[INFO] fetching crate netmod-tcp 0.4.0... [INFO] checking netmod-tcp-0.4.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] extracting crate netmod-tcp 0.4.0 into /workspace/builds/worker-5-tc1/source [INFO] validating manifest of crates.io crate netmod-tcp 0.4.0 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 crates.io crate netmod-tcp 0.4.0 [INFO] finished tweaking crates.io crate netmod-tcp 0.4.0 [INFO] tweaked toml for crates.io crate netmod-tcp 0.4.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 143 packages [INFO] [stderr] Adding as-slice v0.1.5 (latest: v0.2.1) [INFO] [stderr] Adding async-channel v1.9.0 (latest: v2.2.0) [INFO] [stderr] Adding async-io v1.13.0 (latest: v2.3.2) [INFO] [stderr] Adding async-lock v2.8.0 (latest: v3.3.0) [INFO] [stderr] Adding async-process v1.8.1 (latest: v2.2.0) [INFO] [stderr] Adding bitflags v1.3.2 (latest: v2.5.0) [INFO] [stderr] Adding blake2 v0.8.1 (latest: v0.10.6) [INFO] [stderr] Adding crypto-mac v0.7.0 (latest: v0.11.1) [INFO] [stderr] Adding digest v0.8.1 (latest: v0.10.7) [INFO] [stderr] Adding event-listener v2.5.3 (latest: v5.3.0) [INFO] [stderr] Adding event-listener v3.1.0 (latest: v5.3.0) [INFO] [stderr] Adding event-listener v4.0.3 (latest: v5.3.0) [INFO] [stderr] Adding event-listener-strategy v0.4.0 (latest: v0.5.1) [INFO] [stderr] Adding fastrand v1.9.0 (latest: v2.0.2) [INFO] [stderr] Adding futures-lite v1.13.0 (latest: v2.3.0) [INFO] [stderr] Adding generic-array v0.12.4 (latest: v1.0.0) [INFO] [stderr] Adding generic-array v0.13.3 (latest: v1.0.0) [INFO] [stderr] Adding generic-array v0.14.7 (latest: v1.0.0) [INFO] [stderr] Adding getrandom v0.1.16 (latest: v0.2.12) [INFO] [stderr] Adding gloo-timers v0.2.6 (latest: v0.3.0) [INFO] [stderr] Adding hash32 v0.1.1 (latest: v0.3.1) [INFO] [stderr] Adding heapless v0.5.6 (latest: v0.8.0) [INFO] [stderr] Adding io-lifetimes v1.0.11 (latest: v2.0.3) [INFO] [stderr] Adding linux-raw-sys v0.3.8 (latest: v0.6.4) [INFO] [stderr] Adding linux-raw-sys v0.4.13 (latest: v0.6.4) [INFO] [stderr] Adding opaque-debug v0.2.3 (latest: v0.3.1) [INFO] [stderr] Adding polling v2.8.0 (latest: v3.6.0) [INFO] [stderr] Adding postcard v0.4.3 (latest: v1.0.8) [INFO] [stderr] Adding postcard-cobs v0.1.5-pre (latest: v0.2.0) [INFO] [stderr] Adding rand v0.7.3 (latest: v0.8.5) [INFO] [stderr] Adding rand_chacha v0.2.2 (latest: v0.3.1) [INFO] [stderr] Adding rand_core v0.5.1 (latest: v0.6.4) [INFO] [stderr] Adding rand_hc v0.2.0 (latest: v0.3.2) [INFO] [stderr] Adding rustix v0.37.27 (latest: v0.38.32) [INFO] [stderr] Adding socket2 v0.4.10 (latest: v0.5.6) [INFO] [stderr] Adding subtle v1.0.0 (latest: v2.5.0) [INFO] [stderr] Adding syn v1.0.109 (latest: v2.0.58) [INFO] [stderr] Adding wasi v0.9.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0) [INFO] [stderr] Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0) [INFO] [stderr] Adding windows-sys v0.48.0 (latest: v0.52.0) [INFO] [stderr] Adding windows-targets v0.48.5 (latest: v0.52.4) [INFO] [stderr] Adding windows_aarch64_gnullvm v0.48.5 (latest: v0.52.4) [INFO] [stderr] Adding windows_aarch64_msvc v0.48.5 (latest: v0.52.4) [INFO] [stderr] Adding windows_i686_gnu v0.48.5 (latest: v0.52.4) [INFO] [stderr] Adding windows_i686_msvc v0.48.5 (latest: v0.52.4) [INFO] [stderr] Adding windows_x86_64_gnu v0.48.5 (latest: v0.52.4) [INFO] [stderr] Adding windows_x86_64_gnullvm v0.48.5 (latest: v0.52.4) [INFO] [stderr] Adding windows_x86_64_msvc v0.48.5 (latest: v0.52.4) [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 postcard v0.4.3 [INFO] [stderr] Downloaded