[INFO] crate counter 0.4.3 is already in cache
[INFO] testing counter-0.4.3 against try#41997647ba6a77908f6ef64401414feb00bccf16 for pr-71274
[INFO] extracting crate counter 0.4.3 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate counter 0.4.3 on toolchain 41997647ba6a77908f6ef64401414feb00bccf16
[INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate counter 0.4.3
[INFO] finished tweaking crates.io crate counter 0.4.3
[INFO] tweaked toml for crates.io crate counter 0.4.3 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+41997647ba6a77908f6ef64401414feb00bccf16" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] cb22038c7b8f2a0790f4d0918077fe72cdb64832d35a3a8880e70e2ca640cf7f
[INFO] running `"docker" "start" "-a" "cb22038c7b8f2a0790f4d0918077fe72cdb64832d35a3a8880e70e2ca640cf7f"`
[INFO] [stderr]    Compiling counter v0.4.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.28s
[INFO] running `"docker" "inspect" "cb22038c7b8f2a0790f4d0918077fe72cdb64832d35a3a8880e70e2ca640cf7f"`
[INFO] running `"docker" "rm" "-f" "cb22038c7b8f2a0790f4d0918077fe72cdb64832d35a3a8880e70e2ca640cf7f"`
[INFO] [stdout] cb22038c7b8f2a0790f4d0918077fe72cdb64832d35a3a8880e70e2ca640cf7f
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+41997647ba6a77908f6ef64401414feb00bccf16" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 591bd1160115c9eb160ac5266208fcc63a65e7025537c870f1f373924a4553e3
[INFO] running `"docker" "start" "-a" "591bd1160115c9eb160ac5266208fcc63a65e7025537c870f1f373924a4553e3"`
[INFO] [stderr]    Compiling counter v0.4.3 (/opt/rustwide/workdir)
[INFO] [stderr] warning: this method call currently resolves to `<&[T; N] as IntoIterator>::into_iter` (due to autoref coercions), but that might change in the future when `IntoIterator` impls for arrays are added.
[INFO] [stderr]    --> src/lib.rs:886:52
[INFO] [stderr]     |
[INFO] [stderr] 886 |         let expected: HashMap<char, usize> = items.into_iter().map(|(c, n)| (*c, n * 2)).collect();
[INFO] [stderr]     |                                                    ^^^^^^^^^ help: use `.iter()` instead of `.into_iter()` to avoid ambiguity: `iter`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(array_into_iter)]` on by default
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #66145 <https://github.com/rust-lang/rust/issues/66145>
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.74s
[INFO] running `"docker" "inspect" "591bd1160115c9eb160ac5266208fcc63a65e7025537c870f1f373924a4553e3"`
[INFO] running `"docker" "rm" "-f" "591bd1160115c9eb160ac5266208fcc63a65e7025537c870f1f373924a4553e3"`
[INFO] [stdout] 591bd1160115c9eb160ac5266208fcc63a65e7025537c870f1f373924a4553e3
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+41997647ba6a77908f6ef64401414feb00bccf16" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 418c9d863cc40976678bf35c169ed7fe11b18fd055969972217dccd7c0011829
[INFO] running `"docker" "start" "-a" "418c9d863cc40976678bf35c169ed7fe11b18fd055969972217dccd7c0011829"`
[INFO] [stderr] warning: this method call currently resolves to `<&[T; N] as IntoIterator>::into_iter` (due to autoref coercions), but that might change in the future when `IntoIterator` impls for arrays are added.
