[INFO] cloning repository https://github.com/rossf7/rust-k8s-test
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rossf7/rust-k8s-test" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frossf7%2Frust-k8s-test", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frossf7%2Frust-k8s-test'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a6a19bf807fe173f9c520da3ee064419be67a4a8
[INFO] checking rossf7/rust-k8s-test against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frossf7%2Frust-k8s-test" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rossf7/rust-k8s-test on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rossf7/rust-k8s-test
[INFO] finished tweaking git repo https://github.com/rossf7/rust-k8s-test
[INFO] tweaked toml for git repo https://github.com/rossf7/rust-k8s-test written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/rossf7/rust-k8s-test 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded sluice v0.5.4
[INFO] [stderr]   Downloaded curl v0.4.38
[INFO] [stderr]   Downloaded tinyvec v1.3.0
[INFO] [stderr]   Downloaded curl-sys v0.4.44+curl-7.77.0
[INFO] [stderr]   Downloaded isahc v1.4.0
[INFO] [stderr]   Downloaded libnghttp2-sys v0.1.6+1.43.0
[INFO] [stderr]   Downloaded k8s-openapi v0.12.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2dc86753d87c7add9494ac4534fff3b80e7d047c2c3c2287f06d18a792bc284f
[INFO] running `Command { std: "docker" "start" "-a" "2dc86753d87c7add9494ac4534fff3b80e7d047c2c3c2287f06d18a792bc284f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2dc86753d87c7add9494ac4534fff3b80e7d047c2c3c2287f06d18a792bc284f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2dc86753d87c7add9494ac4534fff3b80e7d047c2c3c2287f06d18a792bc284f", kill_on_drop: false }`
[INFO] [stdout] 2dc86753d87c7add9494ac4534fff3b80e7d047c2c3c2287f06d18a792bc284f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e352e1bf6e68383039a2c08fc830d2dbb8ecbf3383816afcdc38a4a45e8d22f5
[INFO] running `Command { std: "docker" "start" "-a" "e352e1bf6e68383039a2c08fc830d2dbb8ecbf3383816afcdc38a4a45e8d22f5", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.69
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking tinyvec v1.3.0
[INFO] [stderr]     Checking futures-io v0.3.15
[INFO] [stderr]    Compiling curl v0.4.38
[INFO] [stderr]     Checking cache-padded v1.1.1
[INFO] [stderr]    Compiling encoding_rs v0.8.28
[INFO] [stderr]     Checking ordered-float v2.7.0
[INFO] [stderr]     Checking parking v2.0.0
[INFO] [stderr]     Checking event-listener v2.5.1
[INFO] [stderr]     Checking waker-fn v1.1.0
[INFO] [stderr]    Compiling isahc v1.4.0
[INFO] [stderr]    Compiling k8s-openapi v0.12.0
[INFO] [stderr]     Checking mime v0.3.16
[INFO] [stderr]     Checking urlencoding v2.1.0
[INFO] [stderr]     Checking concurrent-queue v1.2.2
[INFO] [stderr]     Checking sluice v0.5.4
[INFO] [stderr]     Checking futures-lite v1.12.0
[INFO] [stderr]     Checking async-channel v1.6.1
[INFO] [stderr]    Compiling libz-sys v1.1.3
[INFO] [stderr]    Compiling openssl-sys v0.9.65
[INFO] [stderr]    Compiling libnghttp2-sys v0.1.6+1.43.0
[INFO] [stderr]    Compiling curl-sys v0.4.44+curl-7.77.0
[INFO] [stderr]     Checking unicode-normalization v0.1.19
[INFO] [stderr]     Checking socket2 v0.4.0
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking polling v2.1.0
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling tracing-attributes v0.1.15
[INFO] [stderr]    Compiling pin-project-internal v1.0.7
[INFO] [stderr]     Checking tracing v0.1.26
[INFO] [stderr]     Checking pin-project v1.0.7
[INFO] [stderr]     Checking tracing-futures v0.2.5
[INFO] [stderr]     Checking serde v1.0.126
[INFO] [stderr]     Checking serde_json v1.0.64
[INFO] [stderr]     Checking serde-value v0.7.0
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking rust-k8s-test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use serde_json;
[INFO] [stdout]   |     ^^^^^^^^^^ the item `serde_json` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use serde_json;
[INFO] [stdout]   |     ^^^^^^^^^^ the item `serde_json` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `container_id`, `container_name`, `namespace`, `labels`, and `pod_name` are never read
[INFO] [stdout]   --> src/main.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct K8sContainer {
[INFO] [stdout]    |        ------------ fields in this struct
[INFO] [stdout] 11 |     container_id: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 12 |     container_name: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 13 |     namespace: String,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 14 |     labels: BTreeMap<String, String>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 15 |     pod_name: String,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `K8sContainer` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over a `Result`. This is more readably written as an `if let` statement
[INFO] [stdout]   --> src/main.rs:21:14
[INFO] [stdout]    |
[INFO] [stdout] 21 |     for c in containers {
[INFO] [stdout]    |              ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(for_loops_over_fallibles)]` on by default
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]    |
[INFO] [stdout] 21 |     while let Ok(c) = containers {
[INFO] [stdout]    |     ~~~~~~~~~~~~~ ~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]    |
[INFO] [stdout] 21 |     if let Ok(c) = containers {
[INFO] [stdout]    |     ~~~~~~~~~~ ~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `container_id`, `container_name`, `namespace`, `labels`, and `pod_name` are never read
[INFO] [stdout]   --> src/main.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct K8sContainer {
[INFO] [stdout]    |        ------------ fields in this struct
[INFO] [stdout] 11 |     container_id: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 12 |     container_name: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 13 |     namespace: String,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 14 |     labels: BTreeMap<String, String>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 15 |     pod_name: String,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `K8sContainer` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over a `Result`. This is more readably written as an `if let` statement
[INFO] [stdout]   --> src/main.rs:21:14
[INFO] [stdout]    |
[INFO] [stdout] 21 |     for c in containers {
[INFO] [stdout]    |              ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(for_loops_over_fallibles)]` on by default
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]    |
[INFO] [stdout] 21 |     while let Ok(c) = containers {
[INFO] [stdout]    |     ~~~~~~~~~~~~~ ~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]    |
[INFO] [stdout] 21 |     if let Ok(c) = containers {
[INFO] [stdout]    |     ~~~~~~~~~~ ~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 33.07s
[INFO] running `Command { std: "docker" "inspect" "e352e1bf6e68383039a2c08fc830d2dbb8ecbf3383816afcdc38a4a45e8d22f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e352e1bf6e68383039a2c08fc830d2dbb8ecbf3383816afcdc38a4a45e8d22f5", kill_on_drop: false }`
[INFO] [stdout] e352e1bf6e68383039a2c08fc830d2dbb8ecbf3383816afcdc38a4a45e8d22f5