[INFO] fetching crate discovery_rust 0.1.1...
[INFO] checking discovery_rust-0.1.1 against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] extracting crate discovery_rust 0.1.1 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate discovery_rust 0.1.1 on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate discovery_rust 0.1.1
[INFO] finished tweaking crates.io crate discovery_rust 0.1.1
[INFO] tweaked toml for crates.io crate discovery_rust 0.1.1 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d2a57771d9146e998982918b48be40e81b8565d6d7b5de68681e16124cf985f3
[INFO] running `"docker" "start" "-a" "d2a57771d9146e998982918b48be40e81b8565d6d7b5de68681e16124cf985f3"`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]     Checking tokio-core v0.1.17
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]     Checking tokio-proto v0.1.1
[INFO] [stderr]     Checking hyper v0.11.27
[INFO] [stderr]     Checking consul_rust v0.1.0
[INFO] [stderr]     Checking discovery_rust v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]  --> src/lib.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::collections::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Write`, `self`
[INFO] [stderr]  --> src/core/diplomat.rs:9:15
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::io::{self, Write};
[INFO] [stderr]   |               ^^^^  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::iter::FromIterator`
[INFO] [stderr]   --> src/core/diplomat.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use std::iter::FromIterator;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Host`
[INFO] [stderr]   --> src/core/diplomat.rs:11:11
[INFO] [stderr]    |
[INFO] [stderr] 11 | use url::{Host, Url};
[INFO] [stderr]    |           ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]  --> src/lib.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::collections::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Write`, `self`
[INFO] [stderr]  --> src/core/diplomat.rs:9:15
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::io::{self, Write};
[INFO] [stderr]   |               ^^^^  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::iter::FromIterator`
[INFO] [stderr]   --> src/core/diplomat.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use std::iter::FromIterator;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Host`
[INFO] [stderr]   --> src/core/diplomat.rs:11:11
[INFO] [stderr]    |
[INFO] [stderr] 11 | use url::{Host, Url};
[INFO] [stderr]    |           ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/core/diplomat.rs:158:17
[INFO] [stderr]     |
[INFO] [stderr] 158 |                 _ => {  // default choose the first item
[INFO] [stderr]     |                 ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `refresh`
[INFO] [stderr]   --> src/core/diplomat.rs:99:47
[INFO] [stderr]    |
[INFO] [stderr] 99 |     fn health_with_cache(&self, name: String, refresh: bool, cfg: ConsulConfig) -> Vec<ServiceEntry> {
[INFO] [stderr]    |                                               ^^^^^^^ help: consider prefixing with an underscore: `_refresh`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/core/diplomat.rs:50:13
[INFO] [stderr]    |
[INFO] [stderr] 50 |         let mut discovery_uri: String;
[INFO] [stderr]    |             ----^^^^^^^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `cache_ttl`
[INFO] [stderr]   --> src/core/diplomat.rs:32:5
[INFO] [stderr]    |
[INFO] [stderr] 32 |     cache_ttl: u16,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/core/diplomat.rs:158:17
[INFO] [stderr]     |
[INFO] [stderr] 158 |                 _ => {  // default choose the first item
[INFO] [stderr]     |                 ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `refresh`
[INFO] [stderr]   --> src/core/diplomat.rs:99:47
[INFO] [stderr]    |
[INFO] [stderr] 99 |     fn health_with_cache(&self, name: String, refresh: bool, cfg: ConsulConfig) -> Vec<ServiceEntry> {
[INFO] [stderr]    |                                               ^^^^^^^ help: consider prefixing with an underscore: `_refresh`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/core/diplomat.rs:50:13
[INFO] [stderr]    |
[INFO] [stderr] 50 |         let mut discovery_uri: String;
[INFO] [stderr]    |             ----^^^^^^^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `cache_ttl`
[INFO] [stderr]   --> src/core/diplomat.rs:32:5
[INFO] [stderr]    |
[INFO] [stderr] 32 |     cache_ttl: u16,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.24s
[INFO] running `"docker" "inspect" "d2a57771d9146e998982918b48be40e81b8565d6d7b5de68681e16124cf985f3"`
[INFO] running `"docker" "rm" "-f" "d2a57771d9146e998982918b48be40e81b8565d6d7b5de68681e16124cf985f3"`
[INFO] [stdout] d2a57771d9146e998982918b48be40e81b8565d6d7b5de68681e16124cf985f3