[INFO] updating cached repository https://github.com/rklaehn/rust-hypercore-playground
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] bb11c924ed6dd5fa6ef04235156254fec3331e27
[INFO] testing rklaehn/rust-hypercore-playground against 1.38.0 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Frklaehn%2Frust-hypercore-playground" "work/builds/worker-0/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rklaehn/rust-hypercore-playground on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/rklaehn/rust-hypercore-playground
[INFO] finished tweaking git repo https://github.com/rklaehn/rust-hypercore-playground
[INFO] tweaked toml for git repo https://github.com/rklaehn/rust-hypercore-playground written to work/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/rklaehn/rust-hypercore-playground already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] c37d38a3a51ad9ba7e987325d5ebdf205ac25409b21cbee6f8f5087911d8b3f5
[INFO] running `"docker" "start" "-a" "c37d38a3a51ad9ba7e987325d5ebdf205ac25409b21cbee6f8f5087911d8b3f5"`
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling subtle v2.1.1
[INFO] [stderr]    Compiling flat-tree v4.1.0
[INFO] [stderr]    Compiling flat-tree v3.7.0
[INFO] [stderr]    Compiling mkdirp v0.1.0
[INFO] [stderr]    Compiling clear_on_drop v0.2.3
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling blake2-rfc v0.2.18
[INFO] [stderr]    Compiling memory-pager v0.8.0
[INFO] [stderr]    Compiling random-access-storage v2.0.0
[INFO] [stderr]    Compiling pretty-hash v0.4.0
[INFO] [stderr]    Compiling random-access-memory v1.0.0
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling random-access-disk v0.8.0
[INFO] [stderr]    Compiling merkle-tree-stream v0.10.0
[INFO] [stderr]    Compiling block-buffer v0.7.3
[INFO] [stderr]    Compiling sleep-parser v0.8.0
[INFO] [stderr]    Compiling sparse-bitfield v0.8.1
[INFO] [stderr]    Compiling curve25519-dalek v1.2.3
[INFO] [stderr]    Compiling sha2 v0.8.0
[INFO] [stderr]    Compiling tree-index v0.5.0
[INFO] [stderr]    Compiling ed25519-dalek v0.9.1
[INFO] [stderr]    Compiling hypercore v0.10.0
[INFO] [stderr]    Compiling hypercore-playground v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `RandomAccessDisk`
[INFO] [stderr]  --> src/main.rs:4:26
[INFO] [stderr]   |
[INFO] [stderr] 4 | use random_access_disk::{RandomAccessDisk};
[INFO] [stderr]   |                          ^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.79s
[INFO] running `"docker" "inspect" "c37d38a3a51ad9ba7e987325d5ebdf205ac25409b21cbee6f8f5087911d8b3f5"`
[INFO] running `"docker" "rm" "-f" "c37d38a3a51ad9ba7e987325d5ebdf205ac25409b21cbee6f8f5087911d8b3f5"`
[INFO] [stdout] c37d38a3a51ad9ba7e987325d5ebdf205ac25409b21cbee6f8f5087911d8b3f5
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 21f583bc5e3a5d1ce7f8611efcdce095b455da2134229fd8f2d97df79652c345
[INFO] running `"docker" "start" "-a" "21f583bc5e3a5d1ce7f8611efcdce095b455da2134229fd8f2d97df79652c345"`
[INFO] [stderr]    Compiling hypercore-playground v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `RandomAccessDisk`
[INFO] [stderr]  --> src/main.rs:4:26
[INFO] [stderr]   |
[INFO] [stderr] 4 | use random_access_disk::{RandomAccessDisk};
[INFO] [stderr]   |                          ^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.33s
[INFO] running `"docker" "inspect" "21f583bc5e3a5d1ce7f8611efcdce095b455da2134229fd8f2d97df79652c345"`
[INFO] running `"docker" "rm" "-f" "21f583bc5e3a5d1ce7f8611efcdce095b455da2134229fd8f2d97df79652c345"`
[INFO] [stdout] 21f583bc5e3a5d1ce7f8611efcdce095b455da2134229fd8f2d97df79652c345
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen"`
[INFO] [stdout] 24bb7ccb3d2161f56f37ba2b4e5268fd351cde37db646e9f8bc93bb9e891a4a0
[INFO] running `"docker" "start" "-a" "24bb7ccb3d2161f56f37ba2b4e5268fd351cde37db646e9f8bc93bb9e891a4a0"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.20s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/hypercore_playground-7ddf3d5c89540f59
[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 `"docker" "inspect" "24bb7ccb3d2161f56f37ba2b4e5268fd351cde37db646e9f8bc93bb9e891a4a0"`
[INFO] running `"docker" "rm" "-f" "24bb7ccb3d2161f56f37ba2b4e5268fd351cde37db646e9f8bc93bb9e891a4a0"`
[INFO] [stdout] 24bb7ccb3d2161f56f37ba2b4e5268fd351cde37db646e9f8bc93bb9e891a4a0