[INFO] updating cached repository https://github.com/huwb/learningrust
[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] 419b6eacb02bba0520897cba8888fb5184f3a1b8
[INFO] checking huwb/learningrust against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhuwb%2Flearningrust" "/workspace/builds/worker-2/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/huwb/learningrust on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/huwb/learningrust
[INFO] finished tweaking git repo https://github.com/huwb/learningrust
[INFO] tweaked toml for git repo https://github.com/huwb/learningrust written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/huwb/learningrust already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "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] 8f3cc849d212fae009a21dccd07b9f1984198d9357766ec2c101f5e440a10c96
[INFO] running `"docker" "start" "-a" "8f3cc849d212fae009a21dccd07b9f1984198d9357766ec2c101f5e440a10c96"`
[INFO] [stderr]     Checking libc v0.2.34
[INFO] [stderr]     Checking time v0.1.39
[INFO] [stderr]     Checking rand v0.3.19
[INFO] [stderr]     Checking simple-stopwatch v0.1.4
[INFO] [stderr]     Checking learningrust v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/state_pattern.rs:13:23
[INFO] [stderr]    |
[INFO] [stderr] 13 |     state: Option<Box<State>>,
[INFO] [stderr]    |                       ^^^^^ help: use `dyn`: `dyn State`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/state_pattern.rs:47:47
[INFO] [stderr]    |
[INFO] [stderr] 47 |     fn request_review(self: Box<Self>) -> Box<State>;
[INFO] [stderr]    |                                               ^^^^^ help: use `dyn`: `dyn State`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/state_pattern.rs:48:40
[INFO] [stderr]    |
[INFO] [stderr] 48 |     fn approve(self: Box<Self>) -> Box<State>;
[INFO] [stderr]    |                                        ^^^^^ help: use `dyn`: `dyn State`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/state_pattern.rs:57:47
[INFO] [stderr]    |
[INFO] [stderr] 57 |     fn request_review(self: Box<Self>) -> Box<State> {
[INFO] [stderr]    |                                               ^^^^^ help: use `dyn`: `dyn State`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/state_pattern.rs:60:40
[INFO] [stderr]    |
[INFO] [stderr] 60 |     fn approve(self: Box<Self>) -> Box<State> {
[INFO] [stderr]    |                                        ^^^^^ help: use `dyn`: `dyn State`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/state_pattern.rs:68:47
[INFO] [stderr]    |
[INFO] [stderr] 68 |     fn request_review(self: Box<Self>) -> Box<State> {
[INFO] [stderr]    |                                               ^^^^^ help: use `dyn`: `dyn State`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/state_pattern.rs:71:40
[INFO] [stderr]    |
[INFO] [stderr] 71 |     fn approve(self: Box<Self>) -> Box<State> {
[INFO] [stderr]    |                                        ^^^^^ help: use `dyn`: `dyn State`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/state_pattern.rs:79:47
[INFO] [stderr]    |
[INFO] [stderr] 79 |     fn request_review(self: Box<Self>) -> Box<State> {
[INFO] [stderr]    |                                               ^^^^^ help: use `dyn`: `dyn State`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/state_pattern.rs:82:40
[INFO] [stderr]    |
[INFO] [stderr] 82 |     fn approve(self: Box<Self>) -> Box<State> {
[INFO] [stderr]    |                                        ^^^^^ help: use `dyn`: `dyn State`
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/patterns_chapter.rs:14:19
[INFO] [stderr]    |
[INFO] [stderr] 14 |         Some(y @ 1...3) => println!("It's a thricer: {}", y),
[INFO] [stderr]    |                   ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/threadpool.rs:41:20
[INFO] [stderr]    |
[INFO] [stderr] 41 | pub type Job = Box<FnBox + Send>;
