[INFO] fetching crate std-embedded-nal 0.3.0...
[INFO] checking std-embedded-nal-0.3.0 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864
[INFO] extracting crate std-embedded-nal 0.3.0 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate std-embedded-nal 0.3.0 on toolchain 7014e13d5becc920d4bea3cd87942c8a13d359bf
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate std-embedded-nal 0.3.0
[INFO] finished tweaking crates.io crate std-embedded-nal 0.3.0
[INFO] tweaked toml for crates.io crate std-embedded-nal 0.3.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate crates.io crate std-embedded-nal 0.3.0 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" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] af8281865cf20c305beaf5cbdcbd3a612670ba18af042b41dd4ee7e330d5485e
[INFO] running `Command { std: "docker" "start" "-a" "af8281865cf20c305beaf5cbdcbd3a612670ba18af042b41dd4ee7e330d5485e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "af8281865cf20c305beaf5cbdcbd3a612670ba18af042b41dd4ee7e330d5485e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "af8281865cf20c305beaf5cbdcbd3a612670ba18af042b41dd4ee7e330d5485e", kill_on_drop: false }`
[INFO] [stdout] af8281865cf20c305beaf5cbdcbd3a612670ba18af042b41dd4ee7e330d5485e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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 -Dtail_expr_drop_order" "-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 32db9367f3862320cdd15a6fbd1385defeea536579240c2fa3becb4ef004bca9
[INFO] running `Command { std: "docker" "start" "-a" "32db9367f3862320cdd15a6fbd1385defeea536579240c2fa3becb4ef004bca9", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.155
[INFO] [stderr]     Checking no-std-net v0.6.0
[INFO] [stderr]     Checking nb v1.1.0
[INFO] [stderr]     Checking log v0.4.21
[INFO] [stderr]     Checking embedded-nal v0.8.0
[INFO] [stderr]     Checking std-embedded-nal v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking mio v0.8.11
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]  --> examples/coapclient.rs:9:4
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn run<S, E>(stack: &mut S) -> Result<(), E>
[INFO] [stdout]   |    ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.88s
[INFO] running `Command { std: "docker" "inspect" "32db9367f3862320cdd15a6fbd1385defeea536579240c2fa3becb4ef004bca9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "32db9367f3862320cdd15a6fbd1385defeea536579240c2fa3becb4ef004bca9", kill_on_drop: false }`
[INFO] [stdout] 32db9367f3862320cdd15a6fbd1385defeea536579240c2fa3becb4ef004bca9