[INFO] fetching crate oxidecord 0.0.1...
[INFO] checking oxidecord-0.0.1 against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393
[INFO] extracting crate oxidecord 0.0.1 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate oxidecord 0.0.1 on toolchain 45d050cde277b22a755847338f2acc2c7b834141
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate oxidecord 0.0.1
[INFO] finished tweaking crates.io crate oxidecord 0.0.1
[INFO] tweaked toml for crates.io crate oxidecord 0.0.1 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+45d050cde277b22a755847338f2acc2c7b834141" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] dff4a9cb5e440ae91de447664547bb470b13c3af904e80f2ce420571bda00e50
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "dff4a9cb5e440ae91de447664547bb470b13c3af904e80f2ce420571bda00e50"`
[INFO] [stderr]     Checking futures v0.1.29
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[INFO] [stderr]     Checking oxidecord v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `std::io::stdin`
[INFO] [stderr]  --> src/auth/mod.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::io::stdin;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]  --> src/auth/mod.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::collections::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Result`
[INFO] [stderr]  --> src/auth/mod.rs:7:18
[INFO] [stderr]   |
[INFO] [stderr] 7 | use serde_json::{Result, Value};
[INFO] [stderr]   |                  ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `sleep`, `spawn`
[INFO] [stderr]  --> src/auth/mod.rs:9:19
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::thread::{spawn, sleep};
[INFO] [stderr]   |                   ^^^^^  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::borrow::BorrowMut`
[INFO] [stderr]   --> src/auth/mod.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use std::borrow::BorrowMut;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crossbeam::crossbeam_channel::unbounded`
[INFO] [stderr]   --> src/auth/mod.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 | use crossbeam::crossbeam_channel::unbounded;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::rc::Rc`
[INFO] [stderr]   --> src/auth/mod.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 | use std::rc::Rc;
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::cell::RefCell`
[INFO] [stderr]   --> src/auth/mod.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 | use std::cell::RefCell;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]  --> src/rest/mod.rs:5:32
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn findgateway() -> Result<(String), Box<std::error::Error>> {
[INFO] [stderr]   |                                ^^^^^^^^ help: remove these parentheses
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/rest/mod.rs:5:46
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn findgateway() -> Result<(String), Box<std::error::Error>> {
[INFO] [stderr]   |                                              ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::stdin`
[INFO] [stderr]  --> src/auth/mod.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::io::stdin;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]  --> src/auth/mod.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::collections::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Result`
[INFO] [stderr]  --> src/auth/mod.rs:7:18
[INFO] [stderr]   |
[INFO] [stderr] 7 | use serde_json::{Result, Value};
[INFO] [stderr]   |                  ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `sleep`, `spawn`
[INFO] [stderr]  --> src/auth/mod.rs:9:19
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::thread::{spawn, sleep};
[INFO] [stderr]   |                   ^^^^^  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::borrow::BorrowMut`
[INFO] [stderr]   --> src/auth/mod.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use std::borrow::BorrowMut;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crossbeam::crossbeam_channel::unbounded`
[INFO] [stderr]   --> src/auth/mod.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 | use crossbeam::crossbeam_channel::unbounded;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::rc::Rc`
[INFO] [stderr]   --> src/auth/mod.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 | use std::rc::Rc;
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::cell::RefCell`
[INFO] [stderr]   --> src/auth/mod.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 | use std::cell::RefCell;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]  --> src/rest/mod.rs:5:32
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn findgateway() -> Result<(String), Box<std::error::Error>> {
[INFO] [stderr]   |                                ^^^^^^^^ help: remove these parentheses
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/rest/mod.rs:5:46
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn findgateway() -> Result<(String), Box<std::error::Error>> {
[INFO] [stderr]   |                                              ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `now`
[INFO] [stderr]   --> src/auth/mod.rs:84:17
[INFO] [stderr]    |
[INFO] [stderr] 84 |             let now = time::Instant::now();
[INFO] [stderr]    |                 ^^^ help: if this is intentional, prefix it with an underscore: `_now`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `seq_num`
[INFO] [stderr]   --> src/auth/mod.rs:86:17
[INFO] [stderr]    |
[INFO] [stderr] 86 |             let seq_num = GLOBAL_SEQ_NUM.read().unwrap();
[INFO] [stderr]    |                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_seq_num`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `response`
[INFO] [stderr]   --> src/auth/mod.rs:46:22
[INFO] [stderr]    |
[INFO] [stderr] 46 |     let (mut socket, response) = connect(Url::parse(&rest::findgateway().unwrap()).unwrap())
[INFO] [stderr]    |                      ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_response`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/auth/mod.rs:90:5
[INFO] [stderr]    |
[INFO] [stderr] 90 |     handler.join();
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 14 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `now`
[INFO] [stderr]   --> src/auth/mod.rs:84:17
[INFO] [stderr]    |
[INFO] [stderr] 84 |             let now = time::Instant::now();
[INFO] [stderr]    |                 ^^^ help: if this is intentional, prefix it with an underscore: `_now`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `seq_num`
[INFO] [stderr]   --> src/auth/mod.rs:86:17
[INFO] [stderr]    |
[INFO] [stderr] 86 |             let seq_num = GLOBAL_SEQ_NUM.read().unwrap();
[INFO] [stderr]    |                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_seq_num`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `response`
[INFO] [stderr]   --> src/auth/mod.rs:46:22
[INFO] [stderr]    |
[INFO] [stderr] 46 |     let (mut socket, response) = connect(Url::parse(&rest::findgateway().unwrap()).unwrap())
[INFO] [stderr]    |                      ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_response`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/auth/mod.rs:90:5
[INFO] [stderr]    |
[INFO] [stderr] 90 |     handler.join();
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 14 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 24s
[INFO] running `"docker" "inspect" "dff4a9cb5e440ae91de447664547bb470b13c3af904e80f2ce420571bda00e50"`
[INFO] running `"docker" "rm" "-f" "dff4a9cb5e440ae91de447664547bb470b13c3af904e80f2ce420571bda00e50"`
[INFO] [stdout] dff4a9cb5e440ae91de447664547bb470b13c3af904e80f2ce420571bda00e50