[INFO] cloning repository https://github.com/christiansakai/link_crawler_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/christiansakai/link_crawler_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchristiansakai%2Flink_crawler_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchristiansakai%2Flink_crawler_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3d9f3116d501195a4a407ff76652eb4576a0ce59
[INFO] checking christiansakai/link_crawler_rust against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchristiansakai%2Flink_crawler_rust" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/christiansakai/link_crawler_rust on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/christiansakai/link_crawler_rust
[INFO] finished tweaking git repo https://github.com/christiansakai/link_crawler_rust
[INFO] tweaked toml for git repo https://github.com/christiansakai/link_crawler_rust written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/christiansakai/link_crawler_rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "fetch" "--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-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "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] 7d4fa764ee9723b9db52bd65b8951750b79c5b3965699da14b834b7b77bcbbf1
[INFO] running `Command { std: "docker" "start" "-a" "7d4fa764ee9723b9db52bd65b8951750b79c5b3965699da14b834b7b77bcbbf1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7d4fa764ee9723b9db52bd65b8951750b79c5b3965699da14b834b7b77bcbbf1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d4fa764ee9723b9db52bd65b8951750b79c5b3965699da14b834b7b77bcbbf1", kill_on_drop: false }`
[INFO] [stdout] 7d4fa764ee9723b9db52bd65b8951750b79c5b3965699da14b834b7b77bcbbf1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "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] 414eed666c1673e3b3a020f0a776bbdecb5cc2fd579b7ef9dfe1e48de328ecd4
[INFO] running `Command { std: "docker" "start" "-a" "414eed666c1673e3b3a020f0a776bbdecb5cc2fd579b7ef9dfe1e48de328ecd4", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.75
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]     Checking typeable v0.1.2
[INFO] [stderr]     Checking traitobject v0.1.0
[INFO] [stderr]    Compiling phf_shared v0.7.23
[INFO] [stderr]     Checking log v0.4.4
[INFO] [stderr]     Checking unreachable v0.1.1
[INFO] [stderr]     Checking base64 v0.6.0
[INFO] [stderr]     Checking rand v0.3.22
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]     Checking debug_unreachable v0.1.1
[INFO] [stderr]    Compiling phf_generator v0.7.23
[INFO] [stderr]     Checking phf v0.7.23
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling string_cache_codegen v0.4.1
[INFO] [stderr]    Compiling phf_codegen v0.7.23
[INFO] [stderr]     Checking mime v0.2.6
[INFO] [stderr]     Checking hyper v0.10.13
[INFO] [stderr]    Compiling string_cache v0.6.2
[INFO] [stderr]     Checking uuid v0.1.18
[INFO] [stderr]     Checking url v0.2.38
[INFO] [stderr]    Compiling markup5ever v0.6.2
[INFO] [stderr]    Compiling html5ever v0.21.0
[INFO] [stderr]     Checking link_crawler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.74s
[INFO] running `Command { std: "docker" "inspect" "414eed666c1673e3b3a020f0a776bbdecb5cc2fd579b7ef9dfe1e48de328ecd4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "414eed666c1673e3b3a020f0a776bbdecb5cc2fd579b7ef9dfe1e48de328ecd4", kill_on_drop: false }`
[INFO] [stdout] 414eed666c1673e3b3a020f0a776bbdecb5cc2fd579b7ef9dfe1e48de328ecd4