conjoiner-engine v1.2.3 [INFO] [stderr] Downloaded heapless v0.5.6 [INFO] [stderr] Downloaded postcard-cobs v0.1.5-pre [INFO] [stderr] Downloaded blake2 v0.8.1 [INFO] [stderr] Downloaded ratman-identity v0.6.2 [INFO] [stderr] Downloaded ratman-netmod v0.5.1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] dfa0703767d94a8ea71cf9ef7145dc1edac0a78f54ad80dce72bec976dfa4940 [INFO] running `Command { std: "docker" "start" "-a" "dfa0703767d94a8ea71cf9ef7145dc1edac0a78f54ad80dce72bec976dfa4940", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "dfa0703767d94a8ea71cf9ef7145dc1edac0a78f54ad80dce72bec976dfa4940", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "dfa0703767d94a8ea71cf9ef7145dc1edac0a78f54ad80dce72bec976dfa4940", kill_on_drop: false }` [INFO] [stdout] dfa0703767d94a8ea71cf9ef7145dc1edac0a78f54ad80dce72bec976dfa4940 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 5c2a95e78926528f805bebd70b70e1d2d8bab049132a963a54ab113dc72e098d [INFO] running `Command { std: "docker" "start" "-a" "5c2a95e78926528f805bebd70b70e1d2d8bab049132a963a54ab113dc72e098d", kill_on_drop: false }` [INFO] [stderr] Checking futures-lite v2.3.0 [INFO] [stderr] Checking log v0.4.21 [INFO] [stderr] Checking stable_deref_trait v1.2.0 [INFO] [stderr] Checking generic-array v0.12.4 [INFO] [stderr] Checking generic-array v0.13.3 [INFO] [stderr] Checking getrandom v0.2.12 [INFO] [stderr] Checking getrandom v0.1.16 [INFO] [stderr] Compiling heapless v0.5.6 [INFO] [stderr] Checking hash32 v0.1.1 [INFO] [stderr] Compiling serde_derive v1.0.197 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Checking polling v3.6.0 [INFO] [stderr] Checking subtle v1.0.0 [INFO] [stderr] Checking futures-lite v1.13.0 [INFO] [stderr] Checking async-channel v2.2.0 [INFO] [stderr] Checking piper v0.2.1 [INFO] [stderr] Checking signal-hook-registry v1.4.1 [INFO] [stderr] Checking postcard-cobs v0.1.5-pre [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stderr] Checking byte-tools v0.3.1 [INFO] [stderr] Checking rand_core v0.6.4 [INFO] [stderr] Checking opaque-debug v0.2.3 [INFO] [stderr] Checking event-listener v3.1.0 [INFO] [stderr] Checking digest v0.8.1 [INFO] [stderr] Checking crypto-mac v0.7.0 [INFO] [stderr] Checking static_assertions v1.1.0 [INFO] [stderr] Checking async-channel v1.9.0 [INFO] [stderr] Checking as-slice v0.1.5 [INFO] [stderr] Checking rand_chacha v0.2.2 [INFO] [stderr] Checking polling v2.8.0 [INFO] [stderr] Checking kv-log-macro v1.0.7 [INFO] [stderr] Checking blake2 v0.8.1 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking rand v0.7.3 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Checking async-io v2.3.2 [INFO] [stderr] Checking async-executor v1.9.1 [INFO] [stderr] Checking blocking v1.5.1 [INFO] [stderr] Checking async-io v1.13.0 [INFO] [stderr] Checking async-signal v0.2.5 [INFO] [stderr] Checking async-global-executor v2.4.1 [INFO] [stderr] Checking twox-hash v1.6.3 [INFO] [stderr] Checking async-process v1.8.1 [INFO] [stderr] Compiling async-attributes v1.1.2 [INFO] [stderr] Checking serde v1.0.197 [INFO] [stderr] Checking async-std v1.12.0 [INFO] [stderr] Checking ratman-identity v0.6.2 [INFO] [stderr] Checking bincode v1.3.3 [INFO] [stderr] Checking postcard v0.4.3 [INFO] [stderr] Checking conjoiner-engine v1.2.3 [INFO] [stderr] Checking ratman-netmod v0.5.1 [INFO] [stderr] Checking netmod-tcp v0.4.