[INFO] updating cached repository https://github.com/foundoulis/market_sim
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5fc832f33e3031d30390ec9b8faadb2054787eef
[INFO] checking foundoulis/market_sim against master#bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc for pr-70917
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffoundoulis%2Fmarket_sim" "/workspace/builds/worker-13/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/foundoulis/market_sim on toolchain bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/foundoulis/market_sim
[INFO] finished tweaking git repo https://github.com/foundoulis/market_sim
[INFO] tweaked toml for git repo https://github.com/foundoulis/market_sim written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/foundoulis/market_sim already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f5c1fcd29ae6bb3c867379c2dd788341160587bbbb97e25f2d2aba07d556f054
[INFO] running `"docker" "start" "-a" "f5c1fcd29ae6bb3c867379c2dd788341160587bbbb97e25f2d2aba07d556f054"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking libc v0.2.37
[INFO] [stderr]     Checking bitflags v0.4.0
[INFO] [stderr]     Checking encode_unicode v0.1.3
[INFO] [stderr]     Checking nix v0.5.1
[INFO] [stderr]     Checking rand v0.4.2
[INFO] [stderr]     Checking rustyline v1.0.0
[INFO] [stderr]     Checking market-sim v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unknown lint: `unused_lints`
[INFO] [stderr]  --> src/main.rs:1:10
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![allow(unused_lints)]
[INFO] [stderr]   |          ^^^^^^^^^^^^ help: did you mean: `unused_mut`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unknown_lints)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unknown lint: `unused_lints`
[INFO] [stderr]  --> src/main.rs:1:10
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![allow(unused_lints)]
[INFO] [stderr]   |          ^^^^^^^^^^^^ help: did you mean: `unused_mut`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unknown_lints)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find function `thread_rng` in this scope
[INFO] [stderr]   --> src/prediction/markov.rs:55:25
[INFO] [stderr]    |
[INFO] [stderr] 55 |                 let r = thread_rng().gen::<u32>() % (total_weight + value);
[INFO] [stderr]    |                         ^^^^^^^^^^ not found in this scope
[INFO] [stderr]    |
[INFO] [stderr] help: possible candidate is found in another module, you can import it into scope
[INFO] [stderr]    |
[INFO] [stderr] 2  | use minority::strategy::rand::thread_rng;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find function `thread_rng` in this scope
[INFO] [stderr]   --> src/prediction/markov.rs:55:25
[INFO] [stderr]    |
[INFO] [stderr] 55 |                 let r = thread_rng().gen::<u32>() % (total_weight + value);
[INFO] [stderr]    |                         ^^^^^^^^^^ not found in this scope
[INFO] [stderr]    |
[INFO] [stderr] help: possible candidate is found in another module, you can import it into scope
[INFO] [stderr]    |
[INFO] [stderr] 2  | use minority::strategy::rand::thread_rng;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]   --> src/prediction/markov.rs:33:66
[INFO] [stderr]    |
[INFO] [stderr] 12 | impl<T: Ord + Copy> Markov<T> {
[INFO] [stderr]    |      - this type parameter
[INFO] [stderr] ...
[INFO] [stderr] 33 |                         self.map.get(&first_key).unwrap().insert(&second_key, value + 1);
[INFO] [stderr]    |                                                                  ^^^^^^^^^^^
[INFO] [stderr]    |                                                                  |
[INFO] [stderr]    |                                                                  expected type parameter `T`, found `&T`
[INFO] [stderr]    |                                                                  help: consider removing the borrow: `second_key`
[INFO] [stderr]    |
[INFO] [stderr]    = note: expected type parameter `T`
[INFO] [stderr]                    found reference `&T`
[INFO] [stderr]    = help: type parameters must be constrained to match other types
[INFO] [stderr]    = note: for more information, visit https://doc.rust-lang.org/book/ch10-02-traits.html#traits-as-parameters
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]   --> src/prediction/markov.rs:35:66
[INFO] [stderr]    |
[INFO] [stderr] 12 | impl<T: Ord + Copy> Markov<T> {
[INFO] [stderr]    |      - this type parameter
[INFO] [stderr] ...
