[INFO] fetching crate pow_account 0.2.1...
[INFO] testing pow_account-0.2.1 against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210-2
[INFO] extracting crate pow_account 0.2.1 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate pow_account 0.2.1
[INFO] finished tweaking crates.io crate pow_account 0.2.1
[INFO] tweaked toml for crates.io crate pow_account 0.2.1 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate pow_account 0.2.1 on toolchain dec9417b8611e34e787a3e4c37686b5131f9e5c5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 23 packages to latest compatible versions
[INFO] [stderr]       Adding generic-array v0.14.7 (available: v0.14.9)
[INFO] [stderr]       Adding rand v0.8.6 (available: v0.10.1)
[INFO] [stderr]       Adding rand_core v0.6.4 (available: v0.10.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr] `license` should be used if the package license can be expressed with a standard SPDX expression.
[INFO] [stderr] `license-file` should be used if the package uses a non-standard license.
[INFO] [stderr] See https://doc.rust-lang.org/cargo/reference/manifest.html#the-license-and-license-file-fields for more information.
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3b6e014bb1a265994f68568c69f1eaf0d362bf7cf86bf59e4b591523e06fe83b
[INFO] running `Command { std: "docker" "start" "-a" "3b6e014bb1a265994f68568c69f1eaf0d362bf7cf86bf59e4b591523e06fe83b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3b6e014bb1a265994f68568c69f1eaf0d362bf7cf86bf59e4b591523e06fe83b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b6e014bb1a265994f68568c69f1eaf0d362bf7cf86bf59e4b591523e06fe83b", kill_on_drop: false }`
[INFO] [stdout] 3b6e014bb1a265994f68568c69f1eaf0d362bf7cf86bf59e4b591523e06fe83b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2eb5c3986bab58039911e76b05e5a7caff1f3538c62885e49512e58e8476ea9d
[INFO] running `Command { std: "docker" "start" "-a" "2eb5c3986bab58039911e76b05e5a7caff1f3538c62885e49512e58e8476ea9d", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr] `license` should be used if the package license can be expressed with a standard SPDX expression.
[INFO] [stderr] `license-file` should be used if the package uses a non-standard license.
[INFO] [stderr] See https://doc.rust-lang.org/cargo/reference/manifest.html#the-license-and-license-file-fields for more information.
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling getrandom v0.2.17
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.6
[INFO] [stderr]    Compiling block-buffer v0.10.4
[INFO] [stderr]    Compiling crypto-common v0.1.7
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling blake2 v0.10.6
[INFO] [stderr]    Compiling pow_account v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.92s
[INFO] running `Command { std: "docker" "inspect" "2eb5c3986bab58039911e76b05e5a7caff1f3538c62885e49512e58e8476ea9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2eb5c3986bab58039911e76b05e5a7caff1f3538c62885e49512e58e8476ea9d", kill_on_drop: false }`
[INFO] [stdout] 2eb5c3986bab58039911e76b05e5a7caff1f3538c62885e49512e58e8476ea9d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bc0de084c5c3d740e41effb3910b52b7d6acb7d27cdb5d4a5564835f0dd781f0
[INFO] running `Command { std: "docker" "start" "-a" "bc0de084c5c3d740e41effb3910b52b7d6acb7d27cdb5d4a5564835f0dd781f0", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr] `license` should be used if the package license can be expressed with a standard SPDX expression.
[INFO] [stderr] `license-file` should be used if the package uses a non-standard license.
[INFO] [stderr] See https://doc.rust-lang.org/cargo/reference/manifest.html#the-license-and-license-file-fields for more information.
[INFO] [stderr]    Compiling pow_account v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.47s
[INFO] running `Command { std: "docker" "inspect" "bc0de084c5c3d740e41effb3910b52b7d6acb7d27cdb5d4a5564835f0dd781f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc0de084c5c3d740e41effb3910b52b7d6acb7d27cdb5d4a5564835f0dd781f0", kill_on_drop: false }`
[INFO] [stdout] bc0de084c5c3d740e41effb3910b52b7d6acb7d27cdb5d4a5564835f0dd781f0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 09972d64be0d840477143e6ff2a6c3e3a99f00fd164b549ee6790e09db0d218d
[INFO] running `Command { std: "docker" "start" "-a" "09972d64be0d840477143e6ff2a6c3e3a99f00fd164b549ee6790e09db0d218d", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr] `license` should be used if the package license can be expressed with a standard SPDX expression.
[INFO] [stderr] `license-file` should be used if the package uses a non-standard license.
[INFO] [stderr] See https://doc.rust-lang.org/cargo/reference/manifest.html#the-license-and-license-file-fields for more information.
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/pow_account-c0adab3e4fe821ee)
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test pow_account::checks_the_hash_for_the_required_number_of_leading_zeros ... ok
[INFO] [stdout] test pow_account::new_entropy_has_a_length_of_32 ... ok
[INFO] [stdout] test pow_account::new_hash_prefix_has_non_zero_number_of_bits ... ok
[INFO] [stdout] test pow_account::new_entropy_is_unique ... ok
[INFO] [stdout] test pow_account::entropy_generates_256bit_hash ... ok
[INFO] [stdout] test pow_account::blake2s_hash_can_be_validated ... ok
[INFO] [stdout] test pow_account::default_target_matches_max_value ... ok
[INFO] [stdout] test pow_account::entropy_created_from_a_set_of_bytes ... ok
[INFO] [stderr]    Doc-tests pow_account
[INFO] [stdout] test pow_account::can_find_a_hash_which_starts_from_a_specific_pattern ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 5.67s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/lib.rs - HashFinder::new (line 109) ... ok
[INFO] [stdout] test src/lib.rs - (line 8) ... ok
[INFO] [stdout] test src/lib.rs - HashFinder::check (line 181) ... ok
[INFO] [stdout] test src/lib.rs - HashFinder::find (line 135) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.83s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "09972d64be0d840477143e6ff2a6c3e3a99f00fd164b549ee6790e09db0d218d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "09972d64be0d840477143e6ff2a6c3e3a99f00fd164b549ee6790e09db0d218d", kill_on_drop: false }`
[INFO] [stdout] 09972d64be0d840477143e6ff2a6c3e3a99f00fd164b549ee6790e09db0d218d