[INFO] crate r2d2_redis_cluster 0.1.5 is already in cache
[INFO] extracting crate r2d2_redis_cluster 0.1.5 into work/ex/beta-1.38-1/sources/1.37.0/reg/r2d2_redis_cluster/0.1.5
[INFO] extracting crate r2d2_redis_cluster 0.1.5 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/r2d2_redis_cluster/0.1.5
[INFO] validating manifest of r2d2_redis_cluster-0.1.5 on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of r2d2_redis_cluster-0.1.5 on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing r2d2_redis_cluster-0.1.5
[INFO] finished frobbing r2d2_redis_cluster-0.1.5
[INFO] frobbed toml for r2d2_redis_cluster-0.1.5 written to work/ex/beta-1.38-1/sources/1.37.0/reg/r2d2_redis_cluster/0.1.5/Cargo.toml
[INFO] started frobbing r2d2_redis_cluster-0.1.5
[INFO] finished frobbing r2d2_redis_cluster-0.1.5
[INFO] frobbed toml for r2d2_redis_cluster-0.1.5 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/r2d2_redis_cluster/0.1.5/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing r2d2_redis_cluster-0.1.5 against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/r2d2_redis_cluster/0.1.5:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] d3f0c3ee1b2ae42366dc7f26569c58822432eb61570db0911533b1fda7aaea65
[INFO] running `"docker" "start" "-a" "d3f0c3ee1b2ae42366dc7f26569c58822432eb61570db0911533b1fda7aaea65"`
[INFO] [stderr]    Compiling crc16 v0.4.0
[INFO] [stderr]    Compiling scheduled-thread-pool v0.2.2
[INFO] [stderr]    Compiling r2d2 v0.8.5
[INFO] [stderr]    Compiling redis_cluster_rs v0.1.9
[INFO] [stderr]    Compiling r2d2_redis_cluster v0.1.5 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.48s
[INFO] running `"docker" "inspect" "d3f0c3ee1b2ae42366dc7f26569c58822432eb61570db0911533b1fda7aaea65"`
[INFO] running `"docker" "rm" "-f" "d3f0c3ee1b2ae42366dc7f26569c58822432eb61570db0911533b1fda7aaea65"`
[INFO] [stdout] d3f0c3ee1b2ae42366dc7f26569c58822432eb61570db0911533b1fda7aaea65
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/r2d2_redis_cluster/0.1.5:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 49b756bfe7b3182e897e6c168aeaa42af736bf4b1b38dec1140ca555094cafb7
[INFO] running `"docker" "start" "-a" "49b756bfe7b3182e897e6c168aeaa42af736bf4b1b38dec1140ca555094cafb7"`
[INFO] [stderr]    Compiling r2d2_redis_cluster v0.1.5 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.73s
[INFO] running `"docker" "inspect" "49b756bfe7b3182e897e6c168aeaa42af736bf4b1b38dec1140ca555094cafb7"`
[INFO] running `"docker" "rm" "-f" "49b756bfe7b3182e897e6c168aeaa42af736bf4b1b38dec1140ca555094cafb7"`
[INFO] [stdout] 49b756bfe7b3182e897e6c168aeaa42af736bf4b1b38dec1140ca555094cafb7
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/r2d2_redis_cluster/0.1.5:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 54822854ba6cc8db3853d4062c599df8030fe0ed9e24721b4e4e5409e3ba3ebb
[INFO] running `"docker" "start" "-a" "54822854ba6cc8db3853d4062c599df8030fe0ed9e24721b4e4e5409e3ba3ebb"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/r2d2_redis_cluster-34bf6c2ac60ff8ad
[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] [stderr]    Doc-tests r2d2_redis_cluster
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs -  (line 4) ... 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
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `"docker" "inspect" "54822854ba6cc8db3853d4062c599df8030fe0ed9e24721b4e4e5409e3ba3ebb"`
[INFO] running `"docker" "rm" "-f" "54822854ba6cc8db3853d4062c599df8030fe0ed9e24721b4e4e5409e3ba3ebb"`
[INFO] [stdout] 54822854ba6cc8db3853d4062c599df8030fe0ed9e24721b4e4e5409e3ba3ebb