[INFO] updating cached repository Dieff/not-a-backdoor
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Dieff/not-a-backdoor
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Dieff/not-a-backdoor" "work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/Dieff/not-a-backdoor"`
[INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/Dieff/not-a-backdoor'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Dieff/not-a-backdoor" "work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/Dieff/not-a-backdoor"`
[INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/Dieff/not-a-backdoor'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] de6f98867b194620ee820ba854b75c09361192ea
[INFO] sha for GitHub repo Dieff/not-a-backdoor: de6f98867b194620ee820ba854b75c09361192ea
[INFO] validating manifest of Dieff/not-a-backdoor on toolchain master#0f88167f89fffe321590c5148f21b7d51d44388d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of Dieff/not-a-backdoor on toolchain try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing Dieff/not-a-backdoor
[INFO] finished frobbing Dieff/not-a-backdoor
[INFO] frobbed toml for Dieff/not-a-backdoor written to work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/Dieff/not-a-backdoor/Cargo.toml
[INFO] started frobbing Dieff/not-a-backdoor
[INFO] finished frobbing Dieff/not-a-backdoor
[INFO] frobbed toml for Dieff/not-a-backdoor written to work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/Dieff/not-a-backdoor/Cargo.toml
[INFO] crate Dieff/not-a-backdoor already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking Dieff/not-a-backdoor against try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b for pr-58948
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58948/worker-4/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/Dieff/not-a-backdoor:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 51e5a4667aa0b8e88a75367f09cf388865f550c5195f569f1e8f4657432c332d
[INFO] running `"docker" "start" "-a" "51e5a4667aa0b8e88a75367f09cf388865f550c5195f569f1e8f4657432c332d"`
[INFO] [stderr]    Compiling sys-info v0.5.6
[INFO] [stderr]     Checking stderrlog v0.4.1
[INFO] [stderr]     Checking not-a-backdoor v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `sleep`
[INFO] [stderr]  --> src/lib_client/senders/udp.rs:8:19
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::thread::{sleep, spawn};
[INFO] [stderr]   |                   ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fmt::Display`
[INFO] [stderr]  --> src/lib_server/eventloop.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::fmt::Display;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `sleep`
[INFO] [stderr]  --> src/lib_client/senders/udp.rs:8:19
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::thread::{sleep, spawn};
[INFO] [stderr]   |                   ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fmt::Display`
[INFO] [stderr]  --> src/lib_server/eventloop.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::fmt::Display;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `err`
[INFO] [stderr]   --> src/lib_server/udp.rs:78:21
[INFO] [stderr]    |
[INFO] [stderr] 78 |                 Err(err) => {
[INFO] [stderr]    |                     ^^^ help: consider prefixing with an underscore: `_err`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `err`
[INFO] [stderr]   --> src/lib_server/udp.rs:78:21
[INFO] [stderr]    |
[INFO] [stderr] 78 |                 Err(err) => {
[INFO] [stderr]    |                     ^^^ help: consider prefixing with an underscore: `_err`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `sent`
[INFO] [stderr]  --> src/lib_server/client_tracker.rs:9:3
[INFO] [stderr]   |
[INFO] [stderr] 9 |   sent: i64,
[INFO] [stderr]   |   ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `recieved`
[INFO] [stderr]   --> src/lib_server/client_tracker.rs:10:3
[INFO] [stderr]    |
[INFO] [stderr] 10 |   recieved: i64,
[INFO] [stderr]    |   ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `ip`
[INFO] [stderr]   --> src/lib_server/client_tracker.rs:32:3
[INFO] [stderr]    |
[INFO] [stderr] 32 |   ip: IpAddr,
[INFO] [stderr]    |   ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `os`
[INFO] [stderr]   --> src/lib_server/client_tracker.rs:33:3
