[INFO] cloning repository https://github.com/alirux/rust_examples
[INFO] running `"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"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falirux%2Frust_examples'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] cdf73e1f5682819925bff17ad5afce0ed12b8252
[INFO] checking alirux/rust_examples against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falirux%2Frust_examples" "/workspace/builds/worker-6/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/alirux/rust_examples on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[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-6/source/Cargo.toml
[INFO] crate git repo https://github.com/alirux/rust_examples already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f44a464af21fe215ce2b088e5df3571d4f5e59581a4c4f698d4afbf9d77d9755
[INFO] running `"docker" "start" "-a" "f44a464af21fe215ce2b088e5df3571d4f5e59581a4c4f698d4afbf9d77d9755"`
[INFO] [stderr]     Checking rust_examples v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: field is never used: `created_on`
[INFO] [stderr]   --> src/bin/structs.rs:24:9
[INFO] [stderr]    |
[INFO] [stderr] 24 |         created_on: String,
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `created_by`
[INFO] [stderr]   --> src/bin/structs.rs:25:9
[INFO] [stderr]    |
[INFO] [stderr] 25 |         created_by: String,
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `urgent`
[INFO] [stderr]   --> src/bin/structs.rs:26:9
[INFO] [stderr]    |
[INFO] [stderr] 26 |         urgent: bool,
[INFO] [stderr]    |         ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable `_enve1Copy` should have a snake case name
[INFO] [stderr]   --> src/bin/structs.rs:39:9
[INFO] [stderr]    |
[INFO] [stderr] 39 |     let _enve1Copy = Envelope {
[INFO] [stderr]    |         ^^^^^^^^^^ help: convert the identifier to snake case: `_enve1_copy`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `_enve1Copy` should have a snake case name
[INFO] [stderr]   --> src/bin/structs.rs:39:9
[INFO] [stderr]    |
[INFO] [stderr] 39 |     let _enve1Copy = Envelope {
[INFO] [stderr]    |         ^^^^^^^^^^ help: convert the identifier to snake case: `_enve1_copy`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `INPROGRESS`
[INFO] [stderr]   --> src/bin/enum.rs:12:9
[INFO] [stderr]    |
[INFO] [stderr] 12 |         INPROGRESS,
[INFO] [stderr]    |         ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `WORKED`
[INFO] [stderr]   --> src/bin/enum.rs:13:9
[INFO] [stderr]    |
[INFO] [stderr] 13 |         WORKED(String),
[INFO] [stderr]    |         ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `by`
[INFO] [stderr]   --> src/bin/enum.rs:15:17
[INFO] [stderr]    |
[INFO] [stderr] 15 |         STORED{ by: String, when: String },
[INFO] [stderr]    |                 ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `when`
[INFO] [stderr]   --> src/bin/enum.rs:15:29
[INFO] [stderr]    |
[INFO] [stderr] 15 |         STORED{ by: String, when: String },
[INFO] [stderr]    |                             ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.47s
[INFO] running `"docker" "inspect" "f44a464af21fe215ce2b088e5df3571d4f5e59581a4c4f698d4afbf9d77d9755"`
[INFO] running `"docker" "rm" "-f" "f44a464af21fe215ce2b088e5df3571d4f5e59581a4c4f698d4afbf9d77d9755"`
[INFO] [stdout] f44a464af21fe215ce2b088e5df3571d4f5e59581a4c4f698d4afbf9d77d9755