[INFO] fetching crate kotoba-deploy 0.1.16...
[INFO] testing kotoba-deploy-0.1.16 against 1.90.0 for beta-1.91-3
[INFO] extracting crate kotoba-deploy 0.1.16 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate kotoba-deploy 0.1.16
[INFO] finished tweaking crates.io crate kotoba-deploy 0.1.16
[INFO] tweaked toml for crates.io crate kotoba-deploy 0.1.16 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate kotoba-deploy 0.1.16 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate kotoba-deploy 0.1.16 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_derive v1.0.225
[INFO] [stderr]   Downloaded tokio-retry v0.3.0
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[INFO] [stderr]   Downloaded serde_core v1.0.225
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[INFO] [stderr]   Downloaded jsonschema v0.17.1
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[INFO] [stderr]   Downloaded kotoba-graph v0.1.17
[INFO] [stderr]   Downloaded kotoba-storage v0.1.16
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.102
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[INFO] [stderr]   Downloaded wasm-bindgen-futures v0.4.52
[INFO] [stderr]   Downloaded kotoba-core v0.1.19
[INFO] [stderr]   Downloaded sha1_smol v1.0.1
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[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.102
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5ea3b97b65c89c54c77caed22912c29a6fe19d89d8b6b3fdf7d3c9f0031bede1
[INFO] running `Command { std: "docker" "start" "-a" "5ea3b97b65c89c54c77caed22912c29a6fe19d89d8b6b3fdf7d3c9f0031bede1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5ea3b97b65c89c54c77caed22912c29a6fe19d89d8b6b3fdf7d3c9f0031bede1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ea3b97b65c89c54c77caed22912c29a6fe19d89d8b6b3fdf7d3c9f0031bede1", kill_on_drop: false }`
[INFO] [stdout] 5ea3b97b65c89c54c77caed22912c29a6fe19d89d8b6b3fdf7d3c9f0031bede1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6149490c8080272764faf0383b55c862e0aa3c35f1cf0feccfac33e104e57ecc
[INFO] running `Command { std: "docker" "start" "-a" "6149490c8080272764faf0383b55c862e0aa3c35f1cf0feccfac33e104e57ecc", kill_on_drop: false }`
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[INFO] [stderr]    Compiling kotoba-core v0.1.19
[INFO] [stderr]    Compiling kotoba-cid v0.1.16
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[INFO] [stderr]    Compiling kotoba-storage v0.1.16
[INFO] [stdout] error[E0432]: unresolved imports `crate::lsm`, `crate::merkle`, `crate::mvcc`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/kotoba-storage-0.1.16/src/storage/persistent.rs:14:13
[INFO] [stdout]    |
[INFO] [stdout] 14 | use crate::{lsm::*, merkle::*, mvcc::*};
[INFO] [stdout]    |             ^^^     ^^^^^^     ^^^^ unresolved import
[INFO] [stdout]    |             |       |
[INFO] [stdout]    |             |       unresolved import
[INFO] [stdout]    |             unresolved import
[INFO] [stdout]    |
[INFO] [stdout] help: a similar path exists
[INFO] [stdout]    |
[INFO] [stdout] 14 | use crate::{storage::lsm::*, merkle::*, mvcc::*};
[INFO] [stdout]    |             +++++++++
[INFO] [stdout] help: a similar path exists
[INFO] [stdout]    |
[INFO] [stdout] 14 | use crate::{lsm::*, storage::merkle::*, mvcc::*};
[INFO] [stdout]    |                     +++++++++
[INFO] [stdout] help: a similar path exists
[INFO] [stdout]    |
[INFO] [stdout] 14 | use crate::{lsm::*, merkle::*, storage::mvcc::*};
[INFO] [stdout]    |                                +++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `rocksdb`
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/kotoba-storage-0.1.16/src/storage/lsm.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use rocksdb::{DB, Options, WriteBatch, IteratorMode};
[INFO] [stdout]   |     ^^^^^^^ use of unresolved module or unlinked crate `rocksdb`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `rocksdb`, use `cargo add rocksdb` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `crate::storage::backend`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/kotoba-storage-0.1.16/src/lib.rs:10:29
