[INFO] crate pallet 0.1.0 is already in cache
[INFO] checking pallet-0.1.0 against master#0cbcb17d3306d6e22eafc2c05ce885db97d0189c for pr-68766
[INFO] extracting crate pallet 0.1.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate pallet 0.1.0 on toolchain 0cbcb17d3306d6e22eafc2c05ce885db97d0189c
[INFO] running `"/workspace/cargo-home/bin/cargo" "+0cbcb17d3306d6e22eafc2c05ce885db97d0189c" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate pallet 0.1.0
[INFO] finished tweaking crates.io crate pallet 0.1.0
[INFO] tweaked toml for crates.io crate pallet 0.1.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate pallet 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+0cbcb17d3306d6e22eafc2c05ce885db97d0189c" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+0cbcb17d3306d6e22eafc2c05ce885db97d0189c" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 463e15863d9ea91022477baba3c795503f001fe5cd2b9cc23e809124f98c1555
[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" "463e15863d9ea91022477baba3c795503f001fe5cd2b9cc23e809124f98c1555"`
[INFO] [stderr]    Compiling serde_derive v1.0.103
[INFO] [stderr]    Compiling thiserror-impl v1.0.9
[INFO] [stderr]     Checking crossbeam-epoch v0.7.2
[INFO] [stderr]     Checking thiserror v1.0.9
[INFO] [stderr]     Checking serde v1.0.103
[INFO] [stderr]     Checking bincode v1.2.1
[INFO] [stderr]     Checking serde_bytes v0.11.3
[INFO] [stderr]     Checking sled v0.29.2
[INFO] [stderr]     Checking pallet v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `objects_tree`
[INFO] [stderr]   --> src/lib.rs:67:52
[INFO] [stderr]    |
[INFO] [stderr] 67 |         (&objects_tree, &index_tree).transaction(|(objects_tree, index_tree)| {
[INFO] [stderr]    |                                                    ^^^^^^^^^^^^ help: consider prefixing with an underscore: `_objects_tree`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `index_tree`
[INFO] [stderr]   --> src/lib.rs:67:66
[INFO] [stderr]    |
[INFO] [stderr] 67 |         (&objects_tree, &index_tree).transaction(|(objects_tree, index_tree)| {
[INFO] [stderr]    |                                                                  ^^^^^^^^^^ help: consider prefixing with an underscore: `_index_tree`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `indexes`
[INFO] [stderr]   --> src/lib.rs:60:13
[INFO] [stderr]    |
[INFO] [stderr] 60 |         let indexes = t.indexes();
[INFO] [stderr]    |             ^^^^^^^ help: consider prefixing with an underscore: `_indexes`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `objects_tree`
[INFO] [stderr]   --> src/lib.rs:67:52
[INFO] [stderr]    |
[INFO] [stderr] 67 |         (&objects_tree, &index_tree).transaction(|(objects_tree, index_tree)| {
[INFO] [stderr]    |                                                    ^^^^^^^^^^^^ help: consider prefixing with an underscore: `_objects_tree`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `index_tree`
[INFO] [stderr]   --> src/lib.rs:67:66
[INFO] [stderr]    |
[INFO] [stderr] 67 |         (&objects_tree, &index_tree).transaction(|(objects_tree, index_tree)| {
[INFO] [stderr]    |                                                                  ^^^^^^^^^^ help: consider prefixing with an underscore: `_index_tree`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `id`
[INFO] [stderr]   --> src/lib.rs:65:13
[INFO] [stderr]    |
[INFO] [stderr] 65 |         let id = db.generate_id()?;
[INFO] [stderr]    |             ^^ help: consider prefixing with an underscore: `_id`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `indexes`
[INFO] [stderr]   --> src/lib.rs:60:13
[INFO] [stderr]    |
[INFO] [stderr] 60 |         let indexes = t.indexes();
[INFO] [stderr]    |             ^^^^^^^ help: consider prefixing with an underscore: `_indexes`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `id`
[INFO] [stderr]   --> src/lib.rs:65:13
[INFO] [stderr]    |
[INFO] [stderr] 65 |         let id = db.generate_id()?;
[INFO] [stderr]    |             ^^ help: consider prefixing with an underscore: `_id`
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `indexes`
[INFO] [stderr]   --> src/lib.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 |     indexes: Option<Vec<(&'static str, Vec<u8>)>>
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `build_index_key`
[INFO] [stderr]   --> src/lib.rs:39:5
[INFO] [stderr]    |
[INFO] [stderr] 39 |     fn build_index_key(k1: &[u8], k2: &[u8]) -> bytes::Bytes {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `build_inv_index_key`
[INFO] [stderr]   --> src/lib.rs:49:5
[INFO] [stderr]    |
[INFO] [stderr] 49 |     fn build_inv_index_key(k1: u64) -> bytes::Bytes {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `indexes`
[INFO] [stderr]   --> src/lib.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 |     indexes: Option<Vec<(&'static str, Vec<u8>)>>
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `build_index_key`
[INFO] [stderr]   --> src/lib.rs:39:5
[INFO] [stderr]    |
[INFO] [stderr] 39 |     fn build_index_key(k1: &[u8], k2: &[u8]) -> bytes::Bytes {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `build_inv_index_key`
[INFO] [stderr]   --> src/lib.rs:49:5
[INFO] [stderr]    |
[INFO] [stderr] 49 |     fn build_inv_index_key(k1: u64) -> bytes::Bytes {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0601]: `main` function not found in crate `simple`
[INFO] [stderr]   |
[INFO] [stderr]   = note: consider adding a `main` function to `examples/simple.rs`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0601`.
[INFO] [stderr] error: could not compile `pallet`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "463e15863d9ea91022477baba3c795503f001fe5cd2b9cc23e809124f98c1555"`
[INFO] running `"docker" "rm" "-f" "463e15863d9ea91022477baba3c795503f001fe5cd2b9cc23e809124f98c1555"`
[INFO] [stdout] 463e15863d9ea91022477baba3c795503f001fe5cd2b9cc23e809124f98c1555