[INFO] fetching crate spongedown 0.5.0-alpha.1...
[INFO] checking spongedown-0.5.0-alpha.1 against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] extracting crate spongedown 0.5.0-alpha.1 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate spongedown 0.5.0-alpha.1 on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate spongedown 0.5.0-alpha.1
[INFO] finished tweaking crates.io crate spongedown 0.5.0-alpha.1
[INFO] tweaked toml for crates.io crate spongedown 0.5.0-alpha.1 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate crates.io crate spongedown 0.5.0-alpha.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "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-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 081a289590c51cbdd9f8bce68026ab2ebe19c1a485ef9e06b7f7b5af54065bc8
[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" "081a289590c51cbdd9f8bce68026ab2ebe19c1a485ef9e06b7f7b5af54065bc8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "081a289590c51cbdd9f8bce68026ab2ebe19c1a485ef9e06b7f7b5af54065bc8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "081a289590c51cbdd9f8bce68026ab2ebe19c1a485ef9e06b7f7b5af54065bc8", kill_on_drop: false }`
[INFO] [stdout] 081a289590c51cbdd9f8bce68026ab2ebe19c1a485ef9e06b7f7b5af54065bc8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] 0440b1b4335bbfa569e37be0453c53f1037809df959f933cde53317e5a184bd8
[INFO] running `Command { std: "docker" "start" "-a" "0440b1b4335bbfa569e37be0453c53f1037809df959f933cde53317e5a184bd8", kill_on_drop: false }`
[INFO] [stderr]    Compiling libm v0.2.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.10
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]     Checking safemem v0.3.3
[INFO] [stderr]     Checking smallvec v1.4.0
[INFO] [stderr]     Checking ordermap v0.3.5
[INFO] [stderr]     Checking fixedbitset v0.1.9
[INFO] [stderr]     Checking bit-vec v0.5.1
[INFO] [stderr]     Checking ucd-trie v0.1.3
[INFO] [stderr]     Checking unchecked-index v0.2.2
[INFO] [stderr]     Checking xml-rs v0.8.2
[INFO] [stderr]     Checking entities v1.0.1
[INFO] [stderr]     Checking pom v3.1.0
[INFO] [stderr]     Checking unicode_categories v0.1.1
[INFO] [stderr]     Checking percent-encoding v1.0.1
[INFO] [stderr]     Checking file v1.1.2
[INFO] [stderr]     Checking url_path v0.1.3
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]     Checking matrixmultiply v0.2.3
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]     Checking line-wrap v0.1.1
[INFO] [stderr]     Checking pest v2.1.3
[INFO] [stderr]     Checking bit-set v0.5.1
[INFO] [stderr]     Checking unicode-normalization v0.1.12
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]    Compiling pest_meta v2.1.3
[INFO] [stderr]     Checking petgraph v0.4.13
[INFO] [stderr]     Checking twoway v0.2.1
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]     Checking bincode v1.2.1
[INFO] [stderr]     Checking mt-dom v0.5.2
[INFO] [stderr]     Checking smallvec v0.6.13
[INFO] [stderr]     Checking flate2 v1.0.14
[INFO] [stderr]     Checking serde_json v1.0.51
[INFO] [stderr]     Checking regex v1.3.7
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking bstr v0.2.12
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]     Checking fancy-regex v0.3.3
[INFO] [stderr]    Compiling syn v1.0.18
[INFO] [stderr]     Checking csv v1.1.3
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]     Checking generic-array v0.12.3
[INFO] [stderr]     Checking num-integer v0.1.42
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking chrono v0.4.11
[INFO] [stderr]     Checking alga v0.9.3
[INFO] [stderr]     Checking nalgebra v0.18.1
[INFO] [stderr]     Checking plist v0.5.5
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]    Compiling thiserror-impl v1.0.15
[INFO] [stderr]    Compiling serde_derive v1.0.106
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]     Checking thiserror v1.0.15
[INFO] [stderr]     Checking sauron-core v0.32.0
[INFO] [stderr]     Checking comrak v0.8.2
[INFO] [stderr]     Checking sauron v0.32.0
[INFO] [stderr]     Checking syntect v4.1.1
[INFO] [stderr]     Checking ncollide2d v0.19.2
[INFO] [stderr]     Checking svgbob v0.5.0-alpha.8
[INFO] [stderr]     Checking spongedown v0.5.0-alpha.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> examples/simple.rs:97:5
[INFO] [stdout]    |
[INFO] [stdout] 97 |     fs::create_dir_all("out");
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> examples/simple.rs:98:5
[INFO] [stdout]    |
[INFO] [stdout] 98 |     fs::write("out/simple.html", &html.content);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> examples/sponge_with_dir.rs:83:5
[INFO] [stdout]    |
[INFO] [stdout] 83 |     fs::create_dir_all("out");
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> examples/sponge_with_dir.rs:84:5
[INFO] [stdout]    |
[INFO] [stdout] 84 |     fs::write("out/sponge.html", &html.content);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 25s
[INFO] running `Command { std: "docker" "inspect" "0440b1b4335bbfa569e37be0453c53f1037809df959f933cde53317e5a184bd8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0440b1b4335bbfa569e37be0453c53f1037809df959f933cde53317e5a184bd8", kill_on_drop: false }`
[INFO] [stdout] 0440b1b4335bbfa569e37be0453c53f1037809df959f933cde53317e5a184bd8