[INFO] fetching crate lora_serial 0.3.2...
[INFO] checking lora_serial-0.3.2 against try#9cfe725f0995b018340c519db1b2f3cf8a7e0631 for pr-81174
[INFO] extracting crate lora_serial 0.3.2 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate lora_serial 0.3.2 on toolchain 9cfe725f0995b018340c519db1b2f3cf8a7e0631
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate lora_serial 0.3.2
[INFO] finished tweaking crates.io crate lora_serial 0.3.2
[INFO] tweaked toml for crates.io crate lora_serial 0.3.2 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded strsim v0.7.0
[INFO] [stderr]   Downloaded libudev-sys v0.1.4
[INFO] [stderr]   Downloaded libudev v0.2.0
[INFO] [stderr]   Downloaded derive_builder v0.7.2
[INFO] [stderr]   Downloaded darling_macro v0.9.0
[INFO] [stderr]   Downloaded darling v0.9.0
[INFO] [stderr]   Downloaded derive_builder_core v0.5.0
[INFO] [stderr]   Downloaded darling_core v0.9.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 1dfa12976af5ab3faf1979477f3bfe58c0bbf0cded0c289358500ab358846b3c
[INFO] running `Command { std: "docker" "start" "-a" "1dfa12976af5ab3faf1979477f3bfe58c0bbf0cded0c289358500ab358846b3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1dfa12976af5ab3faf1979477f3bfe58c0bbf0cded0c289358500ab358846b3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1dfa12976af5ab3faf1979477f3bfe58c0bbf0cded0c289358500ab358846b3c", kill_on_drop: false }`
[INFO] [stdout] 1dfa12976af5ab3faf1979477f3bfe58c0bbf0cded0c289358500ab358846b3c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7b8360f60f9ae3e58d619b920d105f2052bb6bafbaa0929f65bc50754dc6dda3
[INFO] running `Command { std: "docker" "start" "-a" "7b8360f60f9ae3e58d619b920d105f2052bb6bafbaa0929f65bc50754dc6dda3", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling strsim v0.7.0
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling log v0.4.13
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling derive_builder v0.7.2
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking libudev v0.2.0
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking serialport v3.3.0
[INFO] [stderr]    Compiling darling_core v0.9.0
[INFO] [stderr]    Compiling darling_macro v0.9.0
[INFO] [stderr]    Compiling darling v0.9.0
[INFO] [stderr]    Compiling derive_builder_core v0.5.0
[INFO] [stderr]     Checking lora_serial v0.3.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `debug`
[INFO] [stdout]  --> src/lib.rs:3:11
[INFO] [stdout]   |
[INFO] [stdout] 3 | use log::{debug, log_enabled, trace, Level::*};
[INFO] [stdout]   |           ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `debug`
[INFO] [stdout]  --> src/lib.rs:3:11
[INFO] [stdout]   |
[INFO] [stdout] 3 | use log::{debug, log_enabled, trace, Level::*};
[INFO] [stdout]   |           ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 39.87s
[INFO] running `Command { std: "docker" "inspect" "7b8360f60f9ae3e58d619b920d105f2052bb6bafbaa0929f65bc50754dc6dda3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b8360f60f9ae3e58d619b920d105f2052bb6bafbaa0929f65bc50754dc6dda3", kill_on_drop: false }`
[INFO] [stdout] 7b8360f60f9ae3e58d619b920d105f2052bb6bafbaa0929f65bc50754dc6dda3