[INFO] cloning repository https://github.com/octorrent/rlibdht
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/octorrent/rlibdht" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Foctorrent%2Frlibdht", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Foctorrent%2Frlibdht'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] eedde0399fad7b80b88029aaa3c03973a4888b11
[INFO] checking octorrent/rlibdht against try#4e55a504843955c97eb06907c71f6f3e99208021 for pr-146978
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Foctorrent%2Frlibdht" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/octorrent/rlibdht
[INFO] finished tweaking git repo https://github.com/octorrent/rlibdht
[INFO] tweaked toml for git repo https://github.com/octorrent/rlibdht written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/octorrent/rlibdht on toolchain 4e55a504843955c97eb06907c71f6f3e99208021
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4e55a504843955c97eb06907c71f6f3e99208021" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/octorrent/rlibdht 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" "+4e55a504843955c97eb06907c71f6f3e99208021" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking octorrent/rlibdht against try#4e55a504843955c97eb06907c71f6f3e99208021 for pr-146978
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Foctorrent%2Frlibdht" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/octorrent/rlibdht
[INFO] finished tweaking git repo https://github.com/octorrent/rlibdht
[INFO] tweaked toml for git repo https://github.com/octorrent/rlibdht written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/octorrent/rlibdht on toolchain 4e55a504843955c97eb06907c71f6f3e99208021
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4e55a504843955c97eb06907c71f6f3e99208021" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/octorrent/rlibdht 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" "+4e55a504843955c97eb06907c71f6f3e99208021" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rlibbencode v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4e55a504843955c97eb06907c71f6f3e99208021" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ab86ca4c933e622f84742f8beff5f61b2129118835d215f76ce3710258593978
[INFO] running `Command { std: "docker" "start" "-a" "ab86ca4c933e622f84742f8beff5f61b2129118835d215f76ce3710258593978", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ab86ca4c933e622f84742f8beff5f61b2129118835d215f76ce3710258593978", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab86ca4c933e622f84742f8beff5f61b2129118835d215f76ce3710258593978", kill_on_drop: false }`
[INFO] [stdout] ab86ca4c933e622f84742f8beff5f61b2129118835d215f76ce3710258593978
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4e55a504843955c97eb06907c71f6f3e99208021" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f4ef44a2b9f2fa9155d153622593f27e1e109de155f257ec716c838d3da0e7a6
[INFO] running `Command { std: "docker" "start" "-a" "f4ef44a2b9f2fa9155d153622593f27e1e109de155f257ec716c838d3da0e7a6", kill_on_drop: false }`
[INFO] [stderr]     Checking rlibbencode v0.1.0
[INFO] [stderr]     Checking rlibdht v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Mutex`
[INFO] [stdout]  --> src/kad/server.rs:4:22
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::sync::{Arc, Mutex};
[INFO] [stdout]   |                      ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Mutex`
[INFO] [stdout]  --> src/kad/server.rs:4:22
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::sync::{Arc, Mutex};
[INFO] [stdout]   |                      ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BencodeVariable`
[INFO] [stdout]   --> src/kad/server.rs:12:55
[INFO] [stdout]    |
[INFO] [stdout] 12 | use rlibbencode::variables::inter::bencode_variable::{BencodeVariable, FromBencode, ToBencode};
[INFO] [stdout]    |                                                       ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BencodeVariable`
[INFO] [stdout]   --> src/kad/server.rs:12:55
[INFO] [stdout]    |
[INFO] [stdout] 12 | use rlibbencode::variables::inter::bencode_variable::{BencodeVariable, FromBencode, ToBencode};
[INFO] [stdout]    |                                                       ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `id`
[INFO] [stdout]   --> src/routing/mainline/m_routing_table.rs:88:21
[INFO] [stdout]    |
[INFO] [stdout] 88 |                 let id = self.bucket_uid(&n.uid);
[INFO] [stdout]    |                     ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]    --> src/routing/mainline/m_routing_table.rs:174:27
[INFO] [stdout]     |
[INFO] [stdout] 174 |     fn has_queried(&self, n: &Node, now: u128) -> bool {
[INFO] [stdout]     |                           ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `now`
[INFO] [stdout]    --> src/routing/mainline/m_routing_table.rs:174:37
[INFO] [stdout]     |
[INFO] [stdout] 174 |     fn has_queried(&self, n: &Node, now: u128) -> bool {
[INFO] [stdout]     |                                     ^^^ help: if this is intentional, prefix it with an underscore: `_now`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `k`
[INFO] [stdout]    --> src/routing/mainline/m_routing_table.rs:178:26
[INFO] [stdout]     |
[INFO] [stdout] 178 |     fn bucket_uid(&self, k: &UID) -> usize {
[INFO] [stdout]     |                          ^ help: if this is intentional, prefix it with an underscore: `_k`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `k`
[INFO] [stdout]    --> src/routing/mainline/m_routing_table.rs:186:28
[INFO] [stdout]     |
[INFO] [stdout] 186 |     fn find_closest(&self, k: &UID, r: usize) -> Vec<Node> {
[INFO] [stdout]     |                            ^ help: if this is intentional, prefix it with an underscore: `_k`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `r`
