[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-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/gh/scsmithr/oxide_db"`
[INFO] [stderr] Cloning into 'work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/gh/scsmithr/oxide_db'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/scsmithr/oxide_db" "work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/gh/scsmithr/oxide_db"`
[INFO] [stderr] Cloning into 'work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/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#39401465da4ce27aeeb2c2a26133ac35c63aa515
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of scsmithr/oxide_db on toolchain try#f45cc3094ee337acd688771b9234318046b0572d
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+f45cc3094ee337acd688771b9234318046b0572d-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-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/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-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/gh/scsmithr/oxide_db/Cargo.toml
[INFO] crate scsmithr/oxide_db already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+f45cc3094ee337acd688771b9234318046b0572d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking scsmithr/oxide_db against try#f45cc3094ee337acd688771b9234318046b0572d for pr-60914
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60914/worker-0/try#f45cc3094ee337acd688771b9234318046b0572d:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/gh/scsmithr/oxide_db:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/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" "+f45cc3094ee337acd688771b9234318046b0572d-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 2dd5d7344976d9f84f5e6f250d30ca9a56fdb9f86f1a6088f6a589866012b4bf
[INFO] running `"docker" "start" "-a" "2dd5d7344976d9f84f5e6f250d30ca9a56fdb9f86f1a6088f6a589866012b4bf"`
[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 prefixing with an underscore: `_e`
[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] 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 prefixing with an underscore: `_e`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.24s
[INFO] running `"docker" "inspect" "2dd5d7344976d9f84f5e6f250d30ca9a56fdb9f86f1a6088f6a589866012b4bf"`
[INFO] running `"docker" "rm" "-f" "2dd5d7344976d9f84f5e6f250d30ca9a56fdb9f86f1a6088f6a589866012b4bf"`
[INFO] [stdout] 2dd5d7344976d9f84f5e6f250d30ca9a56fdb9f86f1a6088f6a589866012b4bf