[INFO] cloning repository karuna/hangar
[INFO] running `"git" "clone" "--bare" "git://github.com/karuna/hangar.git" "work/cache/sources/gh/karuna/hangar"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/karuna/hangar'...
[INFO] running `"git" "clone" "work/cache/sources/gh/karuna/hangar" "work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/karuna/hangar"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/karuna/hangar'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/karuna/hangar" "work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/karuna/hangar"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/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#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of karuna/hangar on toolchain try#8f81d0bf6baf07b92f1246696722485c4ca0b049
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-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-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/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-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/karuna/hangar/Cargo.toml
[INFO] crate karuna/hangar already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cargo-shim v0.1.5
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] checking karuna/hangar against try#8f81d0bf6baf07b92f1246696722485c4ca0b049 for pr-62008
[INFO] running `"docker" "create" "-v" "/mnt/big/ec2-user/crater/work/local/target-dirs/pr-62008/worker-1/try#8f81d0bf6baf07b92f1246696722485c4ca0b049:/opt/crater/target:rw,Z" "-v" "/mnt/big/ec2-user/crater/work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/karuna/hangar:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/ec2-user/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/ec2-user/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" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 214be216f227a8bde0601d2cdd0e326d3a78b2559f59a3329b564ab9351c070a
[INFO] running `"docker" "start" "-a" "214be216f227a8bde0601d2cdd0e326d3a78b2559f59a3329b564ab9351c070a"`
[INFO] [stderr]     Checking serde_json v0.9.10
[INFO] [stderr]     Checking clap v2.31.1
[INFO] [stderr]     Checking tera v0.11.5
[INFO] [stderr]     Checking cargo_metadata v0.1.2
[INFO] [stderr]     Checking cargo-shim v0.1.5
[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 13.69s
[INFO] running `"docker" "inspect" "214be216f227a8bde0601d2cdd0e326d3a78b2559f59a3329b564ab9351c070a"`
[INFO] running `"docker" "rm" "-f" "214be216f227a8bde0601d2cdd0e326d3a78b2559f59a3329b564ab9351c070a"`
[INFO] [stdout] 214be216f227a8bde0601d2cdd0e326d3a78b2559f59a3329b564ab9351c070a