[INFO] updating cached repository karuna/hangar
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/karuna/hangar
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/karuna/hangar" "work/ex/pr-61753/sources/master#8e948df707ea8a3c88c65bf2ffdcb2f1cf5491be/gh/karuna/hangar"`
[INFO] [stderr] Cloning into 'work/ex/pr-61753/sources/master#8e948df707ea8a3c88c65bf2ffdcb2f1cf5491be/gh/karuna/hangar'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/karuna/hangar" "work/ex/pr-61753/sources/try#af22dfc7f56a5057c6b6120a65c74e7b6c1530af/gh/karuna/hangar"`
[INFO] [stderr] Cloning into 'work/ex/pr-61753/sources/try#af22dfc7f56a5057c6b6120a65c74e7b6c1530af/gh/karuna/hangar'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f5ac697b9301d6f4f646fecc49849a2b354d4ddf
[INFO] sha for GitHub repo karuna/hangar: f5ac697b9301d6f4f646fecc49849a2b354d4ddf
[INFO] validating manifest of karuna/hangar on toolchain master#8e948df707ea8a3c88c65bf2ffdcb2f1cf5491be
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8e948df707ea8a3c88c65bf2ffdcb2f1cf5491be-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of karuna/hangar on toolchain try#af22dfc7f56a5057c6b6120a65c74e7b6c1530af
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+af22dfc7f56a5057c6b6120a65c74e7b6c1530af-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing karuna/hangar
[INFO] finished frobbing karuna/hangar
[INFO] frobbed toml for karuna/hangar written to work/ex/pr-61753/sources/master#8e948df707ea8a3c88c65bf2ffdcb2f1cf5491be/gh/karuna/hangar/Cargo.toml
[INFO] started frobbing karuna/hangar
[INFO] finished frobbing karuna/hangar
[INFO] frobbed toml for karuna/hangar written to work/ex/pr-61753/sources/try#af22dfc7f56a5057c6b6120a65c74e7b6c1530af/gh/karuna/hangar/Cargo.toml
[INFO] crate karuna/hangar already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8e948df707ea8a3c88c65bf2ffdcb2f1cf5491be-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+af22dfc7f56a5057c6b6120a65c74e7b6c1530af-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking karuna/hangar against try#af22dfc7f56a5057c6b6120a65c74e7b6c1530af for pr-61753
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61753/worker-2/try#af22dfc7f56a5057c6b6120a65c74e7b6c1530af:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61753/sources/try#af22dfc7f56a5057c6b6120a65c74e7b6c1530af/gh/karuna/hangar:/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" "+af22dfc7f56a5057c6b6120a65c74e7b6c1530af-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 1da3fe88dedd2539e66e87c429e591a91691b339f019651152819294ac1d552e
[INFO] running `"docker" "start" "-a" "1da3fe88dedd2539e66e87c429e591a91691b339f019651152819294ac1d552e"`
[INFO] [stderr]    Compiling cc v1.0.6
[INFO] [stderr]     Checking serde v1.0.29
[INFO] [stderr]     Checking num-integer v0.1.36
[INFO] [stderr]     Checking regex-syntax v0.5.0
[INFO] [stderr]     Checking serde_json v0.9.10
[INFO] [stderr]    Compiling pest_derive v1.0.6
[INFO] [stderr]     Checking num-iter v0.1.35
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking chrono v0.4.0
[INFO] [stderr]     Checking cargo_metadata v0.1.2
[INFO] [stderr]    Compiling backtrace-sys v0.1.16
[INFO] [stderr]     Checking regex v0.2.7
[INFO] [stderr]     Checking cargo-shim v0.1.5
[INFO] [stderr]     Checking serde_json v1.0.11
[INFO] [stderr]     Checking backtrace v0.3.5
[INFO] [stderr]     Checking error-chain v0.11.0
[INFO] [stderr]     Checking tera v0.11.5
[INFO] [stderr]     Checking hangar v0.0.4 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `matches`
[INFO] [stderr]   --> src/main.rs:37:54
[INFO] [stderr]    |
[INFO] [stderr] 37 |     let result: Result<String, String> = if let Some(matches) = matches.subcommand_matches("build")
[INFO] [stderr]    |                                                      ^^^^^^^ help: consider prefixing with an underscore: `_matches`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `matches`
[INFO] [stderr]   --> src/main.rs:40:24
[INFO] [stderr]    |
[INFO] [stderr] 40 |     } else if let Some(matches) = matches.subcommand_matches("db") {
[INFO] [stderr]    |                        ^^^^^^^ help: consider prefixing with an underscore: `_matches`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `matches`
[INFO] [stderr]   --> src/main.rs:44:24
[INFO] [stderr]    |
[INFO] [stderr] 44 |     } else if let Some(matches) = matches.subcommand_matches("run") {
[INFO] [stderr]    |                        ^^^^^^^ help: consider prefixing with an underscore: `_matches`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/generator/mod.rs:125:9
[INFO] [stderr]     |
[INFO] [stderr] 125 |         tera.add_raw_template(var_template_name, var_template_value);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `matches`
[INFO] [stderr]   --> src/main.rs:37:54
[INFO] [stderr]    |
[INFO] [stderr] 37 |     let result: Result<String, String> = if let Some(matches) = matches.subcommand_matches("build")
[INFO] [stderr]    |                                                      ^^^^^^^ help: consider prefixing with an underscore: `_matches`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `matches`
[INFO] [stderr]   --> src/main.rs:40:24
[INFO] [stderr]    |
[INFO] [stderr] 40 |     } else if let Some(matches) = matches.subcommand_matches("db") {
[INFO] [stderr]    |                        ^^^^^^^ help: consider prefixing with an underscore: `_matches`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `matches`
[INFO] [stderr]   --> src/main.rs:44:24
[INFO] [stderr]    |
[INFO] [stderr] 44 |     } else if let Some(matches) = matches.subcommand_matches("run") {
[INFO] [stderr]    |                        ^^^^^^^ help: consider prefixing with an underscore: `_matches`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/generator/mod.rs:125:9
[INFO] [stderr]     |
[INFO] [stderr] 125 |         tera.add_raw_template(var_template_name, var_template_value);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 37.19s
[INFO] running `"docker" "inspect" "1da3fe88dedd2539e66e87c429e591a91691b339f019651152819294ac1d552e"`
[INFO] running `"docker" "rm" "-f" "1da3fe88dedd2539e66e87c429e591a91691b339f019651152819294ac1d552e"`
[INFO] [stdout] 1da3fe88dedd2539e66e87c429e591a91691b339f019651152819294ac1d552e