[INFO] crate compact 0.2.15 is already in cache
[INFO] testing compact-0.2.15 against try#03a1ea71b075ab964b5278bc6e74cd6c52c36ee0 for pr-74409
[INFO] extracting crate compact 0.2.15 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate compact 0.2.15 on toolchain 03a1ea71b075ab964b5278bc6e74cd6c52c36ee0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate compact 0.2.15
[INFO] finished tweaking crates.io crate compact 0.2.15
[INFO] tweaked toml for crates.io crate compact 0.2.15 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bd7b7ed72eb5922732331274be4f779f8f986087d7f639b849a16378421dbe8c
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "bd7b7ed72eb5922732331274be4f779f8f986087d7f639b849a16378421dbe8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bd7b7ed72eb5922732331274be4f779f8f986087d7f639b849a16378421dbe8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd7b7ed72eb5922732331274be4f779f8f986087d7f639b849a16378421dbe8c", kill_on_drop: false }`
[INFO] [stdout] bd7b7ed72eb5922732331274be4f779f8f986087d7f639b849a16378421dbe8c
[INFO] running `Command { std: "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@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 236327d494be673c52222fb24993db9cc593eb5ab2211ee6f7dd777dfee63cfc
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "236327d494be673c52222fb24993db9cc593eb5ab2211ee6f7dd777dfee63cfc", kill_on_drop: false }`
[INFO] [stderr]    Compiling hamming v0.1.3
[INFO] [stderr]    Compiling primal-estimate v0.2.1
[INFO] [stderr]    Compiling simple_allocator_trait v0.1.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling primal-bit v0.2.4
[INFO] [stderr]    Compiling primal-sieve v0.2.9
[INFO] [stderr]    Compiling primal-check v0.2.3
[INFO] [stderr]    Compiling primal v0.2.3
[INFO] [stderr]    Compiling compact v0.2.15 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the feature `specialization` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]   --> src/lib.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | #![feature(specialization)]
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout]    = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]    --> src/compact_hash_map.rs:207:45
[INFO] [stdout]     |
[INFO] [stdout] 207 |     static ref PRIME_SIEVE: primal::Sieve = { primal::Sieve::new(1_000_000) };
[INFO] [stdout]     |                                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_braces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.41s
[INFO] running `Command { std: "docker" "inspect" "236327d494be673c52222fb24993db9cc593eb5ab2211ee6f7dd777dfee63cfc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "236327d494be673c52222fb24993db9cc593eb5ab2211ee6f7dd777dfee63cfc", kill_on_drop: false }`
[INFO] [stdout] 236327d494be673c52222fb24993db9cc593eb5ab2211ee6f7dd777dfee63cfc
[INFO] running `Command { std: "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@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ed54654fdb08c9cf16b859eb6ffeaff9c99ce9c53c3de70a86f77e533a03630b
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "ed54654fdb08c9cf16b859eb6ffeaff9c99ce9c53c3de70a86f77e533a03630b", kill_on_drop: false }`
[INFO] [stdout] warning: the feature `specialization` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]   --> src/lib.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | #![feature(specialization)]
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout]    = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling compact v0.2.15 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]    --> src/compact_hash_map.rs:207:45
[INFO] [stdout]     |
[INFO] [stdout] 207 |     static ref PRIME_SIEVE: primal::Sieve = { primal::Sieve::new(1_000_000) };
[INFO] [stdout]     |                                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_braces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `specialization` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]   --> src/lib.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | #![feature(specialization)]
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout]    = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]    --> src/compact_hash_map.rs:207:45
[INFO] [stdout]     |
[INFO] [stdout] 207 |     static ref PRIME_SIEVE: primal::Sieve = { primal::Sieve::new(1_000_000) };
[INFO] [stdout]     |                                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_braces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.07s
[INFO] running `Command { std: "docker" "inspect" "ed54654fdb08c9cf16b859eb6ffeaff9c99ce9c53c3de70a86f77e533a03630b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed54654fdb08c9cf16b859eb6ffeaff9c99ce9c53c3de70a86f77e533a03630b", kill_on_drop: false }`
