[INFO] fetching crate polodb_core 0.9.0...
[INFO] checking polodb_core-0.9.0 against master#9503ea19edbf01b9435e80e17d60ce1b88390116 for pr-81782
[INFO] extracting crate polodb_core 0.9.0 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate polodb_core 0.9.0 on toolchain 9503ea19edbf01b9435e80e17d60ce1b88390116
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9503ea19edbf01b9435e80e17d60ce1b88390116" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate polodb_core 0.9.0
[INFO] finished tweaking crates.io crate polodb_core 0.9.0
[INFO] tweaked toml for crates.io crate polodb_core 0.9.0 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9503ea19edbf01b9435e80e17d60ce1b88390116" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9503ea19edbf01b9435e80e17d60ce1b88390116" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9503ea19edbf01b9435e80e17d60ce1b88390116" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c9a8cd219020a41cc6580f2624c9981919c99ede7024a888aca14dfb73e49454
[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" "c9a8cd219020a41cc6580f2624c9981919c99ede7024a888aca14dfb73e49454", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c9a8cd219020a41cc6580f2624c9981919c99ede7024a888aca14dfb73e49454", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c9a8cd219020a41cc6580f2624c9981919c99ede7024a888aca14dfb73e49454", kill_on_drop: false }`
[INFO] [stdout] c9a8cd219020a41cc6580f2624c9981919c99ede7024a888aca14dfb73e49454
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9503ea19edbf01b9435e80e17d60ce1b88390116" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a0bdd2ecde3a2535524882370755f284a964b14440599d308daf83162460da81
[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" "a0bdd2ecde3a2535524882370755f284a964b14440599d308daf83162460da81", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]     Checking crc64fast v1.0.0
[INFO] [stderr]     Checking polodb_bson v0.9.0
[INFO] [stderr]     Checking polodb_core v0.9.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `polodb_line_diff`
[INFO] [stdout]    --> vm/subprogram.rs:305:9
[INFO] [stdout]     |
[INFO] [stdout] 305 |     use polodb_line_diff::assert_eq;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^ use of undeclared crate or module `polodb_line_diff`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_eq`
[INFO] [stdout]    --> vm/subprogram.rs:334:9
[INFO] [stdout]     |
[INFO] [stdout] 334 |         assert_eq!(expect, actual);
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_eq`
[INFO] [stdout]    --> vm/subprogram.rs:392:9
[INFO] [stdout]     |
[INFO] [stdout] 392 |         assert_eq!(expect, actual)
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_eq`
[INFO] [stdout]    --> vm/subprogram.rs:429:9
[INFO] [stdout]     |
[INFO] [stdout] 429 |         assert_eq!(expect, actual)
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_eq`
[INFO] [stdout]    --> vm/subprogram.rs:493:9
[INFO] [stdout]     |
[INFO] [stdout] 493 |         assert_eq!(expect, actual)
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_eq`
[INFO] [stdout]    --> vm/subprogram.rs:567:9
[INFO] [stdout]     |
[INFO] [stdout] 567 |         assert_eq!(expect, actual);
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_eq`
[INFO] [stdout]    --> vm/subprogram.rs:628:9
[INFO] [stdout]     |
[INFO] [stdout] 628 |         assert_eq!(expect, actual);
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `assert_eq`
[INFO] [stdout]    --> vm/subprogram.rs:734:9
[INFO] [stdout]     |
[INFO] [stdout] 734 |         assert_eq!(expect, actual);
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 8 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `polodb_core`
[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] [stdout] warning: field is never read: `current`
[INFO] [stdout]   --> cursor.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 31 |     current:            Option<Rc<Document>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "a0bdd2ecde3a2535524882370755f284a964b14440599d308daf83162460da81", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a0bdd2ecde3a2535524882370755f284a964b14440599d308daf83162460da81", kill_on_drop: false }`
[INFO] [stdout] a0bdd2ecde3a2535524882370755f284a964b14440599d308daf83162460da81