[INFO] fetching crate coap-client 0.3.1... [INFO] checking coap-client-0.3.1 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577 [INFO] extracting crate coap-client 0.3.1 into /workspace/builds/worker-4-tc2/source [INFO] removed /workspace/builds/worker-4-tc2/source/.cargo/config [INFO] started tweaking crates.io crate coap-client 0.3.1 [INFO] finished tweaking crates.io crate coap-client 0.3.1 [INFO] tweaked toml for crates.io crate coap-client 0.3.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate coap-client 0.3.1 on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate crates.io crate coap-client 0.3.1 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 92281f7913741e5e0c9d63848f6a0ccc392ddcbc30e586b67f803d020c19c8d6 [INFO] running `Command { std: "docker" "start" "-a" "92281f7913741e5e0c9d63848f6a0ccc392ddcbc30e586b67f803d020c19c8d6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "92281f7913741e5e0c9d63848f6a0ccc392ddcbc30e586b67f803d020c19c8d6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "92281f7913741e5e0c9d63848f6a0ccc392ddcbc30e586b67f803d020c19c8d6", kill_on_drop: false }` [INFO] [stdout] 92281f7913741e5e0c9d63848f6a0ccc392ddcbc30e586b67f803d020c19c8d6 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 3583fb4b86c068a60cdf2838ab848f2143ae61513fc6b960099fa8249ea968ac [INFO] running `Command { std: "docker" "start" "-a" "3583fb4b86c068a60cdf2838ab848f2143ae61513fc6b960099fa8249ea968ac", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.105 [INFO] [stderr] Compiling proc-macro2 v1.0.32 [INFO] [stderr] Compiling syn v1.0.81 [INFO] [stderr] Compiling memchr v2.4.1 [INFO] [stderr] Compiling futures-core v0.3.17 [INFO] [stderr] Compiling cc v1.0.71 [INFO] [stderr] Compiling pkg-config v0.3.22 [INFO] [stderr] Compiling proc-macro-hack v0.5.19 [INFO] [stderr] Compiling futures-macro v0.3.17 [INFO] [stderr] Compiling proc-macro-nested v0.1.7 [INFO] [stderr] Compiling futures-channel v0.3.17 [INFO] [stderr] Compiling futures-task v0.3.17 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.4 [INFO] [stderr] Compiling futures-util v0.3.17 [INFO] [stderr] Compiling parking_lot_core v0.8.5 [INFO] [stderr] Checking futures-sink v0.3.17 [INFO] [stderr] Checking pin-project-lite v0.2.7 [INFO] [stderr] Checking instant v0.1.12 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Checking futures-io v0.3.17 [INFO] [stderr] Checking slab v0.4.5 [INFO] [stderr] Checking smallvec v1.7.0 [INFO] [stderr] Compiling unicode-segmentation v1.8.0 [INFO] [stderr] Checking tinyvec v1.5.0 [INFO] [stderr] Checking lock_api v0.4.5 [INFO] [stderr] Compiling tokio v1.12.0 [INFO] [stderr] Compiling openssl v0.10.37 [INFO] [stderr] Checking once_cell v1.8.0 [INFO] [stderr] Checking unicode-width v0.1.9 [INFO] [stderr] Checking matches v0.1.9 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Compiling anyhow v1.0.44 [INFO] [stderr] Checking ppv-lite86 v0.2.15 [INFO] [stderr] Compiling tokio-openssl v0.6.3 [INFO] [stderr] Checking bytes v1.1.0 [INFO] [stderr] Checking unicode-bidi v0.3.7 [INFO] [stderr] Compiling async-trait v0.1.51 [INFO] [stderr] Checking form_urlencoded v1.0.1 [INFO] [stderr] Checking termcolor v1.1.2 [INFO] [stderr] Checking hex v0.4.3 [INFO] [stderr] Checking humantime v2.1.0 [INFO] [stderr] Checking coap-lite v0.4.1 [INFO] [stderr] Compiling heck v0.3.3 [INFO] [stderr] Checking strum v0.22.0 [INFO] [stderr] Compiling openssl-sys v0.9.68 [INFO] [stderr] Checking getrandom v0.2.3 [INFO] [stderr] Checking signal-hook-registry v1.4.0 [INFO] [stderr] Checking time v0.1.43 [INFO] [stderr] Checking mio v0.7.14 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Compiling quote v1.0.10 [INFO] [stderr] Checking