[INFO] [stdout] ed54654fdb08c9cf16b859eb6ffeaff9c99ce9c53c3de70a86f77e533a03630b
[INFO] running `Command { std: "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@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 60ff97343b439ead64a3765790830510ec2d04e4137aa8126332199a55f049e7
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "60ff97343b439ead64a3765790830510ec2d04e4137aa8126332199a55f049e7", kill_on_drop: false }`
[INFO] [stderr] warning: the feature `specialization` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stderr]   --> src/lib.rs:17:12
[INFO] [stderr]    |
[INFO] [stderr] 17 | #![feature(specialization)]
[INFO] [stderr]    |            ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(incomplete_features)]` on by default
[INFO] [stderr]    = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]    --> src/compact_hash_map.rs:207:45
[INFO] [stderr]     |
[INFO] [stderr] 207 |     static ref PRIME_SIEVE: primal::Sieve = { primal::Sieve::new(1_000_000) };
[INFO] [stderr]     |                                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_braces)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `specialization` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stderr]   --> src/lib.rs:17:12
[INFO] [stderr]    |
[INFO] [stderr] 17 | #![feature(specialization)]
[INFO] [stderr]    |            ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(incomplete_features)]` on by default
[INFO] [stderr]    = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]    --> src/compact_hash_map.rs:207:45
[INFO] [stderr]     |
[INFO] [stderr] 207 |     static ref PRIME_SIEVE: primal::Sieve = { primal::Sieve::new(1_000_000) };
[INFO] [stderr]     |                                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_braces)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/compact-8a4ee8b3666d54e6
[INFO] [stdout] 
[INFO] [stdout] running 26 tests
[INFO] [stdout] test compact_dict::remove_iter ... ok
[INFO] [stdout] test compact_dict::values_mut ... ok
[INFO] [stdout] test compact_dict::very_basic ... ok
[INFO] [stdout] test compact_dict::push_at ... ok
[INFO] [stdout] test compact_dict::very_basic2 ... ok
[INFO] [stdout] test compact_dict::iter ... ok
[INFO] [stdout] test compact_dict::pairs ... ok
[INFO] [stdout] test compact_hash_map::ensure_capacity_works ... ok
[INFO] [stdout] test compact_hash_map::very_basic1 ... ok
[INFO] [stdout] test compact_hash_map::values_mut ... ok
[INFO] [stdout] test compact_hash_map::very_basic2 ... ok
[INFO] [stdout] test compact_hash_map::pairs ... ok
[INFO] [stdout] test compact_hash_map::map_len_is_the_amount_of_inserted_and_not_removed_items ... ok
[INFO] [stdout] test compact_option::basic_option ... ok
[INFO] [stdout] test compact_vec::basic_vector ... ok
[INFO] [stdout] test compact_hash_map::compact_notcopy ... ok
[INFO] [stdout] test compact_hash_map::compact_copy ... ok
[INFO] [stdout] test compact_vec::nested_vector ... ok
[INFO] [stdout] test compact_hash_map::iter ... ok
[INFO] [stdout] test compact_hash_map::when_there_are_lots_of_dead_tombstoned_entries_capacity_is_not_doubled ... ok
[INFO] [stdout] test compact_hash_map::when_there_are_lots_of_few_tombstoned_entries_capacity_is_doubled ... ok
[INFO] [stdout] test compact_hash_map::remove_iter ... ok
[INFO] [stdout] test compact_hash_map::basic ... ok
[INFO] [stdout] test compact_dict::basic ... ok
[INFO] [stdout] test compact_hash_map::push_at ... ok
[INFO] [stderr]    Doc-tests compact
[INFO] [stdout] test compact_hash_map::insert_after_remove_works_same_hash ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 26 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr] warning: the feature `specialization` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stderr]   --> /opt/rustwide/workdir/src/lib.rs:17:12
[INFO] [stderr]    |
[INFO] [stderr] 17 | #![feature(specialization)]
[INFO] [stderr]    |            ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(incomplete_features)]` on by default
[INFO] [stderr]    = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]    --> /opt/rustwide/workdir/src/compact_hash_map.rs:207:45
[INFO] [stderr]     |
[INFO] [stderr] 207 |     static ref PRIME_SIEVE: primal::Sieve = { primal::Sieve::new(1_000_000) };
[INFO] [stderr]     |                                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_braces)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "60ff97343b439ead64a3765790830510ec2d04e4137aa8126332199a55f049e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60ff97343b439ead64a3765790830510ec2d04e4137aa8126332199a55f049e7", kill_on_drop: false }`
[INFO] [stdout] 60ff97343b439ead64a3765790830510ec2d04e4137aa8126332199a55f049e7