[INFO] updating cached repository Klapeyron/Markov
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Klapeyron/Markov
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Klapeyron/Markov" "work/ex/beta-1.38-1/sources/1.37.0/gh/Klapeyron/Markov"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/Klapeyron/Markov'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Klapeyron/Markov" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Klapeyron/Markov"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Klapeyron/Markov'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 62d4cd1839e0f7fc96beeaa6dc2a1efb829e1b94
[INFO] sha for GitHub repo Klapeyron/Markov: 62d4cd1839e0f7fc96beeaa6dc2a1efb829e1b94
[INFO] validating manifest of Klapeyron/Markov on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of Klapeyron/Markov on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing Klapeyron/Markov
[INFO] finished frobbing Klapeyron/Markov
[INFO] frobbed toml for Klapeyron/Markov written to work/ex/beta-1.38-1/sources/1.37.0/gh/Klapeyron/Markov/Cargo.toml
[INFO] started frobbing Klapeyron/Markov
[INFO] finished frobbing Klapeyron/Markov
[INFO] frobbed toml for Klapeyron/Markov written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Klapeyron/Markov/Cargo.toml
[INFO] crate Klapeyron/Markov already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/Klapeyron/Markov/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[INFO] the lockfile is outdated, regenerating it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" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing Klapeyron/Markov against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/Klapeyron/Markov:/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=warn" "-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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 5c3d4b53f07a8d10730ea97369587142b0b6a9ca7a65b8d34a81fb4319be3b65
[INFO] running `"docker" "start" "-a" "5c3d4b53f07a8d10730ea97369587142b0b6a9ca7a65b8d34a81fb4319be3b65"`
[INFO] [stderr]    Compiling markov v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]   --> src/markov.rs:87:23
[INFO] [stderr]    |
[INFO] [stderr] 87 |             &Some(ref value) => write!(f, "{:?}, {:?}", self.state, self.action.clone().unwrap()),
[INFO] [stderr]    |                       ^^^^^ help: consider prefixing with an underscore: `_value`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]    --> src/markov.rs:105:5
[INFO] [stderr]     |
[INFO] [stderr] 105 |     pub fn new() -> MarkovBuilder {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `set_size`
[INFO] [stderr]    --> src/markov.rs:132:5
[INFO] [stderr]     |
[INFO] [stderr] 132 |     fn set_size(&mut self, x: usize, y: usize) -> &mut MarkovBuilder {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `set_state`
[INFO] [stderr]    --> src/markov.rs:137:5
[INFO] [stderr]     |
[INFO] [stderr] 137 |     fn set_state(&mut self, state: State, x: usize, y: usize) -> &mut MarkovBuilder {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]    --> src/markov.rs:171:5
[INFO] [stderr]     |
[INFO] [stderr] 171 |     fn new() -> Markov {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/matrix.rs:51:9
[INFO] [stderr]    |
[INFO] [stderr] 51 |         write!(f, "[");
[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]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/matrix.rs:53:13
[INFO] [stderr]    |
[INFO] [stderr] 53 |             write!(f, "\n");
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/matrix.rs:55:17
[INFO] [stderr]    |
[INFO] [stderr] 55 |                 write!(f, "[{:?}], ", elem);
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.61s
[INFO] running `"docker" "inspect" "5c3d4b53f07a8d10730ea97369587142b0b6a9ca7a65b8d34a81fb4319be3b65"`
[INFO] running `"docker" "rm" "-f" "5c3d4b53f07a8d10730ea97369587142b0b6a9ca7a65b8d34a81fb4319be3b65"`
[INFO] [stdout] 5c3d4b53f07a8d10730ea97369587142b0b6a9ca7a65b8d34a81fb4319be3b65
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/Klapeyron/Markov:/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=warn" "-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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 1d87bbcc1c3eb6b57c668fb9ae08c7a456c341a58fcb3d64c3c0ec45fc35b1e8
