[INFO] fetching crate primeval 0.2.2...
[INFO] extracting crate primeval 0.2.2 into work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/reg/primeval/0.2.2
[INFO] extracting crate primeval 0.2.2 into work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/reg/primeval/0.2.2
[INFO] validating manifest of primeval-0.2.2 on toolchain master#c8865d8e195813ade6b84434ac9f8850e7112d1a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of primeval-0.2.2 on toolchain try#e212b7d492c96d3837691ba29d32d5f468933fb8
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing primeval-0.2.2
[INFO] finished frobbing primeval-0.2.2
[INFO] frobbed toml for primeval-0.2.2 written to work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/reg/primeval/0.2.2/Cargo.toml
[INFO] started frobbing primeval-0.2.2
[INFO] finished frobbing primeval-0.2.2
[INFO] frobbed toml for primeval-0.2.2 written to work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/reg/primeval/0.2.2/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing primeval-0.2.2 against try#e212b7d492c96d3837691ba29d32d5f468933fb8 for pr-61629
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-2/try#e212b7d492c96d3837691ba29d32d5f468933fb8:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/reg/primeval/0.2.2:/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" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "build" "--frozen"`
[INFO] [stdout] 742ea6bf823e31bccd05e09195fceee49ecf3cbd06fbdfbbeb64f2ebf89fc2a5
[INFO] running `"docker" "start" "-a" "742ea6bf823e31bccd05e09195fceee49ecf3cbd06fbdfbbeb64f2ebf89fc2a5"`
[INFO] [stderr]    Compiling primeval v0.2.2 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/primeval.rs:23:40
[INFO] [stderr]    |
[INFO] [stderr] 23 | pub fn primes_gen(limit: usize) -> Box<Iterator<Item = usize>> {
[INFO] [stderr]    |                                        ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = usize>`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `CACHESIZE`
[INFO] [stderr]  --> src/primeval.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | const CACHESIZE: u64 = (1 << 14) * 8; // this should be the size of the CPU L1 cache
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fmt`
[INFO] [stderr]  --> src/bin.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::fmt;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.22s
[INFO] running `"docker" "inspect" "742ea6bf823e31bccd05e09195fceee49ecf3cbd06fbdfbbeb64f2ebf89fc2a5"`
[INFO] running `"docker" "rm" "-f" "742ea6bf823e31bccd05e09195fceee49ecf3cbd06fbdfbbeb64f2ebf89fc2a5"`
[INFO] [stdout] 742ea6bf823e31bccd05e09195fceee49ecf3cbd06fbdfbbeb64f2ebf89fc2a5
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-2/try#e212b7d492c96d3837691ba29d32d5f468933fb8:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/reg/primeval/0.2.2:/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" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] 701b6814bb1d7f5a6ba85af2d63122a38394a400eba62b748283f169e1ed77d2
[INFO] running `"docker" "start" "-a" "701b6814bb1d7f5a6ba85af2d63122a38394a400eba62b748283f169e1ed77d2"`
[INFO] [stderr]    Compiling primeval v0.2.2 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::fmt`
[INFO] [stderr]  --> src/bin.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::fmt;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `primeval::*`
[INFO] [stderr]  --> tests/primeval.rs:8:9
[INFO] [stderr]   |
[INFO] [stderr] 8 |     use primeval::*;
[INFO] [stderr]   |         ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/primeval.rs:23:40
[INFO] [stderr]    |
[INFO] [stderr] 23 | pub fn primes_gen(limit: usize) -> Box<Iterator<Item = usize>> {
[INFO] [stderr]    |                                        ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = usize>`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] error[E0369]: binary operation `==` cannot be applied to type `std::boxed::Box<dyn std::iter::Iterator<Item = usize>>`
[INFO] [stderr]   --> tests/primeval.rs:41:9
[INFO] [stderr]    |
[INFO] [stderr] 41 |         assert_eq!(primeval::primes_gen(20), vec![2,3,5,7,11,13,17,19]);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         std::boxed::Box<dyn std::iter::Iterator<Item = usize>>
[INFO] [stderr]    |         std::vec::Vec<{integer}>
[INFO] [stderr]    |
[INFO] [stderr]    = note: an implementation of `std::cmp::PartialEq` might be missing for `std::boxed::Box<dyn std::iter::Iterator<Item = usize>>`
[INFO] [stderr]    = note: this error 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] error[E0277]: `dyn std::iter::Iterator<Item = usize>` doesn't implement `std::fmt::Debug`
[INFO] [stderr]   --> tests/primeval.rs:41:9
[INFO] [stderr]    |
[INFO] [stderr] 41 |         assert_eq!(primeval::primes_gen(20), vec![2,3,5,7,11,13,17,19]);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `dyn std::iter::Iterator<Item = usize>` cannot be formatted using `{:?}` because it doesn't implement `std::fmt::Debug`
[INFO] [stderr]    |
[INFO] [stderr]    = help: the trait `std::fmt::Debug` is not implemented for `dyn std::iter::Iterator<Item = usize>`
[INFO] [stderr]    = note: required because of the requirements on the impl of `std::fmt::Debug` for `std::boxed::Box<dyn std::iter::Iterator<Item = usize>>`
[INFO] [stderr]    = note: required because of the requirements on the impl of `std::fmt::Debug` for `&std::boxed::Box<dyn std::iter::Iterator<Item = usize>>`
[INFO] [stderr]    = note: required by `std::fmt::Debug::fmt`
[INFO] [stderr]    = note: this error 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] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0277, E0369.
[INFO] [stderr] For more information about an error, try `rustc --explain E0277`.
[INFO] [stderr] warning: constant item is never used: `CACHESIZE`
[INFO] [stderr]  --> src/primeval.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | const CACHESIZE: u64 = (1 << 14) * 8; // this should be the size of the CPU L1 cache
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] error: Could not compile `primeval`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "701b6814bb1d7f5a6ba85af2d63122a38394a400eba62b748283f169e1ed77d2"`
[INFO] running `"docker" "rm" "-f" "701b6814bb1d7f5a6ba85af2d63122a38394a400eba62b748283f169e1ed77d2"`
[INFO] [stdout] 701b6814bb1d7f5a6ba85af2d63122a38394a400eba62b748283f169e1ed77d2