[INFO] cloning repository https://github.com/mattbieber/8-bit-bieber [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mattbieber/8-bit-bieber" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmattbieber%2F8-bit-bieber", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmattbieber%2F8-bit-bieber'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] aa5a47457410a15ad8275caf0ba6c524c87c27d8 [INFO] checking mattbieber/8-bit-bieber against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmattbieber%2F8-bit-bieber" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/mattbieber/8-bit-bieber 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/mattbieber/8-bit-bieber [INFO] finished tweaking git repo https://github.com/mattbieber/8-bit-bieber [INFO] tweaked toml for git repo https://github.com/mattbieber/8-bit-bieber written to /workspace/builds/worker-7-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/mattbieber/8-bit-bieber 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] warning: Found `debug_assertions` in `target.'cfg(...)'.dependencies`. This value is not supported for selecting dependencies and will not work as expected. To learn more visit https://doc.rust-lang.org/cargo/reference/specifying-dependencies.html#platform-specific-dependencies [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded futures v0.1.30 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] a2320beb0e8517827897647ee3c0ba8904256c4f3d59991bf2e702056c022b78 [INFO] running `Command { std: "docker" "start" "-a" "a2320beb0e8517827897647ee3c0ba8904256c4f3d59991bf2e702056c022b78", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a2320beb0e8517827897647ee3c0ba8904256c4f3d59991bf2e702056c022b78", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a2320beb0e8517827897647ee3c0ba8904256c4f3d59991bf2e702056c022b78", kill_on_drop: false }` [INFO] [stdout] a2320beb0e8517827897647ee3c0ba8904256c4f3d59991bf2e702056c022b78 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] fc03dbb6740dbe439130cceec72657cdea3d002a5b69413625293d25acefe172 [INFO] running `Command { std: "docker" "start" "-a" "fc03dbb6740dbe439130cceec72657cdea3d002a5b69413625293d25acefe172", kill_on_drop: false }` [INFO] [stderr] warning: Found `debug_assertions` in `target.'cfg(...)'.dependencies`. This value is not supported for selecting dependencies and will not work as expected. To learn more visit https://doc.rust-lang.org/cargo/reference/specifying-dependencies.html#platform-specific-dependencies [INFO] [stderr] Compiling proc-macro2 v1.0.24 [INFO] [stderr] Compiling unicode-xid v0.2.1 [INFO] [stderr] Compiling log v0.4.11 [INFO] [stderr] Compiling syn v1.0.48 [INFO] [stderr] Compiling wasm-bindgen-shared v0.2.68 [INFO] [stderr] Compiling cfg-if v0.1.10 [INFO] [stderr] Compiling lazy_static v1.4.0 [INFO] [stderr] Compiling bumpalo v3.4.0 [INFO] [stderr] Compiling wasm-bindgen v0.2.68 [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Checking futures v0.1.30 [INFO] [stderr] Checking scoped-tls v1.0.0 [INFO] [stderr] Compiling quote v1.0.7 [INFO] [stderr] Compiling quote v0.6.13 [INFO] [stderr] Compiling wasm-bindgen-test-macro v0.2.50 [INFO] [stderr] Compiling wasm-bindgen-backend v0.2.68 [INFO] [stderr] Compiling wasm-bindgen-macro-support v0.2.68 [INFO] [stderr] Compiling wasm-bindgen-macro v0.2.68 [INFO] [stderr] Checking js-sys v0.3.45 [INFO] [stderr] Checking console_error_panic_hook v0.1.6 [INFO] [stderr] Checking web-sys v0.3.45 [INFO] [stderr] Checking wasm-bindgen-futures v0.3.27 [INFO] [stderr] Checking wasm-bindgen-test v0.2.50 [INFO] [stderr] Checking rust-webpack-template v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/synth.rs:145:9 [INFO] [stdout] | [INFO] [stdout] 145 | self.primary.stop(); [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)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 145 | let _ = self.primary.stop(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/synth.rs:146:9 [INFO] [stdout] | [INFO] [stdout] 146 | self.fm_osc.stop(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 146 | let _ = self.fm_osc.stop(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/synth.rs:145:9 [INFO] [stdout] | [INFO] [stdout] 145 | self.primary.stop(); [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)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 145 | let _ = self.primary.stop(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/synth.rs:146:9 [INFO] [stdout] | [INFO] [stdout] 146 | self.fm_osc.stop(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 146 | let _ = self.fm_osc.stop(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.03s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: wasm-bindgen v0.2.68 [INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1` [INFO] running `Command { std: "docker" "inspect" "fc03dbb6740dbe439130cceec72657cdea3d002a5b69413625293d25acefe172", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fc03dbb6740dbe439130cceec72657cdea3d002a5b69413625293d25acefe172", kill_on_drop: false }` [INFO] [stdout] fc03dbb6740dbe439130cceec72657cdea3d002a5b69413625293d25acefe172 [INFO] checking mattbieber/8-bit-bieber against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmattbieber%2F8-bit-bieber" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/mattbieber/8-bit-bieber on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/mattbieber/8-bit-bieber [INFO] finished tweaking git repo https://github.com/mattbieber/8-bit-bieber [INFO] tweaked toml for git repo https://github.com/mattbieber/8-bit-bieber written to /workspace/builds/worker-7-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/mattbieber/8-bit-bieber 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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] warning: Found `debug_assertions` in `target.'cfg(...)'.dependencies`. This value is not supported for selecting dependencies and will not work as expected. To learn more visit https://doc.rust-lang.org/cargo/reference/specifying-dependencies.html#platform-specific-dependencies [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 8a9b3ca9a5a1b62f34e5dc150bd9601bf23bb59f1756989ca25081c856459fab [INFO] running `Command { std: "docker" "start" "-a" "8a9b3ca9a5a1b62f34e5dc150bd9601bf23bb59f1756989ca25081c856459fab", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "8a9b3ca9a5a1b62f34e5dc150bd9601bf23bb59f1756989ca25081c856459fab", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8a9b3ca9a5a1b62f34e5dc150bd9601bf23bb59f1756989ca25081c856459fab", kill_on_drop: false }` [INFO] [stdout] 8a9b3ca9a5a1b62f34e5dc150bd9601bf23bb59f1756989ca25081c856459fab [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] fb1a668e119c7932963dd1de8d7d367b0bce8b1dbbafb280de60c8f9fa020a2f [INFO] running `Command { std: "docker" "start" "-a" "fb1a668e119c7932963dd1de8d7d367b0bce8b1dbbafb280de60c8f9fa020a2f", kill_on_drop: false }` [INFO] [stderr] warning: Found `debug_assertions` in `target.'cfg(...)'.dependencies`. This value is not supported for selecting dependencies and will not work as expected. To learn more visit https://doc.rust-lang.org/cargo/reference/specifying-dependencies.html#platform-specific-dependencies [INFO] [stderr] Compiling proc-macro2 v1.0.24 [INFO] [stderr] Compiling unicode-xid v0.2.1 [INFO] [stderr] Compiling log v0.4.11 [INFO] [stderr] Compiling syn v1.0.48 [INFO] [stderr] Compiling wasm-bindgen-shared v0.2.68 [INFO] [stderr] Compiling cfg-if v0.1.10 [INFO] [stderr] Compiling lazy_static v1.4.0 [INFO] [stderr] Compiling bumpalo v3.4.0 [INFO] [stderr] Compiling wasm-bindgen v0.2.68 [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Checking futures v0.1.30 [INFO] [stderr] Checking scoped-tls v1.0.0 [INFO] [stderr] Compiling quote v0.6.13 [INFO] [stderr] Compiling quote v1.0.7 [INFO] [stderr] Compiling wasm-bindgen-test-macro v0.2.50 [INFO] [stderr] Compiling wasm-bindgen-backend v0.2.68 [INFO] [stderr] Compiling wasm-bindgen-macro-support v0.2.68 [INFO] [stderr] Compiling wasm-bindgen-macro v0.2.68 [INFO] [stderr] Checking js-sys v0.3.45 [INFO] [stderr] Checking console_error_panic_hook v0.1.6 [INFO] [stderr] Checking web-sys v0.3.45 [INFO] [stderr] Checking wasm-bindgen-futures v0.3.27 [INFO] [stderr] Checking wasm-bindgen-test v0.2.50 [INFO] [stderr] Checking rust-webpack-template v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/synth.rs:145:9 [INFO] [stdout] | [INFO] [stdout] 145 | self.primary.stop(); [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)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 145 | let _ = self.primary.stop(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/synth.rs:146:9 [INFO] [stdout] | [INFO] [stdout] 146 | self.fm_osc.stop(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 146 | let _ = self.fm_osc.stop(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/synth.rs:145:9 [INFO] [stdout] | [INFO] [stdout] 145 | self.primary.stop(); [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)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 145 | let _ = self.primary.stop(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/synth.rs:146:9 [INFO] [stdout] | [INFO] [stdout] 146 | self.fm_osc.stop(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 146 | let _ = self.fm_osc.stop(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.78s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: wasm-bindgen v0.2.68 [INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1` [INFO] running `Command { std: "docker" "inspect" "fb1a668e119c7932963dd1de8d7d367b0bce8b1dbbafb280de60c8f9fa020a2f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fb1a668e119c7932963dd1de8d7d367b0bce8b1dbbafb280de60c8f9fa020a2f", kill_on_drop: false }` [INFO] [stdout] fb1a668e119c7932963dd1de8d7d367b0bce8b1dbbafb280de60c8f9fa020a2f