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `PartialEq` is imported redundantly [INFO] [stdout] --> src/ptr.rs:11:11 [INFO] [stdout] | [INFO] [stdout] 11 | use std::{cmp::PartialEq, ops::Deref}; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `PartialEq` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `netmod` is imported redundantly [INFO] [stdout] --> src/lib.rs:25:14 [INFO] [stdout] | [INFO] [stdout] 25 | use netmod::{self, Endpoint as EndpointExt, Frame, Target}; [INFO] [stdout] | ^^^^ the item `netmod` is already defined by prelude [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `netmod` is imported redundantly [INFO] [stdout] --> src/lib.rs:25:14 [INFO] [stdout] | [INFO] [stdout] 25 | use netmod::{self, Endpoint as EndpointExt, Frame, Target}; [INFO] [stdout] | ^^^^ the item `netmod` is already defined by prelude [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:102:17 [INFO] [stdout] | [INFO] [stdout] 102 | let mut parts: Vec<_> = p.split(|x| x == ' ').collect(); [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:102:17 [INFO] [stdout] | [INFO] [stdout] 102 | let mut parts: Vec<_> = p.split(|x| x == ' ').collect(); [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable pattern [INFO] [stdout] --> src/server.rs:156:17 [INFO] [stdout] | [INFO] [stdout] 156 | (state, packet) => panic!(format!("state={:?}, packet={:?}", state, packet)), [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_patterns)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable pattern [INFO] [stdout] --> src/server.rs:156:17 [INFO] [stdout] | [INFO] [stdout] 156 | (state, packet) => panic!(format!("state={:?}, packet={:?}", state, packet)), [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_patterns)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: panic message is not a string literal [INFO] [stdout] --> src/server.rs:156:43 [INFO] [stdout] | [INFO] [stdout] 156 | (state, packet) => panic!(format!("state={:?}, packet={:?}", state, packet)), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021 [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: the `panic!()` macro supports formatting, so there's no need for the `format!()` macro here [INFO] [stdout] = note: `#[warn(non_fmt_panics)]` on by default [INFO] [stdout] help: remove the `format!(..)` macro call [INFO] [stdout] | [INFO] [stdout] 156 - (state, packet) => panic!(format!("state={:?}, packet={:?}", state, packet)), [INFO] [stdout] 156 + (state, packet) => panic!("state={:?}, packet={:?}", state, packet), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: panic message is not a string literal [INFO] [stdout] --> src/server.rs:156:43 [INFO] [stdout] | [INFO] [stdout] 156 | (state, packet) => panic!(format!("state={:?}, packet={:?}", state, packet)), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021 [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: the `panic!()` macro supports formatting, so there's no need for the `format!()` macro here [INFO] [stdout] = note: `#[warn(non_fmt_panics)]` on by default [INFO] [stdout] help: remove the `format!(..)` macro call [INFO] [stdout] | [INFO] [stdout] 156 - (state, packet) => panic!(format!("state={:?}, packet={:?}", state, packet)), [INFO] [stdout] 156 + (state, packet) => panic!("state={:?}, packet={:?}", state, packet), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 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 12.85s [INFO] running `Command { std: "docker" "inspect" "5c2a95e78926528f805bebd70b70e1d2d8bab049132a963a54ab113dc72e098d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5c2a95e78926528f805bebd70b70e1d2d8bab049132a963a54ab113dc72e098d", kill_on_drop: false }` [INFO] [stdout] 5c2a95e78926528f805bebd70b70e1d2d8bab049132a963a54ab113dc72e098d