[INFO] [stderr]    --> src/lib.rs:886:52
[INFO] [stderr]     |
[INFO] [stderr] 886 |         let expected: HashMap<char, usize> = items.into_iter().map(|(c, n)| (*c, n * 2)).collect();
[INFO] [stderr]     |                                                    ^^^^^^^^^ help: use `.iter()` instead of `.into_iter()` to avoid ambiguity: `iter`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(array_into_iter)]` on by default
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #66145 <https://github.com/rust-lang/rust/issues/66145>
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/counter-1ca680dcef6ead96
[INFO] [stdout] 
[INFO] [stdout] running 23 tests
[INFO] [stdout] test tests::test_collect ... ok
[INFO] [stdout] test tests::test_add_update_iterable ... ok
[INFO] [stdout] test tests::test_composite_add_sub ... ok
[INFO] [stdout] test tests::test_creation ... ok
[INFO] [stdout] test tests::test_count_minimal_type ... ok
[INFO] [stdout] test tests::test_delete_key_from_backing_map ... ok
[INFO] [stdout] test tests::test_add_update_counter ... ok
[INFO] [stdout] test tests::test_add ... ok
[INFO] [stdout] test tests::test_intersection ... ok
[INFO] [stdout] test tests::test_most_common ... ok
[INFO] [stdout] test tests::test_most_common_tiebreaker_reversed ... ok
[INFO] [stdout] test tests::test_most_common_tiebreaker ... ok
[INFO] [stdout] test tests::test_most_common_ordered ... ok
[INFO] [stdout] test tests::test_sub ... ok
[INFO] [stdout] test tests::test_sub_update_counter ... ok
[INFO] [stdout] test tests::test_subtract ... ok
[INFO] [stdout] test tests::test_sub_update_iterable ... ok
[INFO] [stdout] test tests::test_update ... ok
[INFO] [stdout] test tests::test_non_usize_count ... ok
[INFO] [stdout] test tests::test_from_iter_tuple_with_duplicates ... ok
[INFO] [stdout] test tests::test_from_iter_tuple ... ok
[INFO] [stdout] test tests::test_from_iter_simple ... ok
[INFO] [stdout] test tests::test_union ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 23 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests counter
[INFO] [stdout] 
[INFO] [stdout] running 23 tests
[INFO] [stdout] test src/lib.rs -  (line 17) ... ok
[INFO] [stdout] test src/lib.rs -  (line 71) ... ok
[INFO] [stdout] test src/lib.rs -  (line 113) ... ok
[INFO] [stdout] test src/lib.rs - Counter<T, N>::add (line 323) ... ok
[INFO] [stdout] test src/lib.rs -  (line 58) ... ok
[INFO] [stdout] test src/lib.rs -  (line 9) ... ok
[INFO] [stdout] test src/lib.rs -  (line 33) ... ok
[INFO] [stdout] test src/lib.rs -  (line 44) ... ok
[INFO] [stdout] test src/lib.rs - Counter<T, N>::add_assign (line 293) ... ok
[INFO] [stdout] test src/lib.rs - Counter<T, N>::add (line 541) ... ok
[INFO] [stdout] test src/lib.rs - Counter<T, N>::from_iter (line 614) ... ok
[INFO] [stdout] test src/lib.rs - Counter<T, N>::from_iter (line 635) ... ok
[INFO] [stdout] test src/lib.rs - Counter<T, N>::bitor (line 464) ... ok
[INFO] [stdout] test src/lib.rs - Counter<T, N>::bitand (line 422) ... ok
[INFO] [stdout] test src/lib.rs - Counter<T, N>::add_assign (line 516) ... ok
[INFO] [stdout] test src/lib.rs - Counter<T, N>::most_common (line 216) ... ok
[INFO] [stdout] test src/lib.rs - Counter<T, N>::most_common_tiebreaker (line 236) ... ok
[INFO] [stdout] test src/lib.rs - Counter<T, N>::sub_assign (line 351) ... ok
[INFO] [stdout] test src/lib.rs - Counter<T, N>::subtract (line 182) ... ok
[INFO] [stdout] test src/lib.rs - Counter<T, N>::sub (line 590) ... ok
[INFO] [stdout] test src/lib.rs - Counter<T, N>::most_common_ordered (line 273) ... ok
[INFO] [stdout] test src/lib.rs - Counter<T, N>::sub (line 394) ... ok
[INFO] [stdout] test src/lib.rs - Counter<T, N>::sub_assign (line 566) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 23 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "418c9d863cc40976678bf35c169ed7fe11b18fd055969972217dccd7c0011829"`
[INFO] running `"docker" "rm" "-f" "418c9d863cc40976678bf35c169ed7fe11b18fd055969972217dccd7c0011829"`
[INFO] [stdout] 418c9d863cc40976678bf35c169ed7fe11b18fd055969972217dccd7c0011829