[INFO] cloning repository https://github.com/jochasinga/rusty-gun
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jochasinga/rusty-gun" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjochasinga%2Frusty-gun", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjochasinga%2Frusty-gun'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7ffab6f3a23781138c19568f79983d0c1fc8e14a
[INFO] checking jochasinga/rusty-gun against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjochasinga%2Frusty-gun" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jochasinga/rusty-gun on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jochasinga/rusty-gun
[INFO] finished tweaking git repo https://github.com/jochasinga/rusty-gun
[INFO] tweaked toml for git repo https://github.com/jochasinga/rusty-gun written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/jochasinga/rusty-gun 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "-a" "13d0575cfb669c83dd1b71edbb9afd11f9d8885fb35e7bb8503935b7c33e87e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "13d0575cfb669c83dd1b71edbb9afd11f9d8885fb35e7bb8503935b7c33e87e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "13d0575cfb669c83dd1b71edbb9afd11f9d8885fb35e7bb8503935b7c33e87e5", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 108cfc7edfe6fb24b029cd59d3b648108dfbff562978d09647d19974ec3703a5
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[INFO] [stdout] warning: the item `bincode` is imported redundantly
[INFO] [stdout]   --> src/gun/graph.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use bincode;
[INFO] [stdout]    |     ^^^^^^^ the item `bincode` is already defined by prelude
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `bincode` is imported redundantly
[INFO] [stdout]   --> src/gun/graph.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use bincode;
[INFO] [stdout]    |     ^^^^^^^ the item `bincode` is already defined by prelude
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `msg_str`
[INFO] [stdout]    --> src/gun/adapters/websocket_server.rs:150:71
[INFO] [stdout]     |
[INFO] [stdout] 150 | async fn user_message_item(my_id: usize, users: &Users, json: &Value, msg_str: &str) {
[INFO] [stdout]     |                                                                       ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_msg_str`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `msg_str`
[INFO] [stdout]    --> src/gun/adapters/websocket_server.rs:150:71
[INFO] [stdout]     |
[INFO] [stdout] 150 | async fn user_message_item(my_id: usize, users: &Users, json: &Value, msg_str: &str) {
[INFO] [stdout]     |                                                                       ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_msg_str`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Dam` is never constructed
[INFO] [stdout]   --> src/gun/dam.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct Dam;
[INFO] [stdout]    |        ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `hear`, `hear_one`, and `say` are never used
[INFO] [stdout]   --> src/gun/dam.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl Dam {
[INFO] [stdout]    | -------- associated functions in this implementation
[INFO] [stdout] 12 |     fn hear(msg: Object, _peer: &mut Object, gun: &Gun) -> Result<(), String> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 69 |     fn hear_one(_msg: Box<dyn Message>, _peer: &mut Object) {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 73 |     fn say(_msg: &mut Object, _peer: &mut Object) {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Message` is never used
[INFO] [stdout]   --> src/gun/message.rs:41:18
[INFO] [stdout]    |
[INFO] [stdout] 41 | pub(crate) trait Message {
[INFO] [stdout]    |                  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Dam` is never constructed
[INFO] [stdout]   --> src/gun/dam.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct Dam;
[INFO] [stdout]    |        ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `hear`, `hear_one`, and `say` are never used
[INFO] [stdout]   --> src/gun/dam.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl Dam {
[INFO] [stdout]    | -------- associated functions in this implementation
[INFO] [stdout] 12 |     fn hear(msg: Object, _peer: &mut Object, gun: &Gun) -> Result<(), String> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 69 |     fn hear_one(_msg: Box<dyn Message>, _peer: &mut Object) {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 73 |     fn say(_msg: &mut Object, _peer: &mut Object) {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Message` is never used
[INFO] [stdout]   --> src/gun/message.rs:41:18
[INFO] [stdout]    |
[INFO] [stdout] 41 | pub(crate) trait Message {
[INFO] [stdout]    |                  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 19.34s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: buf_redux v0.8.4, multipart v0.17.1
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "108cfc7edfe6fb24b029cd59d3b648108dfbff562978d09647d19974ec3703a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "108cfc7edfe6fb24b029cd59d3b648108dfbff562978d09647d19974ec3703a5", kill_on_drop: false }`
[INFO] [stdout] 108cfc7edfe6fb24b029cd59d3b648108dfbff562978d09647d19974ec3703a5