[INFO] cloning repository https://github.com/vandenbogart/maelle
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/vandenbogart/maelle" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvandenbogart%2Fmaelle", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvandenbogart%2Fmaelle'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b8532a22163b74cdfb2dce9eb7b81cf3776506f5
[INFO] checking vandenbogart/maelle against master#69fd5e4059f8840f09f60269bcda23dcdcb77151 for pr-135733
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvandenbogart%2Fmaelle" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/vandenbogart/maelle on toolchain 69fd5e4059f8840f09f60269bcda23dcdcb77151
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+69fd5e4059f8840f09f60269bcda23dcdcb77151" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/vandenbogart/maelle
[INFO] finished tweaking git repo https://github.com/vandenbogart/maelle
[INFO] tweaked toml for git repo https://github.com/vandenbogart/maelle written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/vandenbogart/maelle 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" "+69fd5e4059f8840f09f60269bcda23dcdcb77151" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+69fd5e4059f8840f09f60269bcda23dcdcb77151" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f7fb9d7c7d776d8316e17830a100e8dfbe09649f3a5ee290b01bb510ab3ed97d
[INFO] running `Command { std: "docker" "start" "-a" "f7fb9d7c7d776d8316e17830a100e8dfbe09649f3a5ee290b01bb510ab3ed97d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f7fb9d7c7d776d8316e17830a100e8dfbe09649f3a5ee290b01bb510ab3ed97d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7fb9d7c7d776d8316e17830a100e8dfbe09649f3a5ee290b01bb510ab3ed97d", kill_on_drop: false }`
[INFO] [stdout] f7fb9d7c7d776d8316e17830a100e8dfbe09649f3a5ee290b01bb510ab3ed97d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+69fd5e4059f8840f09f60269bcda23dcdcb77151" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d650c97e9608240aec47b16ebcd59fa60dc93aa6bf94cf41f3c04df24ca1795b
[INFO] running `Command { std: "docker" "start" "-a" "d650c97e9608240aec47b16ebcd59fa60dc93aa6bf94cf41f3c04df24ca1795b", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.60
[INFO] [stderr]    Compiling quote v1.0.28
[INFO] [stderr]    Compiling unicode-ident v1.0.9
[INFO] [stderr]    Compiling serde v1.0.164
[INFO] [stderr]    Compiling serde_json v1.0.97
[INFO] [stderr]    Compiling anyhow v1.0.71
[INFO] [stderr]     Checking ryu v1.0.13
[INFO] [stderr]     Checking itoa v1.0.6
[INFO] [stderr]    Compiling syn v2.0.18
[INFO] [stderr]    Compiling serde_derive v1.0.164
[INFO] [stderr]     Checking maelle v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `RwLock`
[INFO] [stdout]  --> src/main.rs:5:24
[INFO] [stdout]   |
[INFO] [stdout] 5 |     sync::{Arc, Mutex, RwLock, mpsc},
[INFO] [stdout]   |                        ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `RwLock`
[INFO] [stdout]  --> src/main.rs:5:24
[INFO] [stdout]   |
[INFO] [stdout] 5 |     sync::{Arc, Mutex, RwLock, mpsc},
[INFO] [stdout]   |                        ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `retry_thread`
[INFO] [stdout]    --> src/main.rs:175:10
[INFO] [stdout]     |
[INFO] [stdout] 175 |     let (retry_thread, kill_channel) = {
[INFO] [stdout]     |          ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_retry_thread`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `msg_id`
[INFO] [stdout]    --> src/main.rs:216:21
[INFO] [stdout]     |
[INFO] [stdout] 216 |                     msg_id,
[INFO] [stdout]     |                     ^^^^^^ help: try ignoring the field: `msg_id: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `in_reply_to`
[INFO] [stdout]    --> src/main.rs:217:21
[INFO] [stdout]     |
[INFO] [stdout] 217 |                     in_reply_to,
[INFO] [stdout]     |                     ^^^^^^^^^^^ help: try ignoring the field: `in_reply_to: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `echo`
[INFO] [stdout]    --> src/main.rs:218:21
[INFO] [stdout]     |
[INFO] [stdout] 218 |                     echo,
[INFO] [stdout]     |                     ^^^^ help: try ignoring the field: `echo: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `msg_id`
[INFO] [stdout]    --> src/main.rs:230:21
[INFO] [stdout]     |
[INFO] [stdout] 230 |                     msg_id,
[INFO] [stdout]     |                     ^^^^^^ help: try ignoring the field: `msg_id: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `in_reply_to`
[INFO] [stdout]    --> src/main.rs:231:21
[INFO] [stdout]     |
[INFO] [stdout] 231 |                     in_reply_to,
[INFO] [stdout]     |                     ^^^^^^^^^^^ help: try ignoring the field: `in_reply_to: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `id`
[INFO] [stdout]    --> src/main.rs:232:21
[INFO] [stdout]     |
[INFO] [stdout] 232 |                     id,
[INFO] [stdout]     |                     ^^ help: try ignoring the field: `id: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `msg_id`
[INFO] [stdout]    --> src/main.rs:244:21
[INFO] [stdout]     |
[INFO] [stdout] 244 |                     msg_id,
[INFO] [stdout]     |                     ^^^^^^ help: try ignoring the field: `msg_id: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `in_reply_to`
[INFO] [stdout]    --> src/main.rs:245:21
[INFO] [stdout]     |
[INFO] [stdout] 245 |                     in_reply_to,
[INFO] [stdout]     |                     ^^^^^^^^^^^ help: try ignoring the field: `in_reply_to: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `msg_id`
