[INFO] fetching crate simplesocket 1.0.0...
[INFO] testing simplesocket-1.0.0 against master#ec6f9a5b4413f74386267ef8efc93712c2ce6db6 for pr-155739-1
[INFO] extracting crate simplesocket 1.0.0 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate simplesocket 1.0.0
[INFO] finished tweaking crates.io crate simplesocket 1.0.0
[INFO] tweaked toml for crates.io crate simplesocket 1.0.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate simplesocket 1.0.0 on toolchain ec6f9a5b4413f74386267ef8efc93712c2ce6db6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 180 packages to latest compatible versions
[INFO] [stderr]       Adding generic-array v0.14.7 (available: v0.14.9)
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[INFO] running `Command { std: "docker" "start" "-a" "bd019b57dc17cb6b34a66c155addeab1c46494541bc5804470791a2554e5c676", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3990fbf6d355c8e484d8c08c224f8b40b2b9a41749909d278d7d9f848345b3cb
[INFO] running `Command { std: "docker" "start" "-a" "3990fbf6d355c8e484d8c08c224f8b40b2b9a41749909d278d7d9f848345b3cb", kill_on_drop: false }`
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[INFO] [stderr]    Compiling simplesocket v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `cell::Cell`
[INFO] [stdout]  --> src/context.rs:2:11
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::{cell::Cell, collections::HashMap};
[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: `futures::Future`
[INFO] [stdout]  --> src/context.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use futures::Future;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `RwLock`
[INFO] [stdout]   --> src/context.rs:10:25
[INFO] [stdout]    |
[INFO] [stdout] 10 | use tokio::sync::{mpsc, RwLock, Mutex};
[INFO] [stdout]    |                         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `futures::Future`
[INFO] [stdout]  --> src/subscription.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use futures::Future;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `serde::Serialize`
[INFO] [stdout]  --> src/subscription.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use serde::Serialize;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Visitor`
[INFO] [stdout]  --> src/message.rs:1:42
[INFO] [stdout]   |
[INFO] [stdout] 1 | use serde::{Serialize, Deserialize, de::{Visitor, Error}};
[INFO] [stdout]   |                                          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `serde_json::json`
[INFO] [stdout]   --> src/lib.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use serde_json::json;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `RwLock`
[INFO] [stdout]   --> src/lib.rs:11:34
[INFO] [stdout]    |
[INFO] [stdout] 11 | use tokio::sync::{mpsc::channel, RwLock};
[INFO] [stdout]    |                                  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lib.rs:16:76
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub async fn connect_socket(project_id: &'static str, token: &'static str, mut events: impl Events) {
[INFO] [stdout]    |                                                                            ----^^^^^^
[INFO] [stdout]    |                                                                            |
[INFO] [stdout]    |                                                                            help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `val`
[INFO] [stdout]   --> src/message.rs:49:7
[INFO] [stdout]    |
[INFO] [stdout] 49 |         let val = serde_json::Value::deserialize(deserializer)?.as_array().unwrap_or(Err(Error::custom("not an array"))?);
[INFO] [stdout]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_val`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `hash` and `filter` are never read
[INFO] [stdout]   --> src/subscription.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub(crate) struct Subscription {
[INFO] [stdout]    |                   ------------ fields in this struct
[INFO] [stdout] 12 |     pub hash: i64,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 13 |     pub callback: Arc<Box<dyn Subscriber + 'static + Send + Sync>>,
[INFO] [stdout] 14 |     pub filter: Value,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Publish`, `Edit`, `Unsubscribe`, `Remote`, and `DefaultConfig` are never constructed
[INFO] [stdout]   --> src/message.rs:58:2
[INFO] [stdout]    |
[INFO] [stdout] 55 | enum MessageType {
[INFO] [stdout]    |      ----------- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 58 |     Publish = 3,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 59 |     Edit = 4,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 60 |     Unsubscribe = 5,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 61 |     Remote = 6,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 62 |     DefaultConfig = 7,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 05s
[INFO] running `Command { std: "docker" "inspect" "3990fbf6d355c8e484d8c08c224f8b40b2b9a41749909d278d7d9f848345b3cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3990fbf6d355c8e484d8c08c224f8b40b2b9a41749909d278d7d9f848345b3cb", kill_on_drop: false }`
[INFO] [stdout] 3990fbf6d355c8e484d8c08c224f8b40b2b9a41749909d278d7d9f848345b3cb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bb616db464d437d9b3660be81e8e3e52c3571593047e6ad940316dcaf2ef0208
[INFO] running `Command { std: "docker" "start" "-a" "bb616db464d437d9b3660be81e8e3e52c3571593047e6ad940316dcaf2ef0208", kill_on_drop: false }`
[INFO] [stdout] warning: unused import: `cell::Cell`
[INFO] [stdout]  --> src/context.rs:2:11
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::{cell::Cell, collections::HashMap};
[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: `futures::Future`
[INFO] [stdout]  --> src/context.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use futures::Future;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `RwLock`
[INFO] [stdout]   --> src/context.rs:10:25
[INFO] [stdout]    |
[INFO] [stdout] 10 | use tokio::sync::{mpsc, RwLock, Mutex};
