[INFO] fetching crate ferrumec 0.4.0...
[INFO] checking ferrumec-0.4.0 against c60b92c03ca8a3b101eb9d57f51e2232690638c7 for pr-164148-crater-rollup
[INFO] extracting crate ferrumec 0.4.0 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate ferrumec 0.4.0
[INFO] finished tweaking crates.io crate ferrumec 0.4.0
[INFO] tweaked toml for crates.io crate ferrumec 0.4.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate ferrumec 0.4.0 on toolchain c60b92c03ca8a3b101eb9d57f51e2232690638c7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c60b92c03ca8a3b101eb9d57f51e2232690638c7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate ferrumec 0.4.0 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" "+c60b92c03ca8a3b101eb9d57f51e2232690638c7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 4c63cee137934b4df6debf81f62445a70061d842c3eb7c013047cf78959b5615
[INFO] running `Command { std: "docker" "start" "4c63cee137934b4df6debf81f62445a70061d842c3eb7c013047cf78959b5615", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4c63cee137934b4df6debf81f62445a70061d842c3eb7c013047cf78959b5615", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "4c63cee137934b4df6debf81f62445a70061d842c3eb7c013047cf78959b5615" "/opt/rustwide/cargo-home/bin/cargo" "+c60b92c03ca8a3b101eb9d57f51e2232690638c7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4c63cee137934b4df6debf81f62445a70061d842c3eb7c013047cf78959b5615", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-w" "/opt/rustwide/workdir" "--user" "0:0" "4c63cee137934b4df6debf81f62445a70061d842c3eb7c013047cf78959b5615" "/opt/rustwide/cargo-home/bin/cargo" "+c60b92c03ca8a3b101eb9d57f51e2232690638c7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] [stdout] warning: unused import: `Permissions`
[INFO] [stdout]   --> src/permission/mod.rs:94:33
[INFO] [stdout]    |
[INFO] [stdout] 94 | pub use middleware::{Authority, Permissions};
[INFO] [stdout]    |                                 ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `permission::PermissionSet`
[INFO] [stdout]   --> src/permission/mod.rs:95:9
[INFO] [stdout]    |
[INFO] [stdout] 95 | pub use permission::PermissionSet;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Permissions`
[INFO] [stdout]   --> src/permission/mod.rs:94:33
[INFO] [stdout]    |
[INFO] [stdout] 94 | pub use middleware::{Authority, Permissions};
[INFO] [stdout]    |                                 ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `permission::PermissionSet`
[INFO] [stdout]   --> src/permission/mod.rs:95:9
[INFO] [stdout]    |
[INFO] [stdout] 95 | pub use permission::PermissionSet;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `PermissionError` is never used
[INFO] [stdout]   --> src/permission/error.rs:20:10
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub enum PermissionError {
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/permission/middleware.rs:31:12
[INFO] [stdout]    |
[INFO] [stdout] 30 | impl Permissions {
[INFO] [stdout]    | ---------------- associated function in this implementation
[INFO] [stdout] 31 |     pub fn new(permission_set: PermissionSet, store: Arc<dyn Store<Uuid, Authority>>) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/permission/permission.rs:60:12
[INFO] [stdout]    |
[INFO] [stdout] 44 | impl Permission {
[INFO] [stdout]    | --------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 60 |     pub fn new(method: Method, url: &str, bit_id: u8) -> Result<Self, PermissionError> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `PermissionJson` is never constructed
[INFO] [stdout]   --> src/permission/permission.rs:77:8
[INFO] [stdout]    |
[INFO] [stdout] 77 | struct PermissionJson {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `deserialize_bit_id` is never used
[INFO] [stdout]   --> src/permission/permission.rs:85:4
[INFO] [stdout]    |
[INFO] [stdout] 85 | fn deserialize_bit_id<'de, D>(deserializer: D) -> Result<u64, D::Error>
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `PermissionsJson` is never constructed
[INFO] [stdout]   --> src/permission/permission.rs:95:8
[INFO] [stdout]    |
[INFO] [stdout] 95 | struct PermissionsJson {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/permission/permission.rs:141:12
[INFO] [stdout]     |
[INFO] [stdout] 122 | impl PermissionSet {
[INFO] [stdout]     | ------------------ associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 141 |     pub fn new(permissions: Vec<Permission>) -> Result<Self, PermissionError> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 177 |     pub fn from_file(path: &str) -> Result<Self, PermissionError> {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 187 |     pub fn from_reader<R: std::io::Read>(reader: R) -> Result<Self, PermissionError> {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 211 |     pub fn from_json(value: serde_json::Value) -> Result<Self, PermissionError> {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 218 |     fn from_deserialized(json: PermissionsJson) -> Result<Self, PermissionError> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 274 |     pub fn len(&self) -> usize {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 279 |     pub fn is_empty(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `Result<(), Box<dyn StdError + Send + Sync>>` ferrumec
