[INFO] crate census2csv 0.1.2 is already in cache
[INFO] checking census2csv-0.1.2 against try#f149601db42efe10ece8b284ab681fd4a6fcb89c for pr-68766
[INFO] extracting crate census2csv 0.1.2 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate census2csv 0.1.2 on toolchain f149601db42efe10ece8b284ab681fd4a6fcb89c
[INFO] running `"/workspace/cargo-home/bin/cargo" "+f149601db42efe10ece8b284ab681fd4a6fcb89c" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate census2csv 0.1.2
[INFO] finished tweaking crates.io crate census2csv 0.1.2
[INFO] tweaked toml for crates.io crate census2csv 0.1.2 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate crates.io crate census2csv 0.1.2 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+f149601db42efe10ece8b284ab681fd4a6fcb89c" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+f149601db42efe10ece8b284ab681fd4a6fcb89c" "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] 8256599c9e136d5bfbcd5cf1fad687f8cc4b87f87e171c8c68381f3bda6e7a44
[INFO] running `"docker" "start" "-a" "8256599c9e136d5bfbcd5cf1fad687f8cc4b87f87e171c8c68381f3bda6e7a44"`
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling serde_derive v1.0.101
[INFO] [stderr]     Checking serde v1.0.101
[INFO] [stderr]     Checking serde_json v1.0.40
[INFO] [stderr]     Checking census-proteomics v0.1.8
[INFO] [stderr]     Checking census2csv v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `f`
[INFO] [stderr]    --> src/main.rs:184:13
[INFO] [stderr]     |
[INFO] [stderr] 184 |     let mut f = fs::File::create("filter.json")
[INFO] [stderr]     |             ^ help: consider prefixing with an underscore: `_f`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:184:9
[INFO] [stderr]     |
[INFO] [stderr] 184 |     let mut f = fs::File::create("filter.json")
[INFO] [stderr]     |         ----^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `generate_example`
[INFO] [stderr]    --> src/main.rs:174:4
[INFO] [stderr]     |
[INFO] [stderr] 174 | fn generate_example() {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `f`
[INFO] [stderr]    --> src/main.rs:184:13
[INFO] [stderr]     |
[INFO] [stderr] 184 |     let mut f = fs::File::create("filter.json")
[INFO] [stderr]     |             ^ help: consider prefixing with an underscore: `_f`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:184:9
[INFO] [stderr]     |
[INFO] [stderr] 184 |     let mut f = fs::File::create("filter.json")
[INFO] [stderr]     |         ----^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `generate_example`
[INFO] [stderr]    --> src/main.rs:174:4
[INFO] [stderr]     |
[INFO] [stderr] 174 | fn generate_example() {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 35.08s
[INFO] running `"docker" "inspect" "8256599c9e136d5bfbcd5cf1fad687f8cc4b87f87e171c8c68381f3bda6e7a44"`
[INFO] running `"docker" "rm" "-f" "8256599c9e136d5bfbcd5cf1fad687f8cc4b87f87e171c8c68381f3bda6e7a44"`
[INFO] [stdout] 8256599c9e136d5bfbcd5cf1fad687f8cc4b87f87e171c8c68381f3bda6e7a44