unicode-normalization v0.1.19 [INFO] [stderr] Checking clap v2.33.3 [INFO] [stderr] Checking parking_lot v0.11.2 [INFO] [stderr] Checking rand_core v0.6.3 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking chrono v0.4.19 [INFO] [stderr] Checking rand v0.8.4 [INFO] [stderr] Checking idna v0.2.3 [INFO] [stderr] Checking simplelog v0.9.0 [INFO] [stderr] Checking url v2.2.2 [INFO] [stderr] Compiling tokio-macros v1.5.0 [INFO] [stderr] Compiling thiserror-impl v1.0.30 [INFO] [stderr] Compiling structopt-derive v0.4.18 [INFO] [stderr] Compiling strum_macros v0.20.1 [INFO] [stderr] Checking thiserror v1.0.30 [INFO] [stderr] Checking structopt v0.3.25 [INFO] [stderr] Checking futures-executor v0.3.17 [INFO] [stderr] Checking futures v0.3.17 [INFO] [stderr] Checking coap-client v0.3.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `Future` [INFO] [stdout] --> src/backend/mod.rs:7:15 [INFO] [stdout] | [INFO] [stdout] 7 | use futures::{Future, Stream}; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Future` [INFO] [stdout] --> src/backend/mod.rs:7:15 [INFO] [stdout] | [INFO] [stdout] 7 | use futures::{Future, Stream}; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/lib.rs:30:5 [INFO] [stdout] | [INFO] [stdout] 30 | / /// CA certificate for TLS/DTLS modes [INFO] [stdout] 31 | | #[structopt(long)] [INFO] [stdout] 32 | | pub tls_ca: Option, [INFO] [stdout] | |______________________________^ [INFO] [stdout] | [INFO] [stdout] = note: requested on the command line with `-D unmustuse-in-always-ok` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/lib.rs:34:5 [INFO] [stdout] | [INFO] [stdout] 34 | / /// Client certificate for TLS/DTLS modes with client-auth [INFO] [stdout] 35 | | #[structopt(long)] [INFO] [stdout] 36 | | pub tls_cert: Option, [INFO] [stdout] | |________________________________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/lib.rs:38:5 [INFO] [stdout] | [INFO] [stdout] 38 | / /// Client key for TLS/DTLS modes with client-auth [INFO] [stdout] 39 | | #[structopt(long)] [INFO] [stdout] 40 | | pub tls_key: Option, [INFO] [stdout] | |_______________________________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/lib.rs:30:5 [INFO] [stdout] | [INFO] [stdout] 30 | / /// CA certificate for TLS/DTLS modes [INFO] [stdout] 31 | | #[structopt(long)] [INFO] [stdout] 32 | | pub tls_ca: Option, [INFO] [stdout] | |______________________________^ [INFO] [stdout] | [INFO] [stdout] = note: requested on the command line with `-D unmustuse-in-always-ok` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/lib.rs:34:5 [INFO] [stdout] | [INFO] [stdout] 34 | / /// Client certificate for TLS/DTLS modes with client-auth [INFO] [stdout] 35 | | #[structopt(long)] [INFO] [stdout] 36 | | pub tls_cert: Option, [INFO] [stdout] | |________________________________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/lib.rs:38:5 [INFO] [stdout] | [INFO] [stdout] 38 | / /// Client key for TLS/DTLS modes with client-auth [INFO] [stdout] 39 | | #[structopt(long)] [INFO] [stdout] 40 | | pub tls_key: Option, [INFO] [stdout] | |_______________________________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `coap-client` (lib) due to 3 previous errors; 1 warning emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: could not compile `coap-client` (lib test) due to 3 previous errors; 1 warning emitted [INFO] running `Command { std: "docker" "inspect" "3583fb4b86c068a60cdf2838ab848f2143ae61513fc6b960099fa8249ea968ac", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3583fb4b86c068a60cdf2838ab848f2143ae61513fc6b960099fa8249ea968ac", kill_on_drop: false }` [INFO] [stdout] 3583fb4b86c068a60cdf2838ab848f2143ae61513fc6b960099fa8249ea968ac