[INFO] fetching crate mqtt-v5 0.1.1... [INFO] checking mqtt-v5-0.1.1 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] extracting crate mqtt-v5 0.1.1 into /workspace/builds/worker-3-tc1/source [INFO] validating manifest of crates.io crate mqtt-v5 0.1.1 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 mqtt-v5 0.1.1 [INFO] finished tweaking crates.io crate mqtt-v5 0.1.1 [INFO] tweaked toml for crates.io crate mqtt-v5 0.1.1 written to /workspace/builds/worker-3-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 36 packages [INFO] [stderr] Adding base64 v0.11.0 (latest: v0.22.0) [INFO] [stderr] Adding base64 v0.12.3 (latest: v0.22.0) [INFO] [stderr] Adding bytes v0.5.6 (latest: v1.6.0) [INFO] [stderr] Adding getrandom v0.1.16 (latest: v0.2.12) [INFO] [stderr] Adding num_enum v0.4.3 (latest: v0.7.2) [INFO] [stderr] Adding num_enum_derive v0.4.3 (latest: v0.7.2) [INFO] [stderr] Adding pin-project-lite v0.1.12 (latest: v0.2.14) [INFO] [stderr] Adding proc-macro-crate v0.1.5 (latest: v3.1.0) [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 sha1 v0.6.1 (latest: v0.10.6) [INFO] [stderr] Adding syn v1.0.109 (latest: v2.0.58) [INFO] [stderr] Adding tokio v0.2.25 (latest: v1.37.0) [INFO] [stderr] Adding tokio-util v0.3.1 (latest: v0.7.10) [INFO] [stderr] Adding toml v0.5.11 (latest: v0.8.12) [INFO] [stderr] Adding wasi v0.9.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0) [INFO] [stderr] Adding websocket-codec v0.3.5 (latest: v0.5.2) [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 websocket-codec v0.3.5 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 437b910539f29db1022dfd863e3ed5431b4d05218346c94b0c33f8d356dbbd76 [INFO] running `Command { std: "docker" "start" "-a" "437b910539f29db1022dfd863e3ed5431b4d05218346c94b0c33f8d356dbbd76", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "437b910539f29db1022dfd863e3ed5431b4d05218346c94b0c33f8d356dbbd76", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "437b910539f29db1022dfd863e3ed5431b4d05218346c94b0c33f8d356dbbd76", kill_on_drop: false }` [INFO] [stdout] 437b910539f29db1022dfd863e3ed5431b4d05218346c94b0c33f8d356dbbd76 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 2c6c6c6a9403319c490e0fa769e07eac317c506e3294d780050fd8a02473771d [INFO] running `Command { std: "docker" "start" "-a" "2c6c6c6a9403319c490e0fa769e07eac317c506e3294d780050fd8a02473771d", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.153 [INFO] [stderr] Compiling serde v1.0.197 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Checking bytes v0.5.6 [INFO] [stderr] Checking pin-project-lite v0.1.12 [INFO] [stderr] Checking sha1_smol v1.0.0 [INFO] [stderr] Checking byteorder v1.5.0 [INFO] [stderr] Checking base64 v0.12.3 [INFO] [stderr] Checking base64 v0.11.0 [INFO] [stderr] Checking sha1 v0.6.1 [INFO] [stderr] Checking tokio v0.2.25 [INFO] [stderr] Checking tokio-util v0.3.1 [INFO] [stderr] Checking getrandom v0.1.16 [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stderr] Checking rand_chacha v0.2.2 [INFO] [stderr] Checking rand v0.7.3 [INFO] [stderr] Checking websocket-codec v0.3.5 [INFO] [stderr] Compiling derivative v2.2.0 [INFO] [stderr] Compiling toml v0.5.11 [INFO] [stderr] Compiling proc-macro-crate v0.1.5 [INFO] [stderr] Compiling num_enum_derive v0.4.3 [INFO] [stderr] Checking num_enum v0.4.3 [INFO] [stderr] Checking mqtt-v5 v0.1.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `BytesMut` is imported redundantly [INFO] [stdout] --> src/decoder.rs:1157:9 [INFO] [stdout] | [INFO] [stdout] 1156 | use crate::{decoder::*, types::*}; [INFO] [stdout] | ---------- the item `BytesMut` is already imported here [INFO] [stdout] 1157 | use bytes::BytesMut; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `BytesMut` is imported redundantly [INFO] [stdout] --> src/encoder.rs:579:9 [INFO] [stdout] | [INFO] [stdout] 578 | use crate::{decoder::*, encoder::*, types::*}; [INFO] [stdout] | ---------- the item `BytesMut` is already imported here [INFO] [stdout] 579 | use bytes::BytesMut; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: panic message is not a string literal [INFO] [stdout] --> src/decoder.rs:1179:36 [INFO] [stdout] | [INFO] [stdout] 1179 | Err(err) => panic!(err), [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: `#[warn(non_fmt_panics)]` on by default [INFO] [stdout] help: add a "{:?}" format string to use the `Debug` implementation of `types::DecodeError` [INFO] [stdout] | [INFO] [stdout] 1179 | Err(err) => panic!("{:?}", err), [INFO] [stdout] | +++++++ [INFO] [stdout] help: or use std::panic::panic_any instead [INFO] [stdout] | [INFO] [stdout] 1179 | Err(err) => std::panic::panic_any(err), [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 13.50s [INFO] running `Command { std: "docker" "inspect" "2c6c6c6a9403319c490e0fa769e07eac317c506e3294d780050fd8a02473771d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2c6c6c6a9403319c490e0fa769e07eac317c506e3294d780050fd8a02473771d", kill_on_drop: false }` [INFO] [stdout] 2c6c6c6a9403319c490e0fa769e07eac317c506e3294d780050fd8a02473771d