[INFO] [stdout]    |                         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `futures::Future`
[INFO] [stdout]  --> src/subscription.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use futures::Future;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `serde::Serialize`
[INFO] [stdout]  --> src/subscription.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use serde::Serialize;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Visitor`
[INFO] [stdout]  --> src/message.rs:1:42
[INFO] [stdout]   |
[INFO] [stdout] 1 | use serde::{Serialize, Deserialize, de::{Visitor, Error}};
[INFO] [stdout]   |                                          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `serde_json::json`
[INFO] [stdout]   --> src/lib.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use serde_json::json;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `RwLock`
[INFO] [stdout]   --> src/lib.rs:11:34
[INFO] [stdout]    |
[INFO] [stdout] 11 | use tokio::sync::{mpsc::channel, RwLock};
[INFO] [stdout]    |                                  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lib.rs:16:76
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub async fn connect_socket(project_id: &'static str, token: &'static str, mut events: impl Events) {
[INFO] [stdout]    |                                                                            ----^^^^^^
[INFO] [stdout]    |                                                                            |
[INFO] [stdout]    |                                                                            help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `val`
[INFO] [stdout]   --> src/message.rs:49:7
[INFO] [stdout]    |
[INFO] [stdout] 49 |         let val = serde_json::Value::deserialize(deserializer)?.as_array().unwrap_or(Err(Error::custom("not an array"))?);
[INFO] [stdout]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_val`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `hash` and `filter` are never read
[INFO] [stdout]   --> src/subscription.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub(crate) struct Subscription {
[INFO] [stdout]    |                   ------------ fields in this struct
[INFO] [stdout] 12 |     pub hash: i64,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 13 |     pub callback: Arc<Box<dyn Subscriber + 'static + Send + Sync>>,
[INFO] [stdout] 14 |     pub filter: Value,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Publish`, `Edit`, `Unsubscribe`, `Remote`, and `DefaultConfig` are never constructed
[INFO] [stdout]   --> src/message.rs:58:2
[INFO] [stdout]    |
[INFO] [stdout] 55 | enum MessageType {
[INFO] [stdout]    |      ----------- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 58 |     Publish = 3,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 59 |     Edit = 4,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 60 |     Unsubscribe = 5,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 61 |     Remote = 6,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 62 |     DefaultConfig = 7,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling simplesocket v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `cell::Cell`
[INFO] [stdout]  --> src/context.rs:2:11
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::{cell::Cell, collections::HashMap};
[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: `futures::Future`
[INFO] [stdout]  --> src/context.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use futures::Future;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `RwLock`
[INFO] [stdout]   --> src/context.rs:10:25
[INFO] [stdout]    |
[INFO] [stdout] 10 | use tokio::sync::{mpsc, RwLock, Mutex};
[INFO] [stdout]    |                         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `futures::Future`
[INFO] [stdout]  --> src/subscription.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use futures::Future;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `serde::Serialize`
[INFO] [stdout]  --> src/subscription.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use serde::Serialize;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Visitor`
[INFO] [stdout]  --> src/message.rs:1:42
[INFO] [stdout]   |
[INFO] [stdout] 1 | use serde::{Serialize, Deserialize, de::{Visitor, Error}};
[INFO] [stdout]   |                                          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `serde_json::json`
[INFO] [stdout]   --> src/lib.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use serde_json::json;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `RwLock`
[INFO] [stdout]   --> src/lib.rs:11:34
[INFO] [stdout]    |
[INFO] [stdout] 11 | use tokio::sync::{mpsc::channel, RwLock};
[INFO] [stdout]    |                                  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lib.rs:16:76
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub async fn connect_socket(project_id: &'static str, token: &'static str, mut events: impl Events) {
[INFO] [stdout]    |                                                                            ----^^^^^^
[INFO] [stdout]    |                                                                            |
[INFO] [stdout]    |                                                                            help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `val`
[INFO] [stdout]   --> src/message.rs:49:7
[INFO] [stdout]    |
[INFO] [stdout] 49 |         let val = serde_json::Value::deserialize(deserializer)?.as_array().unwrap_or(Err(Error::custom("not an array"))?);
[INFO] [stdout]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_val`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `hash` and `filter` are never read
[INFO] [stdout]   --> src/subscription.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub(crate) struct Subscription {
[INFO] [stdout]    |                   ------------ fields in this struct
