[INFO] fetching crate spongedown 0.5.0-alpha.1...
[INFO] checking spongedown-0.5.0-alpha.1 against beta for pr-78714
[INFO] extracting crate spongedown 0.5.0-alpha.1 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate spongedown 0.5.0-alpha.1 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", 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-3/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" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded thiserror v1.0.15
[INFO] [stderr]   Downloaded file v1.1.2
[INFO] [stderr]   Downloaded thiserror-impl v1.0.15
[INFO] [stderr]   Downloaded url_path v0.1.3
[INFO] [stderr]   Downloaded pom v3.1.0
[INFO] [stderr]   Downloaded line-wrap v0.1.1
[INFO] [stderr]   Downloaded ncollide2d v0.19.2
[INFO] [stderr]   Downloaded syntect v4.1.1
[INFO] [stderr]   Downloaded xml-rs v0.8.2
[INFO] [stderr]   Downloaded mt-dom v0.5.2
[INFO] [stderr]   Downloaded sauron v0.32.0
[INFO] [stderr]   Downloaded sauron-core v0.32.0
[INFO] [stderr]   Downloaded plist v0.5.5
[INFO] [stderr]   Downloaded svgbob v0.5.0-alpha.8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 670a8b30abdc8c361cf976791ca251babf2cab38df36f84511a4b8aabeb9ae40
[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" "670a8b30abdc8c361cf976791ca251babf2cab38df36f84511a4b8aabeb9ae40", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "670a8b30abdc8c361cf976791ca251babf2cab38df36f84511a4b8aabeb9ae40", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "670a8b30abdc8c361cf976791ca251babf2cab38df36f84511a4b8aabeb9ae40", kill_on_drop: false }`
[INFO] [stdout] 670a8b30abdc8c361cf976791ca251babf2cab38df36f84511a4b8aabeb9ae40
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 725699cbb7685acb6a01a5e62c2094cb99d2251c6c0010286d671f45ba3f960a
[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" "725699cbb7685acb6a01a5e62c2094cb99d2251c6c0010286d671f45ba3f960a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.10
[INFO] [stderr]    Compiling libm v0.2.1
[INFO] [stderr]    Compiling syn v1.0.18
[INFO] [stderr]    Compiling serde v1.0.106
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]     Checking bit-vec v0.5.1
[INFO] [stderr]     Checking xml-rs v0.8.2
[INFO] [stderr]     Checking downcast-rs v1.1.1
[INFO] [stderr]     Checking unchecked-index v0.2.2
[INFO] [stderr]     Checking typed-arena v1.7.0
[INFO] [stderr]     Checking pom v3.1.0
[INFO] [stderr]     Checking shell-words v1.0.0
[INFO] [stderr]     Checking unicode_categories v0.1.1
[INFO] [stderr]     Checking entities v1.0.1
[INFO] [stderr]     Checking xdg v2.2.0
[INFO] [stderr]     Checking lazycell v1.2.1
[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]    Compiling rand v0.6.5
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]     Checking line-wrap v0.1.1
[INFO] [stderr]     Checking bit-set v0.5.1
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking twoway v0.2.1
[INFO] [stderr]     Checking mt-dom v0.5.2
[INFO] [stderr]     Checking regex v1.3.7
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking flate2 v1.0.14
[INFO] [stderr]     Checking fancy-regex v0.3.3
[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]    Compiling pest_generator v2.1.3
[INFO] [stderr]    Compiling thiserror-impl v1.0.15
[INFO] [stderr]    Compiling serde_derive v1.0.106
[INFO] [stderr]     Checking serde_json v1.0.51
[INFO] [stderr]     Checking plist v0.5.5
[INFO] [stderr]     Checking bstr v0.2.12
[INFO] [stderr]     Checking bincode v1.2.1
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]     Checking csv v1.1.3
[INFO] [stderr]     Checking comrak v0.8.2
[INFO] [stderr]     Checking thiserror v1.0.15
[INFO] [stderr]     Checking sauron-core v0.32.0
[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 `std::result::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 `std::result::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 `std::result::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 `std::result::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 56.05s
[INFO] running `Command { std: "docker" "inspect" "725699cbb7685acb6a01a5e62c2094cb99d2251c6c0010286d671f45ba3f960a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "725699cbb7685acb6a01a5e62c2094cb99d2251c6c0010286d671f45ba3f960a", kill_on_drop: false }`
[INFO] [stdout] 725699cbb7685acb6a01a5e62c2094cb99d2251c6c0010286d671f45ba3f960a