[INFO] fetching crate rustdoc-seeker 0.6.0...
[INFO] checking rustdoc-seeker-0.6.0 against try#c8bdaa84ec1b37f18f30375e196a65b7602f3790 for pr-73345
[INFO] extracting crate rustdoc-seeker 0.6.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate rustdoc-seeker 0.6.0 on toolchain c8bdaa84ec1b37f18f30375e196a65b7602f3790
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rustdoc-seeker 0.6.0
[INFO] finished tweaking crates.io crate rustdoc-seeker 0.6.0
[INFO] tweaked toml for crates.io crate rustdoc-seeker 0.6.0 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate crates.io crate rustdoc-seeker 0.6.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded fst v0.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:6c9ffe128752d56c8d75334ed354142a5229917ed99767f56566dd8e857ad726" "/opt/rustwide/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ecfce86bf6c93ae7d50841394ef3176734bc50c3f383ba9eb955ac8c88cbcbbb
[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" "ecfce86bf6c93ae7d50841394ef3176734bc50c3f383ba9eb955ac8c88cbcbbb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ecfce86bf6c93ae7d50841394ef3176734bc50c3f383ba9eb955ac8c88cbcbbb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ecfce86bf6c93ae7d50841394ef3176734bc50c3f383ba9eb955ac8c88cbcbbb", kill_on_drop: false }`
[INFO] [stdout] ecfce86bf6c93ae7d50841394ef3176734bc50c3f383ba9eb955ac8c88cbcbbb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:6c9ffe128752d56c8d75334ed354142a5229917ed99767f56566dd8e857ad726" "/opt/rustwide/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f1c942259d4eccfb121dd1ea014451cbff0c0f0f86ab166d16329e1c5dab6cdc
[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" "f1c942259d4eccfb121dd1ea014451cbff0c0f0f86ab166d16329e1c5dab6cdc", kill_on_drop: false }`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling proc-macro2 v1.0.9
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]    Compiling fst v0.4.0
[INFO] [stderr]    Compiling ryu v1.0.3
[INFO] [stderr]     Checking siphasher v0.3.1
[INFO] [stderr]     Checking new_debug_unreachable v1.0.4
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking precomputed-hash v0.1.1
[INFO] [stderr]     Checking regex-syntax v0.6.17
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking phf_shared v0.8.0
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]    Compiling syn v1.0.16
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]     Checking serde_json v1.0.48
[INFO] [stderr]     Checking string_cache v0.8.0
[INFO] [stderr]     Checking rustdoc-seeker v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 35.75s
[INFO] running `Command { std: "docker" "inspect" "f1c942259d4eccfb121dd1ea014451cbff0c0f0f86ab166d16329e1c5dab6cdc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1c942259d4eccfb121dd1ea014451cbff0c0f0f86ab166d16329e1c5dab6cdc", kill_on_drop: false }`
[INFO] [stdout] f1c942259d4eccfb121dd1ea014451cbff0c0f0f86ab166d16329e1c5dab6cdc