[INFO] fetching crate html2md 0.2.10...
[INFO] checking html2md-0.2.10 against beta for pr-78714
[INFO] extracting crate html2md 0.2.10 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate html2md 0.2.10 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 html2md 0.2.10
[INFO] finished tweaking crates.io crate html2md 0.2.10
[INFO] tweaked toml for crates.io crate html2md 0.2.10 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate html2md 0.2.10 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 1e8ef5efa97cad79832f2b812e125feda123bc85326b746a974dd59617b0020f
[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" "1e8ef5efa97cad79832f2b812e125feda123bc85326b746a974dd59617b0020f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1e8ef5efa97cad79832f2b812e125feda123bc85326b746a974dd59617b0020f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e8ef5efa97cad79832f2b812e125feda123bc85326b746a974dd59617b0020f", kill_on_drop: false }`
[INFO] [stdout] 1e8ef5efa97cad79832f2b812e125feda123bc85326b746a974dd59617b0020f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] da50fdcbbdc94d9ace8f989b1fa20d840ecc39788f5eb2faebfd99ef44399991
[INFO] running `Command { std: "docker" "start" "-a" "da50fdcbbdc94d9ace8f989b1fa20d840ecc39788f5eb2faebfd99ef44399991", kill_on_drop: false }`
[INFO] [stderr]    Compiling cfg-if v0.1.6
[INFO] [stderr]    Compiling ppv-lite86 v0.2.6
[INFO] [stderr]    Compiling siphasher v0.3.1
[INFO] [stderr]    Compiling syn v1.0.11
[INFO] [stderr]    Compiling itoa v0.3.4
[INFO] [stderr]    Compiling dtoa v0.4.2
[INFO] [stderr]    Compiling serde v1.0.33
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]     Checking utf-8 v0.7.2
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]    Compiling unindent v0.1.5
[INFO] [stderr]     Checking unreachable v0.1.1
[INFO] [stderr]    Compiling proc-macro2 v0.2.3
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]     Checking debug_unreachable v0.1.1
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]     Checking rand v0.4.2
[INFO] [stderr]     Checking num-complex v0.1.43
[INFO] [stderr]     Checking futf v0.1.3
[INFO] [stderr]     Checking phf_shared v0.8.0
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking tendril v0.4.0
[INFO] [stderr]    Compiling quote v0.4.2
[INFO] [stderr]     Checking phf v0.8.0
[INFO] [stderr]    Compiling c2-chacha v0.2.3
[INFO] [stderr]    Compiling syn v0.12.14
[INFO] [stderr]    Compiling getrandom v0.1.13
[INFO] [stderr]     Checking num-bigint v0.1.44
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.1
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]    Compiling rand v0.7.2
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking spectral v0.6.0
[INFO] [stderr]    Compiling phf_generator v0.8.0
[INFO] [stderr]    Compiling serde_derive_internals v0.21.0
[INFO] [stderr]    Compiling phf_codegen v0.8.0
[INFO] [stderr]    Compiling string_cache_codegen v0.5.1
[INFO] [stderr]    Compiling serde_derive v1.0.33
[INFO] [stderr]     Checking string_cache v0.8.0
[INFO] [stderr]    Compiling serde_json v1.0.11
[INFO] [stderr]    Compiling markup5ever v0.10.0
[INFO] [stderr]    Compiling html5ever v0.25.1
[INFO] [stderr]    Compiling indoc-impl v0.3.6
[INFO] [stderr]     Checking indoc v0.3.6
[INFO] [stderr]     Checking xml5ever v0.16.1
[INFO] [stderr]     Checking markup5ever_rcdom v0.1.0
[INFO] [stderr]     Checking html2md v0.2.10 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 21s
[INFO] running `Command { std: "docker" "inspect" "da50fdcbbdc94d9ace8f989b1fa20d840ecc39788f5eb2faebfd99ef44399991", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da50fdcbbdc94d9ace8f989b1fa20d840ecc39788f5eb2faebfd99ef44399991", kill_on_drop: false }`
[INFO] [stdout] da50fdcbbdc94d9ace8f989b1fa20d840ecc39788f5eb2faebfd99ef44399991