[INFO] fetching crate romp 0.4.7...
[INFO] checking romp-0.4.7 against try#13f916f63bc6575d5ff1f989237dfabe88981368 for pr-69880
[INFO] extracting crate romp 0.4.7 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate romp 0.4.7 on toolchain 13f916f63bc6575d5ff1f989237dfabe88981368
[INFO] running `"/workspace/cargo-home/bin/cargo" "+13f916f63bc6575d5ff1f989237dfabe88981368" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate romp 0.4.7
[INFO] finished tweaking crates.io crate romp 0.4.7
[INFO] tweaked toml for crates.io crate romp 0.4.7 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate romp 0.4.7 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+13f916f63bc6575d5ff1f989237dfabe88981368" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+13f916f63bc6575d5ff1f989237dfabe88981368" "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] 78a76bbfb1cbed9453a4a64e23e8eb84e3d5fadc5a2ad7e8e64a7a7b3640df0c
[INFO] running `"docker" "start" "-a" "78a76bbfb1cbed9453a4a64e23e8eb84e3d5fadc5a2ad7e8e64a7a7b3640df0c"`
[INFO] [stderr]     Checking base16 v0.2.1
[INFO] [stderr]     Checking totems v0.2.7
[INFO] [stderr]     Checking sanename v0.1.1
[INFO] [stderr]     Checking mio v0.6.21
[INFO] [stderr]     Checking serde_json v1.0.45
[INFO] [stderr]     Checking tokio-io v0.1.12
[INFO] [stderr]     Checking parking_lot_core v0.2.14
[INFO] [stderr]    Compiling syn v1.0.14
[INFO] [stderr]     Checking serde-value v0.5.3
[INFO] [stderr]     Checking sha2 v0.8.1
[INFO] [stderr]     Checking tokio-threadpool v0.1.17
[INFO] [stderr]     Checking parking_lot v0.4.8
[INFO] [stderr]     Checking tokio-codec v0.1.1
[INFO] [stderr]     Checking tokio-fs v0.1.6
[INFO] [stderr]     Checking chashmap v2.2.2
[INFO] [stderr]     Checking tokio-reactor v0.1.11
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]     Checking tokio-tcp v0.1.3
[INFO] [stderr]     Checking tokio-udp v0.1.5
[INFO] [stderr]     Checking tokio-uds v0.2.5
[INFO] [stderr]     Checking tokio-signal v0.2.7
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]     Checking log4rs v0.8.3
[INFO] [stderr]     Checking romp v0.4.7 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused imports: `AtomicUsize`, `Ordering`
[INFO] [stderr]   --> src/downstream.rs:10:25
[INFO] [stderr]    |
[INFO] [stderr] 10 | use std::sync::atomic::{AtomicUsize, Ordering};
[INFO] [stderr]    |                         ^^^^^^^^^^^  ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::init::SERVER`
[INFO] [stderr]   --> src/downstream.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 | use crate::init::SERVER;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::util::some_string`
[INFO] [stderr]   --> src/downstream.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 25 | use crate::util::some_string;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::message::response::get_http_ok_msg`
[INFO] [stderr]  --> src/workflow/console/filter.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use crate::message::response::get_http_ok_msg;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `AtomicPtr`
[INFO] [stderr]  --> src/workflow/console/ngin.rs:7:25
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::sync::atomic::{AtomicPtr, AtomicUsize, AtomicI64, Ordering};
[INFO] [stderr]   |                         ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::config::config::Downstream`
[INFO] [stderr]  --> src/workflow/context.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use crate::config::config::Downstream;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `AtomicUsize`, `Ordering`
[INFO] [stderr]   --> src/downstream.rs:10:25
[INFO] [stderr]    |
[INFO] [stderr] 10 | use std::sync::atomic::{AtomicUsize, Ordering};
[INFO] [stderr]    |                         ^^^^^^^^^^^  ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::init::SERVER`
[INFO] [stderr]   --> src/downstream.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 | use crate::init::SERVER;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::util::some_string`
[INFO] [stderr]   --> src/downstream.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 25 | use crate::util::some_string;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::message::response::get_http_ok_msg`
[INFO] [stderr]  --> src/workflow/console/filter.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use crate::message::response::get_http_ok_msg;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `AtomicPtr`
[INFO] [stderr]  --> src/workflow/console/ngin.rs:7:25
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::sync::atomic::{AtomicPtr, AtomicUsize, AtomicI64, Ordering};
