[INFO] cloning repository https://github.com/dimitropoulos/rust-websockets-raw-tcp [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dimitropoulos/rust-websockets-raw-tcp" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdimitropoulos%2Frust-websockets-raw-tcp", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdimitropoulos%2Frust-websockets-raw-tcp'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] eac778143d88f6150ac3a9d709a2b3d68e5bd762 [INFO] checking dimitropoulos/rust-websockets-raw-tcp against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdimitropoulos%2Frust-websockets-raw-tcp" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/dimitropoulos/rust-websockets-raw-tcp 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/dimitropoulos/rust-websockets-raw-tcp [INFO] finished tweaking git repo https://github.com/dimitropoulos/rust-websockets-raw-tcp [INFO] tweaked toml for git repo https://github.com/dimitropoulos/rust-websockets-raw-tcp written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/dimitropoulos/rust-websockets-raw-tcp 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: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"` [INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest [INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest [INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded sha1 v0.10.1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] c42369aa632d330576f6aecfe115a68811df303abfe4415451eefdfade2b36d3 [INFO] running `Command { std: "docker" "start" "-a" "c42369aa632d330576f6aecfe115a68811df303abfe4415451eefdfade2b36d3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "c42369aa632d330576f6aecfe115a68811df303abfe4415451eefdfade2b36d3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c42369aa632d330576f6aecfe115a68811df303abfe4415451eefdfade2b36d3", kill_on_drop: false }` [INFO] [stdout] c42369aa632d330576f6aecfe115a68811df303abfe4415451eefdfade2b36d3 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 26088b888e088a11a7210c2703302ccab75923e36e10c92f9b77e19ff7acbb25 [INFO] running `Command { std: "docker" "start" "-a" "26088b888e088a11a7210c2703302ccab75923e36e10c92f9b77e19ff7acbb25", kill_on_drop: false }` [INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"` [INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest [INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest [INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions [INFO] [stderr] Compiling libc v0.2.126 [INFO] [stderr] Compiling typenum v1.15.0 [INFO] [stderr] Compiling generic-array v0.14.5 [INFO] [stderr] Compiling proc-macro2 v1.0.39 [INFO] [stderr] Compiling unicode-ident v1.0.0 [INFO] [stderr] Compiling syn v1.0.95 [INFO] [stderr] Checking byteorder v1.4.3 [INFO] [stderr] Checking ppv-lite86 v0.2.16 [INFO] [stderr] Checking itoa v0.4.8 [INFO] [stderr] Checking cpufeatures v0.2.2 [INFO] [stderr] Checking base64 v0.13.0 [INFO] [stderr] Checking client v0.1.0 (/opt/rustwide/workdir/client) [INFO] [stderr] Compiling quote v1.0.18 [INFO] [stderr] Checking getrandom v0.2.6 [INFO] [stderr] Checking iovec v0.1.4 [INFO] [stderr] Checking bytes v0.4.12 [INFO] [stderr] Checking rand_core v0.6.3 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking http v0.1.21 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Checking block-buffer v0.10.2 [INFO] [stderr] Checking crypto-common v0.1.3 [INFO] [stderr] Checking digest v0.10.3 [INFO] [stderr] Checking sha1 v0.10.1 [INFO] [stderr] Compiling thiserror-impl v1.0.31 [INFO] [stderr] Checking thiserror v1.0.31 [INFO] [stderr] Checking server v0.1.0 (/opt/rustwide/workdir/server) [INFO] [stdout] warning: the item `Result` is imported redundantly [INFO] [stdout] --> server/src/frame.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | result::Result, [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Result` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Result` is imported redundantly [INFO] [stdout] --> server/src/frame.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | result::Result, [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Result` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `size` [INFO] [stdout] --> server/src/main.rs:57:12 [INFO] [stdout] | [INFO] [stdout] 57 | Ok(size) => { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_size` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type alias `Result` is never used [INFO] [stdout] --> server/src/error.rs:12:10 [INFO] [stdout] | [INFO] [stdout] 12 | pub type Result = result::Result; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `set_random_mask` and `len` are never used [INFO] [stdout] --> server/src/frame.rs:144:19 [INFO] [stdout] | [INFO] [stdout] 143 | impl FrameHeader { [INFO] [stdout] | ---------------- methods in this implementation [INFO] [stdout] 144 | pub(crate) fn set_random_mask(&mut self) { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 231 | pub fn len(&self, length: u64) -> usize { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `len` is never used [INFO] [stdout] --> server/src/frame.rs:276:12 [INFO] [stdout] | [INFO] [stdout] 248 | impl Frame { [INFO] [stdout] | ---------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 276 | pub fn len(&self) -> usize { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `size` [INFO] [stdout] --> server/src/main.rs:57:12 [INFO] [stdout] | [INFO] [stdout] 57 | Ok(size) => { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_size` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type alias `Result` is never used [INFO] [stdout] --> server/src/error.rs:12:10 [INFO] [stdout] | [INFO] [stdout] 12 | pub type Result = result::Result; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `set_random_mask` and `len` are never used [INFO] [stdout] --> server/src/frame.rs:144:19 [INFO] [stdout] | [INFO] [stdout] 143 | impl FrameHeader { [INFO] [stdout] | ---------------- methods in this implementation [INFO] [stdout] 144 | pub(crate) fn set_random_mask(&mut self) { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 231 | pub fn len(&self, length: u64) -> usize { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `len` is never used [INFO] [stdout] --> server/src/frame.rs:276:12 [INFO] [stdout] | [INFO] [stdout] 248 | impl Frame { [INFO] [stdout] | ---------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 276 | pub fn len(&self) -> usize { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.16s [INFO] running `Command { std: "docker" "inspect" "26088b888e088a11a7210c2703302ccab75923e36e10c92f9b77e19ff7acbb25", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "26088b888e088a11a7210c2703302ccab75923e36e10c92f9b77e19ff7acbb25", kill_on_drop: false }` [INFO] [stdout] 26088b888e088a11a7210c2703302ccab75923e36e10c92f9b77e19ff7acbb25