[INFO] cloning repository https://github.com/ChrisMeyering/rust_cryptochain
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ChrisMeyering/rust_cryptochain" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FChrisMeyering%2Frust_cryptochain", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FChrisMeyering%2Frust_cryptochain'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 49cdb58e90519876bd371ad531adbd90dcc51275
[INFO] testing ChrisMeyering/rust_cryptochain against master#99e3aef02079e9c10583638520cd0c134dc3a01d for pr-85530
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FChrisMeyering%2Frust_cryptochain" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ChrisMeyering/rust_cryptochain on toolchain 99e3aef02079e9c10583638520cd0c134dc3a01d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ChrisMeyering/rust_cryptochain
[INFO] finished tweaking git repo https://github.com/ChrisMeyering/rust_cryptochain
[INFO] tweaked toml for git repo https://github.com/ChrisMeyering/rust_cryptochain written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/ChrisMeyering/rust_cryptochain already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 11bf347dc7d224d7076570d7cdc465140d2e23d5f98e1c3bc859d9c4286b8839
[INFO] running `Command { std: "docker" "start" "-a" "11bf347dc7d224d7076570d7cdc465140d2e23d5f98e1c3bc859d9c4286b8839", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "11bf347dc7d224d7076570d7cdc465140d2e23d5f98e1c3bc859d9c4286b8839", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11bf347dc7d224d7076570d7cdc465140d2e23d5f98e1c3bc859d9c4286b8839", kill_on_drop: false }`
[INFO] [stdout] 11bf347dc7d224d7076570d7cdc465140d2e23d5f98e1c3bc859d9c4286b8839
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1c1ad39c7685e79e04f175decd827fcdc6c428c71fa410f72c7f249b3d80f109
[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" "1c1ad39c7685e79e04f175decd827fcdc6c428c71fa410f72c7f249b3d80f109", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.16
[INFO] [stderr]    Compiling libc v0.2.67
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling subtle v2.2.2
[INFO] [stderr]    Compiling hex v0.4.2
[INFO] [stderr]    Compiling typenum v1.11.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.9
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling generic-array v0.12.3
[INFO] [stderr]    Compiling digest v0.8.1
[INFO] [stderr]    Compiling block-buffer v0.7.3
[INFO] [stderr]    Compiling sha2 v0.8.1
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling zeroize_derive v1.0.0
[INFO] [stderr]    Compiling zeroize v1.1.0
[INFO] [stderr]    Compiling curve25519-dalek v2.0.0
[INFO] [stderr]    Compiling x25519-dalek v0.6.0
[INFO] [stderr]    Compiling crypto v0.1.0 (/opt/rustwide/workdir/crypto)
[INFO] [stderr]    Compiling blockchain v0.1.0 (/opt/rustwide/workdir/blockchain)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 27.15s
[INFO] running `Command { std: "docker" "inspect" "1c1ad39c7685e79e04f175decd827fcdc6c428c71fa410f72c7f249b3d80f109", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c1ad39c7685e79e04f175decd827fcdc6c428c71fa410f72c7f249b3d80f109", kill_on_drop: false }`
[INFO] [stdout] 1c1ad39c7685e79e04f175decd827fcdc6c428c71fa410f72c7f249b3d80f109
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8d1c1bb887a6865d25afa62183a81c85238562259f04aee027c4d94ba1f0619a
[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" "8d1c1bb887a6865d25afa62183a81c85238562259f04aee027c4d94ba1f0619a", kill_on_drop: false }`
[INFO] [stderr]    Compiling crypto v0.1.0 (/opt/rustwide/workdir/crypto)
[INFO] [stderr]    Compiling blockchain v0.1.0 (/opt/rustwide/workdir/blockchain)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> blockchain/src/unit_tests/blockchain_test.rs:75:13
[INFO] [stdout]    |
[INFO] [stdout] 75 |         let mut data_map = Block::get_data_map(&timestamp, &last_hash, &data, nonce, difficulty); 
[INFO] [stdout]    |             ----^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.97s
[INFO] running `Command { std: "docker" "inspect" "8d1c1bb887a6865d25afa62183a81c85238562259f04aee027c4d94ba1f0619a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d1c1bb887a6865d25afa62183a81c85238562259f04aee027c4d94ba1f0619a", kill_on_drop: false }`
[INFO] [stdout] 8d1c1bb887a6865d25afa62183a81c85238562259f04aee027c4d94ba1f0619a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 634c664cdcc5dfb45db8ec511372017cb68a4b6f79c755bc16fb7db05f94b52e
[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" "634c664cdcc5dfb45db8ec511372017cb68a4b6f79c755bc16fb7db05f94b52e", kill_on_drop: false }`
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> blockchain/src/unit_tests/blockchain_test.rs:75:13
[INFO] [stderr]    |
[INFO] [stderr] 75 |         let mut data_map = Block::get_data_map(&timestamp, &last_hash, &data, nonce, difficulty); 
[INFO] [stderr]    |             ----^^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/blockchain-2772e50944157897)
[INFO] [stdout] running 39 tests
[INFO] [stdout] test unit_tests::block_test::block_struct_data::struct_has_proper_fields ... ok
[INFO] [stdout] test unit_tests::block_test::adjust_difficulty::adjusts_difficulty_if_out_of_bounds ... ok
[INFO] [stdout] test unit_tests::block_test::is_valid_difficulty::difficulties_are_equal::false_if_not_min_or_max ... ok