[INFO] [stdout]    --> src/event/mod.rs:105:13
[INFO] [stdout]     |
[INFO] [stdout] 105 | /             es.publish(
[INFO] [stdout] 106 | |                 Self::SUBJECT.to_string(),
[INFO] [stdout] 107 | |                 serde_json::to_string(self)?.into(),
[INFO] [stdout] ...   |
[INFO] [stdout] 110 | |             .into()
[INFO] [stdout]     | |___________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]     = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]     |
[INFO] [stdout] 109 -             .await
[INFO] [stdout] 110 -             .into()
[INFO] [stdout] 109 +             .await
[INFO] [stdout]     |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]     |
[INFO] [stdout] 105 ~             <Result<(), Box<dyn StdError + Send + Sync>> as Into<_>>::into(es.publish(
[INFO] [stdout] 106 |                 Self::SUBJECT.to_string(),
[INFO] [stdout] 107 |                 serde_json::to_string(self)?.into(),
[INFO] [stdout] 108 |             )
[INFO] [stdout] 109 ~             .await)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ferrumec` (lib) due to 1 previous error; 9 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: variant `InvalidRoute` is never constructed
[INFO] [stdout]   --> src/permission/error.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub enum PermissionError {
[INFO] [stdout]    |          --------------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 35 |     InvalidRoute(String),
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `PermissionError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/permission/middleware.rs:31:12
[INFO] [stdout]    |
[INFO] [stdout] 30 | impl Permissions {
[INFO] [stdout]    | ---------------- associated function in this implementation
[INFO] [stdout] 31 |     pub fn new(permission_set: PermissionSet, store: Arc<dyn Store<Uuid, Authority>>) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `Result<(), Box<dyn StdError + Send + Sync>>` ferrumec
[INFO] [stdout]    --> src/event/mod.rs:105:13
[INFO] [stdout]     |
[INFO] [stdout] 105 | /             es.publish(
[INFO] [stdout] 106 | |                 Self::SUBJECT.to_string(),
[INFO] [stdout] 107 | |                 serde_json::to_string(self)?.into(),
[INFO] [stdout] ...   |
[INFO] [stdout] 110 | |             .into()
[INFO] [stdout]     | |___________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]     = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]     |
[INFO] [stdout] 109 -             .await
[INFO] [stdout] 110 -             .into()
[INFO] [stdout] 109 +             .await
[INFO] [stdout]     |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]     |
[INFO] [stdout] 105 ~             <Result<(), Box<dyn StdError + Send + Sync>> as Into<_>>::into(es.publish(
[INFO] [stdout] 106 |                 Self::SUBJECT.to_string(),
[INFO] [stdout] 107 |                 serde_json::to_string(self)?.into(),
[INFO] [stdout] 108 |             )
[INFO] [stdout] 109 ~             .await)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ferrumec` (lib test) due to 1 previous error; 4 warnings emitted
[INFO] [stderr] warning: unused dependency `futures`
[INFO] [stderr]   --> Cargo.toml:17:15
[INFO] [stderr]    |
[INFO] [stderr] 17 | [dependencies.futures]
[INFO] [stderr]    |               ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::unused_dependencies` is set to `warn` by default
[INFO] [stderr] help: consider removing the dependency on `futures`
[INFO] [stderr] warning: unused dependency `tracing-actix-web`
[INFO] [stderr]   --> Cargo.toml:65:15
[INFO] [stderr]    |
[INFO] [stderr] 65 | [dependencies.tracing-actix-web]
[INFO] [stderr]    |               ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] help: consider removing the dependency on `tracing-actix-web`
[INFO] [stderr] warning: unused dependency `tracing-opentelemetry`
[INFO] [stderr]   --> Cargo.toml:68:15
[INFO] [stderr]    |
[INFO] [stderr] 68 | [dependencies.tracing-opentelemetry]
[INFO] [stderr]    |               ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] help: consider removing the dependency on `tracing-opentelemetry`
[INFO] [stderr] warning: `ferrumec` (manifest) generated 3 warnings
[INFO] running `Command { std: "docker" "inspect" "4c63cee137934b4df6debf81f62445a70061d842c3eb7c013047cf78959b5615", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c63cee137934b4df6debf81f62445a70061d842c3eb7c013047cf78959b5615", kill_on_drop: false }`
[INFO] [stdout] 4c63cee137934b4df6debf81f62445a70061d842c3eb7c013047cf78959b5615