[INFO] [stderr] 35 |                         self.map.get(&first_key).unwrap().insert(&second_key, 1);
[INFO] [stderr]    |                                                                  ^^^^^^^^^^^
[INFO] [stderr]    |                                                                  |
[INFO] [stderr]    |                                                                  expected type parameter `T`, found `&T`
[INFO] [stderr]    |                                                                  help: consider removing the borrow: `second_key`
[INFO] [stderr]    |
[INFO] [stderr]    = note: expected type parameter `T`
[INFO] [stderr]                    found reference `&T`
[INFO] [stderr]    = help: type parameters must be constrained to match other types
[INFO] [stderr]    = note: for more information, visit https://doc.rust-lang.org/book/ch10-02-traits.html#traits-as-parameters
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]   --> src/prediction/markov.rs:39:38
[INFO] [stderr]    |
[INFO] [stderr] 12 | impl<T: Ord + Copy> Markov<T> {
[INFO] [stderr]    |      - this type parameter
[INFO] [stderr] ...
[INFO] [stderr] 39 |                     new_value.insert(&second_key, 1);
[INFO] [stderr]    |                                      ^^^^^^^^^^^
[INFO] [stderr]    |                                      |
[INFO] [stderr]    |                                      expected type parameter `T`, found `&T`
[INFO] [stderr]    |                                      help: consider removing the borrow: `second_key`
[INFO] [stderr]    |
[INFO] [stderr]    = note: expected type parameter `T`
[INFO] [stderr]                    found reference `&T`
[INFO] [stderr]    = help: type parameters must be constrained to match other types
[INFO] [stderr]    = note: for more information, visit https://doc.rust-lang.org/book/ch10-02-traits.html#traits-as-parameters
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]   --> src/prediction/markov.rs:40:37
[INFO] [stderr]    |
[INFO] [stderr] 40 |                     self.map.insert(&first_key, new_value);
[INFO] [stderr]    |                                     ^^^^^^^^^^
[INFO] [stderr]    |                                     |
[INFO] [stderr]    |                                     expected struct `std::vec::Vec`, found `&std::vec::Vec<T>`
[INFO] [stderr]    |                                     help: consider removing the borrow: `first_key`
[INFO] [stderr]    |
[INFO] [stderr]    = note: expected struct `std::vec::Vec<T>`
[INFO] [stderr]            found reference `&std::vec::Vec<T>`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]   --> src/prediction/markov.rs:47:27
[INFO] [stderr]    |
[INFO] [stderr] 47 |         if values.len() < self.step_size {
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^ expected `usize`, found `u32`
[INFO] [stderr]    |
[INFO] [stderr] help: you can convert an `u32` to `usize` and panic if the converted value wouldn't fit
[INFO] [stderr]    |
[INFO] [stderr] 47 |         if values.len() < self.step_size.try_into().unwrap() {
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]   --> src/prediction/markov.rs:53:17
[INFO] [stderr]    |
[INFO] [stderr] 53 |             for (key, value) in map {
[INFO] [stderr]    |                 ^^^^^^^^^^^^    --- this expression has type `&std::collections::BTreeMap<T, u32>`
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 expected struct `std::collections::BTreeMap`, found tuple
[INFO] [stderr]    |
[INFO] [stderr]    = note: expected struct `std::collections::BTreeMap<T, u32>`
[INFO] [stderr]                found tuple `(_, _)`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 7 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0308, E0425.
[INFO] [stderr] For more information about an error, try `rustc --explain E0308`.
[INFO] [stderr] error: could not compile `market-sim`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]   --> src/prediction/markov.rs:33:66
[INFO] [stderr]    |
[INFO] [stderr] 12 | impl<T: Ord + Copy> Markov<T> {
[INFO] [stderr]    |      - this type parameter
[INFO] [stderr] ...
[INFO] [stderr] 33 |                         self.map.get(&first_key).unwrap().insert(&second_key, value + 1);
[INFO] [stderr]    |                                                                  ^^^^^^^^^^^
[INFO] [stderr]    |                                                                  |
[INFO] [stderr]    |                                                                  expected type parameter `T`, found `&T`
[INFO] [stderr]    |                                                                  help: consider removing the borrow: `second_key`
[INFO] [stderr]    |
[INFO] [stderr]    = note: expected type parameter `T`
[INFO] [stderr]                    found reference `&T`
[INFO] [stderr]    = help: type parameters must be constrained to match other types
[INFO] [stderr]    = note: for more information, visit https://doc.rust-lang.org/book/ch10-02-traits.html#traits-as-parameters
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]   --> src/prediction/markov.rs:35:66
[INFO] [stderr]    |
[INFO] [stderr] 12 | impl<T: Ord + Copy> Markov<T> {
[INFO] [stderr]    |      - this type parameter
[INFO] [stderr] ...
