[INFO] fetching crate base_u256 0.1.1...
[INFO] testing base_u256-0.1.1 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate base_u256 0.1.1 into /workspace/builds/worker-56/source
[INFO] validating manifest of crates.io crate base_u256 0.1.1 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate base_u256 0.1.1
[INFO] finished tweaking crates.io crate base_u256 0.1.1
[INFO] tweaked toml for crates.io crate base_u256 0.1.1 written to /workspace/builds/worker-56/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ux v0.1.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 627d1a0a4e8ee404da8e21923832accffe535aa7c57ec56c440ea9b06db5a317
[INFO] running `Command { std: "docker" "start" "-a" "627d1a0a4e8ee404da8e21923832accffe535aa7c57ec56c440ea9b06db5a317", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "627d1a0a4e8ee404da8e21923832accffe535aa7c57ec56c440ea9b06db5a317", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "627d1a0a4e8ee404da8e21923832accffe535aa7c57ec56c440ea9b06db5a317", kill_on_drop: false }`
[INFO] [stdout] 627d1a0a4e8ee404da8e21923832accffe535aa7c57ec56c440ea9b06db5a317
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e197615d382d3e5a37ef7c54c655d92a769955e7be5d700828b2f48e73e27d59
[INFO] running `Command { std: "docker" "start" "-a" "e197615d382d3e5a37ef7c54c655d92a769955e7be5d700828b2f48e73e27d59", kill_on_drop: false }`
[INFO] [stderr]    Compiling ux v0.1.3
[INFO] [stderr]    Compiling base_u256 v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 20.43s
[INFO] running `Command { std: "docker" "inspect" "e197615d382d3e5a37ef7c54c655d92a769955e7be5d700828b2f48e73e27d59", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e197615d382d3e5a37ef7c54c655d92a769955e7be5d700828b2f48e73e27d59", kill_on_drop: false }`
[INFO] [stdout] e197615d382d3e5a37ef7c54c655d92a769955e7be5d700828b2f48e73e27d59
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 54be0ccc2462d12c1f4edf861dc9b42add901441311e8dcc8cc8b45364ccd068
[INFO] running `Command { std: "docker" "start" "-a" "54be0ccc2462d12c1f4edf861dc9b42add901441311e8dcc8cc8b45364ccd068", kill_on_drop: false }`
[INFO] [stderr]    Compiling base_u256 v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.10s
[INFO] running `Command { std: "docker" "inspect" "54be0ccc2462d12c1f4edf861dc9b42add901441311e8dcc8cc8b45364ccd068", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "54be0ccc2462d12c1f4edf861dc9b42add901441311e8dcc8cc8b45364ccd068", kill_on_drop: false }`
[INFO] [stdout] 54be0ccc2462d12c1f4edf861dc9b42add901441311e8dcc8cc8b45364ccd068
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6c9ccafd79e14f3b368e2bd656b40981271c02b9fbedbdb2e9cf7f7fa16eaa61
[INFO] running `Command { std: "docker" "start" "-a" "6c9ccafd79e14f3b368e2bd656b40981271c02b9fbedbdb2e9cf7f7fa16eaa61", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/base_u256-dd9e43e7160fb5c5)
[INFO] [stdout] running 6 tests
[INFO] [stdout] test tests::base_u1024_decodes ... ok
[INFO] [stdout] test tests::base_u1024_encodes ... ok
[INFO] [stdout] test tests::base_u256_decodes ... ok
[INFO] [stdout] test tests::base_u256_encodes ... ok
[INFO] [stdout] test tests::base_u64_decodes ... ok
[INFO] [stdout] test tests::base_u64_encodes ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests base_u256
[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" "6c9ccafd79e14f3b368e2bd656b40981271c02b9fbedbdb2e9cf7f7fa16eaa61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c9ccafd79e14f3b368e2bd656b40981271c02b9fbedbdb2e9cf7f7fa16eaa61", kill_on_drop: false }`
[INFO] [stdout] 6c9ccafd79e14f3b368e2bd656b40981271c02b9fbedbdb2e9cf7f7fa16eaa61