[INFO] fetching crate forest_db 0.1.0...
[INFO] testing forest_db-0.1.0 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate forest_db 0.1.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate forest_db 0.1.0 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate forest_db 0.1.0
[INFO] finished tweaking crates.io crate forest_db 0.1.0
[INFO] tweaked toml for crates.io crate forest_db 0.1.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded sled v0.34.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "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] d28d787733631b50c8cd6955df1f7fc83022c3aa70ef82289c3d79821cc58a6c
[INFO] running `Command { std: "docker" "start" "-a" "d28d787733631b50c8cd6955df1f7fc83022c3aa70ef82289c3d79821cc58a6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d28d787733631b50c8cd6955df1f7fc83022c3aa70ef82289c3d79821cc58a6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d28d787733631b50c8cd6955df1f7fc83022c3aa70ef82289c3d79821cc58a6c", kill_on_drop: false }`
[INFO] [stdout] d28d787733631b50c8cd6955df1f7fc83022c3aa70ef82289c3d79821cc58a6c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 051526f0ebac40de1076d2bd4d58b5c6a8be0f49300f1c66908cddec859bb54c
[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" "051526f0ebac40de1076d2bd4d58b5c6a8be0f49300f1c66908cddec859bb54c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.57
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]    Compiling data-encoding v2.3.1
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling constant_time_eq v0.1.5
[INFO] [stderr]    Compiling base-x v0.2.8
[INFO] [stderr]    Compiling arrayvec v0.5.2
[INFO] [stderr]    Compiling arrayref v0.3.6
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling unsigned-varint v0.5.1
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling integer-encoding v2.1.1
[INFO] [stderr]    Compiling smallvec v1.6.0
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling half v1.6.0
[INFO] [stderr]    Compiling instant v0.1.9
[INFO] [stderr]    Compiling lock_api v0.4.2
[INFO] [stderr]    Compiling blake2b_simd v0.5.11
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]    Compiling parking_lot_core v0.8.2
[INFO] [stderr]    Compiling parking_lot v0.11.1
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling data-encoding-macro-internal v0.1.9
[INFO] [stderr]    Compiling thiserror-impl v1.0.23
[INFO] [stderr]    Compiling serde_tuple_macros v0.5.0
[INFO] [stderr]    Compiling serde_repr v0.1.6
[INFO] [stderr]    Compiling data-encoding-macro v0.1.10
[INFO] [stderr]    Compiling multibase v0.8.0
[INFO] [stderr]    Compiling multibase v0.9.1
[INFO] [stderr]    Compiling thiserror v1.0.23
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling cs_serde_cbor v0.12.0
[INFO] [stderr]    Compiling cs_serde_bytes v0.12.0
[INFO] [stderr]    Compiling serde_tuple v0.5.0
[INFO] [stderr]    Compiling proc-macro-crate v0.1.5
[INFO] [stderr]    Compiling multihash-derive v0.7.1
[INFO] [stderr]    Compiling multihash v0.13.2
[INFO] [stderr]    Compiling cid v0.6.0
[INFO] [stderr]    Compiling forest_cid v0.3.0
[INFO] [stderr]    Compiling forest_encoding v0.2.1
[INFO] [stderr]    Compiling forest_db v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 29s
[INFO] running `Command { std: "docker" "inspect" "051526f0ebac40de1076d2bd4d58b5c6a8be0f49300f1c66908cddec859bb54c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "051526f0ebac40de1076d2bd4d58b5c6a8be0f49300f1c66908cddec859bb54c", kill_on_drop: false }`
[INFO] [stdout] 051526f0ebac40de1076d2bd4d58b5c6a8be0f49300f1c66908cddec859bb54c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--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] 8e1e2040a8db78a0b23862990bf1cd00566876163f17f1f12f9dcf3e19f2c6d0
[INFO] running `Command { std: "docker" "start" "-a" "8e1e2040a8db78a0b23862990bf1cd00566876163f17f1f12f9dcf3e19f2c6d0", kill_on_drop: false }`
[INFO] [stderr]    Compiling forest_db v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `db`
[INFO] [stdout]  --> tests/subtests/mod.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use db::Store;
[INFO] [stdout]   |     ^^ use of undeclared crate or module `db`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `db`
[INFO] [stdout]  --> tests/mem_test.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use db::MemoryDB;
[INFO] [stdout]   |     ^^ use of undeclared crate or module `db`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `forest_db`
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[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" "8e1e2040a8db78a0b23862990bf1cd00566876163f17f1f12f9dcf3e19f2c6d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e1e2040a8db78a0b23862990bf1cd00566876163f17f1f12f9dcf3e19f2c6d0", kill_on_drop: false }`
[INFO] [stdout] 8e1e2040a8db78a0b23862990bf1cd00566876163f17f1f12f9dcf3e19f2c6d0