[INFO] [stdout] 12 |     pub hash: i64,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 13 |     pub callback: Arc<Box<dyn Subscriber + 'static + Send + Sync>>,
[INFO] [stdout] 14 |     pub filter: Value,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Publish`, `Edit`, `Unsubscribe`, `Remote`, and `DefaultConfig` are never constructed
[INFO] [stdout]   --> src/message.rs:58:2
[INFO] [stdout]    |
[INFO] [stdout] 55 | enum MessageType {
[INFO] [stdout]    |      ----------- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 58 |     Publish = 3,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 59 |     Edit = 4,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 60 |     Unsubscribe = 5,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 61 |     Remote = 6,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 62 |     DefaultConfig = 7,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.09s
[INFO] running `Command { std: "docker" "inspect" "bb616db464d437d9b3660be81e8e3e52c3571593047e6ad940316dcaf2ef0208", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb616db464d437d9b3660be81e8e3e52c3571593047e6ad940316dcaf2ef0208", kill_on_drop: false }`
[INFO] [stdout] bb616db464d437d9b3660be81e8e3e52c3571593047e6ad940316dcaf2ef0208
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1c98168833627082c5b55ac68e9fca14c9e71ff47a4a14a03a4c7e98aa348f9b
[INFO] running `Command { std: "docker" "start" "-a" "1c98168833627082c5b55ac68e9fca14c9e71ff47a4a14a03a4c7e98aa348f9b", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `cell::Cell`
[INFO] [stderr]  --> src/context.rs:2:11
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::{cell::Cell, collections::HashMap};
[INFO] [stderr]   |           ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `futures::Future`
[INFO] [stderr]  --> src/context.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use futures::Future;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `RwLock`
[INFO] [stderr]   --> src/context.rs:10:25
[INFO] [stderr]    |
[INFO] [stderr] 10 | use tokio::sync::{mpsc, RwLock, Mutex};
[INFO] [stderr]    |                         ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `futures::Future`
[INFO] [stderr]  --> src/subscription.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use futures::Future;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `serde::Serialize`
[INFO] [stderr]  --> src/subscription.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use serde::Serialize;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Visitor`
[INFO] [stderr]  --> src/message.rs:1:42
[INFO] [stderr]   |
[INFO] [stderr] 1 | use serde::{Serialize, Deserialize, de::{Visitor, Error}};
[INFO] [stderr]   |                                          ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `serde_json::json`
[INFO] [stderr]   --> src/lib.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use serde_json::json;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `RwLock`
[INFO] [stderr]   --> src/lib.rs:11:34
[INFO] [stderr]    |
[INFO] [stderr] 11 | use tokio::sync::{mpsc::channel, RwLock};
[INFO] [stderr]    |                                  ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/lib.rs:16:76
[INFO] [stderr]    |
[INFO] [stderr] 16 | pub async fn connect_socket(project_id: &'static str, token: &'static str, mut events: impl Events) {
[INFO] [stderr]    |                                                                            ----^^^^^^
[INFO] [stderr]    |                                                                            |
[INFO] [stderr]    |                                                                            help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `val`
[INFO] [stderr]   --> src/message.rs:49:7
[INFO] [stderr]    |
[INFO] [stderr] 49 |         let val = serde_json::Value::deserialize(deserializer)?.as_array().unwrap_or(Err(Error::custom("not an array"))?);
[INFO] [stderr]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_val`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: fields `hash` and `filter` are never read
[INFO] [stderr]   --> src/subscription.rs:12:9
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub(crate) struct Subscription {
[INFO] [stderr]    |                   ------------ fields in this struct
[INFO] [stderr] 12 |     pub hash: i64,
[INFO] [stderr]    |         ^^^^
[INFO] [stderr] 13 |     pub callback: Arc<Box<dyn Subscriber + 'static + Send + Sync>>,
[INFO] [stderr] 14 |     pub filter: Value,
[INFO] [stderr]    |         ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variants `Publish`, `Edit`, `Unsubscribe`, `Remote`, and `DefaultConfig` are never constructed
[INFO] [stderr]   --> src/message.rs:58:2
[INFO] [stderr]    |
[INFO] [stderr] 55 | enum MessageType {
[INFO] [stderr]    |      ----------- variants in this enum
[INFO] [stderr] ...
[INFO] [stderr] 58 |     Publish = 3,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 59 |     Edit = 4,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 60 |     Unsubscribe = 5,
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 61 |     Remote = 6,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 62 |     DefaultConfig = 7,
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `simplesocket` (lib) generated 12 warnings (run `cargo fix --lib -p simplesocket` to apply 10 suggestions)
[INFO] [stderr] warning: `simplesocket` (lib test) generated 12 warnings (12 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.24s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/simplesocket-b7b937df3179c7d1)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test context::test_hash ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests simplesocket
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "1c98168833627082c5b55ac68e9fca14c9e71ff47a4a14a03a4c7e98aa348f9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c98168833627082c5b55ac68e9fca14c9e71ff47a4a14a03a4c7e98aa348f9b", kill_on_drop: false }`
[INFO] [stdout] 1c98168833627082c5b55ac68e9fca14c9e71ff47a4a14a03a4c7e98aa348f9b