[INFO] [stdout]    |
[INFO] [stdout] 10 |     pub use crate::storage::backend::{StorageBackend, BackendStats, StorageManager, StorageConfig, BackendType};
[INFO] [stdout]    |                             ^^^^^^^ could not find `backend` in `storage`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0107]: enum takes 2 generic arguments but 1 generic argument was supplied
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/kotoba-storage-0.1.16/src/storage/object.rs:250:50
[INFO] [stdout]     |
[INFO] [stdout] 250 |     pub async fn new(_config: &StorageConfig) -> Result<Self> {
[INFO] [stdout]     |                                                  ^^^^^^ ---- supplied 1 generic argument
[INFO] [stdout]     |                                                  |
[INFO] [stdout]     |                                                  expected 2 generic arguments
[INFO] [stdout]     |
[INFO] [stdout] help: add missing generic argument
[INFO] [stdout]     |
[INFO] [stdout] 250 |     pub async fn new(_config: &StorageConfig) -> Result<Self, E> {
[INFO] [stdout]     |                                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0592]: duplicate definitions with name `replicate_data`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/kotoba-storage-0.1.16/src/storage/persistent.rs:711:5
[INFO] [stdout]     |
[INFO] [stdout] 528 |     pub async fn replicate_data(&self, cid: &Cid, data: &[u8], replication_factor: usize) -> Result<()> {
[INFO] [stdout]     |     --------------------------------------------------------------------------------------------------- other definition for `replicate_data`
[INFO] [stdout] ...
[INFO] [stdout] 711 |     pub async fn replicate_data(&self, cid: &Cid, data: &[u8], replication_factor: usize) -> Result<()> {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ duplicate definitions for `replicate_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `kotoba_core::types::ContentHash: std::cmp::Ord` is not satisfied
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/kotoba-storage-0.1.16/src/storage/merkle.rs:133:16
[INFO] [stdout]     |
[INFO] [stdout] 133 |         leaves.sort_by_key(|node| &node.hash);
[INFO] [stdout]     |                ^^^^^^^^^^^ the trait `std::cmp::Ord` is not implemented for `kotoba_core::types::ContentHash`
[INFO] [stdout]     |
[INFO] [stdout]     = note: required for `&kotoba_core::types::ContentHash` to implement `std::cmp::Ord`
[INFO] [stdout] note: required by a bound in `slice::<impl [T]>::sort_by_key`
[INFO] [stdout]    --> /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/alloc/src/slice.rs:245:5
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: a value of type `Vec<&merkle::MerkleNode>` cannot be built from an iterator over elements of type `merkle::MerkleNode`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/kotoba-storage-0.1.16/src/storage/merkle.rs:157:18
[INFO] [stdout]     |
[INFO] [stdout] 157 |                 .collect();
[INFO] [stdout]     |                  ^^^^^^^ value of type `Vec<&merkle::MerkleNode>` cannot be built from `std::iter::Iterator<Item=merkle::MerkleNode>`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `FromIterator<merkle::MerkleNode>` is not implemented for `Vec<&merkle::MerkleNode>`
[INFO] [stdout]             but trait `FromIterator<&merkle::MerkleNode>` is implemented for it
[INFO] [stdout]     = help: for that trait implementation, expected `&merkle::MerkleNode`, found `merkle::MerkleNode`
[INFO] [stdout] note: the method call chain might not have had the expected associated types
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/kotoba-storage-0.1.16/src/storage/merkle.rs:151:18
[INFO] [stdout]     |
[INFO] [stdout] 137 |               let mut new_level = Vec::new();
[INFO] [stdout]     |                                   ---------- this expression has type `Vec<ContentHash>`
[INFO] [stdout] ...
