[INFO] updating cached repository miyamofigo/simple_database
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/miyamofigo/simple_database
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/miyamofigo/simple_database" "work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/miyamofigo/simple_database"`
[INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/miyamofigo/simple_database'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/miyamofigo/simple_database" "work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/miyamofigo/simple_database"`
[INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/miyamofigo/simple_database'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c7044256f94cecfd839c7a1f3e292877fd650b5a
[INFO] sha for GitHub repo miyamofigo/simple_database: c7044256f94cecfd839c7a1f3e292877fd650b5a
[INFO] validating manifest of miyamofigo/simple_database 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 miyamofigo/simple_database 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 miyamofigo/simple_database
[INFO] finished frobbing miyamofigo/simple_database
[INFO] frobbed toml for miyamofigo/simple_database written to work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/miyamofigo/simple_database/Cargo.toml
[INFO] started frobbing miyamofigo/simple_database
[INFO] finished frobbing miyamofigo/simple_database
[INFO] frobbed toml for miyamofigo/simple_database written to work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/miyamofigo/simple_database/Cargo.toml
[INFO] crate miyamofigo/simple_database 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] [stderr] error: the lock file /mnt/big/crater/work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/miyamofigo/simple_database/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 miyamofigo/simple_database 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/miyamofigo/simple_database:/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] 4d4e6103b808cfd652bee8579cec4e8bf6c522f3a7ad05615782cf228ffe3910
[INFO] running `"docker" "start" "-a" "4d4e6103b808cfd652bee8579cec4e8bf6c522f3a7ad05615782cf228ffe3910"`
[INFO] [stderr]     Checking simple_database v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::fmt::Display`
[INFO] [stderr]   --> src/main.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use std::fmt::Display;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fmt::Display`
[INFO] [stderr]   --> src/main.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use std::fmt::Display;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `add`
[INFO] [stderr]    --> src/main.rs:188:6
[INFO] [stderr]     |
[INFO] [stderr] 188 |     let add = "add".to_string();
[INFO] [stderr]     |         ^^^ help: consider prefixing with an underscore: `_add`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `latest`
[INFO] [stderr]    --> src/main.rs:189:6
[INFO] [stderr]     |
[INFO] [stderr] 189 |     let latest = "latest".to_string();
[INFO] [stderr]     |         ^^^^^^ help: consider prefixing with an underscore: `_latest`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `all`
[INFO] [stderr]    --> src/main.rs:190:6
[INFO] [stderr]     |
[INFO] [stderr] 190 |     let all = "all".to_string();
[INFO] [stderr]     |         ^^^ help: consider prefixing with an underscore: `_all`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/main.rs:21:2
[INFO] [stderr]    |
[INFO] [stderr] 21 |       fn new(name: &str,
[INFO] [stderr]    |  _____^
[INFO] [stderr] 22 | |     date: &str,
[INFO] [stderr] 23 | |     category: &str) -> Item {
[INFO] [stderr] 24 | |
[INFO] [stderr] ...  |
[INFO] [stderr] 28 | |             category: category.to_string() }
[INFO] [stderr] 29 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `add`
[INFO] [stderr]    --> src/main.rs:188:6
[INFO] [stderr]     |
[INFO] [stderr] 188 |     let add = "add".to_string();
[INFO] [stderr]     |         ^^^ help: consider prefixing with an underscore: `_add`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `latest`
[INFO] [stderr]    --> src/main.rs:189:6
[INFO] [stderr]     |
[INFO] [stderr] 189 |     let latest = "latest".to_string();
[INFO] [stderr]     |         ^^^^^^ help: consider prefixing with an underscore: `_latest`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `all`
[INFO] [stderr]    --> src/main.rs:190:6
[INFO] [stderr]     |
[INFO] [stderr] 190 |     let all = "all".to_string();
[INFO] [stderr]     |         ^^^ help: consider prefixing with an underscore: `_all`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:127:3
[INFO] [stderr]     |
[INFO] [stderr] 127 |         file.write(item.to_string().as_bytes());
[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: method is never used: `new`
[INFO] [stderr]   --> src/main.rs:21:2
[INFO] [stderr]    |
[INFO] [stderr] 21 |       fn new(name: &str,
[INFO] [stderr]    |  _____^
[INFO] [stderr] 22 | |     date: &str,
[INFO] [stderr] 23 | |     category: &str) -> Item {
[INFO] [stderr] 24 | |
[INFO] [stderr] ...  |
[INFO] [stderr] 28 | |             category: category.to_string() }
[INFO] [stderr] 29 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:127:3
[INFO] [stderr]     |
[INFO] [stderr] 127 |         file.write(item.to_string().as_bytes());
[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 0.30s
[INFO] running `"docker" "inspect" "4d4e6103b808cfd652bee8579cec4e8bf6c522f3a7ad05615782cf228ffe3910"`
[INFO] running `"docker" "rm" "-f" "4d4e6103b808cfd652bee8579cec4e8bf6c522f3a7ad05615782cf228ffe3910"`
[INFO] [stdout] 4d4e6103b808cfd652bee8579cec4e8bf6c522f3a7ad05615782cf228ffe3910