[INFO] cloning repository https://github.com/syncjack/syncjack
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/syncjack/syncjack" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsyncjack%2Fsyncjack", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsyncjack%2Fsyncjack'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1bd23d4fedeb15b1ae3f9a8c91cffd6c89ecd9cd
[INFO] checking syncjack/syncjack against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsyncjack%2Fsyncjack" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/syncjack/syncjack 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/syncjack/syncjack
[INFO] finished tweaking git repo https://github.com/syncjack/syncjack
[INFO] tweaked toml for git repo https://github.com/syncjack/syncjack written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/syncjack/syncjack 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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.33
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.33
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.33
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.33
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.33
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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 }`
[INFO] [stdout] 6a57d2332a8f1b1093053c51ba73addf57dfd6c19ea6011950c42898fc5f8b04
[INFO] running `Command { std: "docker" "start" "-a" "6a57d2332a8f1b1093053c51ba73addf57dfd6c19ea6011950c42898fc5f8b04", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6a57d2332a8f1b1093053c51ba73addf57dfd6c19ea6011950c42898fc5f8b04", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a57d2332a8f1b1093053c51ba73addf57dfd6c19ea6011950c42898fc5f8b04", kill_on_drop: false }`
[INFO] [stdout] 6a57d2332a8f1b1093053c51ba73addf57dfd6c19ea6011950c42898fc5f8b04
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 2c01e9ed5818a4a541976aa1ed84ec652de42e28c61a0468948417598308ac08
[INFO] running `Command { std: "docker" "start" "-a" "2c01e9ed5818a4a541976aa1ed84ec652de42e28c61a0468948417598308ac08", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.27
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.33
[INFO] [stderr]    Compiling cfg-if v0.1.6
[INFO] [stderr]    Compiling lazy_static v1.2.0
[INFO] [stderr]    Compiling wasm-bindgen v0.2.33
[INFO] [stderr]     Checking svg v0.5.12
[INFO] [stderr]    Compiling log v0.4.6
[INFO] [stderr]    Compiling quote v0.6.11
[INFO] [stderr]    Compiling syn v0.15.26
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.33
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.33
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.33
[INFO] [stderr]     Checking syncjack2 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `pattern` and `strokes_per_minute` are never read
[INFO] [stdout]  --> src/pure/models.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct StrokeSettings {
[INFO] [stdout]   |            -------------- fields in this struct
[INFO] [stdout] 6 |     pub pattern: &'static StrokePattern,
[INFO] [stdout]   |         ^^^^^^^
[INFO] [stdout] 7 |     pub strokes_per_minute: i32,
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `strokes_per_cycle` and `path` are never read
[INFO] [stdout]   --> src/pure/models.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct StrokePattern {
[INFO] [stdout]    |            ------------- fields in this struct
[INFO] [stdout] 11 |     pub strokes_per_cycle: i32,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 12 |     pub path: Vec<(i32, i32)>,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::str::Bytes` that must be used
[INFO] [stdout]  --> src/impure/websocket_adaptor.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 |         url.bytes();
[INFO] [stdout]   |         ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: iterators are lazy and do nothing unless consumed
[INFO] [stdout]   = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]   |
[INFO] [stdout] 5 |         let _ = url.bytes();
[INFO] [stdout]   |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `pattern` and `strokes_per_minute` are never read
[INFO] [stdout]  --> src/pure/models.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct StrokeSettings {
[INFO] [stdout]   |            -------------- fields in this struct
[INFO] [stdout] 6 |     pub pattern: &'static StrokePattern,
[INFO] [stdout]   |         ^^^^^^^
[INFO] [stdout] 7 |     pub strokes_per_minute: i32,
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `strokes_per_cycle` and `path` are never read
[INFO] [stdout]   --> src/pure/models.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct StrokePattern {
[INFO] [stdout]    |            ------------- fields in this struct
[INFO] [stdout] 11 |     pub strokes_per_cycle: i32,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 12 |     pub path: Vec<(i32, i32)>,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::str::Bytes` that must be used
[INFO] [stdout]  --> src/impure/websocket_adaptor.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 |         url.bytes();
[INFO] [stdout]   |         ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: iterators are lazy and do nothing unless consumed
[INFO] [stdout]   = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]   |
[INFO] [stdout] 5 |         let _ = url.bytes();
[INFO] [stdout]   |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.29s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: svg v0.5.12, wasm-bindgen v0.2.33
[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" "2c01e9ed5818a4a541976aa1ed84ec652de42e28c61a0468948417598308ac08", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c01e9ed5818a4a541976aa1ed84ec652de42e28c61a0468948417598308ac08", kill_on_drop: false }`
[INFO] [stdout] 2c01e9ed5818a4a541976aa1ed84ec652de42e28c61a0468948417598308ac08