[INFO] fetching crate mvcc 0.0.1...
[INFO] checking mvcc-0.0.1 against try#ea663bba38739867a4b75ac820991b4f5d093c3b for pr-62262-1
[INFO] extracting crate mvcc 0.0.1 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate mvcc 0.0.1 on toolchain ea663bba38739867a4b75ac820991b4f5d093c3b
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate mvcc 0.0.1
[INFO] finished tweaking crates.io crate mvcc 0.0.1
[INFO] tweaked toml for crates.io crate mvcc 0.0.1 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "/opt/rustwide/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] ca15558779795b34bd9a2b62e1897ea95e2cfb814700ee2ae1eef0283b820b2f
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "ca15558779795b34bd9a2b62e1897ea95e2cfb814700ee2ae1eef0283b820b2f"`
[INFO] [stderr]     Checking pagetable v0.0.3
[INFO] [stderr]     Checking crossbeam-epoch v0.7.2
[INFO] [stderr]     Checking sled_sync v0.2.2
[INFO] [stderr]     Checking historian v3.0.11
[INFO] [stderr]     Checking pagecache v0.6.0
[INFO] [stderr]     Checking sled v0.15.21
[INFO] [stderr]     Checking mvcc v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0432]: unresolved import `sled::DbResult`
[INFO] [stderr]  --> src/db.rs:3:20
[INFO] [stderr]   |
[INFO] [stderr] 3 | use sled::{Config, DbResult, Tree};
[INFO] [stderr]   |                    ^^^^^^^^
[INFO] [stderr]   |                    |
[INFO] [stderr]   |                    no `DbResult` in the root
[INFO] [stderr]   |                    help: a similar name exists in the module: `Result`
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `sled::DbResult`
[INFO] [stderr]  --> src/db.rs:3:20
[INFO] [stderr]   |
[INFO] [stderr] 3 | use sled::{Config, DbResult, Tree};
[INFO] [stderr]   |                    ^^^^^^^^
[INFO] [stderr]   |                    |
[INFO] [stderr]   |                    no `DbResult` in the root
[INFO] [stderr]   |                    help: a similar name exists in the module: `Result`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0432`.
[INFO] [stderr] error: could not compile `mvcc`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0432`.
[INFO] [stderr] error: could not compile `mvcc`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "ca15558779795b34bd9a2b62e1897ea95e2cfb814700ee2ae1eef0283b820b2f"`
[INFO] running `"docker" "rm" "-f" "ca15558779795b34bd9a2b62e1897ea95e2cfb814700ee2ae1eef0283b820b2f"`
[INFO] [stdout] ca15558779795b34bd9a2b62e1897ea95e2cfb814700ee2ae1eef0283b820b2f