[INFO] cloning repository https://github.com/SilenceFox/vtt-backend
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/SilenceFox/vtt-backend" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSilenceFox%2Fvtt-backend", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSilenceFox%2Fvtt-backend'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8beb73601ba510d25839882d1d64c3aab4cd6c30
[INFO] checking SilenceFox/vtt-backend against master#779e19d8baa3e3625bd4fc5c85cbb2ad47b43155 for pr-147589-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSilenceFox%2Fvtt-backend" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/SilenceFox/vtt-backend
[INFO] finished tweaking git repo https://github.com/SilenceFox/vtt-backend
[INFO] tweaked toml for git repo https://github.com/SilenceFox/vtt-backend written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/SilenceFox/vtt-backend on toolchain 779e19d8baa3e3625bd4fc5c85cbb2ad47b43155
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+779e19d8baa3e3625bd4fc5c85cbb2ad47b43155" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/SilenceFox/vtt-backend 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" "+779e19d8baa3e3625bd4fc5c85cbb2ad47b43155" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+779e19d8baa3e3625bd4fc5c85cbb2ad47b43155" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
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[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+779e19d8baa3e3625bd4fc5c85cbb2ad47b43155" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] [stdout] warning: unused imports: `error` and `info`
[INFO] [stdout]  --> src/main.rs:7:11
[INFO] [stdout]   |
[INFO] [stdout] 7 | use log::{error, info, LevelFilter};
[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 imports: `error` and `info`
[INFO] [stdout]  --> src/main.rs:7:11
[INFO] [stdout]   |
[INFO] [stdout] 7 | use log::{error, info, LevelFilter};
[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 variable: `new_user`
[INFO] [stdout]   --> src/chat.rs:36:18
[INFO] [stdout]    |
[INFO] [stdout] 36 |     fn user_join(new_user: User) {
[INFO] [stdout]    |                  ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_new_user`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `removed_user`
[INFO] [stdout]   --> src/chat.rs:39:19
[INFO] [stdout]    |
[INFO] [stdout] 39 |     fn user_leave(removed_user: User) {
[INFO] [stdout]    |                   ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_removed_user`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `new_user`
[INFO] [stdout]   --> src/chat.rs:36:18
[INFO] [stdout]    |
[INFO] [stdout] 36 |     fn user_join(new_user: User) {
[INFO] [stdout]    |                  ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_new_user`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `removed_user`
[INFO] [stdout]   --> src/chat.rs:39:19
[INFO] [stdout]    |
[INFO] [stdout] 39 |     fn user_leave(removed_user: User) {
[INFO] [stdout]    |                   ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_removed_user`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `users` is never read
[INFO] [stdout]   --> src/chat.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub(crate) struct Chat {
[INFO] [stdout]    |                   ---- field in this struct
[INFO] [stdout] 13 |     users: Vec<User>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Chat` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `user_join` and `user_leave` are never used
[INFO] [stdout]   --> src/chat.rs:36:8
[INFO] [stdout]    |
[INFO] [stdout] 29 | impl Chat {
[INFO] [stdout]    | --------- associated functions in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 36 |     fn user_join(new_user: User) {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 |     fn user_leave(removed_user: User) {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `delete_user` is never used
[INFO] [stdout]   --> src/chat.rs:72:12
[INFO] [stdout]    |
[INFO] [stdout] 64 | impl User {
[INFO] [stdout]    | --------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 72 |     pub fn delete_user(self) {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `users` is never read
[INFO] [stdout]   --> src/chat.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub(crate) struct Chat {
[INFO] [stdout]    |                   ---- field in this struct
[INFO] [stdout] 13 |     users: Vec<User>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Chat` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `user_join` and `user_leave` are never used
[INFO] [stdout]   --> src/chat.rs:36:8
[INFO] [stdout]    |
[INFO] [stdout] 29 | impl Chat {
[INFO] [stdout]    | --------- associated functions in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 36 |     fn user_join(new_user: User) {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 |     fn user_leave(removed_user: User) {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `delete_user` is never used
[INFO] [stdout]   --> src/chat.rs:72:12
[INFO] [stdout]    |
[INFO] [stdout] 64 | impl User {
[INFO] [stdout]    | --------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 72 |     pub fn delete_user(self) {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 41.58s
[INFO] running `Command { std: "docker" "inspect" "65c01729d820618f2d1a14250433d3657dfceda0c56b612e104a8c9220244c73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "65c01729d820618f2d1a14250433d3657dfceda0c56b612e104a8c9220244c73", kill_on_drop: false }`
[INFO] [stdout] 65c01729d820618f2d1a14250433d3657dfceda0c56b612e104a8c9220244c73