[INFO] fetching crate r2d2_redis_cluster 0.1.6...
[INFO] testing r2d2_redis_cluster-0.1.6 against beta-2022-02-22 for beta-1.60-1
[INFO] extracting crate r2d2_redis_cluster 0.1.6 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate r2d2_redis_cluster 0.1.6 on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate r2d2_redis_cluster 0.1.6
[INFO] finished tweaking crates.io crate r2d2_redis_cluster 0.1.6
[INFO] tweaked toml for crates.io crate r2d2_redis_cluster 0.1.6 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded redis_cluster_rs v0.1.10
[INFO] [stderr]   Downloaded redis v0.11.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", 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] 4a21502997f5d182080226f0bff9a063ebb48e4421e8c4a9ed6785309c14eefb
[INFO] running `Command { std: "docker" "start" "-a" "4a21502997f5d182080226f0bff9a063ebb48e4421e8c4a9ed6785309c14eefb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4a21502997f5d182080226f0bff9a063ebb48e4421e8c4a9ed6785309c14eefb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a21502997f5d182080226f0bff9a063ebb48e4421e8c4a9ed6785309c14eefb", kill_on_drop: false }`
[INFO] [stdout] 4a21502997f5d182080226f0bff9a063ebb48e4421e8c4a9ed6785309c14eefb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b3c6db831749b0e033ff2808fb1418ab9d2f83b54f8d60456556d060e84725fb
[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" "b3c6db831749b0e033ff2808fb1418ab9d2f83b54f8d60456556d060e84725fb", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling crc16 v0.4.0
[INFO] [stderr]    Compiling sha1_smol v1.0.0
[INFO] [stderr]    Compiling dtoa v0.4.8
[INFO] [stderr]    Compiling tokio-io v0.1.13
[INFO] [stderr]    Compiling scheduled-thread-pool v0.2.5
[INFO] [stderr]    Compiling r2d2 v0.8.9
[INFO] [stderr]    Compiling sha1 v0.6.1
[INFO] [stderr]    Compiling tokio-reactor v0.1.12
[INFO] [stderr]    Compiling tokio-codec v0.1.2
[INFO] [stderr]    Compiling tokio-tcp v0.1.4
[INFO] [stderr]    Compiling tokio-uds v0.2.7
[INFO] [stderr]    Compiling combine v3.8.1
[INFO] [stderr]    Compiling redis v0.11.0
[INFO] [stderr]    Compiling redis_cluster_rs v0.1.10
[INFO] [stderr]    Compiling r2d2_redis_cluster v0.1.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 21.02s
[INFO] running `Command { std: "docker" "inspect" "b3c6db831749b0e033ff2808fb1418ab9d2f83b54f8d60456556d060e84725fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b3c6db831749b0e033ff2808fb1418ab9d2f83b54f8d60456556d060e84725fb", kill_on_drop: false }`
[INFO] [stdout] b3c6db831749b0e033ff2808fb1418ab9d2f83b54f8d60456556d060e84725fb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e44398b34d44e88b4f5c84963557b26060b35cdde0d1ee7d134f6e97610c743d
[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" "e44398b34d44e88b4f5c84963557b26060b35cdde0d1ee7d134f6e97610c743d", kill_on_drop: false }`
[INFO] [stderr]    Compiling r2d2_redis_cluster v0.1.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.09s
[INFO] running `Command { std: "docker" "inspect" "e44398b34d44e88b4f5c84963557b26060b35cdde0d1ee7d134f6e97610c743d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e44398b34d44e88b4f5c84963557b26060b35cdde0d1ee7d134f6e97610c743d", kill_on_drop: false }`
[INFO] [stdout] e44398b34d44e88b4f5c84963557b26060b35cdde0d1ee7d134f6e97610c743d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] bf9a6fc1f6c6ce7a28085c1d8f5f81c6e269ccbcad6b301086e0d1871fcce101
[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" "bf9a6fc1f6c6ce7a28085c1d8f5f81c6e269ccbcad6b301086e0d1871fcce101", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/r2d2_redis_cluster-041b2668df2bdf4a)
[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] [stderr]    Doc-tests r2d2_redis_cluster
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 4) - compile ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 4) stdout ----
[INFO] [stdout] error[E0596]: cannot borrow `connection` as mutable, as it is not declared as mutable
[INFO] [stdout]   --> src/lib.rs:24:26
[INFO] [stdout]    |
[INFO] [stdout] 20 |             let connection = pool.get().unwrap();
[INFO] [stdout]    |                 ---------- help: consider changing this to be mutable: `mut connection`
[INFO] [stdout] 21 |             let _: u64 = connection.incr("test", 1).unwrap();
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot borrow as mutable
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0596`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 4)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.16s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "bf9a6fc1f6c6ce7a28085c1d8f5f81c6e269ccbcad6b301086e0d1871fcce101", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf9a6fc1f6c6ce7a28085c1d8f5f81c6e269ccbcad6b301086e0d1871fcce101", kill_on_drop: false }`
[INFO] [stdout] bf9a6fc1f6c6ce7a28085c1d8f5f81c6e269ccbcad6b301086e0d1871fcce101