[INFO] running `"docker" "start" "-a" "1d87bbcc1c3eb6b57c668fb9ae08c7a456c341a58fcb3d64c3c0ec45fc35b1e8"`
[INFO] [stderr]    Compiling markov v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]   --> src/markov.rs:87:23
[INFO] [stderr]    |
[INFO] [stderr] 87 |             &Some(ref value) => write!(f, "{:?}, {:?}", self.state, self.action.clone().unwrap()),
[INFO] [stderr]    |                       ^^^^^ help: consider prefixing with an underscore: `_value`
[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/markov.rs:333:9
[INFO] [stderr]     |
[INFO] [stderr] 333 |     let mut markov: Markov = MarkovBuilder::new()
[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: variable does not need to be mutable
[INFO] [stderr]    --> src/markov.rs:348:9
[INFO] [stderr]     |
[INFO] [stderr] 348 |     let mut markov: Markov = MarkovBuilder::new()
[INFO] [stderr]     |         ----^^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/markov.rs:380:9
[INFO] [stderr]     |
[INFO] [stderr] 380 |     let mut markov: Markov = MarkovBuilder::new()
[INFO] [stderr]     |         ----^^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/markov.rs:428:9
[INFO] [stderr]     |
[INFO] [stderr] 428 |     let mut markov: Markov = MarkovBuilder::new()
[INFO] [stderr]     |         ----^^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `set_size`
[INFO] [stderr]    --> src/markov.rs:132:5
[INFO] [stderr]     |
[INFO] [stderr] 132 |     fn set_size(&mut self, x: usize, y: usize) -> &mut MarkovBuilder {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]    --> src/markov.rs:171:5
[INFO] [stderr]     |
[INFO] [stderr] 171 |     fn new() -> Markov {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/matrix.rs:51:9
[INFO] [stderr]    |
[INFO] [stderr] 51 |         write!(f, "[");
[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]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/matrix.rs:53:13
[INFO] [stderr]    |
[INFO] [stderr] 53 |             write!(f, "\n");
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/matrix.rs:55:17
[INFO] [stderr]    |
[INFO] [stderr] 55 |                 write!(f, "[{:?}], ", elem);
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.25s
[INFO] running `"docker" "inspect" "1d87bbcc1c3eb6b57c668fb9ae08c7a456c341a58fcb3d64c3c0ec45fc35b1e8"`
[INFO] running `"docker" "rm" "-f" "1d87bbcc1c3eb6b57c668fb9ae08c7a456c341a58fcb3d64c3c0ec45fc35b1e8"`
[INFO] [stdout] 1d87bbcc1c3eb6b57c668fb9ae08c7a456c341a58fcb3d64c3c0ec45fc35b1e8
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/Klapeyron/Markov:/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=warn" "-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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 403bd584520a805e1c02045019f7c3e07645312a5b9583d1a1a4eaf6eb8f93a8
[INFO] running `"docker" "start" "-a" "403bd584520a805e1c02045019f7c3e07645312a5b9583d1a1a4eaf6eb8f93a8"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/markov-8edb7de183f44be8
[INFO] [stdout] 
[INFO] [stdout] running 14 tests
[INFO] [stdout] test markov::calculate_evaluation_of_action ... ignored
[INFO] [stdout] test markov::not_allow_immutable_state_update ... ignored
[INFO] [stdout] test markov::not_allow_normal_state_update_from_different_type ... ignored
[INFO] [stdout] test markov::calculate_state_after_action ... ok
[INFO] [stdout] test markov::update_normal_state ... ignored
[INFO] [stdout] test markov::left_operation_calculations ... ok
[INFO] [stdout] test markov::prepare_standard_world ... ok
[INFO] [stdout] test markov::right_operation_calculations ... ok
[INFO] [stdout] test matrix::all_fields_are_initialized_corectly ... ok
[INFO] [stdout] test matrix::return_none_if_accessed_out_of_range ... ok
[INFO] [stdout] test matrix::correct_size ... ok
[INFO] [stdout] test matrix::return_false_if_inserted_out_of_range ... ok
[INFO] [stdout] test markov::calculate_standard_world ... ok
[INFO] [stdout] test markov::reverse_operation_calculations ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 4 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "403bd584520a805e1c02045019f7c3e07645312a5b9583d1a1a4eaf6eb8f93a8"`
[INFO] running `"docker" "rm" "-f" "403bd584520a805e1c02045019f7c3e07645312a5b9583d1a1a4eaf6eb8f93a8"`
[INFO] [stdout] 403bd584520a805e1c02045019f7c3e07645312a5b9583d1a1a4eaf6eb8f93a8