[INFO] cloning repository https://github.com/rklaehn/rust-hypercore-playground
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rklaehn/rust-hypercore-playground" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frklaehn%2Frust-hypercore-playground", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frklaehn%2Frust-hypercore-playground'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bb11c924ed6dd5fa6ef04235156254fec3331e27
[INFO] testing rklaehn/rust-hypercore-playground against 1.59.0 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frklaehn%2Frust-hypercore-playground" "/workspace/builds/worker-44/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-44/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rklaehn/rust-hypercore-playground on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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 /workspace/builds/worker-44/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 `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-44/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-44/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2113ac7bf149f9994758c9d3028adad1a475a208be9f7027689dfe41c15cb04e
[INFO] running `Command { std: "docker" "start" "-a" "2113ac7bf149f9994758c9d3028adad1a475a208be9f7027689dfe41c15cb04e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2113ac7bf149f9994758c9d3028adad1a475a208be9f7027689dfe41c15cb04e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2113ac7bf149f9994758c9d3028adad1a475a208be9f7027689dfe41c15cb04e", kill_on_drop: false }`
[INFO] [stdout] 2113ac7bf149f9994758c9d3028adad1a475a208be9f7027689dfe41c15cb04e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-44/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-44/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 644280aedfc19e19cba5d24c62072797abb2e0b84bbefafc34c8e6ec007b2444
[INFO] running `Command { std: "docker" "start" "-a" "644280aedfc19e19cba5d24c62072797abb2e0b84bbefafc34c8e6ec007b2444", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.40
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling cfg-if v0.1.9
[INFO] [stderr]    Compiling rustc-demangle v0.1.16
[INFO] [stderr]    Compiling typenum v1.10.0
[INFO] [stderr]    Compiling autocfg v0.1.6
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling subtle v2.1.1
[INFO] [stderr]    Compiling byte-tools v0.3.1
[INFO] [stderr]    Compiling arrayvec v0.4.11
[INFO] [stderr]    Compiling nodrop v0.1.13
[INFO] [stderr]    Compiling flat-tree v4.1.0
[INFO] [stderr]    Compiling mkdirp v0.1.0
[INFO] [stderr]    Compiling constant_time_eq v0.1.4
[INFO] [stderr]    Compiling flat-tree v3.7.0
[INFO] [stderr]    Compiling opaque-debug v0.2.3
[INFO] [stderr]    Compiling fake-simd v0.1.2
[INFO] [stderr]    Compiling lazy_static v1.3.0
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]    Compiling block-padding v0.1.4
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling merkle-tree-stream v0.10.0
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling backtrace-sys v0.1.31
[INFO] [stderr]    Compiling clear_on_drop v0.2.3
[INFO] [stderr]    Compiling generic-array v0.12.3
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling blake2-rfc v0.2.18
[INFO] [stderr]    Compiling digest v0.8.1
[INFO] [stderr]    Compiling block-buffer v0.7.3
[INFO] [stderr]    Compiling sha2 v0.8.0
[INFO] [stderr]    Compiling curve25519-dalek v1.2.3
[INFO] [stderr]    Compiling backtrace v0.3.35
[INFO] [stderr]    Compiling failure v0.1.5
[INFO] [stderr]    Compiling random-access-storage v2.0.0
[INFO] [stderr]    Compiling memory-pager v0.8.0
[INFO] [stderr]    Compiling sleep-parser v0.8.0
[INFO] [stderr]    Compiling pretty-hash v0.4.0
[INFO] [stderr]    Compiling ed25519-dalek v0.9.1
[INFO] [stderr]    Compiling random-access-disk v0.8.0
[INFO] [stderr]    Compiling random-access-memory v1.0.0
[INFO] [stderr]    Compiling sparse-bitfield v0.8.1
[INFO] [stderr]    Compiling tree-index v0.5.0
[INFO] [stderr]    Compiling hypercore v0.10.0
[INFO] [stderr]    Compiling hypercore-playground v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `RandomAccessDisk`
[INFO] [stdout]  --> src/main.rs:4:26
[INFO] [stdout]   |
[INFO] [stdout] 4 | use random_access_disk::{RandomAccessDisk};
[INFO] [stdout]   |                          ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.06s
[INFO] running `Command { std: "docker" "inspect" "644280aedfc19e19cba5d24c62072797abb2e0b84bbefafc34c8e6ec007b2444", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "644280aedfc19e19cba5d24c62072797abb2e0b84bbefafc34c8e6ec007b2444", kill_on_drop: false }`
[INFO] [stdout] 644280aedfc19e19cba5d24c62072797abb2e0b84bbefafc34c8e6ec007b2444
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-44/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-44/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 68f9fd0d46939c6ca6e9eaa35b6a5d886a50676390e09c9a7a02dedd5027d3ff
[INFO] running `Command { std: "docker" "start" "-a" "68f9fd0d46939c6ca6e9eaa35b6a5d886a50676390e09c9a7a02dedd5027d3ff", kill_on_drop: false }`
[INFO] [stderr]    Compiling hypercore-playground v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `RandomAccessDisk`
[INFO] [stdout]  --> src/main.rs:4:26
[INFO] [stdout]   |
[INFO] [stdout] 4 | use random_access_disk::{RandomAccessDisk};
[INFO] [stdout]   |                          ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` 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 1.62s
[INFO] running `Command { std: "docker" "inspect" "68f9fd0d46939c6ca6e9eaa35b6a5d886a50676390e09c9a7a02dedd5027d3ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68f9fd0d46939c6ca6e9eaa35b6a5d886a50676390e09c9a7a02dedd5027d3ff", kill_on_drop: false }`
[INFO] [stdout] 68f9fd0d46939c6ca6e9eaa35b6a5d886a50676390e09c9a7a02dedd5027d3ff
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-44/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-44/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a0b6a509ca4468fbef57ac611961d15b134a06d45982ae16af0021ef41ddd9e1
[INFO] running `Command { std: "docker" "start" "-a" "a0b6a509ca4468fbef57ac611961d15b134a06d45982ae16af0021ef41ddd9e1", kill_on_drop: false }`
[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] warning: `hypercore-playground` (bin "hypercore-playground" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/hypercore_playground-f4b93cc7c640bb62)
[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" "a0b6a509ca4468fbef57ac611961d15b134a06d45982ae16af0021ef41ddd9e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a0b6a509ca4468fbef57ac611961d15b134a06d45982ae16af0021ef41ddd9e1", kill_on_drop: false }`
[INFO] [stdout] a0b6a509ca4468fbef57ac611961d15b134a06d45982ae16af0021ef41ddd9e1