[INFO] [stderr]   |                         ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::config::config::Downstream`
[INFO] [stderr]  --> src/workflow/context.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use crate::config::config::Downstream;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `id`
[INFO] [stderr]   --> src/downstream.rs:65:85
[INFO] [stderr]    |
[INFO] [stderr] 65 |     pub(crate) fn session_shutdown(&self, myself: Arc<RwLock<DownstreamConnector>>, id: usize, flags: u64) {
[INFO] [stderr]    |                                                                                     ^^ help: consider prefixing with an underscore: `_id`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `flags`
[INFO] [stderr]   --> src/downstream.rs:65:96
[INFO] [stderr]    |
[INFO] [stderr] 65 |     pub(crate) fn session_shutdown(&self, myself: Arc<RwLock<DownstreamConnector>>, id: usize, flags: u64) {
[INFO] [stderr]    |                                                                                                ^^^^^ help: consider prefixing with an underscore: `_flags`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `login`
[INFO] [stderr]   --> src/message/request.rs:10:17
[INFO] [stderr]    |
[INFO] [stderr] 10 |     if let Some(login) = &downstream.login {
[INFO] [stderr]    |                 ^^^^^ help: consider prefixing with an underscore: `_login`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `login`
[INFO] [stderr]   --> src/message/request.rs:32:17
[INFO] [stderr]    |
[INFO] [stderr] 32 |     if let Some(login) = &downstream.login {
[INFO] [stderr]    |                 ^^^^^ help: consider prefixing with an underscore: `_login`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `destination`
[INFO] [stderr]   --> src/workflow/console/ngin.rs:56:13
[INFO] [stderr]    |
[INFO] [stderr] 56 |         for destination in CONFIG.destinations.values() {
[INFO] [stderr]    |             ^^^^^^^^^^^ help: consider prefixing with an underscore: `_destination`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/workflow/console/ngin.rs:148:14
[INFO] [stderr]     |
[INFO] [stderr] 148 |         for (i, (name, config)) in SERVER.iter().enumerate() {
[INFO] [stderr]     |              ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `config`
[INFO] [stderr]    --> src/workflow/console/ngin.rs:148:24
[INFO] [stderr]     |
[INFO] [stderr] 148 |         for (i, (name, config)) in SERVER.iter().enumerate() {
[INFO] [stderr]     |                        ^^^^^^ help: consider prefixing with an underscore: `_config`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new_str`
[INFO] [stderr]   --> src/message/hdr_string.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     pub fn new_str(s: &'static str) -> HdrString {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/message/hdr_string.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 |     pub fn new(s: String) -> HdrString {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `intern`
[INFO] [stderr]   --> src/message/hdr_string.rs:29:5
[INFO] [stderr]    |
[INFO] [stderr] 29 |     pub fn intern(&mut self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `as_str`
[INFO] [stderr]   --> src/message/hdr_string.rs:48:5
[INFO] [stderr]    |
[INFO] [stderr] 48 |     pub fn as_str(&self) -> &str {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/message/hdr_trait.rs:43:5
[INFO] [stderr]    |
[INFO] [stderr] 43 |     pub fn new(name: &str, value: &str) -> HeaderOwned {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `from_owned`
[INFO] [stderr]   --> src/message/hdr_trait.rs:49:5
[INFO] [stderr]    |
[INFO] [stderr] 49 |     pub fn from_owned(name: String, value: String) -> HeaderOwned {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/message/hdr_trait.rs:77:5
[INFO] [stderr]    |
[INFO] [stderr] 77 |     pub fn new(name: &'static str, value: &'static str) -> HeaderBorrowed {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]    --> src/message/hdr_trait.rs:105:5
[INFO] [stderr]     |
[INFO] [stderr] 105 |     pub fn new(name: &'static str, value: &'static str) -> HeaderBorrowedName {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `from_owned`
[INFO] [stderr]    --> src/message/hdr_trait.rs:111:5
[INFO] [stderr]     |
[INFO] [stderr] 111 |     pub fn from_owned(name: &'static str, value: String) -> HeaderBorrowedName {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `session_id`
[INFO] [stderr]   --> src/session/reader.rs:34:5
[INFO] [stderr]    |
[INFO] [stderr] 34 |     session_id: usize,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `id`
