[INFO] updating cached repository svechinsky/slope
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/svechinsky/slope
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/svechinsky/slope" "work/ex/pr-62181/sources/master#6ea4036cd20a4b1ab1d56e555108c21735ff6946/gh/svechinsky/slope"`
[INFO] [stderr] Cloning into 'work/ex/pr-62181/sources/master#6ea4036cd20a4b1ab1d56e555108c21735ff6946/gh/svechinsky/slope'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/svechinsky/slope" "work/ex/pr-62181/sources/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/gh/svechinsky/slope"`
[INFO] [stderr] Cloning into 'work/ex/pr-62181/sources/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/gh/svechinsky/slope'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 449bc356ee0edefe594416b8b08494fe50f37158
[INFO] sha for GitHub repo svechinsky/slope: 449bc356ee0edefe594416b8b08494fe50f37158
[INFO] validating manifest of svechinsky/slope on toolchain master#6ea4036cd20a4b1ab1d56e555108c21735ff6946
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+6ea4036cd20a4b1ab1d56e555108c21735ff6946-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of svechinsky/slope on toolchain try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+003a7b6b5753e8509fdfe7949d4f0873ba71e4fc-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing svechinsky/slope
[INFO] finished frobbing svechinsky/slope
[INFO] frobbed toml for svechinsky/slope written to work/ex/pr-62181/sources/master#6ea4036cd20a4b1ab1d56e555108c21735ff6946/gh/svechinsky/slope/Cargo.toml
[INFO] started frobbing svechinsky/slope
[INFO] finished frobbing svechinsky/slope
[INFO] frobbed toml for svechinsky/slope written to work/ex/pr-62181/sources/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/gh/svechinsky/slope/Cargo.toml
[INFO] crate svechinsky/slope already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+6ea4036cd20a4b1ab1d56e555108c21735ff6946-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+003a7b6b5753e8509fdfe7949d4f0873ba71e4fc-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking svechinsky/slope against master#6ea4036cd20a4b1ab1d56e555108c21735ff6946 for pr-62181
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62181/worker-7/master#6ea4036cd20a4b1ab1d56e555108c21735ff6946:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62181/sources/master#6ea4036cd20a4b1ab1d56e555108c21735ff6946/gh/svechinsky/slope:/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" "+6ea4036cd20a4b1ab1d56e555108c21735ff6946-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 3f3bc13ae83f87476297dc2cff303711bd375c5120aa2ea079ea4030c23fdc12
[INFO] running `"docker" "start" "-a" "3f3bc13ae83f87476297dc2cff303711bd375c5120aa2ea079ea4030c23fdc12"`
[INFO] [stderr]     Checking clap v2.31.2
[INFO] [stderr]     Checking slope v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `transaction::simple_transaction::SimpleTransaction`
[INFO] [stderr]  --> src/conflict_set/mod.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use transaction::simple_transaction::SimpleTransaction;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `transaction::simple_transaction::SimpleTransaction`
[INFO] [stderr]  --> src/conflict_set/mod.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use transaction::simple_transaction::SimpleTransaction;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `public`
[INFO] [stderr]   --> src/state/simple_state.rs:31:13
[INFO] [stderr]    |
[INFO] [stderr] 31 |         let public = key_pair.public_key_bytes();
[INFO] [stderr]    |             ^^^^^^ help: consider prefixing with an underscore: `_public`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `sig`
[INFO] [stderr]   --> src/state/simple_state.rs:33:13
[INFO] [stderr]    |
[INFO] [stderr] 33 |         let sig = key_pair.sign(MESSAGE);
[INFO] [stderr]    |             ^^^ help: consider prefixing with an underscore: `_sig`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `transaction`
[INFO] [stderr]   --> src/state/simple_state.rs:38:24
[INFO] [stderr]    |
[INFO] [stderr] 38 |     fn validate(&self, transaction: &SimpleTransaction) -> bool{
[INFO] [stderr]    |                        ^^^^^^^^^^^ help: consider prefixing with an underscore: `_transaction`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `public`
[INFO] [stderr]   --> src/state/simple_state.rs:31:13
[INFO] [stderr]    |
[INFO] [stderr] 31 |         let public = key_pair.public_key_bytes();
[INFO] [stderr]    |             ^^^^^^ help: consider prefixing with an underscore: `_public`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `sig`
[INFO] [stderr]   --> src/state/simple_state.rs:33:13
[INFO] [stderr]    |
[INFO] [stderr] 33 |         let sig = key_pair.sign(MESSAGE);
[INFO] [stderr]    |             ^^^ help: consider prefixing with an underscore: `_sig`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `transaction`
[INFO] [stderr]   --> src/state/simple_state.rs:38:24
[INFO] [stderr]    |
[INFO] [stderr] 38 |     fn validate(&self, transaction: &SimpleTransaction) -> bool{
[INFO] [stderr]    |                        ^^^^^^^^^^^ help: consider prefixing with an underscore: `_transaction`
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `SimpleConflictSet`
[INFO] [stderr]  --> src/conflict_set/simple_conflict_set.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub struct SimpleConflictSet {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `SimpleState`
[INFO] [stderr]   --> src/state/simple_state.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub struct SimpleState{
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/state/simple_state.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     pub fn new() -> SimpleState {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `SimpleConflictSet`
[INFO] [stderr]  --> src/conflict_set/simple_conflict_set.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub struct SimpleConflictSet {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `SimpleState`
[INFO] [stderr]   --> src/state/simple_state.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub struct SimpleState{
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/state/simple_state.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     pub fn new() -> SimpleState {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.66s
[INFO] running `"docker" "inspect" "3f3bc13ae83f87476297dc2cff303711bd375c5120aa2ea079ea4030c23fdc12"`
[INFO] running `"docker" "rm" "-f" "3f3bc13ae83f87476297dc2cff303711bd375c5120aa2ea079ea4030c23fdc12"`
[INFO] [stdout] 3f3bc13ae83f87476297dc2cff303711bd375c5120aa2ea079ea4030c23fdc12