[INFO] [stdout]    --> src/main.rs:274:21
[INFO] [stdout]     |
[INFO] [stdout] 274 |                     msg_id,
[INFO] [stdout]     |                     ^^^^^^ help: try ignoring the field: `msg_id: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `msg_id`
[INFO] [stdout]    --> src/main.rs:292:21
[INFO] [stdout]     |
[INFO] [stdout] 292 |                     msg_id,
[INFO] [stdout]     |                     ^^^^^^ help: try ignoring the field: `msg_id: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `in_reply_to`
[INFO] [stdout]    --> src/main.rs:293:21
[INFO] [stdout]     |
[INFO] [stdout] 293 |                     in_reply_to,
[INFO] [stdout]     |                     ^^^^^^^^^^^ help: try ignoring the field: `in_reply_to: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `messages`
[INFO] [stdout]    --> src/main.rs:294:21
[INFO] [stdout]     |
[INFO] [stdout] 294 |                     messages,
[INFO] [stdout]     |                     ^^^^^^^^ help: try ignoring the field: `messages: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `node_ids` is never read
[INFO] [stdout]   --> src/main.rs:89:5
[INFO] [stdout]    |
[INFO] [stdout] 87 | struct Node {
[INFO] [stdout]    |        ---- field in this struct
[INFO] [stdout] 88 |     id: String,
[INFO] [stdout] 89 |     node_ids: Vec<String>,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `retry_thread`
[INFO] [stdout]    --> src/main.rs:175:10
[INFO] [stdout]     |
[INFO] [stdout] 175 |     let (retry_thread, kill_channel) = {
[INFO] [stdout]     |          ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_retry_thread`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `msg_id`
[INFO] [stdout]    --> src/main.rs:216:21
[INFO] [stdout]     |
[INFO] [stdout] 216 |                     msg_id,
[INFO] [stdout]     |                     ^^^^^^ help: try ignoring the field: `msg_id: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `in_reply_to`
[INFO] [stdout]    --> src/main.rs:217:21
[INFO] [stdout]     |
[INFO] [stdout] 217 |                     in_reply_to,
[INFO] [stdout]     |                     ^^^^^^^^^^^ help: try ignoring the field: `in_reply_to: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `echo`
[INFO] [stdout]    --> src/main.rs:218:21
[INFO] [stdout]     |
[INFO] [stdout] 218 |                     echo,
[INFO] [stdout]     |                     ^^^^ help: try ignoring the field: `echo: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `msg_id`
[INFO] [stdout]    --> src/main.rs:230:21
[INFO] [stdout]     |
[INFO] [stdout] 230 |                     msg_id,
[INFO] [stdout]     |                     ^^^^^^ help: try ignoring the field: `msg_id: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `in_reply_to`
[INFO] [stdout]    --> src/main.rs:231:21
[INFO] [stdout]     |
[INFO] [stdout] 231 |                     in_reply_to,
[INFO] [stdout]     |                     ^^^^^^^^^^^ help: try ignoring the field: `in_reply_to: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `id`
[INFO] [stdout]    --> src/main.rs:232:21
[INFO] [stdout]     |
[INFO] [stdout] 232 |                     id,
[INFO] [stdout]     |                     ^^ help: try ignoring the field: `id: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `msg_id`
[INFO] [stdout]    --> src/main.rs:244:21
[INFO] [stdout]     |
[INFO] [stdout] 244 |                     msg_id,
[INFO] [stdout]     |                     ^^^^^^ help: try ignoring the field: `msg_id: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `in_reply_to`
[INFO] [stdout]    --> src/main.rs:245:21
[INFO] [stdout]     |
[INFO] [stdout] 245 |                     in_reply_to,
[INFO] [stdout]     |                     ^^^^^^^^^^^ help: try ignoring the field: `in_reply_to: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `msg_id`
[INFO] [stdout]    --> src/main.rs:274:21
[INFO] [stdout]     |
[INFO] [stdout] 274 |                     msg_id,
[INFO] [stdout]     |                     ^^^^^^ help: try ignoring the field: `msg_id: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `msg_id`
[INFO] [stdout]    --> src/main.rs:292:21
[INFO] [stdout]     |
[INFO] [stdout] 292 |                     msg_id,
[INFO] [stdout]     |                     ^^^^^^ help: try ignoring the field: `msg_id: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `in_reply_to`
[INFO] [stdout]    --> src/main.rs:293:21
[INFO] [stdout]     |
[INFO] [stdout] 293 |                     in_reply_to,
[INFO] [stdout]     |                     ^^^^^^^^^^^ help: try ignoring the field: `in_reply_to: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `messages`
[INFO] [stdout]    --> src/main.rs:294:21
[INFO] [stdout]     |
[INFO] [stdout] 294 |                     messages,
[INFO] [stdout]     |                     ^^^^^^^^ help: try ignoring the field: `messages: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `node_ids` is never read
[INFO] [stdout]   --> src/main.rs:89:5
[INFO] [stdout]    |
[INFO] [stdout] 87 | struct Node {
[INFO] [stdout]    |        ---- field in this struct
[INFO] [stdout] 88 |     id: String,
[INFO] [stdout] 89 |     node_ids: Vec<String>,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.47s
[INFO] running `Command { std: "docker" "inspect" "d650c97e9608240aec47b16ebcd59fa60dc93aa6bf94cf41f3c04df24ca1795b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d650c97e9608240aec47b16ebcd59fa60dc93aa6bf94cf41f3c04df24ca1795b", kill_on_drop: false }`
[INFO] [stdout] d650c97e9608240aec47b16ebcd59fa60dc93aa6bf94cf41f3c04df24ca1795b