[INFO] updating cached repository danielbusaba/affinity
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/danielbusaba/affinity
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/danielbusaba/affinity" "work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/danielbusaba/affinity"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/danielbusaba/affinity'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/danielbusaba/affinity" "work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/danielbusaba/affinity"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/danielbusaba/affinity'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] bf15927e1c785623be4ea26ac7acf62c96c8ca70
[INFO] sha for GitHub repo danielbusaba/affinity: bf15927e1c785623be4ea26ac7acf62c96c8ca70
[INFO] validating manifest of danielbusaba/affinity 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 danielbusaba/affinity 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 danielbusaba/affinity
[INFO] finished frobbing danielbusaba/affinity
[INFO] frobbed toml for danielbusaba/affinity written to work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/danielbusaba/affinity/Cargo.toml
[INFO] started frobbing danielbusaba/affinity
[INFO] finished frobbing danielbusaba/affinity
[INFO] frobbed toml for danielbusaba/affinity written to work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/danielbusaba/affinity/Cargo.toml
[INFO] crate danielbusaba/affinity 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 danielbusaba/affinity against try#7fea0229842e79db1159ea58ad9a653b288efee9 for pr-57967
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-5/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/danielbusaba/affinity:/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] 298dccc4363ce333fa7467170d2c03865ab1e472f26427113822f590b48f54eb
[INFO] running `"docker" "start" "-a" "298dccc4363ce333fa7467170d2c03865ab1e472f26427113822f590b48f54eb"`
[INFO] [stderr]    Compiling affinity v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]    --> src/main.rs:156:8
[INFO] [stderr]     |
[INFO] [stderr] 156 |     if (aws.len() > 0)
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `num` is never read
[INFO] [stderr]   --> src/main.rs:47:17
[INFO] [stderr]    |
[INFO] [stderr] 47 |         let mut num = 0;
[INFO] [stderr]    |                 ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_assignments)] on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `num` is never read
[INFO] [stderr]   --> src/main.rs:86:17
[INFO] [stderr]    |
[INFO] [stderr] 86 |         let mut num = 0;
[INFO] [stderr]    |                 ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `c` is never read
[INFO] [stderr]    --> src/main.rs:172:17
[INFO] [stderr]     |
[INFO] [stderr] 172 |         let mut c = ' ';
[INFO] [stderr]     |                 ^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `c` is never read
[INFO] [stderr]    --> src/main.rs:211:17
[INFO] [stderr]     |
[INFO] [stderr] 211 |         let mut c = ' ';
[INFO] [stderr]     |                 ^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `unique_characters` is never read
[INFO] [stderr]    --> src/main.rs:344:13
[INFO] [stderr]     |
[INFO] [stderr] 344 |     let mut unique_characters: HashSet<char> = HashSet::new();
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `unique_characters` is never read
[INFO] [stderr]    --> src/main.rs:356:17
[INFO] [stderr]     |
[INFO] [stderr] 356 |                 unique_characters = HashSet::new();
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `affinity` is never read
[INFO] [stderr]    --> src/main.rs:384:13
[INFO] [stderr]     |
[INFO] [stderr] 384 |     let mut affinity = String::new();
[INFO] [stderr]     |             ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.38s
[INFO] running `"docker" "inspect" "298dccc4363ce333fa7467170d2c03865ab1e472f26427113822f590b48f54eb"`
[INFO] running `"docker" "rm" "-f" "298dccc4363ce333fa7467170d2c03865ab1e472f26427113822f590b48f54eb"`
[INFO] [stdout] 298dccc4363ce333fa7467170d2c03865ab1e472f26427113822f590b48f54eb
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-5/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/danielbusaba/affinity:/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] 32147cc0d596fb7c8e299ebb648eacb942370f7c00fff67375457957e80d89d7
[INFO] running `"docker" "start" "-a" "32147cc0d596fb7c8e299ebb648eacb942370f7c00fff67375457957e80d89d7"`
[INFO] [stderr]    Compiling affinity v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]    --> src/main.rs:156:8
[INFO] [stderr]     |
[INFO] [stderr] 156 |     if (aws.len() > 0)
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `num` is never read
[INFO] [stderr]   --> src/main.rs:47:17
[INFO] [stderr]    |
[INFO] [stderr] 47 |         let mut num = 0;
[INFO] [stderr]    |                 ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_assignments)] on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `num` is never read
[INFO] [stderr]   --> src/main.rs:86:17
[INFO] [stderr]    |
[INFO] [stderr] 86 |         let mut num = 0;
[INFO] [stderr]    |                 ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `c` is never read
[INFO] [stderr]    --> src/main.rs:172:17
[INFO] [stderr]     |
[INFO] [stderr] 172 |         let mut c = ' ';
[INFO] [stderr]     |                 ^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `c` is never read
[INFO] [stderr]    --> src/main.rs:211:17
[INFO] [stderr]     |
[INFO] [stderr] 211 |         let mut c = ' ';
[INFO] [stderr]     |                 ^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `unique_characters` is never read
[INFO] [stderr]    --> src/main.rs:344:13
[INFO] [stderr]     |
[INFO] [stderr] 344 |     let mut unique_characters: HashSet<char> = HashSet::new();
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `unique_characters` is never read
[INFO] [stderr]    --> src/main.rs:356:17
[INFO] [stderr]     |
[INFO] [stderr] 356 |                 unique_characters = HashSet::new();
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `affinity` is never read
[INFO] [stderr]    --> src/main.rs:384:13
[INFO] [stderr]     |
[INFO] [stderr] 384 |     let mut affinity = String::new();
[INFO] [stderr]     |             ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.53s
[INFO] running `"docker" "inspect" "32147cc0d596fb7c8e299ebb648eacb942370f7c00fff67375457957e80d89d7"`
[INFO] running `"docker" "rm" "-f" "32147cc0d596fb7c8e299ebb648eacb942370f7c00fff67375457957e80d89d7"`
[INFO] [stdout] 32147cc0d596fb7c8e299ebb648eacb942370f7c00fff67375457957e80d89d7
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-5/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/danielbusaba/affinity:/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] bcd727a311a61ea18098d3813a535339364923d4fe83fb545eff310a8d4346b3
[INFO] running `"docker" "start" "-a" "bcd727a311a61ea18098d3813a535339364923d4fe83fb545eff310a8d4346b3"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/affinity-acfd5206b0b6b5c1
[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" "bcd727a311a61ea18098d3813a535339364923d4fe83fb545eff310a8d4346b3"`
[INFO] running `"docker" "rm" "-f" "bcd727a311a61ea18098d3813a535339364923d4fe83fb545eff310a8d4346b3"`
[INFO] [stdout] bcd727a311a61ea18098d3813a535339364923d4fe83fb545eff310a8d4346b3