[INFO] fetching crate comrak 0.8.0...
[INFO] checking comrak-0.8.0 against try#d990716b6a1fdde1300748828a9c9e79dfd0b898 for pr-74846
[INFO] extracting crate comrak 0.8.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate comrak 0.8.0 on toolchain d990716b6a1fdde1300748828a9c9e79dfd0b898
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate comrak 0.8.0
[INFO] finished tweaking crates.io crate comrak 0.8.0
[INFO] tweaked toml for crates.io crate comrak 0.8.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate comrak 0.8.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded timebomb v0.1.2
[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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0e0485409b50a2a9114562439e3f78f3ad7d3cb47806b88cac0baed9bbe58482
[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" "0e0485409b50a2a9114562439e3f78f3ad7d3cb47806b88cac0baed9bbe58482", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0e0485409b50a2a9114562439e3f78f3ad7d3cb47806b88cac0baed9bbe58482", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e0485409b50a2a9114562439e3f78f3ad7d3cb47806b88cac0baed9bbe58482", kill_on_drop: false }`
[INFO] [stdout] 0e0485409b50a2a9114562439e3f78f3ad7d3cb47806b88cac0baed9bbe58482
[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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 29fb8656bac9c626b0ceaadf38db437278d3f83d148626aed4601a5ca1b5a92c
[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" "29fb8656bac9c626b0ceaadf38db437278d3f83d148626aed4601a5ca1b5a92c", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.33
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking ucd-util v0.1.5
[INFO] [stderr]    Compiling regex v1.0.1
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking typed-arena v1.7.0
[INFO] [stderr]     Checking atom v0.3.5
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking pest v2.1.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]     Checking aho-corasick v0.6.10
[INFO] [stderr]     Checking twoway v0.2.1
[INFO] [stderr]     Checking pulse v0.5.3
[INFO] [stderr]     Checking regex-syntax v0.6.8
[INFO] [stderr]     Checking timebomb v0.1.2
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling pest_meta v2.1.2
[INFO] [stderr]    Compiling pest_generator v2.1.1
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]     Checking comrak v0.8.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/ctype.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 39 |     (CMARK_CTYPE_CLASS[ch as usize] == 3 || CMARK_CTYPE_CLASS[ch as usize] == 4)
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/ctype.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 39 |     (CMARK_CTYPE_CLASS[ch as usize] == 3 || CMARK_CTYPE_CLASS[ch as usize] == 4)
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` 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 30.40s
[INFO] running `Command { std: "docker" "inspect" "29fb8656bac9c626b0ceaadf38db437278d3f83d148626aed4601a5ca1b5a92c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29fb8656bac9c626b0ceaadf38db437278d3f83d148626aed4601a5ca1b5a92c", kill_on_drop: false }`
[INFO] [stdout] 29fb8656bac9c626b0ceaadf38db437278d3f83d148626aed4601a5ca1b5a92c