[INFO] fetching crate cakerabbit-core 0.1.0...
[INFO] checking cakerabbit-core-0.1.0 against 1.55.0 for beta-1.56-3
[INFO] extracting crate cakerabbit-core 0.1.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate cakerabbit-core 0.1.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cakerabbit-core 0.1.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate cakerabbit-core 0.1.0
[INFO] tweaked toml for crates.io crate cakerabbit-core 0.1.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate cakerabbit-core 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded local_ipaddress v0.1.3
[INFO] [stderr]   Downloaded consul-rs-plus v0.1.6
[INFO] [stderr]   Downloaded rmpv v0.4.7
[INFO] running `Command { std: "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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 112cff7e9d275e4dae6a48bf08f017fbc6c0bccab91abc76e81355a0432ae83c
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "112cff7e9d275e4dae6a48bf08f017fbc6c0bccab91abc76e81355a0432ae83c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "112cff7e9d275e4dae6a48bf08f017fbc6c0bccab91abc76e81355a0432ae83c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "112cff7e9d275e4dae6a48bf08f017fbc6c0bccab91abc76e81355a0432ae83c", kill_on_drop: false }`
[INFO] [stdout] 112cff7e9d275e4dae6a48bf08f017fbc6c0bccab91abc76e81355a0432ae83c
[INFO] running `Command { std: "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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 06a5d6c080fba353e60db2e06537a5b090b2654594a34c2e0f4d4cfc4d5eaf5e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "06a5d6c080fba353e60db2e06537a5b090b2654594a34c2e0f4d4cfc4d5eaf5e", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.75
[INFO] [stderr]    Compiling serde_json v1.0.67
[INFO] [stderr]     Checking local_ipaddress v0.1.3
[INFO] [stderr]    Compiling futures-util v0.3.17
[INFO] [stderr]    Compiling tokio v1.10.1
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[INFO] [stderr]     Checking net2 v0.2.37
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[INFO] [stderr]     Checking tokio-timer v0.2.13
[INFO] [stderr]     Checking chrono v0.4.19
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[INFO] [stderr]    Compiling synstructure v0.12.5
[INFO] [stderr]     Checking hyper-tls v0.3.2
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling futures-macro v0.3.17
[INFO] [stderr]    Compiling tokio-macros v1.3.0
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking tokio-util v0.6.7
[INFO] [stderr]     Checking serde v1.0.130
[INFO] [stderr]     Checking futures-executor v0.3.17
[INFO] [stderr]     Checking futures v0.3.17
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[INFO] [stderr]     Checking cookie_store v0.7.0
[INFO] [stderr]     Checking reqwest v0.9.24
[INFO] [stderr]     Checking consul-rs-plus v0.1.6
[INFO] [stderr]     Checking cakerabbit-core v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(test)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `FutureExt`, `Sink`, `Stream`, `ready`
[INFO] [stdout]  --> src/cakeservice.rs:6:31
[INFO] [stdout]   |
[INFO] [stdout] 6 | use futures::{Future, future, FutureExt, ready, Sink, Stream, TryFutureExt};
[INFO] [stdout]   |                               ^^^^^^^^^  ^^^^^  ^^^^  ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `TcpStream`
[INFO] [stdout]  --> src/cakeservice.rs:8:31
[INFO] [stdout]   |
[INFO] [stdout] 8 | use tokio::net::{TcpListener, TcpStream};
[INFO] [stdout]   |                               ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `distributions::uniform`
[INFO] [stdout]  --> src/selector.rs:3:13
[INFO] [stdout]   |
[INFO] [stdout] 3 | use rand::{ distributions::uniform, Rng };
[INFO] [stdout]   |             ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `distributions::uniform`
[INFO] [stdout]    --> src/selector.rs:100:15
[INFO] [stdout]     |
[INFO] [stdout] 100 |   use rand::{ distributions::uniform, Rng };
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Failover`, `Failtry`, `Response`
[INFO] [stdout]  --> src/cakeclient.rs:2:26
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::{SelectorTyp, Response, Client, Register, new_selector, CakeError, CakeResult,
[INFO] [stdout]   |                          ^^^^^^^^
[INFO] [stdout] 3 |             Failover, Failtry};
[INFO] [stdout]   |             ^^^^^^^^  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io`
[INFO] [stdout]  --> src/cakeclient.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::io;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::sync::Arc`
[INFO] [stdout]  --> src/cakeclient.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::sync::Arc;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `env_logger::from_env`: Prefer `env_logger::Builder::from_env()` instead.
