[INFO] fetching crate yams 0.10.0...
[INFO] checking yams-0.10.0 against master#a3f76a26e045a760bb1163b7eab36872985242d5 for pr-130930
[INFO] extracting crate yams 0.10.0 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate yams 0.10.0 on toolchain a3f76a26e045a760bb1163b7eab36872985242d5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a3f76a26e045a760bb1163b7eab36872985242d5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate yams 0.10.0
[INFO] finished tweaking crates.io crate yams 0.10.0
[INFO] tweaked toml for crates.io crate yams 0.10.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate crates.io crate yams 0.10.0 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" "+a3f76a26e045a760bb1163b7eab36872985242d5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded parse_int v0.6.0
[INFO] [stderr]   Downloaded anyhow v1.0.53
[INFO] [stderr]   Downloaded serialport v4.0.1
[INFO] [stderr]   Downloaded clap_derive v3.0.12
[INFO] [stderr]   Downloaded serde_derive v1.0.135
[INFO] [stderr]   Downloaded serde v1.0.135
[INFO] [stderr]   Downloaded nix v0.16.1
[INFO] [stderr]   Downloaded socket2 v0.4.3
[INFO] [stderr]   Downloaded serde_yaml v0.8.23
[INFO] [stderr]   Downloaded tokio-modbus v0.5.2
[INFO] [stderr]   Downloaded clap v3.0.12
[INFO] [stderr]   Downloaded tokio-serial v5.4.1
[INFO] [stderr]   Downloaded mio-serial v5.0.1
[INFO] [stderr]   Downloaded libc v0.2.113
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+a3f76a26e045a760bb1163b7eab36872985242d5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e4b11a631c2d17d623b15b0e4e265aa58afb0af6f3d19d4f36de60e875684ad0
[INFO] running `Command { std: "docker" "start" "-a" "e4b11a631c2d17d623b15b0e4e265aa58afb0af6f3d19d4f36de60e875684ad0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e4b11a631c2d17d623b15b0e4e265aa58afb0af6f3d19d4f36de60e875684ad0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4b11a631c2d17d623b15b0e4e265aa58afb0af6f3d19d4f36de60e875684ad0", kill_on_drop: false }`
[INFO] [stdout] e4b11a631c2d17d623b15b0e4e265aa58afb0af6f3d19d4f36de60e875684ad0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+a3f76a26e045a760bb1163b7eab36872985242d5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dc4a142005021f4666518e11e2fa77e7e328fa054897df573542e420d66763fb
[INFO] running `Command { std: "docker" "start" "-a" "dc4a142005021f4666518e11e2fa77e7e328fa054897df573542e420d66763fb", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling libc v0.2.113
[INFO] [stderr]    Compiling futures-core v0.3.19
[INFO] [stderr]    Compiling futures-channel v0.3.19
[INFO] [stderr]     Checking pin-project-lite v0.2.8
[INFO] [stderr]    Compiling futures-task v0.3.19
[INFO] [stderr]     Checking futures-sink v0.3.19
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling nix v0.16.1
[INFO] [stderr]    Compiling futures-util v0.3.19
[INFO] [stderr]     Checking futures-io v0.3.19
[INFO] [stderr]    Compiling indexmap v1.8.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling serde_derive v1.0.135
[INFO] [stderr]    Compiling async-trait v0.1.52
[INFO] [stderr]    Compiling serde v1.0.135
[INFO] [stderr]    Compiling anyhow v1.0.53
[INFO] [stderr]     Checking os_str_bytes v6.0.0
[INFO] [stderr]     Checking ryu v1.0.9
[INFO] [stderr]     Checking textwrap v0.14.2
[INFO] [stderr]     Checking smallvec v1.8.0
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking parse_int v0.6.0
[INFO] [stderr]     Checking float-cmp v0.9.0
[INFO] [stderr]     Checking mio v0.7.14
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking nix v0.22.3
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking socket2 v0.4.3
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking serialport v4.0.1
[INFO] [stderr]     Checking mio-serial v5.0.1
[INFO] [stderr]    Compiling futures-macro v0.3.19
[INFO] [stderr]    Compiling tokio-macros v1.7.0
[INFO] [stderr]    Compiling clap_derive v3.0.12
[INFO] [stderr]     Checking tokio v1.15.0
[INFO] [stderr]     Checking clap v3.0.12
[INFO] [stderr]     Checking tokio-util v0.6.9
[INFO] [stderr]     Checking futures-executor v0.3.19
[INFO] [stderr]     Checking futures v0.3.19
[INFO] [stderr]     Checking tokio-serial v5.4.1
[INFO] [stderr]     Checking tokio-modbus v0.5.2
[INFO] [stderr]     Checking serde_yaml v0.8.23
[INFO] [stderr]     Checking yams v0.10.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `register_data` is never read
[INFO] [stdout]    --> src/config.rs:164:9
[INFO] [stdout]     |
[INFO] [stdout] 160 | pub struct ModbusClientConfig {
[INFO] [stdout]     |            ------------------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 164 |     pub register_data: Option<ModbusRegisterDatabase>,
[INFO] [stdout]     |         ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ModbusClientConfig` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `register_data` is never read
[INFO] [stdout]    --> src/config.rs:164:9
[INFO] [stdout]     |
[INFO] [stdout] 160 | pub struct ModbusClientConfig {
[INFO] [stdout]     |            ------------------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 164 |     pub register_data: Option<ModbusRegisterDatabase>,
[INFO] [stdout]     |         ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ModbusClientConfig` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[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 36.31s
[INFO] running `Command { std: "docker" "inspect" "dc4a142005021f4666518e11e2fa77e7e328fa054897df573542e420d66763fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc4a142005021f4666518e11e2fa77e7e328fa054897df573542e420d66763fb", kill_on_drop: false }`
[INFO] [stdout] dc4a142005021f4666518e11e2fa77e7e328fa054897df573542e420d66763fb