[INFO] [stdout] test unit_tests::block_test::is_valid_difficulty::difficulties_are_equal::true_if_min_or_max ... ok
[INFO] [stdout] test unit_tests::block_test::is_valid_difficulty::difficulties_are_offset_by_more_than_one::false_if_both_difficulties_within_bounds ... ok
[INFO] [stdout] test unit_tests::block_test::is_valid_difficulty::difficulties_are_offset_by_more_than_one::false_if_new_difficulty_out_of_bounds ... ok
[INFO] [stdout] test unit_tests::block_test::is_valid_difficulty::difficulties_are_offset_by_more_than_one::only_new_difficulty_within_bounds::false_if_new_difficulty_not_equal_to_closest_bound ... ok
[INFO] [stdout] test unit_tests::block_test::is_valid_difficulty::difficulties_offest_by_one::true_when_new_difficulty_within_bounds ... ok
[INFO] [stdout] test unit_tests::block_test::is_valid_difficulty::difficulties_are_offset_by_more_than_one::false_if_both_difficulties_out_of_bounds ... ok
[INFO] [stdout] test unit_tests::block_test::is_valid_difficulty::difficulties_offest_by_one::false_when_new_difficulty_outside_of_bounds ... ok
[INFO] [stdout] test unit_tests::block_test::block_struct_data::genesis_creates_block_instance_with_expected_data ... ok
[INFO] [stdout] test unit_tests::block_test::is_valid_difficulty::difficulties_are_offset_by_more_than_one::only_new_difficulty_within_bounds::true_if_new_difficulty_equals_closest_bound ... ok
[INFO] [stdout] test unit_tests::block_test::is_valid_block::false_if_new_block_hash_violates_difficulty_constraint ... ok
[INFO] [stdout] test unit_tests::block_test::adjust_difficulty::has_correct_upper_limit ... ok
[INFO] [stdout] test unit_tests::block_test::mine_block::hash_has_256_bits_and_matches_difficulty_constraint ... ok
[INFO] [stdout] test unit_tests::block_test::mine_block::sets_hash_based_on_input ... ok
[INFO] [stdout] test unit_tests::block_test::is_valid_block::false_if_new_block_difficulty_invalid ... ok
[INFO] [stdout] test unit_tests::block_test::mine_block::sets_data_field ... ok
[INFO] [stdout] test unit_tests::block_test::adjust_difficulty::increases_difficulty_if_elapsed_time_is_negative ... ok
[INFO] [stdout] test unit_tests::blockchain_test::blockchain_struct_data::new_initializes_chain_properly ... ok
[INFO] [stdout] test unit_tests::block_test::mine_block::sets_valid_new_difficulty ... ok
[INFO] [stdout] test unit_tests::block_test::is_valid_block::false_if_new_block_last_hash_neq_last_block_hash ... ok
[INFO] [stdout] test unit_tests::block_test::adjust_difficulty::lowers_difficulty_for_slowly_mined_block ... ok
[INFO] [stdout] test unit_tests::block_test::adjust_difficulty::has_correct_lower_limit ... ok
[INFO] [stdout] test unit_tests::block_test::is_valid_block::true_if_new_block_is_valid ... ok
[INFO] [stdout] test unit_tests::block_test::adjust_difficulty::raises_difficulty_for_quickly_mined_block ... ok
[INFO] [stdout] test unit_tests::block_test::mine_block::sets_new_block_last_hash_to_last_block_hash ... ok
[INFO] [stdout] test unit_tests::blockchain_test::add_block::adds_a_new_block_to_the_chain ... ok
[INFO] [stdout] test unit_tests::blockchain_test::add_block::new_block_is_valid ... ok
[INFO] [stdout] test unit_tests::blockchain_test::replace_chain::replaces_chain_when_new_chain_is_longer_and_valid ... ok
[INFO] [stdout] test unit_tests::blockchain_test::replace_chain::does_not_replace_chain_when_new_chain_is_not_longer ... ok
[INFO] [stdout] test unit_tests::blockchain_test::is_valid_chain::false_if_chain_contains_block_with_difficulty_constraint_violated ... ok
[INFO] [stdout] test unit_tests::block_test::is_valid_block::false_if_new_block_contents_modified ... ok
[INFO] [stdout] test unit_tests::blockchain_test::is_valid_chain::false_if_a_last_hash_reference_has_changed ... ok
[INFO] [stdout] test unit_tests::blockchain_test::is_valid_chain::false_if_first_block_neq_genesis ... ok
[INFO] [stdout] test unit_tests::blockchain_test::replace_chain::does_not_replace_chain_when_new_chain_is_longer_but_contains_invalid_block ... ok
[INFO] [stdout] test unit_tests::blockchain_test::is_valid_chain::false_if_chain_contains_block_with_jumped_difficulty ... ok
[INFO] [stdout] test unit_tests::blockchain_test::is_valid_chain::false_if_chain_contains_block_with_invalid_field ... ok
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/crypto-5a79855878ddd67e)
[INFO] [stdout] test unit_tests::blockchain_test::is_valid_chain::true_if_chain_contains_only_valid_block ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 39 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.03s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stderr]    Doc-tests crypto
[INFO] [stdout] test unit_tests::cryptohash_tests::hash::generates_sha256_hash ... ok
[INFO] [stdout] test unit_tests::cryptohash_tests::is_valid_hash::on_wrong_length_hash ... ok
[INFO] [stdout] test unit_tests::cryptohash_tests::is_valid_hash::on_hash_with_insufficient_leading_zeros ... ok
[INFO] [stdout] test unit_tests::cryptohash_tests::is_valid_hash::on_valid_hash ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests blockchain
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "634c664cdcc5dfb45db8ec511372017cb68a4b6f79c755bc16fb7db05f94b52e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "634c664cdcc5dfb45db8ec511372017cb68a4b6f79c755bc16fb7db05f94b52e", kill_on_drop: false }`
[INFO] [stdout] 634c664cdcc5dfb45db8ec511372017cb68a4b6f79c755bc16fb7db05f94b52e