[INFO] updating cached repository mmarkell/rust_sat
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/mmarkell/rust_sat
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/mmarkell/rust_sat" "work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/mmarkell/rust_sat"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/mmarkell/rust_sat'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/mmarkell/rust_sat" "work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/mmarkell/rust_sat"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/mmarkell/rust_sat'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 150d0e00a58c2b9c89356bcb28fa31db120b3867
[INFO] sha for GitHub repo mmarkell/rust_sat: 150d0e00a58c2b9c89356bcb28fa31db120b3867
[INFO] validating manifest of mmarkell/rust_sat 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 mmarkell/rust_sat 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 mmarkell/rust_sat
[INFO] finished frobbing mmarkell/rust_sat
[INFO] frobbed toml for mmarkell/rust_sat written to work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/mmarkell/rust_sat/Cargo.toml
[INFO] started frobbing mmarkell/rust_sat
[INFO] finished frobbing mmarkell/rust_sat
[INFO] frobbed toml for mmarkell/rust_sat written to work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/mmarkell/rust_sat/Cargo.toml
[INFO] crate mmarkell/rust_sat 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 mmarkell/rust_sat against master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54 for pr-57967
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-7/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/mmarkell/rust_sat:/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" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "build" "--frozen"`
[INFO] [stdout] 9dd5c15cdd086e9f693ff2e5182fae03907b87202392135e3c478abb1962e309
[INFO] running `"docker" "start" "-a" "9dd5c15cdd086e9f693ff2e5182fae03907b87202392135e3c478abb1962e309"`
[INFO] [stderr]    Compiling sat_solver v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unnecessary parentheses around method argument
[INFO] [stderr]   --> src/solver.rs:47:29
[INFO] [stderr]    |
[INFO] [stderr] 47 |             new_vars.remove((idx as usize));
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `width`
[INFO] [stderr]   --> src/encoder.rs:53:45
[INFO] [stderr]    |
[INFO] [stderr] 53 | pub fn format_output((positives, negatives, width, height): (Vec<i32>, Vec<i32>, i32, i32)) {
[INFO] [stderr]    |                                             ^^^^^ help: consider prefixing with an underscore: `_width`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `height`
[INFO] [stderr]   --> src/encoder.rs:53:52
[INFO] [stderr]    |
[INFO] [stderr] 53 | pub fn format_output((positives, negatives, width, height): (Vec<i32>, Vec<i32>, i32, i32)) {
[INFO] [stderr]    |                                                    ^^^^^^ help: consider prefixing with an underscore: `_height`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `last_seen`
[INFO] [stderr]   --> src/solver.rs:73:33
[INFO] [stderr]    |
[INFO] [stderr] 73 |             Some(&(occurrences, last_seen)) => {
[INFO] [stderr]    |                                 ^^^^^^^^^ help: consider prefixing with an underscore: `_last_seen`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.39s
[INFO] running `"docker" "inspect" "9dd5c15cdd086e9f693ff2e5182fae03907b87202392135e3c478abb1962e309"`
[INFO] running `"docker" "rm" "-f" "9dd5c15cdd086e9f693ff2e5182fae03907b87202392135e3c478abb1962e309"`
[INFO] [stdout] 9dd5c15cdd086e9f693ff2e5182fae03907b87202392135e3c478abb1962e309
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-7/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/mmarkell/rust_sat:/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" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] 024b6f0b66d7ab14a9639eaf2d491eae8e8bfc0cc70e23a7f1dcd742b4eb633d
[INFO] running `"docker" "start" "-a" "024b6f0b66d7ab14a9639eaf2d491eae8e8bfc0cc70e23a7f1dcd742b4eb633d"`
[INFO] [stderr]    Compiling sat_solver v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unnecessary parentheses around method argument
[INFO] [stderr]   --> src/solver.rs:47:29
[INFO] [stderr]    |
[INFO] [stderr] 47 |             new_vars.remove((idx as usize));
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `width`
[INFO] [stderr]   --> src/encoder.rs:53:45
[INFO] [stderr]    |
[INFO] [stderr] 53 | pub fn format_output((positives, negatives, width, height): (Vec<i32>, Vec<i32>, i32, i32)) {
[INFO] [stderr]    |                                             ^^^^^ help: consider prefixing with an underscore: `_width`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `height`
[INFO] [stderr]   --> src/encoder.rs:53:52
[INFO] [stderr]    |
[INFO] [stderr] 53 | pub fn format_output((positives, negatives, width, height): (Vec<i32>, Vec<i32>, i32, i32)) {
[INFO] [stderr]    |                                                    ^^^^^^ help: consider prefixing with an underscore: `_height`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `last_seen`
[INFO] [stderr]   --> src/solver.rs:73:33
[INFO] [stderr]    |
[INFO] [stderr] 73 |             Some(&(occurrences, last_seen)) => {
[INFO] [stderr]    |                                 ^^^^^^^^^ help: consider prefixing with an underscore: `_last_seen`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.53s
[INFO] running `"docker" "inspect" "024b6f0b66d7ab14a9639eaf2d491eae8e8bfc0cc70e23a7f1dcd742b4eb633d"`
[INFO] running `"docker" "rm" "-f" "024b6f0b66d7ab14a9639eaf2d491eae8e8bfc0cc70e23a7f1dcd742b4eb633d"`
[INFO] [stdout] 024b6f0b66d7ab14a9639eaf2d491eae8e8bfc0cc70e23a7f1dcd742b4eb633d
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-7/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/mmarkell/rust_sat:/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" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "test" "--frozen"`
[INFO] [stdout] 10558086d2619bec8fa7d5fa4edc18bb4f6f58ee31db2a421673371687141e3e
[INFO] running `"docker" "start" "-a" "10558086d2619bec8fa7d5fa4edc18bb4f6f58ee31db2a421673371687141e3e"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/sat_solver-fb9c5ac992f9ee14
[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" "10558086d2619bec8fa7d5fa4edc18bb4f6f58ee31db2a421673371687141e3e"`
[INFO] running `"docker" "rm" "-f" "10558086d2619bec8fa7d5fa4edc18bb4f6f58ee31db2a421673371687141e3e"`
[INFO] [stdout] 10558086d2619bec8fa7d5fa4edc18bb4f6f58ee31db2a421673371687141e3e