[INFO] [stderr]    |
[INFO] [stderr] 33 |   os: String,
[INFO] [stderr]    |   ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_elapsed`
[INFO] [stderr]   --> src/lib_server/client_tracker.rs:51:3
[INFO] [stderr]    |
[INFO] [stderr] 51 |   fn get_elapsed(&self) -> Duration {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `add_output`
[INFO] [stderr]   --> src/net_messages.rs:19:3
[INFO] [stderr]    |
[INFO] [stderr] 19 |   pub fn add_output(&mut self, output: String) {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `from_cmds`
[INFO] [stderr]   --> src/net_messages.rs:34:3
[INFO] [stderr]    |
[INFO] [stderr] 34 |   pub fn from_cmds(id: String, commands: Vec<Command>) -> ClientToServer {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `from_str`
[INFO] [stderr]   --> src/net_messages.rs:45:3
[INFO] [stderr]    |
[INFO] [stderr] 45 |   pub fn from_str(string: String) -> Result<ServerToClient, serde_json::Error> {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `sent`
[INFO] [stderr]  --> src/lib_server/client_tracker.rs:9:3
[INFO] [stderr]   |
[INFO] [stderr] 9 |   sent: i64,
[INFO] [stderr]   |   ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `recieved`
[INFO] [stderr]   --> src/lib_server/client_tracker.rs:10:3
[INFO] [stderr]    |
[INFO] [stderr] 10 |   recieved: i64,
[INFO] [stderr]    |   ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `ip`
[INFO] [stderr]   --> src/lib_server/client_tracker.rs:32:3
[INFO] [stderr]    |
[INFO] [stderr] 32 |   ip: IpAddr,
[INFO] [stderr]    |   ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `os`
[INFO] [stderr]   --> src/lib_server/client_tracker.rs:33:3
[INFO] [stderr]    |
[INFO] [stderr] 33 |   os: String,
[INFO] [stderr]    |   ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_elapsed`
[INFO] [stderr]   --> src/lib_server/client_tracker.rs:51:3
[INFO] [stderr]    |
[INFO] [stderr] 51 |   fn get_elapsed(&self) -> Duration {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `add_output`
[INFO] [stderr]   --> src/net_messages.rs:19:3
[INFO] [stderr]    |
[INFO] [stderr] 19 |   pub fn add_output(&mut self, output: String) {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `from_cmds`
[INFO] [stderr]   --> src/net_messages.rs:34:3
[INFO] [stderr]    |
[INFO] [stderr] 34 |   pub fn from_cmds(id: String, commands: Vec<Command>) -> ClientToServer {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `from_str`
[INFO] [stderr]   --> src/net_messages.rs:45:3
[INFO] [stderr]    |
[INFO] [stderr] 45 |   pub fn from_str(string: String) -> Result<ServerToClient, serde_json::Error> {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `from_input`
[INFO] [stderr]   --> src/net_messages.rs:11:3
[INFO] [stderr]    |
[INFO] [stderr] 11 |   pub fn from_input(input: String, id: usize) -> Command {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `from_str`
[INFO] [stderr]   --> src/net_messages.rs:31:3
[INFO] [stderr]    |
[INFO] [stderr] 31 |   pub fn from_str(string: String) -> Result<ClientToServer, serde_json::Error> {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `from_cmds`
[INFO] [stderr]   --> src/net_messages.rs:48:3
[INFO] [stderr]    |
[INFO] [stderr] 48 |   pub fn from_cmds(commands: Vec<Command>) -> ServerToClient {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `from_input`
[INFO] [stderr]   --> src/net_messages.rs:11:3
[INFO] [stderr]    |
[INFO] [stderr] 11 |   pub fn from_input(input: String, id: usize) -> Command {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `from_str`
[INFO] [stderr]   --> src/net_messages.rs:31:3
[INFO] [stderr]    |
[INFO] [stderr] 31 |   pub fn from_str(string: String) -> Result<ClientToServer, serde_json::Error> {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `from_cmds`
[INFO] [stderr]   --> src/net_messages.rs:48:3
[INFO] [stderr]    |
[INFO] [stderr] 48 |   pub fn from_cmds(commands: Vec<Command>) -> ServerToClient {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.19s
[INFO] running `"docker" "inspect" "51e5a4667aa0b8e88a75367f09cf388865f550c5195f569f1e8f4657432c332d"`
[INFO] running `"docker" "rm" "-f" "51e5a4667aa0b8e88a75367f09cf388865f550c5195f569f1e8f4657432c332d"`
[INFO] [stdout] 51e5a4667aa0b8e88a75367f09cf388865f550c5195f569f1e8f4657432c332d