[INFO] updating cached repository sunilbandla/draw-charts
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/sunilbandla/draw-charts
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/sunilbandla/draw-charts" "work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/sunilbandla/draw-charts"`
[INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/sunilbandla/draw-charts'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/sunilbandla/draw-charts" "work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/sunilbandla/draw-charts"`
[INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/sunilbandla/draw-charts'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 3d390e19120a039de7dd013386ea39bc6a665312
[INFO] sha for GitHub repo sunilbandla/draw-charts: 3d390e19120a039de7dd013386ea39bc6a665312
[INFO] validating manifest of sunilbandla/draw-charts on toolchain master#0f88167f89fffe321590c5148f21b7d51d44388d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of sunilbandla/draw-charts on toolchain try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing sunilbandla/draw-charts
[INFO] finished frobbing sunilbandla/draw-charts
[INFO] frobbed toml for sunilbandla/draw-charts written to work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/sunilbandla/draw-charts/Cargo.toml
[INFO] started frobbing sunilbandla/draw-charts
[INFO] finished frobbing sunilbandla/draw-charts
[INFO] frobbed toml for sunilbandla/draw-charts written to work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/sunilbandla/draw-charts/Cargo.toml
[INFO] crate sunilbandla/draw-charts already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking sunilbandla/draw-charts against try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b for pr-58948
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58948/worker-6/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/sunilbandla/draw-charts:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 5cdfefa3e670b1eac131963b8e0277160df013683c34e7f7c996cbaaad9d46c3
[INFO] running `"docker" "start" "-a" "5cdfefa3e670b1eac131963b8e0277160df013683c34e7f7c996cbaaad9d46c3"`
[INFO] [stderr]    Compiling serde v1.0.66
[INFO] [stderr]    Compiling tempdir v0.3.7
[INFO] [stderr]    Compiling backtrace-sys v0.1.23
[INFO] [stderr]     Checking regex v0.2.11
[INFO] [stderr]     Checking chrono v0.4.3
[INFO] [stderr]    Compiling backtrace v0.3.8
[INFO] [stderr]    Compiling error-chain v0.11.0
[INFO] [stderr]     Checking serde_json v1.0.21
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling cargo_metadata v0.5.6
[INFO] [stderr]    Compiling skeptic v0.13.3
[INFO] [stderr]    Compiling liquid v0.13.7
[INFO] [stderr]     Checking gust v0.1.4
[INFO] [stderr]     Checking draw-charts v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/lib.rs:35:10
[INFO] [stderr]    |
[INFO] [stderr] 35 |     for (i, datapoint) in datapoints.iter().enumerate() {
[INFO] [stderr]    |          ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/lib.rs:35:10
[INFO] [stderr]    |
[INFO] [stderr] 35 |     for (i, datapoint) in datapoints.iter().enumerate() {
[INFO] [stderr]    |          ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `generate_sample_data`
[INFO] [stderr]   --> src/main.rs:35:1
[INFO] [stderr]    |
[INFO] [stderr] 35 | fn generate_sample_data() -> Vec<Vec<i64>> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `generate_sample_data`
[INFO] [stderr]   --> src/main.rs:35:1
[INFO] [stderr]    |
[INFO] [stderr] 35 | fn generate_sample_data() -> Vec<Vec<i64>> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 48.96s
[INFO] running `"docker" "inspect" "5cdfefa3e670b1eac131963b8e0277160df013683c34e7f7c996cbaaad9d46c3"`
[INFO] running `"docker" "rm" "-f" "5cdfefa3e670b1eac131963b8e0277160df013683c34e7f7c996cbaaad9d46c3"`
[INFO] [stdout] 5cdfefa3e670b1eac131963b8e0277160df013683c34e7f7c996cbaaad9d46c3