[INFO] [stdout]    --> src/routing/mainline/m_routing_table.rs:186:37
[INFO] [stdout]     |
[INFO] [stdout] 186 |     fn find_closest(&self, k: &UID, r: usize) -> Vec<Node> {
[INFO] [stdout]     |                                     ^ help: if this is intentional, prefix it with an underscore: `_r`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/routing/mainline/m_routing_table.rs:190:27
[INFO] [stdout]     |
[INFO] [stdout] 190 |     fn bucket_size(&self, i: usize) -> usize {
[INFO] [stdout]     |                           ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `id`
[INFO] [stdout]   --> src/routing/mainline/m_routing_table.rs:88:21
[INFO] [stdout]    |
[INFO] [stdout] 88 |                 let id = self.bucket_uid(&n.uid);
[INFO] [stdout]    |                     ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]    --> src/routing/mainline/m_routing_table.rs:174:27
[INFO] [stdout]     |
[INFO] [stdout] 174 |     fn has_queried(&self, n: &Node, now: u128) -> bool {
[INFO] [stdout]     |                           ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `now`
[INFO] [stdout]    --> src/routing/mainline/m_routing_table.rs:174:37
[INFO] [stdout]     |
[INFO] [stdout] 174 |     fn has_queried(&self, n: &Node, now: u128) -> bool {
[INFO] [stdout]     |                                     ^^^ help: if this is intentional, prefix it with an underscore: `_now`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `k`
[INFO] [stdout]    --> src/routing/mainline/m_routing_table.rs:178:26
[INFO] [stdout]     |
[INFO] [stdout] 178 |     fn bucket_uid(&self, k: &UID) -> usize {
[INFO] [stdout]     |                          ^ help: if this is intentional, prefix it with an underscore: `_k`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `k`
[INFO] [stdout]    --> src/routing/mainline/m_routing_table.rs:186:28
[INFO] [stdout]     |
[INFO] [stdout] 186 |     fn find_closest(&self, k: &UID, r: usize) -> Vec<Node> {
[INFO] [stdout]     |                            ^ help: if this is intentional, prefix it with an underscore: `_k`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `r`
[INFO] [stdout]    --> src/routing/mainline/m_routing_table.rs:186:37
[INFO] [stdout]     |
[INFO] [stdout] 186 |     fn find_closest(&self, k: &UID, r: usize) -> Vec<Node> {
[INFO] [stdout]     |                                     ^ help: if this is intentional, prefix it with an underscore: `_r`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/routing/mainline/m_routing_table.rs:190:27
[INFO] [stdout]     |
[INFO] [stdout] 190 |     fn bucket_size(&self, i: usize) -> usize {
[INFO] [stdout]     |                           ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `handle`
[INFO] [stdout]   --> src/refresh/refresh_handler.rs:39:13
[INFO] [stdout]    |
[INFO] [stdout] 39 |         let handle = thread::spawn({
[INFO] [stdout]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_handle`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MAX_STALE_COUNT` is never used
[INFO] [stdout]  --> src/routing/mainline/m_bucket.rs:4:7
[INFO] [stdout]   |
[INFO] [stdout] 4 | const MAX_STALE_COUNT: u32 = 1;
[INFO] [stdout]   |       ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `cache` is never read
[INFO] [stdout]  --> src/routing/mainline/m_bucket.rs:8:16
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct MBucket {
[INFO] [stdout]   |            ------- field in this struct
[INFO] [stdout] 7 |     pub(crate) nodes: Vec<Node>,
[INFO] [stdout] 8 |     pub(crate) cache: Vec<Node>
[INFO] [stdout]   |                ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/kad/server.rs:106:33
[INFO] [stdout]     |
[INFO] [stdout] 106 | ...                   server.send_to(data.as_slice(), dst_addr);
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 106 |                                 let _ = server.send_to(data.as_slice(), dst_addr);
[INFO] [stdout]     |                                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `handle`
[INFO] [stdout]   --> src/refresh/refresh_handler.rs:39:13
[INFO] [stdout]    |
[INFO] [stdout] 39 |         let handle = thread::spawn({
[INFO] [stdout]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_handle`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MAX_STALE_COUNT` is never used
[INFO] [stdout]  --> src/routing/mainline/m_bucket.rs:4:7
[INFO] [stdout]   |
[INFO] [stdout] 4 | const MAX_STALE_COUNT: u32 = 1;
[INFO] [stdout]   |       ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `cache` is never read
[INFO] [stdout]  --> src/routing/mainline/m_bucket.rs:8:16
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct MBucket {
[INFO] [stdout]   |            ------- field in this struct
[INFO] [stdout] 7 |     pub(crate) nodes: Vec<Node>,
[INFO] [stdout] 8 |     pub(crate) cache: Vec<Node>
[INFO] [stdout]   |                ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `resolve_hostname` is never used
[INFO] [stdout]   --> src/lib.rs:48:8
[INFO] [stdout]    |
[INFO] [stdout] 48 |     fn resolve_hostname(hostname: &str) -> Result<IpAddr, std::io::Error> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/kad/server.rs:106:33
[INFO] [stdout]     |
[INFO] [stdout] 106 | ...                   server.send_to(data.as_slice(), dst_addr);
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 106 |                                 let _ = server.send_to(data.as_slice(), dst_addr);
[INFO] [stdout]     |                                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.74s
[INFO] running `Command { std: "docker" "inspect" "f4ef44a2b9f2fa9155d153622593f27e1e109de155f257ec716c838d3da0e7a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4ef44a2b9f2fa9155d153622593f27e1e109de155f257ec716c838d3da0e7a6", kill_on_drop: false }`
[INFO] [stdout] f4ef44a2b9f2fa9155d153622593f27e1e109de155f257ec716c838d3da0e7a6