[INFO] cloning repository https://github.com/alirux/rust_examples
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/alirux/rust_examples" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falirux%2Frust_examples", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falirux%2Frust_examples'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cdf73e1f5682819925bff17ad5afce0ed12b8252
[INFO] checking alirux/rust_examples against master#5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f for pr-87248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falirux%2Frust_examples" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/alirux/rust_examples on toolchain 5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/alirux/rust_examples
[INFO] finished tweaking git repo https://github.com/alirux/rust_examples
[INFO] tweaked toml for git repo https://github.com/alirux/rust_examples written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/alirux/rust_examples already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 931f8da8e556a7ed23fa9c153a449437ab2c02874d55d90ec4f225f62cf688d3
[INFO] running `Command { std: "docker" "start" "-a" "931f8da8e556a7ed23fa9c153a449437ab2c02874d55d90ec4f225f62cf688d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "931f8da8e556a7ed23fa9c153a449437ab2c02874d55d90ec4f225f62cf688d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "931f8da8e556a7ed23fa9c153a449437ab2c02874d55d90ec4f225f62cf688d3", kill_on_drop: false }`
[INFO] [stdout] 931f8da8e556a7ed23fa9c153a449437ab2c02874d55d90ec4f225f62cf688d3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] af2e900f569b8e7dc915c0a81c284748df5ad1139d11ba50c3f1094f6a828ca0
[INFO] running `Command { std: "docker" "start" "-a" "af2e900f569b8e7dc915c0a81c284748df5ad1139d11ba50c3f1094f6a828ca0", kill_on_drop: false }`
[INFO] [stderr]     Checking rust_examples v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `created_on`
[INFO] [stdout]   --> src/bin/structs.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 24 |         created_on: String,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `created_by`
[INFO] [stdout]   --> src/bin/structs.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |         created_by: String,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `urgent`
[INFO] [stdout]   --> src/bin/structs.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 26 |         urgent: bool,
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `_enve1Copy` should have a snake case name
[INFO] [stdout]   --> src/bin/structs.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 39 |     let _enve1Copy = Envelope {
[INFO] [stdout]    |         ^^^^^^^^^^ help: convert the identifier to snake case: `_enve1_copy`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `INPROGRESS`
[INFO] [stdout]   --> src/bin/enum.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |         INPROGRESS,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `WORKED`
[INFO] [stdout]   --> src/bin/enum.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |         WORKED(String),
[INFO] [stdout]    |         ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `by`
[INFO] [stdout]   --> src/bin/enum.rs:15:17
[INFO] [stdout]    |
[INFO] [stdout] 15 |         STORED{ by: String, when: String },
[INFO] [stdout]    |                 ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `when`
[INFO] [stdout]   --> src/bin/enum.rs:15:29
[INFO] [stdout]    |
[INFO] [stdout] 15 |         STORED{ by: String, when: String },
[INFO] [stdout]    |                             ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `_enve1Copy` should have a snake case name
[INFO] [stdout]   --> src/bin/structs.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 39 |     let _enve1Copy = Envelope {
[INFO] [stdout]    |         ^^^^^^^^^^ help: convert the identifier to snake case: `_enve1_copy`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.12s
[INFO] running `Command { std: "docker" "inspect" "af2e900f569b8e7dc915c0a81c284748df5ad1139d11ba50c3f1094f6a828ca0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "af2e900f569b8e7dc915c0a81c284748df5ad1139d11ba50c3f1094f6a828ca0", kill_on_drop: false }`
[INFO] [stdout] af2e900f569b8e7dc915c0a81c284748df5ad1139d11ba50c3f1094f6a828ca0