[INFO] cloning repository https://github.com/drogue-iot/drogue-event-source
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/drogue-iot/drogue-event-source" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdrogue-iot%2Fdrogue-event-source", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdrogue-iot%2Fdrogue-event-source'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4b1d72c8606256a985845b88ff09ee08d7fc236d
[INFO] checking drogue-iot/drogue-event-source against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdrogue-iot%2Fdrogue-event-source" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/drogue-iot/drogue-event-source on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/drogue-iot/drogue-event-source
[INFO] finished tweaking git repo https://github.com/drogue-iot/drogue-event-source
[INFO] tweaked toml for git repo https://github.com/drogue-iot/drogue-event-source written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/drogue-iot/drogue-event-source 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/cloudevents/sdk-rust`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded oauth2 v4.2.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5681e8a8f207c4f6c60aa2c22c4a69ccf3a3199fd04e234e2beeb740d6fac815
[INFO] running `Command { std: "docker" "start" "-a" "5681e8a8f207c4f6c60aa2c22c4a69ccf3a3199fd04e234e2beeb740d6fac815", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5681e8a8f207c4f6c60aa2c22c4a69ccf3a3199fd04e234e2beeb740d6fac815", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5681e8a8f207c4f6c60aa2c22c4a69ccf3a3199fd04e234e2beeb740d6fac815", kill_on_drop: false }`
[INFO] [stdout] 5681e8a8f207c4f6c60aa2c22c4a69ccf3a3199fd04e234e2beeb740d6fac815
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 909ba5830a90b24ddcadf4e1807bb9865c8917bbed30f6a3e5fd67f3a73b5f15
[INFO] running `Command { std: "docker" "start" "-a" "909ba5830a90b24ddcadf4e1807bb9865c8917bbed30f6a3e5fd67f3a73b5f15", kill_on_drop: false }`
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[INFO] [stderr]     Checking pin-project v1.0.11
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[INFO] [stderr]    Compiling delegate-attr v0.2.9
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[INFO] [stderr]     Checking config v0.12.0
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[INFO] [stderr]     Checking cloudevents-sdk v0.4.0 (https://github.com/cloudevents/sdk-rust?rev=5a9f64868dd8d2142f1e699da0d60f0601299b0b#5a9f6486)
[INFO] [stderr]     Checking drogue-event-source v0.2.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated functions `from_env_source` and `from_env_prefix` are never used
[INFO] [stdout]   --> src/config.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 8  | pub trait ConfigFromEnv<'de>: Sized + Deserialize<'de> {
[INFO] [stdout]    |           ------------- associated functions in this trait
[INFO] [stdout] ...
[INFO] [stdout] 13 |     fn from_env_source(source: HashMap<String, String>) -> Result<Self, config::ConfigError> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 17 |     fn from_env_prefix<S: AsRef<str>>(prefix: S) -> Result<Self, config::ConfigError> {
[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] [stdout] warning: associated function `from_env_prefix` is never used
[INFO] [stdout]   --> src/config.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 8  | pub trait ConfigFromEnv<'de>: Sized + Deserialize<'de> {
[INFO] [stdout]    |           ------------- associated function in this trait
[INFO] [stdout] ...
[INFO] [stdout] 17 |     fn from_env_prefix<S: AsRef<str>>(prefix: S) -> Result<Self, config::ConfigError> {
[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 16.09s
[INFO] running `Command { std: "docker" "inspect" "909ba5830a90b24ddcadf4e1807bb9865c8917bbed30f6a3e5fd67f3a73b5f15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "909ba5830a90b24ddcadf4e1807bb9865c8917bbed30f6a3e5fd67f3a73b5f15", kill_on_drop: false }`
[INFO] [stdout] 909ba5830a90b24ddcadf4e1807bb9865c8917bbed30f6a3e5fd67f3a73b5f15