[INFO] [stdout]   --> src/reg.rs:53:15
[INFO] [stdout]    |
[INFO] [stdout] 53 |   env_logger::from_env(Env::default().default_filter_or("info")).init();
[INFO] [stdout]    |               ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(test)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `FutureExt`, `Sink`, `Stream`, `ready`
[INFO] [stdout]  --> src/cakeservice.rs:6:31
[INFO] [stdout]   |
[INFO] [stdout] 6 | use futures::{Future, future, FutureExt, ready, Sink, Stream, TryFutureExt};
[INFO] [stdout]   |                               ^^^^^^^^^  ^^^^^  ^^^^  ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `TcpStream`
[INFO] [stdout]  --> src/cakeservice.rs:8:31
[INFO] [stdout]   |
[INFO] [stdout] 8 | use tokio::net::{TcpListener, TcpStream};
[INFO] [stdout]   |                               ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `env_logger::Env`
[INFO] [stdout]  --> src/reg.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use env_logger::Env;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `distributions::uniform`
[INFO] [stdout]  --> src/selector.rs:3:13
[INFO] [stdout]   |
[INFO] [stdout] 3 | use rand::{ distributions::uniform, Rng };
[INFO] [stdout]   |             ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Rng`, `distributions::uniform`
[INFO] [stdout]    --> src/selector.rs:100:15
[INFO] [stdout]     |
[INFO] [stdout] 100 |   use rand::{ distributions::uniform, Rng };
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^^^  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rand::distributions::Uniform`
[INFO] [stdout]    --> src/selector.rs:101:7
[INFO] [stdout]     |
[INFO] [stdout] 101 |   use rand::distributions::Uniform;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]    --> src/selector.rs:102:7
[INFO] [stdout]     |
[INFO] [stdout] 102 |   use super::*;
[INFO] [stdout]     |       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::time`
[INFO] [stdout]    --> src/selector.rs:103:7
[INFO] [stdout]     |
[INFO] [stdout] 103 |   use std::time;
[INFO] [stdout]     |       ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::thread`
[INFO] [stdout]    --> src/selector.rs:104:7
[INFO] [stdout]     |
[INFO] [stdout] 104 |   use std::thread;
[INFO] [stdout]     |       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Failover`, `Failtry`, `Response`
[INFO] [stdout]  --> src/cakeclient.rs:2:26
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::{SelectorTyp, Response, Client, Register, new_selector, CakeError, CakeResult,
[INFO] [stdout]   |                          ^^^^^^^^
[INFO] [stdout] 3 |             Failover, Failtry};
[INFO] [stdout]   |             ^^^^^^^^  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io`
[INFO] [stdout]  --> src/cakeclient.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::io;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::sync::Arc`
[INFO] [stdout]  --> src/cakeclient.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::sync::Arc;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/cakeclient.rs:70:9
[INFO] [stdout]    |
[INFO] [stdout] 70 |     let mut reg = Register::new_for_client((&self.reg_typ).to_string(),
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/cakeclient.rs:70:9
[INFO] [stdout]    |
[INFO] [stdout] 70 |     let mut reg = Register::new_for_client((&self.reg_typ).to_string(),
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `RegisterImpl`
[INFO] [stdout]   --> src/cakeservice.rs:12:29
[INFO] [stdout]    |
[INFO] [stdout] 12 | use crate::reg::{ Register, RegisterImpl };
[INFO] [stdout]    |                             ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cakerabbit-core` due to 2 previous errors; 14 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0599]: no function or associated item named `new` found for struct `Register` in the current scope
[INFO] [stdout]   --> src/reg.rs:54:27
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct Register {
[INFO] [stdout]    | ------------------- function or associated item `new` not found for this
[INFO] [stdout] ...
[INFO] [stdout] 54 |   let mut reg = Register::new("consul", "8.8.8.8:8500",
[INFO] [stdout]    |                           ^^^ function or associated item not found in `Register`
[INFO] [stdout]    |
[INFO] [stdout]    = help: items from traits can only be used if the trait is implemented and in scope
[INFO] [stdout]    = note: the following traits define an item `new`, perhaps you need to implement one of them:
[INFO] [stdout]            candidate #1: `gimli::read::lookup::PubStuffEntry`
[INFO] [stdout]            candidate #2: `parking_lot_core::thread_parker::ThreadParkerT`
[INFO] [stdout]            candidate #3: `rand::distributions::uniform::UniformSampler`
[INFO] [stdout]            candidate #4: `UniformSampler`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `RegisterImpl`
[INFO] [stdout]   --> src/cakeservice.rs:12:29
[INFO] [stdout]    |
[INFO] [stdout] 12 | use crate::reg::{ Register, RegisterImpl };
[INFO] [stdout]    |                             ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "06a5d6c080fba353e60db2e06537a5b090b2654594a34c2e0f4d4cfc4d5eaf5e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06a5d6c080fba353e60db2e06537a5b090b2654594a34c2e0f4d4cfc4d5eaf5e", kill_on_drop: false }`
[INFO] [stdout] 06a5d6c080fba353e60db2e06537a5b090b2654594a34c2e0f4d4cfc4d5eaf5e