[INFO] [stdout] 150 |               leaves = new_level.into_iter()
[INFO] [stdout]     |                                  ----------- `Iterator::Item` is `ContentHash` here
[INFO] [stdout] 151 |                   .map(|hash| MerkleNode {
[INFO] [stdout]     |  __________________^
[INFO] [stdout] 152 | |                     hash: hash.clone(),
[INFO] [stdout] 153 | |                     data: Vec::new(),
[INFO] [stdout] 154 | |                     children: Vec::new(),
[INFO] [stdout] 155 | |                     timestamp: 0,
[INFO] [stdout] 156 | |                 })
[INFO] [stdout]     | |__________________^ `Iterator::Item` changed to `MerkleNode` here
[INFO] [stdout] note: required by a bound in `collect`
[INFO] [stdout]    --> /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/iter/traits/iterator.rs:2014:5
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `compute_node_cid` found for struct `parking_lot::lock_api::RwLockWriteGuard<'_, parking_lot::RawRwLock, kotoba_cid::CidManager>` in the current scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/kotoba-storage-0.1.16/src/storage/persistent.rs:123:42
[INFO] [stdout]     |
[INFO] [stdout] 123 |             let vertex_cid = cid_manager.compute_node_cid(vertex)?;
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: there is a method `compute_rule_cid` with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 123 -             let vertex_cid = cid_manager.compute_node_cid(vertex)?;
[INFO] [stdout] 123 +             let vertex_cid = cid_manager.compute_rule_cid(vertex)?;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `compute_edge_cid` found for struct `parking_lot::lock_api::RwLockWriteGuard<'_, parking_lot::RawRwLock, kotoba_cid::CidManager>` in the current scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/kotoba-storage-0.1.16/src/storage/persistent.rs:135:40
[INFO] [stdout]     |
[INFO] [stdout] 135 |             let edge_cid = cid_manager.compute_edge_cid(edge)?;
[INFO] [stdout]     |                                        ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: there is a method `compute_rule_cid` with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 135 -             let edge_cid = cid_manager.compute_edge_cid(edge)?;
[INFO] [stdout] 135 +             let edge_cid = cid_manager.compute_rule_cid(edge)?;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `?` couldn't convert the error to `KotobaError`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/kotoba-storage-0.1.16/src/storage/persistent.rs:175:85
[INFO] [stdout]     |
[INFO] [stdout] 175 |         let persisted_graph: PersistedGraph = serde_json::from_slice(&metadata_data)?;
[INFO] [stdout]     |                                               --------------------------------------^ the trait `From<serde_json::Error>` is not implemented for `KotobaError`
[INFO] [stdout]     |                                               |
[INFO] [stdout]     |                                               this can't be annotated with `?` because it has type `Result<_, serde_json::Error>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: the question mark operation (`?`) implicitly performs a conversion on the error value using the `From` trait
[INFO] [stdout]     = help: the following other types implement trait `From<T>`:
[INFO] [stdout]               `KotobaError` implements `From<WorkflowError>`
[INFO] [stdout]               `KotobaError` implements `From<std::io::Error>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `?` couldn't convert the error to `KotobaError`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/kotoba-storage-0.1.16/src/storage/persistent.rs:186:74
[INFO] [stdout]     |
[INFO] [stdout] 186 |             let vertex: VertexData = serde_json::from_slice(&vertex_data)?;
[INFO] [stdout]     |                                      ------------------------------------^ the trait `From<serde_json::Error>` is not implemented for `KotobaError`
[INFO] [stdout]     |                                      |
[INFO] [stdout]     |                                      this can't be annotated with `?` because it has type `Result<_, serde_json::Error>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: the question mark operation (`?`) implicitly performs a conversion on the error value using the `From` trait
[INFO] [stdout]     = help: the following other types implement trait `From<T>`:
[INFO] [stdout]               `KotobaError` implements `From<WorkflowError>`
[INFO] [stdout]               `KotobaError` implements `From<std::io::Error>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `?` couldn't convert the error to `KotobaError`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/kotoba-storage-0.1.16/src/storage/persistent.rs:199:68
[INFO] [stdout]     |
[INFO] [stdout] 199 |             let edge: EdgeData = serde_json::from_slice(&edge_data)?;
[INFO] [stdout]     |                                  ----------------------------------^ the trait `From<serde_json::Error>` is not implemented for `KotobaError`
[INFO] [stdout]     |                                  |
[INFO] [stdout]     |                                  this can't be annotated with `?` because it has type `Result<_, serde_json::Error>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: the question mark operation (`?`) implicitly performs a conversion on the error value using the `From` trait
