[INFO] fetching crate markup5ever_arcdom 0.1.1...
[INFO] checking markup5ever_arcdom-0.1.1 against try#b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b for pr-82781
[INFO] extracting crate markup5ever_arcdom 0.1.1 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate markup5ever_arcdom 0.1.1 on toolchain b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate markup5ever_arcdom 0.1.1
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate markup5ever_arcdom 0.1.1
[INFO] tweaked toml for crates.io crate markup5ever_arcdom 0.1.1 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate markup5ever_arcdom 0.1.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "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] ec99e1e6dcc0ba45cd476dac2067ac70168b32f79c4b9470e000ff7295d87491
[INFO] running `Command { std: "docker" "start" "-a" "ec99e1e6dcc0ba45cd476dac2067ac70168b32f79c4b9470e000ff7295d87491", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ec99e1e6dcc0ba45cd476dac2067ac70168b32f79c4b9470e000ff7295d87491", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec99e1e6dcc0ba45cd476dac2067ac70168b32f79c4b9470e000ff7295d87491", kill_on_drop: false }`
[INFO] [stdout] ec99e1e6dcc0ba45cd476dac2067ac70168b32f79c4b9470e000ff7295d87491
[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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "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] 043c0fad2deba7f90fc50319d3cd303893b75c13b96963afb551c2a3bf41a09f
[INFO] running `Command { std: "docker" "start" "-a" "043c0fad2deba7f90fc50319d3cd303893b75c13b96963afb551c2a3bf41a09f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.67
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling ppv-lite86 v0.2.6
[INFO] [stderr]    Compiling syn v1.0.16
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]    Compiling siphasher v0.3.1
[INFO] [stderr]     Checking new_debug_unreachable v1.0.4
[INFO] [stderr]    Compiling itoa v0.4.5
[INFO] [stderr]     Checking mac v0.1.1
[INFO] [stderr]     Checking utf-8 v0.7.5
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking precomputed-hash v0.1.1
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]    Compiling proc-macro2 v1.0.9
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]     Checking futf v0.1.4
[INFO] [stderr]     Checking phf_shared v0.8.0
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking tendril v0.4.1
[INFO] [stderr]     Checking phf v0.8.0
[INFO] [stderr]     Checking string_cache v0.8.0
[INFO] [stderr]    Compiling c2-chacha v0.2.3
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking serde_json v1.0.48
[INFO] [stderr]    Compiling rustc-test v0.3.0
[INFO] [stderr]     Checking time v0.1.42
[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 v0.7.3
[INFO] [stderr]    Compiling phf_generator v0.8.0
[INFO] [stderr]    Compiling string_cache_codegen v0.5.1
[INFO] [stderr]    Compiling phf_codegen v0.8.0
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]    Compiling html5ever v0.25.1
[INFO] [stderr]    Compiling markup5ever v0.10.0
[INFO] [stderr]     Checking xml5ever v0.16.1
[INFO] [stderr]     Checking markup5ever_arcdom v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 17s
[INFO] running `Command { std: "docker" "inspect" "043c0fad2deba7f90fc50319d3cd303893b75c13b96963afb551c2a3bf41a09f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "043c0fad2deba7f90fc50319d3cd303893b75c13b96963afb551c2a3bf41a09f", kill_on_drop: false }`
[INFO] [stdout] 043c0fad2deba7f90fc50319d3cd303893b75c13b96963afb551c2a3bf41a09f