0.0.1
[INFO] finished tweaking crates.io crate rhtml2md 0.0.1
[INFO] tweaked toml for crates.io crate rhtml2md 0.0.1 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate crates.io crate rhtml2md 0.0.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+00bfd6b2734d9c28a147bf237490995731781fdd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded xml5ever v0.16.2
[INFO] [stderr]   Downloaded markup5ever_rcdom v0.1.0
[INFO] [stderr]   Downloaded unindent v0.1.8
[INFO] [stderr]   Downloaded spectral v0.6.0
[INFO] [stderr]   Downloaded indoc v1.0.4
[INFO] [stderr]   Downloaded combine v4.6.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+00bfd6b2734d9c28a147bf237490995731781fdd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 701c6b206c25a035f571b2b3543066135f8c5d9fea9c72202bf65725c2fee99d
[INFO] running `Command { std: "docker" "start" "-a" "701c6b206c25a035f571b2b3543066135f8c5d9fea9c72202bf65725c2fee99d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "701c6b206c25a035f571b2b3543066135f8c5d9fea9c72202bf65725c2fee99d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "701c6b206c25a035f571b2b3543066135f8c5d9fea9c72202bf65725c2fee99d", kill_on_drop: false }`
[INFO] [stdout] 701c6b206c25a035f571b2b3543066135f8c5d9fea9c72202bf65725c2fee99d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+00bfd6b2734d9c28a147bf237490995731781fdd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4988f2458036daec49d9c599eb379af58d16c69ef796e7c7f5ed5f0adc8d48a7
[INFO] running `Command { std: "docker" "start" "-a" "4988f2458036daec49d9c599eb379af58d16c69ef796e7c7f5ed5f0adc8d48a7", kill_on_drop: false }`
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling siphasher v0.3.9
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]     Checking new_debug_unreachable v1.0.4
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]     Checking smallvec v1.8.0
[INFO] [stderr]     Checking mac v0.1.1
[INFO] [stderr]    Compiling libc v0.2.119
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking instant v0.1.12
[INFO] [stderr]     Checking lock_api v0.4.6
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking futf v0.1.5
[INFO] [stderr]     Checking precomputed-hash v0.1.1
[INFO] [stderr]    Compiling phf_shared v0.8.0
[INFO] [stderr]     Checking utf-8 v0.7.6
[INFO] [stderr]     Checking phf_shared v0.10.0
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking tendril v0.4.2
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking phf v0.8.0
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]    Compiling unindent v0.1.8
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking diff v0.1.12
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]    Compiling indoc v1.0.4
[INFO] [stderr]     Checking pretty_assertions v0.7.2
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]     Checking num-complex v0.1.43
[INFO] [stderr]     Checking num-bigint v0.1.44
[INFO] [stderr]     Checking regex v1.5.4
[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 markup5ever v0.10.1
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking spectral v0.6.0
[INFO] [stderr]     Checking string_cache v0.8.3
[INFO] [stderr]     Checking xml5ever v0.16.2
[INFO] [stderr]    Compiling html5ever v0.25.1
[INFO] [stderr]     Checking markup5ever_rcdom v0.1.0
[INFO] [stderr]     Checking rhtml2md v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: call to `.borrow()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/lib.rs:193:19
[INFO] [stdout]     |
[INFO] [stdout] 193 |         walk(child.borrow(), result, custom);
[INFO] [stdout]     |                   ^^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `Rc<Node>` does not implement `Borrow`, so calling `borrow` on `&Rc<Node>` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.borrow()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/lib.rs:193:19
[INFO] [stdout]     |
[INFO] [stdout] 193 |         walk(child.borrow(), result, custom);
[INFO] [stdout]     |                   ^^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `Rc<Node>` does not implement `Borrow`, so calling `borrow` on `&Rc<Node>` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.05s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: html5ever v0.25.1, rustc-serialize v0.3.24, xml5ever v0.16.2
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 4`
[INFO] running `Command { std: "docker" "inspect" "4988f2458036daec49d9c599eb379af58d16c69ef796e7c7f5ed5f0adc8d48a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4988f2458036daec49d9c599eb379af58d16c69ef796e7c7f5ed5f0adc8d48a7", kill_on_drop: false }`
[INFO] [stdout] 4988f2458036daec49d9c599eb379af58d16c69ef796e7c7f5ed5f0adc8d48a7