[INFO] [stdout]     = help: the following other types implement trait `From<T>`:
[INFO] [stdout]               `KotobaError` implements `From<WorkflowError>`
[INFO] [stdout]               `KotobaError` implements `From<std::io::Error>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `new` found for struct `CoreWrapper` in the current scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/kotoba-storage-0.1.16/src/storage/persistent.rs:247:40
[INFO] [stdout]     |
[INFO] [stdout] 247 |         let mut hasher = sha2::Sha256::new();
[INFO] [stdout]     |                                        ^^^ function or associated item not found in `CoreWrapper<CtVariableCoreWrapper<Sha256VarCore, UInt<..., ...>, ...>>`
[INFO] [stdout]     |
[INFO] [stdout] note: if you're trying to build a new `CoreWrapper<CtVariableCoreWrapper<Sha256VarCore, UInt<UInt<UInt<UInt<UInt<UInt<UTerm, B1>, B0>, B0>, B0>, B0>, B0>, OidSha256>>`, consider using `CoreWrapper::<T>::from_core` which returns `CoreWrapper<_>`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/digest-0.10.7/src/core_api/wrapper.rs:70:5
[INFO] [stdout]     |
[INFO] [stdout]  70 |     pub fn from_core(core: T) -> Self {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: trait `Digest` which provides `new` is implemented but not in scope; perhaps you want to import it
[INFO] [stdout]     |
[INFO] [stdout]   6 + use sha2::Digest;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `new` found for struct `CoreWrapper` in the current scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/kotoba-storage-0.1.16/src/storage/persistent.rs:264:44
[INFO] [stdout]     |
[INFO] [stdout] 264 |             let mut hasher = sha2::Sha256::new();
[INFO] [stdout]     |                                            ^^^ function or associated item not found in `CoreWrapper<CtVariableCoreWrapper<Sha256VarCore, UInt<..., ...>, ...>>`
[INFO] [stdout]     |
[INFO] [stdout] note: if you're trying to build a new `CoreWrapper<CtVariableCoreWrapper<Sha256VarCore, UInt<UInt<UInt<UInt<UInt<UInt<UTerm, B1>, B0>, B0>, B0>, B0>, B0>, OidSha256>>`, consider using `CoreWrapper::<T>::from_core` which returns `CoreWrapper<_>`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/digest-0.10.7/src/core_api/wrapper.rs:70:5
[INFO] [stdout]     |
[INFO] [stdout]  70 |     pub fn from_core(core: T) -> Self {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: trait `Digest` which provides `new` is implemented but not in scope; perhaps you want to import it
[INFO] [stdout]     |
[INFO] [stdout]   6 + use sha2::Digest;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `?` couldn't convert the error to `KotobaError`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/kotoba-storage-0.1.16/src/storage/persistent.rs:295:64
[INFO] [stdout]     |
[INFO] [stdout] 295 |         let merkle_data = serde_json::to_vec(&merkle_dag.nodes)?;
[INFO] [stdout]     |                           -------------------------------------^ the trait `From<serde_json::Error>` is not implemented for `KotobaError`
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           this can't be annotated with `?` because it has type `Result<_, serde_json::Error>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: the question mark operation (`?`) implicitly performs a conversion on the error value using the `From` trait
[INFO] [stdout]     = help: the following other types implement trait `From<T>`:
[INFO] [stdout]               `KotobaError` implements `From<WorkflowError>`
[INFO] [stdout]               `KotobaError` implements `From<std::io::Error>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `?` couldn't convert the error to `KotobaError`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/kotoba-storage-0.1.16/src/storage/persistent.rs:311:95
[INFO] [stdout]     |
[INFO] [stdout] 311 |             let nodes: HashMap<ContentHash, MerkleNode> = serde_json::from_slice(&merkle_data)?;
[INFO] [stdout]     |                                                           ------------------------------------^ the trait `From<serde_json::Error>` is not implemented for `KotobaError`
[INFO] [stdout]     |                                                           |
[INFO] [stdout]     |                                                           this can't be annotated with `?` because it has type `Result<_, serde_json::Error>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: the question mark operation (`?`) implicitly performs a conversion on the error value using the `From` trait
[INFO] [stdout]     = help: the following other types implement trait `From<T>`:
[INFO] [stdout]               `KotobaError` implements `From<WorkflowError>`
[INFO] [stdout]               `KotobaError` implements `From<std::io::Error>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0107, E0277, E0432, E0592, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0107`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `kotoba-storage` (lib) due to 16 previous errors
[INFO] running `Command { std: "docker" "inspect" "6149490c8080272764faf0383b55c862e0aa3c35f1cf0feccfac33e104e57ecc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6149490c8080272764faf0383b55c862e0aa3c35f1cf0feccfac33e104e57ecc", kill_on_drop: false }`
[INFO] [stdout] 6149490c8080272764faf0383b55c862e0aa3c35f1cf0feccfac33e104e57ecc
