[INFO] updating cached repository scsmithr/oxide_db
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/scsmithr/oxide_db
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/scsmithr/oxide_db" "work/ex/pr-57501/sources/master#6ecad338381cc3b8d56e2df22e5971a598eddd6c/gh/scsmithr/oxide_db"`
[INFO] [stderr] Cloning into 'work/ex/pr-57501/sources/master#6ecad338381cc3b8d56e2df22e5971a598eddd6c/gh/scsmithr/oxide_db'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/scsmithr/oxide_db" "work/ex/pr-57501/sources/try#5f789154f114767b2d0cb9c5b6c592cb3a635e6f/gh/scsmithr/oxide_db"`
[INFO] [stderr] Cloning into 'work/ex/pr-57501/sources/try#5f789154f114767b2d0cb9c5b6c592cb3a635e6f/gh/scsmithr/oxide_db'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 480f0317d1396542a60fc3fea6981f47b96dd333
[INFO] sha for GitHub repo scsmithr/oxide_db: 480f0317d1396542a60fc3fea6981f47b96dd333
[INFO] validating manifest of scsmithr/oxide_db on toolchain master#6ecad338381cc3b8d56e2df22e5971a598eddd6c
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+6ecad338381cc3b8d56e2df22e5971a598eddd6c-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of scsmithr/oxide_db on toolchain try#5f789154f114767b2d0cb9c5b6c592cb3a635e6f
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f789154f114767b2d0cb9c5b6c592cb3a635e6f-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing scsmithr/oxide_db
[INFO] finished frobbing scsmithr/oxide_db
[INFO] frobbed toml for scsmithr/oxide_db written to work/ex/pr-57501/sources/master#6ecad338381cc3b8d56e2df22e5971a598eddd6c/gh/scsmithr/oxide_db/Cargo.toml
[INFO] started frobbing scsmithr/oxide_db
[INFO] finished frobbing scsmithr/oxide_db
[INFO] frobbed toml for scsmithr/oxide_db written to work/ex/pr-57501/sources/try#5f789154f114767b2d0cb9c5b6c592cb3a635e6f/gh/scsmithr/oxide_db/Cargo.toml
[INFO] crate scsmithr/oxide_db has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+6ecad338381cc3b8d56e2df22e5971a598eddd6c-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f789154f114767b2d0cb9c5b6c592cb3a635e6f-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking scsmithr/oxide_db against try#5f789154f114767b2d0cb9c5b6c592cb3a635e6f for pr-57501
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57501/worker-0/try#5f789154f114767b2d0cb9c5b6c592cb3a635e6f:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57501/sources/try#5f789154f114767b2d0cb9c5b6c592cb3a635e6f/gh/scsmithr/oxide_db:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+5f789154f114767b2d0cb9c5b6c592cb3a635e6f-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 16940bf0367b92c4660b0ce76502bdf4cf98afaacd79bea79e419c2aef999f90
[INFO] running `"docker" "start" "-a" "16940bf0367b92c4660b0ce76502bdf4cf98afaacd79bea79e419c2aef999f90"`
[INFO] [stderr]     Checking oxide_db v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]   --> src/marshallable/string_marshaller.rs:28:17
[INFO] [stderr]    |
[INFO] [stderr] 28 |             Err(e) => Err(UnmarshalError),
[INFO] [stderr]    |                 ^ help: consider using `_e` instead
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]   --> src/marshallable/string_marshaller.rs:28:17
[INFO] [stderr]    |
[INFO] [stderr] 28 |             Err(e) => Err(UnmarshalError),
[INFO] [stderr]    |                 ^ help: consider using `_e` instead
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Node`
[INFO] [stderr]   --> src/entity/node.rs:23:1
[INFO] [stderr]    |
[INFO] [stderr] 23 | pub struct Node {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/entity/node.rs:28:5
[INFO] [stderr]    |
[INFO] [stderr] 28 |     fn new() -> Node {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `StringMarshaller`
[INFO] [stderr]  --> src/marshallable/string_marshaller.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub struct StringMarshaller {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]  --> src/marshallable/string_marshaller.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     pub fn new(val: String) -> StringMarshaller {
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `empty`
[INFO] [stderr]   --> src/marshallable/string_marshaller.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     pub fn empty() -> StringMarshaller {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.48s
[INFO] running `"docker" "inspect" "16940bf0367b92c4660b0ce76502bdf4cf98afaacd79bea79e419c2aef999f90"`
[INFO] running `"docker" "rm" "-f" "16940bf0367b92c4660b0ce76502bdf4cf98afaacd79bea79e419c2aef999f90"`
[INFO] [stdout] 16940bf0367b92c4660b0ce76502bdf4cf98afaacd79bea79e419c2aef999f90