[INFO] cloning repository https://github.com/hibiscus-software/s7-protocol
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hibiscus-software/s7-protocol" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhibiscus-software%2Fs7-protocol", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhibiscus-software%2Fs7-protocol'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6c095a9e36f6e950c18685a23d6e3fd9196748f7
[INFO] checking hibiscus-software/s7-protocol against master#ad211ced81509462cdfe4c29ed10f97279a0acae for pr-135216-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhibiscus-software%2Fs7-protocol" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hibiscus-software/s7-protocol on toolchain ad211ced81509462cdfe4c29ed10f97279a0acae
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad211ced81509462cdfe4c29ed10f97279a0acae" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/hibiscus-software/s7-protocol
[INFO] finished tweaking git repo https://github.com/hibiscus-software/s7-protocol
[INFO] tweaked toml for git repo https://github.com/hibiscus-software/s7-protocol written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/hibiscus-software/s7-protocol 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" "+ad211ced81509462cdfe4c29ed10f97279a0acae" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+ad211ced81509462cdfe4c29ed10f97279a0acae" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2907fb39f80634080ec216de9d1322ac89f93ca4f567bd20b3c73d74a27fe834
[INFO] running `Command { std: "docker" "start" "-a" "2907fb39f80634080ec216de9d1322ac89f93ca4f567bd20b3c73d74a27fe834", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2907fb39f80634080ec216de9d1322ac89f93ca4f567bd20b3c73d74a27fe834", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2907fb39f80634080ec216de9d1322ac89f93ca4f567bd20b3c73d74a27fe834", kill_on_drop: false }`
[INFO] [stdout] 2907fb39f80634080ec216de9d1322ac89f93ca4f567bd20b3c73d74a27fe834
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+ad211ced81509462cdfe4c29ed10f97279a0acae" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5a368fa1bea6841bae48c610c3ac36e9035c6f16092bc832117ae54daf57e318
[INFO] running `Command { std: "docker" "start" "-a" "5a368fa1bea6841bae48c610c3ac36e9035c6f16092bc832117ae54daf57e318", kill_on_drop: false }`
[INFO] [stderr]     Checking s7-protocol v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait `Transport` is never used
[INFO] [stdout]  --> src/client/transport.rs:8:11
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub trait Transport {
[INFO] [stdout]   |           ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Connection` is never constructed
[INFO] [stdout]  --> src/error.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub enum Error {
[INFO] [stdout]   |          ----- variant in this enum
[INFO] [stdout] 9 |     Connection(String),
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Error` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Transport` is never used
[INFO] [stdout]  --> src/client/transport.rs:8:11
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub trait Transport {
[INFO] [stdout]   |           ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Connection` is never constructed
[INFO] [stdout]  --> src/error.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub enum Error {
[INFO] [stdout]   |          ----- variant in this enum
[INFO] [stdout] 9 |     Connection(String),
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Error` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] running `Command { std: "docker" "inspect" "5a368fa1bea6841bae48c610c3ac36e9035c6f16092bc832117ae54daf57e318", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a368fa1bea6841bae48c610c3ac36e9035c6f16092bc832117ae54daf57e318", kill_on_drop: false }`
[INFO] [stdout] 5a368fa1bea6841bae48c610c3ac36e9035c6f16092bc832117ae54daf57e318