[INFO] fetching crate cdns-rs 0.2.2...
[INFO] checking cdns-rs-0.2.2 against master#e59540968e0c6fc3c37d92a639b83fc8fcee5e81 for pr-114559
[INFO] extracting crate cdns-rs 0.2.2 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate cdns-rs 0.2.2 on toolchain e59540968e0c6fc3c37d92a639b83fc8fcee5e81
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e59540968e0c6fc3c37d92a639b83fc8fcee5e81" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cdns-rs 0.2.2
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate cdns-rs 0.2.2
[INFO] tweaked toml for crates.io crate cdns-rs 0.2.2 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate crates.io crate cdns-rs 0.2.2 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" "+e59540968e0c6fc3c37d92a639b83fc8fcee5e81" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded async-recursion v0.3.2
[INFO] [stderr]   Downloaded async-stream v0.3.2
[INFO] [stderr]   Downloaded futures-core v0.3.19
[INFO] [stderr]   Downloaded async-stream-impl v0.3.2
[INFO] [stderr]   Downloaded async-trait v0.1.52
[INFO] [stderr]   Downloaded tokio-stream v0.1.8
[INFO] [stderr]   Downloaded nix v0.23.1
[INFO] [stderr]   Downloaded tokio v1.15.0
[INFO] [stderr]   Downloaded tokio-byteorder v0.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:5c16f4e6c37141f9fef0bc86f7a492d732943053e42aab8461035881e3f53823" "/opt/rustwide/cargo-home/bin/cargo" "+e59540968e0c6fc3c37d92a639b83fc8fcee5e81" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 55b9daad02af371bb5c5f7d66ae691a1a6a41817535f8a7bdfb35096158e810f
[INFO] running `Command { std: "docker" "start" "-a" "55b9daad02af371bb5c5f7d66ae691a1a6a41817535f8a7bdfb35096158e810f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "55b9daad02af371bb5c5f7d66ae691a1a6a41817535f8a7bdfb35096158e810f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "55b9daad02af371bb5c5f7d66ae691a1a6a41817535f8a7bdfb35096158e810f", kill_on_drop: false }`
[INFO] [stdout] 55b9daad02af371bb5c5f7d66ae691a1a6a41817535f8a7bdfb35096158e810f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:5c16f4e6c37141f9fef0bc86f7a492d732943053e42aab8461035881e3f53823" "/opt/rustwide/cargo-home/bin/cargo" "+e59540968e0c6fc3c37d92a639b83fc8fcee5e81" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 67987055143c2def1a81e41ad8ef2b221b3aa93971acd0869087891fe961964d
[INFO] running `Command { std: "docker" "start" "-a" "67987055143c2def1a81e41ad8ef2b221b3aa93971acd0869087891fe961964d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.112
[INFO] [stderr]    Compiling syn v1.0.85
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking pin-project-lite v0.2.8
[INFO] [stderr]     Checking bytes v1.1.0
[INFO] [stderr]    Compiling futures-core v0.3.19
[INFO] [stderr]    Compiling quote v1.0.14
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling async-trait v0.1.52
[INFO] [stderr]    Compiling crossbeam-utils v0.8.6
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking mio v0.7.14
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking socket2 v0.4.2
[INFO] [stderr]     Checking nix v0.23.1
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]    Compiling tokio-macros v1.7.0
[INFO] [stderr]    Compiling async-stream-impl v0.3.2
[INFO] [stderr]    Compiling async-recursion v0.3.2
[INFO] [stderr]     Checking async-stream v0.3.2
[INFO] [stderr]     Checking tokio v1.15.0
[INFO] [stderr]     Checking tokio-byteorder v0.3.0
[INFO] [stderr]     Checking tokio-stream v0.1.8
[INFO] [stderr]     Checking cdns-rs v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking tokio-test v0.4.2
[INFO] [stdout] warning: unused import: `sync::atomic::AtomicUsize`
[INFO] [stdout]   --> src/sync/cfg_parsers.rs:14:21
[INFO] [stdout]    |
[INFO] [stdout] 14 | use std::{io::Read, sync::atomic::AtomicUsize};
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tokio::sync::Mutex`
[INFO] [stdout]   --> src/a_sync/cfg_parsers.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | use tokio::sync::Mutex;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ROUND_ROBIN_CNT`, `ResolveConfEntry`, `RoundRobinIterator`
[INFO] [stdout]   --> src/a_sync/cfg_resolv_parser.rs:19:60
[INFO] [stdout]    |
[INFO] [stdout] 19 | use crate::cfg_resolv_parser::{ResolveConfig, OptionFlags, ResolveConfEntry, RoundRobinIterator, ROUND_ROBIN_CNT};
[INFO] [stdout]    |                                                            ^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tokio::sync::Mutex`
[INFO] [stdout]   --> src/a_sync/network.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | use tokio::sync::Mutex;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sync::Arc`
[INFO] [stdout]   --> src/a_sync/query_async_taps.rs:11:11
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::{sync::Arc};
[INFO] [stdout]    |           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `SocketTap`
[INFO] [stdout]   --> src/a_sync/query_async_taps.rs:13:23
[INFO] [stdout]    |
[INFO] [stdout] 13 | use super::{network::{SocketTap, NetworkTapType}, common::DnsRequestHeader};
[INFO] [stdout]    |                       ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `internal_error`
[INFO] [stdout]   --> src/tokenizer.rs:16:13
[INFO] [stdout]    |
[INFO] [stdout] 16 | use crate::{internal_error, internal_error_map, error::*};