[INFO] [stderr]    |                    ^^^^^^^^^^^^ help: use `dyn`: `dyn FnBox + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/state_pattern.rs:13:23
[INFO] [stderr]    |
[INFO] [stderr] 13 |     state: Option<Box<State>>,
[INFO] [stderr]    |                       ^^^^^ help: use `dyn`: `dyn State`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/state_pattern.rs:47:47
[INFO] [stderr]    |
[INFO] [stderr] 47 |     fn request_review(self: Box<Self>) -> Box<State>;
[INFO] [stderr]    |                                               ^^^^^ help: use `dyn`: `dyn State`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/state_pattern.rs:48:40
[INFO] [stderr]    |
[INFO] [stderr] 48 |     fn approve(self: Box<Self>) -> Box<State>;
[INFO] [stderr]    |                                        ^^^^^ help: use `dyn`: `dyn State`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/state_pattern.rs:57:47
[INFO] [stderr]    |
[INFO] [stderr] 57 |     fn request_review(self: Box<Self>) -> Box<State> {
[INFO] [stderr]    |                                               ^^^^^ help: use `dyn`: `dyn State`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/state_pattern.rs:60:40
[INFO] [stderr]    |
[INFO] [stderr] 60 |     fn approve(self: Box<Self>) -> Box<State> {
[INFO] [stderr]    |                                        ^^^^^ help: use `dyn`: `dyn State`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/state_pattern.rs:68:47
[INFO] [stderr]    |
[INFO] [stderr] 68 |     fn request_review(self: Box<Self>) -> Box<State> {
[INFO] [stderr]    |                                               ^^^^^ help: use `dyn`: `dyn State`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/state_pattern.rs:71:40
[INFO] [stderr]    |
[INFO] [stderr] 71 |     fn approve(self: Box<Self>) -> Box<State> {
[INFO] [stderr]    |                                        ^^^^^ help: use `dyn`: `dyn State`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/state_pattern.rs:79:47
[INFO] [stderr]    |
[INFO] [stderr] 79 |     fn request_review(self: Box<Self>) -> Box<State> {
[INFO] [stderr]    |                                               ^^^^^ help: use `dyn`: `dyn State`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/state_pattern.rs:82:40
[INFO] [stderr]    |
[INFO] [stderr] 82 |     fn approve(self: Box<Self>) -> Box<State> {
[INFO] [stderr]    |                                        ^^^^^ help: use `dyn`: `dyn State`
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/patterns_chapter.rs:14:19
[INFO] [stderr]    |
[INFO] [stderr] 14 |         Some(y @ 1...3) => println!("It's a thricer: {}", y),
[INFO] [stderr]    |                   ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/threadpool.rs:41:20
[INFO] [stderr]    |
[INFO] [stderr] 41 | pub type Job = Box<FnBox + Send>;
[INFO] [stderr]    |                    ^^^^^^^^^^^^ help: use `dyn`: `dyn FnBox + Send`
[INFO] [stderr] 
[INFO] [stderr] error[E0606]: casting `f32` as `usize` is invalid
[INFO] [stderr]   --> src/spring.rs:31:26
[INFO] [stderr]    |
[INFO] [stderr] 31 |         let step_count = step_count_f as usize;
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error; 11 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0606`.
[INFO] [stderr] error: could not compile `learningrust`.
[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[E0606]: casting `f32` as `usize` is invalid
[INFO] [stderr]   --> src/spring.rs:31:26
[INFO] [stderr]    |
[INFO] [stderr] 31 |         let step_count = step_count_f as usize;
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error; 11 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0606`.
[INFO] [stderr] error: could not compile `learningrust`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "8f3cc849d212fae009a21dccd07b9f1984198d9357766ec2c101f5e440a10c96"`
[INFO] running `"docker" "rm" "-f" "8f3cc849d212fae009a21dccd07b9f1984198d9357766ec2c101f5e440a10c96"`
[INFO] [stdout] 8f3cc849d212fae009a21dccd07b9f1984198d9357766ec2c101f5e440a10c96