[INFO] [stderr]   --> src/downstream.rs:65:85
[INFO] [stderr]    |
[INFO] [stderr] 65 |     pub(crate) fn session_shutdown(&self, myself: Arc<RwLock<DownstreamConnector>>, id: usize, flags: u64) {
[INFO] [stderr]    |                                                                                     ^^ help: consider prefixing with an underscore: `_id`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `flags`
[INFO] [stderr]   --> src/downstream.rs:65:96
[INFO] [stderr]    |
[INFO] [stderr] 65 |     pub(crate) fn session_shutdown(&self, myself: Arc<RwLock<DownstreamConnector>>, id: usize, flags: u64) {
[INFO] [stderr]    |                                                                                                ^^^^^ help: consider prefixing with an underscore: `_flags`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `login`
[INFO] [stderr]   --> src/message/request.rs:10:17
[INFO] [stderr]    |
[INFO] [stderr] 10 |     if let Some(login) = &downstream.login {
[INFO] [stderr]    |                 ^^^^^ help: consider prefixing with an underscore: `_login`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `login`
[INFO] [stderr]   --> src/message/request.rs:32:17
[INFO] [stderr]    |
[INFO] [stderr] 32 |     if let Some(login) = &downstream.login {
[INFO] [stderr]    |                 ^^^^^ help: consider prefixing with an underscore: `_login`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `destination`
[INFO] [stderr]   --> src/workflow/console/ngin.rs:56:13
[INFO] [stderr]    |
[INFO] [stderr] 56 |         for destination in CONFIG.destinations.values() {
[INFO] [stderr]    |             ^^^^^^^^^^^ help: consider prefixing with an underscore: `_destination`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/workflow/console/ngin.rs:148:14
[INFO] [stderr]     |
[INFO] [stderr] 148 |         for (i, (name, config)) in SERVER.iter().enumerate() {
[INFO] [stderr]     |              ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `config`
[INFO] [stderr]    --> src/workflow/console/ngin.rs:148:24
[INFO] [stderr]     |
[INFO] [stderr] 148 |         for (i, (name, config)) in SERVER.iter().enumerate() {
[INFO] [stderr]     |                        ^^^^^^ help: consider prefixing with an underscore: `_config`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new_str`
[INFO] [stderr]   --> src/message/hdr_string.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     pub fn new_str(s: &'static str) -> HdrString {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/message/hdr_string.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 |     pub fn new(s: String) -> HdrString {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `intern`
[INFO] [stderr]   --> src/message/hdr_string.rs:29:5
[INFO] [stderr]    |
[INFO] [stderr] 29 |     pub fn intern(&mut self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `as_str`
[INFO] [stderr]   --> src/message/hdr_string.rs:48:5
[INFO] [stderr]    |
[INFO] [stderr] 48 |     pub fn as_str(&self) -> &str {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/message/hdr_trait.rs:43:5
[INFO] [stderr]    |
[INFO] [stderr] 43 |     pub fn new(name: &str, value: &str) -> HeaderOwned {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `from_owned`
[INFO] [stderr]   --> src/message/hdr_trait.rs:49:5
[INFO] [stderr]    |
[INFO] [stderr] 49 |     pub fn from_owned(name: String, value: String) -> HeaderOwned {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/message/hdr_trait.rs:77:5
[INFO] [stderr]    |
[INFO] [stderr] 77 |     pub fn new(name: &'static str, value: &'static str) -> HeaderBorrowed {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]    --> src/message/hdr_trait.rs:105:5
[INFO] [stderr]     |
[INFO] [stderr] 105 |     pub fn new(name: &'static str, value: &'static str) -> HeaderBorrowedName {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `from_owned`
[INFO] [stderr]    --> src/message/hdr_trait.rs:111:5
[INFO] [stderr]     |
[INFO] [stderr] 111 |     pub fn from_owned(name: &'static str, value: String) -> HeaderBorrowedName {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `session_id`
[INFO] [stderr]   --> src/session/reader.rs:34:5
[INFO] [stderr]    |
[INFO] [stderr] 34 |     session_id: usize,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 50.07s
[INFO] running `"docker" "inspect" "78a76bbfb1cbed9453a4a64e23e8eb84e3d5fadc5a2ad7e8e64a7a7b3640df0c"`
[INFO] running `"docker" "rm" "-f" "78a76bbfb1cbed9453a4a64e23e8eb84e3d5fadc5a2ad7e8e64a7a7b3640df0c"`
[INFO] [stdout] 78a76bbfb1cbed9453a4a64e23e8eb84e3d5fadc5a2ad7e8e64a7a7b3640df0c