[INFO] cloning repository https://github.com/ClSlaid/kvs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ClSlaid/kvs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FClSlaid%2Fkvs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FClSlaid%2Fkvs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 06ebe5d1893aa8bf65cf2f5cf96fa73615c44944
[INFO] testing ClSlaid/kvs against beta-2021-09-08 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FClSlaid%2Fkvs" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ClSlaid/kvs 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 git repo https://github.com/ClSlaid/kvs
[INFO] finished tweaking git repo https://github.com/ClSlaid/kvs
[INFO] tweaked toml for git repo https://github.com/ClSlaid/kvs written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/ClSlaid/kvs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] d1cdcd256f5c95575d482c52db61e65ec93edc3b9ca558eb44d57e432094b1c1
[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" "d1cdcd256f5c95575d482c52db61e65ec93edc3b9ca558eb44d57e432094b1c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d1cdcd256f5c95575d482c52db61e65ec93edc3b9ca558eb44d57e432094b1c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1cdcd256f5c95575d482c52db61e65ec93edc3b9ca558eb44d57e432094b1c1", kill_on_drop: false }`
[INFO] [stdout] d1cdcd256f5c95575d482c52db61e65ec93edc3b9ca558eb44d57e432094b1c1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 53605e3364aa4d6e42f93da10e434592528276c64052708409c8144cd2e5f3a3
[INFO] running `Command { std: "docker" "start" "-a" "53605e3364aa4d6e42f93da10e434592528276c64052708409c8144cd2e5f3a3", kill_on_drop: false }`
[INFO] [stderr]    Compiling predicates-core v1.0.1
[INFO] [stderr]    Compiling wait-timeout v0.2.0
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling predicates v1.0.6
[INFO] [stderr]    Compiling predicates-tree v1.0.1
[INFO] [stderr]    Compiling assert_cmd v1.0.2
[INFO] [stderr]    Compiling kvs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `kvs::KvStore`
[INFO] [stdout]  --> src/bin/kvs.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use kvs::KvStore;
[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 10.91s
[INFO] running `Command { std: "docker" "inspect" "53605e3364aa4d6e42f93da10e434592528276c64052708409c8144cd2e5f3a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "53605e3364aa4d6e42f93da10e434592528276c64052708409c8144cd2e5f3a3", kill_on_drop: false }`
[INFO] [stdout] 53605e3364aa4d6e42f93da10e434592528276c64052708409c8144cd2e5f3a3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] e935e7649e7c8b92b774764ef7d9504605a0b7e3fac9d31584d6ba1f83724a54
[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" "e935e7649e7c8b92b774764ef7d9504605a0b7e3fac9d31584d6ba1f83724a54", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_yaml v0.8.14
[INFO] [stderr]    Compiling kvs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `kvs::KvStore`
[INFO] [stdout]  --> src/bin/kvs.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use kvs::KvStore;
[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 3.66s
[INFO] running `Command { std: "docker" "inspect" "e935e7649e7c8b92b774764ef7d9504605a0b7e3fac9d31584d6ba1f83724a54", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e935e7649e7c8b92b774764ef7d9504605a0b7e3fac9d31584d6ba1f83724a54", kill_on_drop: false }`
[INFO] [stdout] e935e7649e7c8b92b774764ef7d9504605a0b7e3fac9d31584d6ba1f83724a54
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 81edf0699b4785df18b87c9bc59b274b366746ffde7e75a5e1fe02fbd5306ba7
[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" "81edf0699b4785df18b87c9bc59b274b366746ffde7e75a5e1fe02fbd5306ba7", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `kvs::KvStore`
[INFO] [stderr]  --> src/bin/kvs.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use kvs::KvStore;
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `kvs` (bin "kvs" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/kvs-ab62e1da6a8a7223)
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/kvs-2d8e90024aff4bc1)
[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] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests kvs
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/kv.rs - kv::KvStore (line 10) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.65s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "81edf0699b4785df18b87c9bc59b274b366746ffde7e75a5e1fe02fbd5306ba7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81edf0699b4785df18b87c9bc59b274b366746ffde7e75a5e1fe02fbd5306ba7", kill_on_drop: false }`
[INFO] [stdout] 81edf0699b4785df18b87c9bc59b274b366746ffde7e75a5e1fe02fbd5306ba7