[INFO] updating cached repository nicohman/carbon
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/nicohman/carbon
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/nicohman/carbon" "work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/nicohman/carbon"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/nicohman/carbon'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/nicohman/carbon" "work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/nicohman/carbon"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/nicohman/carbon'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] fc78e9cd355415edbfbea87aada6dcee6cdec8d1
[INFO] sha for GitHub repo nicohman/carbon: fc78e9cd355415edbfbea87aada6dcee6cdec8d1
[INFO] validating manifest of nicohman/carbon on toolchain master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of nicohman/carbon on toolchain try#7fea0229842e79db1159ea58ad9a653b288efee9
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing nicohman/carbon
[INFO] finished frobbing nicohman/carbon
[INFO] frobbed toml for nicohman/carbon written to work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/nicohman/carbon/Cargo.toml
[INFO] started frobbing nicohman/carbon
[INFO] finished frobbing nicohman/carbon
[INFO] frobbed toml for nicohman/carbon written to work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/nicohman/carbon/Cargo.toml
[INFO] crate nicohman/carbon has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing nicohman/carbon against try#7fea0229842e79db1159ea58ad9a653b288efee9 for pr-57967
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-3/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/nicohman/carbon:/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" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "build" "--frozen"`
[INFO] [stdout] 6b38982d01e12388bd2c3a8d392ea5f16410a0038bb6c5ba3abcdb836ecb5b66
[INFO] running `"docker" "start" "-a" "6b38982d01e12388bd2c3a8d392ea5f16410a0038bb6c5ba3abcdb836ecb5b66"`
[INFO] [stderr]    Compiling carbon v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::str::FromStr`
[INFO] [stderr]  --> src/bin/carbon.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::str::FromStr;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::env::home_dir': This function's behavior is unexpected and probably not what you want. Consider using the home_dir function from https://crates.io/crates/dirs instead.
[INFO] [stderr]    --> src/bin/carbon.rs:179:25
[INFO] [stderr]     |
[INFO] [stderr] 179 |     return String::from(env::home_dir().unwrap().to_str().unwrap());
[INFO] [stderr]     |                         ^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `disp`
[INFO] [stderr]   --> src/bin/carbon.rs:81:23
[INFO] [stderr]    |
[INFO] [stderr] 81 | fn gen_npc(sys: &str, disp: bool) {
[INFO] [stderr]    |                       ^^^^ help: consider prefixing with an underscore: `_disp`
[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/bin/carbon.rs:91:9
[INFO] [stderr]    |
[INFO] [stderr] 91 |     let mut vec: Vec<String>;
[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: struct is never constructed: `Npc`
[INFO] [stderr]   --> src/bin/carbon.rs:10:1
[INFO] [stderr]    |
[INFO] [stderr] 10 | struct Npc {
[INFO] [stderr]    | ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `to_string`
[INFO] [stderr]   --> src/bin/carbon.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     fn to_string(&self) -> String {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `add_npc`
[INFO] [stderr]   --> src/bin/carbon.rs:76:1
[INFO] [stderr]    |
[INFO] [stderr] 76 | fn add_npc(npc:Npc, camp:&str){
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `proc_path`
[INFO] [stderr]    --> src/bin/carbon.rs:181:1
[INFO] [stderr]     |
[INFO] [stderr] 181 | fn proc_path(path: DirEntry) -> String {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.32s
[INFO] running `"docker" "inspect" "6b38982d01e12388bd2c3a8d392ea5f16410a0038bb6c5ba3abcdb836ecb5b66"`
[INFO] running `"docker" "rm" "-f" "6b38982d01e12388bd2c3a8d392ea5f16410a0038bb6c5ba3abcdb836ecb5b66"`
[INFO] [stdout] 6b38982d01e12388bd2c3a8d392ea5f16410a0038bb6c5ba3abcdb836ecb5b66
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-3/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/nicohman/carbon:/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" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] 218f1c64171c54b02c39cd62404b27d766e85fab0a8e05579e77acb14c77e5be
[INFO] running `"docker" "start" "-a" "218f1c64171c54b02c39cd62404b27d766e85fab0a8e05579e77acb14c77e5be"`
[INFO] [stderr]    Compiling carbon v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::str::FromStr`
[INFO] [stderr]  --> src/bin/carbon.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::str::FromStr;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::env::home_dir': This function's behavior is unexpected and probably not what you want. Consider using the home_dir function from https://crates.io/crates/dirs instead.
[INFO] [stderr]    --> src/bin/carbon.rs:179:25
[INFO] [stderr]     |
[INFO] [stderr] 179 |     return String::from(env::home_dir().unwrap().to_str().unwrap());
[INFO] [stderr]     |                         ^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `disp`
[INFO] [stderr]   --> src/bin/carbon.rs:81:23
[INFO] [stderr]    |
[INFO] [stderr] 81 | fn gen_npc(sys: &str, disp: bool) {
[INFO] [stderr]    |                       ^^^^ help: consider prefixing with an underscore: `_disp`
[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/bin/carbon.rs:91:9
[INFO] [stderr]    |
[INFO] [stderr] 91 |     let mut vec: Vec<String>;
[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: struct is never constructed: `Npc`
[INFO] [stderr]   --> src/bin/carbon.rs:10:1
[INFO] [stderr]    |
[INFO] [stderr] 10 | struct Npc {
[INFO] [stderr]    | ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `to_string`
[INFO] [stderr]   --> src/bin/carbon.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     fn to_string(&self) -> String {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `add_npc`
[INFO] [stderr]   --> src/bin/carbon.rs:76:1
[INFO] [stderr]    |
[INFO] [stderr] 76 | fn add_npc(npc:Npc, camp:&str){
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `proc_path`
[INFO] [stderr]    --> src/bin/carbon.rs:181:1
[INFO] [stderr]     |
[INFO] [stderr] 181 | fn proc_path(path: DirEntry) -> String {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.81s
[INFO] running `"docker" "inspect" "218f1c64171c54b02c39cd62404b27d766e85fab0a8e05579e77acb14c77e5be"`
[INFO] running `"docker" "rm" "-f" "218f1c64171c54b02c39cd62404b27d766e85fab0a8e05579e77acb14c77e5be"`
[INFO] [stdout] 218f1c64171c54b02c39cd62404b27d766e85fab0a8e05579e77acb14c77e5be
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-3/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/nicohman/carbon:/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" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "test" "--frozen"`
[INFO] [stdout] 5632d69fc9a394d0848b5e8b7e3acc429e8d0cb961516914c16e27db987fad2c
[INFO] running `"docker" "start" "-a" "5632d69fc9a394d0848b5e8b7e3acc429e8d0cb961516914c16e27db987fad2c"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/carbon-065e6d77f0437320
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "5632d69fc9a394d0848b5e8b7e3acc429e8d0cb961516914c16e27db987fad2c"`
[INFO] running `"docker" "rm" "-f" "5632d69fc9a394d0848b5e8b7e3acc429e8d0cb961516914c16e27db987fad2c"`
[INFO] [stdout] 5632d69fc9a394d0848b5e8b7e3acc429e8d0cb961516914c16e27db987fad2c