[INFO] fetching crate comrak 0.10.1...
[INFO] checking comrak-0.10.1 against master#90442458ac46b1d5eed752c316da25450f67285b for pr-81477
[INFO] extracting crate comrak 0.10.1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate comrak 0.10.1 on toolchain 90442458ac46b1d5eed752c316da25450f67285b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate comrak 0.10.1
[INFO] finished tweaking crates.io crate comrak 0.10.1
[INFO] tweaked toml for crates.io crate comrak 0.10.1 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate comrak 0.10.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "fetch" "--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 pulse v0.5.3
[INFO] [stderr]   Downloaded timebomb v0.1.2
[INFO] [stderr]   Downloaded propfuzz v0.0.1
[INFO] [stderr]   Downloaded propfuzz-macro v0.0.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "metadata" "--no-deps" "--format-version=1", 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] 8fa5265e4c4a0c9187f98b604ed83316ba2b101e8d6e71fea27420324771c907
[INFO] running `Command { std: "docker" "start" "-a" "8fa5265e4c4a0c9187f98b604ed83316ba2b101e8d6e71fea27420324771c907", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8fa5265e4c4a0c9187f98b604ed83316ba2b101e8d6e71fea27420324771c907", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8fa5265e4c4a0c9187f98b604ed83316ba2b101e8d6e71fea27420324771c907", kill_on_drop: false }`
[INFO] [stdout] 8fa5265e4c4a0c9187f98b604ed83316ba2b101e8d6e71fea27420324771c907
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6a67a824e5837a78fd04a57eb2de80e1993ba8258aae4b373b91493362b1aeec
[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" "6a67a824e5837a78fd04a57eb2de80e1993ba8258aae4b373b91493362b1aeec", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling syn v1.0.54
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking regex-syntax v0.6.21
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling const_fn v0.4.4
[INFO] [stderr]     Checking unchecked-index v0.2.2
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stderr]     Checking shell-words v1.0.0
[INFO] [stderr]     Checking atom v0.3.6
[INFO] [stderr]     Checking entities v1.0.1
[INFO] [stderr]     Checking unicode_categories v0.1.1
[INFO] [stderr]     Checking typed-arena v1.7.0
[INFO] [stderr]     Checking xdg v2.2.0
[INFO] [stderr]    Compiling standback v0.2.13
[INFO] [stderr]    Compiling time v0.2.23
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking twoway v0.2.1
[INFO] [stderr]     Checking bit-set v0.5.2
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking getrandom v0.2.2
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking pulse v0.5.3
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand_xorshift v0.2.0
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]     Checking rusty-fork v0.3.0
[INFO] [stderr]     Checking proptest v0.10.1
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]    Compiling time-macros-impl v0.1.1
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]    Compiling propfuzz-macro v0.0.1
[INFO] [stderr]     Checking time-macros v0.1.1
[INFO] [stderr]     Checking comrak v0.10.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking propfuzz v0.0.1
[INFO] [stderr]     Checking timebomb v0.1.2
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 41.61s
[INFO] running `Command { std: "docker" "inspect" "6a67a824e5837a78fd04a57eb2de80e1993ba8258aae4b373b91493362b1aeec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a67a824e5837a78fd04a57eb2de80e1993ba8258aae4b373b91493362b1aeec", kill_on_drop: false }`
[INFO] [stdout] 6a67a824e5837a78fd04a57eb2de80e1993ba8258aae4b373b91493362b1aeec