[INFO] fetching crate yarte_helpers 0.9.10...
[INFO] checking yarte_helpers-0.9.10 against try#c8bdaa84ec1b37f18f30375e196a65b7602f3790 for pr-73345
[INFO] extracting crate yarte_helpers 0.9.10 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate yarte_helpers 0.9.10 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 yarte_helpers 0.9.10
[INFO] finished tweaking crates.io crate yarte_helpers 0.9.10
[INFO] tweaked toml for crates.io crate yarte_helpers 0.9.10 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "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] 55473741f74a9f7da3b7d4c05a2fd5617fbf68caa92c9edc9e6b84892857924f
[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" "55473741f74a9f7da3b7d4c05a2fd5617fbf68caa92c9edc9e6b84892857924f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "55473741f74a9f7da3b7d4c05a2fd5617fbf68caa92c9edc9e6b84892857924f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "55473741f74a9f7da3b7d4c05a2fd5617fbf68caa92c9edc9e6b84892857924f", kill_on_drop: false }`
[INFO] [stdout] 55473741f74a9f7da3b7d4c05a2fd5617fbf68caa92c9edc9e6b84892857924f
[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" "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] 732fbd46b4734a1beb4b64025c230a624b6e0b7a08d08e5f9bd0b154864dfacc
[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" "732fbd46b4734a1beb4b64025c230a624b6e0b7a08d08e5f9bd0b154864dfacc", kill_on_drop: false }`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling syn v1.0.31
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling v_htmlescape v0.6.1
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]     Checking dtoa v0.4.5
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling serde_derive v1.0.112
[INFO] [stderr]    Compiling v_escape_derive v0.7.1
[INFO] [stderr]     Checking v_escape v0.9.4
[INFO] [stderr]     Checking serde v1.0.112
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Checking serde_json v1.0.55
[INFO] [stderr]     Checking yarte_helpers v0.9.10 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `crate::helpers::display_fn`
[INFO] [stdout]   --> src/helpers/io_fmt.rs:32:25
[INFO] [stdout]    |
[INFO] [stdout] 32 |     use crate::helpers::display_fn::DisplayFn;
[INFO] [stdout]    |                         ^^^^^^^^^^ could not find `display_fn` in `helpers`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `yarte_helpers`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "732fbd46b4734a1beb4b64025c230a624b6e0b7a08d08e5f9bd0b154864dfacc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "732fbd46b4734a1beb4b64025c230a624b6e0b7a08d08e5f9bd0b154864dfacc", kill_on_drop: false }`
[INFO] [stdout] 732fbd46b4734a1beb4b64025c230a624b6e0b7a08d08e5f9bd0b154864dfacc