[INFO] [stdout]    |             ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sync::atomic::AtomicUsize`
[INFO] [stdout]   --> src/sync/cfg_parsers.rs:14:21
[INFO] [stdout]    |
[INFO] [stdout] 14 | use std::{io::Read, sync::atomic::AtomicUsize};
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tokio::sync::Mutex`
[INFO] [stdout]   --> src/a_sync/cfg_parsers.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | use tokio::sync::Mutex;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ROUND_ROBIN_CNT`, `ResolveConfEntry`, `RoundRobinIterator`
[INFO] [stdout]   --> src/a_sync/cfg_resolv_parser.rs:19:60
[INFO] [stdout]    |
[INFO] [stdout] 19 | use crate::cfg_resolv_parser::{ResolveConfig, OptionFlags, ResolveConfEntry, RoundRobinIterator, ROUND_ROBIN_CNT};
[INFO] [stdout]    |                                                            ^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tokio::sync::Mutex`
[INFO] [stdout]   --> src/a_sync/network.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | use tokio::sync::Mutex;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sync::Arc`
[INFO] [stdout]   --> src/a_sync/query_async_taps.rs:11:11
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::{sync::Arc};
[INFO] [stdout]    |           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `SocketTap`
[INFO] [stdout]   --> src/a_sync/query_async_taps.rs:13:23
[INFO] [stdout]    |
[INFO] [stdout] 13 | use super::{network::{SocketTap, NetworkTapType}, common::DnsRequestHeader};
[INFO] [stdout]    |                       ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `internal_error`
[INFO] [stdout]   --> src/tokenizer.rs:16:13
[INFO] [stdout]    |
[INFO] [stdout] 16 | use crate::{internal_error, internal_error_map, error::*};
[INFO] [stdout]    |             ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/a_sync/caches.rs:48:8
[INFO] [stdout]    |
[INFO] [stdout] 45 | impl<'cache> CacheTime<'cache>
[INFO] [stdout]    | ------------------------------ associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 48 |     fn new(path: &'cache Path) -> CDnsResult<CacheTime<'cache>>
[INFO] [stdout]    |        ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/a_sync/caches.rs:113:8
[INFO] [stdout]     |
[INFO] [stdout] 110 | impl<T: Default + ConfigParser<T> + CacheOperations> CacheInstance<T>
[INFO] [stdout]     | --------------------------------------------------------------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 113 |     fn new() -> CDnsResult<Self>
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `foresee_char` is never used
[INFO] [stdout]   --> src/tokenizer.rs:62:8
[INFO] [stdout]    |
[INFO] [stdout] 26 | impl<'token> ConfTokenizer<'token>
[INFO] [stdout]    | ---------------------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 62 |     fn foresee_char(&mut self) -> Option<char>
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/sync/query.rs:809:25
[INFO] [stdout]     |
[INFO] [stdout] 809 |                         drop(req);
[INFO] [stdout]     |                         ^^^^^---^
[INFO] [stdout]     |                              |
[INFO] [stdout]     |                              argument has type `&common::DnsRequestHeader`
[INFO] [stdout]     |
[INFO] [stdout]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     = note: `#[warn(dropping_references)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/a_sync/caches.rs:48:8
[INFO] [stdout]    |
[INFO] [stdout] 45 | impl<'cache> CacheTime<'cache>
[INFO] [stdout]    | ------------------------------ associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 48 |     fn new(path: &'cache Path) -> CDnsResult<CacheTime<'cache>>
[INFO] [stdout]    |        ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/a_sync/caches.rs:113:8
[INFO] [stdout]     |
[INFO] [stdout] 110 | impl<T: Default + ConfigParser<T> + CacheOperations> CacheInstance<T>
[INFO] [stdout]     | --------------------------------------------------------------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 113 |     fn new() -> CDnsResult<Self>
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `foresee_char` is never used
[INFO] [stdout]   --> src/tokenizer.rs:62:8
[INFO] [stdout]    |
[INFO] [stdout] 26 | impl<'token> ConfTokenizer<'token>
[INFO] [stdout]    | ---------------------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 62 |     fn foresee_char(&mut self) -> Option<char>
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/sync/query.rs:809:25
[INFO] [stdout]     |
[INFO] [stdout] 809 |                         drop(req);
[INFO] [stdout]     |                         ^^^^^---^
[INFO] [stdout]     |                              |
[INFO] [stdout]     |                              argument has type `&common::DnsRequestHeader`
[INFO] [stdout]     |
[INFO] [stdout]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     = note: `#[warn(dropping_references)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.02s
[INFO] running `Command { std: "docker" "inspect" "67987055143c2def1a81e41ad8ef2b221b3aa93971acd0869087891fe961964d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "67987055143c2def1a81e41ad8ef2b221b3aa93971acd0869087891fe961964d", kill_on_drop: false }`
[INFO] [stdout] 67987055143c2def1a81e41ad8ef2b221b3aa93971acd0869087891fe961964d
