[INFO] cloning repository https://github.com/varesa/robot-iounit [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/varesa/robot-iounit" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvaresa%2Frobot-iounit", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvaresa%2Frobot-iounit'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 240780083bef40b1e4492667877c9965bf65402b [INFO] checking varesa/robot-iounit against master#9bd71afb90c2a6e0348cdd4a2b10a3bf39908f19 for pr-117684-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvaresa%2Frobot-iounit" "/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/varesa/robot-iounit on toolchain 9bd71afb90c2a6e0348cdd4a2b10a3bf39908f19 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9bd71afb90c2a6e0348cdd4a2b10a3bf39908f19" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] removed /workspace/builds/worker-7-tc1/source/.cargo/config [INFO] started tweaking git repo https://github.com/varesa/robot-iounit [INFO] finished tweaking git repo https://github.com/varesa/robot-iounit [INFO] tweaked toml for git repo https://github.com/varesa/robot-iounit written to /workspace/builds/worker-7-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/varesa/robot-iounit 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" "+9bd71afb90c2a6e0348cdd4a2b10a3bf39908f19" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded panic-semihosting v0.5.4 [INFO] [stderr] Downloaded cortex-m-rt v0.6.13 [INFO] [stderr] Downloaded embedded-hal v0.2.4 [INFO] [stderr] Downloaded aligned v0.3.4 [INFO] [stderr] Downloaded cortex-m v0.6.4 [INFO] [stderr] Downloaded stm32l0 v0.12.1 [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@sha256:0c7e0e8312ad82a1bed3696438480b7da990d348377d3754e1cd95b06a8a36c7" "/opt/rustwide/cargo-home/bin/cargo" "+9bd71afb90c2a6e0348cdd4a2b10a3bf39908f19" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 850d3b5b3db36730abc6ca467f759ef54cb698b3af80a1e719f33f73cf09a092 [INFO] running `Command { std: "docker" "start" "-a" "850d3b5b3db36730abc6ca467f759ef54cb698b3af80a1e719f33f73cf09a092", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "850d3b5b3db36730abc6ca467f759ef54cb698b3af80a1e719f33f73cf09a092", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "850d3b5b3db36730abc6ca467f759ef54cb698b3af80a1e719f33f73cf09a092", kill_on_drop: false }` [INFO] [stdout] 850d3b5b3db36730abc6ca467f759ef54cb698b3af80a1e719f33f73cf09a092 [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@sha256:0c7e0e8312ad82a1bed3696438480b7da990d348377d3754e1cd95b06a8a36c7" "/opt/rustwide/cargo-home/bin/cargo" "+9bd71afb90c2a6e0348cdd4a2b10a3bf39908f19" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 0d1c3324e42dc1a16ddddce40095d51846628c692a517e7b236e769633b69dcd [INFO] running `Command { std: "docker" "start" "-a" "0d1c3324e42dc1a16ddddce40095d51846628c692a517e7b236e769633b69dcd", kill_on_drop: false }` [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Compiling typenum v1.12.0 [INFO] [stderr] Compiling cortex-m v0.6.4 [INFO] [stderr] Compiling version_check v0.9.2 [INFO] [stderr] Compiling proc-macro2 v1.0.24 [INFO] [stderr] Checking stable_deref_trait v1.2.0 [INFO] [stderr] Compiling unicode-xid v0.2.1 [INFO] [stderr] Checking vcell v0.1.2 [INFO] [stderr] Compiling syn v1.0.48 [INFO] [stderr] Checking bitfield v0.13.2 [INFO] [stderr] Compiling cortex-m-rt v0.6.13 [INFO] [stderr] Compiling cortex-m-semihosting v0.3.5 [INFO] [stderr] Checking r0 v0.2.2 [INFO] [stderr] Compiling stm32l0 v0.10.0 [INFO] [stderr] Checking nb v1.0.0 [INFO] [stderr] Compiling stm32l0 v0.12.1 [INFO] [stderr] Compiling stm32l0xx-hal v0.6.2 [INFO] [stderr] Checking volatile-register v0.2.0 [INFO] [stderr] Checking void v1.0.2 [INFO] [stderr] Checking nb v0.1.3 [INFO] [stderr] Checking embedded-hal v0.2.4 [INFO] [stderr] Compiling generic-array v0.14.4 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Compiling bare-metal v0.2.5 [INFO] [stderr] Compiling cast v0.2.3 [INFO] [stderr] Compiling quote v1.0.7 [INFO] [stderr] Checking generic-array v0.12.3 [INFO] [stderr] Checking generic-array v0.13.2 [INFO] [stderr] Checking as-slice v0.1.4 [INFO] [stderr] Checking aligned v0.3.4 [INFO] [stderr] Checking panic-semihosting v0.5.4 [INFO] [stderr] Compiling cortex-m-rt-macros v0.1.8 [INFO] [stderr] Checking stm32f1-hello v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:70:5 [INFO] [stdout] | [INFO] [stdout] 70 | tx.write_str("Hello world"); [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] 70 | let _ = tx.write_str("Hello world"); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:96:13 [INFO] [stdout] | [INFO] [stdout] 96 | tx.write_str("OK\n"); [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] 96 | let _ = tx.write_str("OK\n"); [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/main.rs:70:5 [INFO] [stdout] | [INFO] [stdout] 70 | tx.write_str("Hello world"); [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] 70 | let _ = tx.write_str("Hello world"); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:96:13 [INFO] [stdout] | [INFO] [stdout] 96 | tx.write_str("OK\n"); [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] 96 | let _ = tx.write_str("OK\n"); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 24.72s [INFO] running `Command { std: "docker" "inspect" "0d1c3324e42dc1a16ddddce40095d51846628c692a517e7b236e769633b69dcd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0d1c3324e42dc1a16ddddce40095d51846628c692a517e7b236e769633b69dcd", kill_on_drop: false }` [INFO] [stdout] 0d1c3324e42dc1a16ddddce40095d51846628c692a517e7b236e769633b69dcd