[INFO] [stderr] 35 |                         self.map.get(&first_key).unwrap().insert(&second_key, 1);
[INFO] [stderr]    |                                                                  ^^^^^^^^^^^
[INFO] [stderr]    |                                                                  |
[INFO] [stderr]    |                                                                  expected type parameter `T`, found `&T`
[INFO] [stderr]    |                                                                  help: consider removing the borrow: `second_key`
[INFO] [stderr]    |
[INFO] [stderr]    = note: expected type parameter `T`
[INFO] [stderr]                    found reference `&T`
[INFO] [stderr]    = help: type parameters must be constrained to match other types
[INFO] [stderr]    = note: for more information, visit https://doc.rust-lang.org/book/ch10-02-traits.html#traits-as-parameters
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]   --> src/prediction/markov.rs:39:38
[INFO] [stderr]    |
[INFO] [stderr] 12 | impl<T: Ord + Copy> Markov<T> {
[INFO] [stderr]    |      - this type parameter
[INFO] [stderr] ...
[INFO] [stderr] 39 |                     new_value.insert(&second_key, 1);
[INFO] [stderr]    |                                      ^^^^^^^^^^^
[INFO] [stderr]    |                                      |
[INFO] [stderr]    |                                      expected type parameter `T`, found `&T`
[INFO] [stderr]    |                                      help: consider removing the borrow: `second_key`
[INFO] [stderr]    |
[INFO] [stderr]    = note: expected type parameter `T`
[INFO] [stderr]                    found reference `&T`
[INFO] [stderr]    = help: type parameters must be constrained to match other types
[INFO] [stderr]    = note: for more information, visit https://doc.rust-lang.org/book/ch10-02-traits.html#traits-as-parameters
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]   --> src/prediction/markov.rs:40:37
[INFO] [stderr]    |
[INFO] [stderr] 40 |                     self.map.insert(&first_key, new_value);
[INFO] [stderr]    |                                     ^^^^^^^^^^
[INFO] [stderr]    |                                     |
[INFO] [stderr]    |                                     expected struct `std::vec::Vec`, found `&std::vec::Vec<T>`
[INFO] [stderr]    |                                     help: consider removing the borrow: `first_key`
[INFO] [stderr]    |
[INFO] [stderr]    = note: expected struct `std::vec::Vec<T>`
[INFO] [stderr]            found reference `&std::vec::Vec<T>`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]   --> src/prediction/markov.rs:47:27
[INFO] [stderr]    |
[INFO] [stderr] 47 |         if values.len() < self.step_size {
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^ expected `usize`, found `u32`
[INFO] [stderr]    |
[INFO] [stderr] help: you can convert an `u32` to `usize` and panic if the converted value wouldn't fit
[INFO] [stderr]    |
[INFO] [stderr] 47 |         if values.len() < self.step_size.try_into().unwrap() {
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]   --> src/prediction/markov.rs:53:17
[INFO] [stderr]    |
[INFO] [stderr] 53 |             for (key, value) in map {
[INFO] [stderr]    |                 ^^^^^^^^^^^^    --- this expression has type `&std::collections::BTreeMap<T, u32>`
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 expected struct `std::collections::BTreeMap`, found tuple
[INFO] [stderr]    |
[INFO] [stderr]    = note: expected struct `std::collections::BTreeMap<T, u32>`
[INFO] [stderr]                found tuple `(_, _)`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 7 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0308, E0425.
[INFO] [stderr] For more information about an error, try `rustc --explain E0308`.
[INFO] [stderr] error: could not compile `market-sim`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "f5c1fcd29ae6bb3c867379c2dd788341160587bbbb97e25f2d2aba07d556f054"`
[INFO] running `"docker" "rm" "-f" "f5c1fcd29ae6bb3c867379c2dd788341160587bbbb97e25f2d2aba07d556f054"`
[INFO] [stdout] f5c1fcd29ae6bb3c867379c2dd788341160587bbbb97e25f2d2aba07d556f054
