[INFO] updating cached repository Crosse/zk
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Crosse/zk
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Crosse/zk" "work/ex/beta-1.38-1/sources/1.37.0/gh/Crosse/zk"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/Crosse/zk'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Crosse/zk" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Crosse/zk"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Crosse/zk'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 4eeba44469b50df04ddf7eeb92e84e3129ee7bce
[INFO] sha for GitHub repo Crosse/zk: 4eeba44469b50df04ddf7eeb92e84e3129ee7bce
[INFO] validating manifest of Crosse/zk 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 Crosse/zk 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 Crosse/zk
[INFO] finished frobbing Crosse/zk
[INFO] frobbed toml for Crosse/zk written to work/ex/beta-1.38-1/sources/1.37.0/gh/Crosse/zk/Cargo.toml
[INFO] started frobbing Crosse/zk
[INFO] finished frobbing Crosse/zk
[INFO] frobbed toml for Crosse/zk written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Crosse/zk/Cargo.toml
[INFO] crate Crosse/zk already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing Crosse/zk 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-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/Crosse/zk:/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] 6311547cd476a4bdcafe91dfb2b5b6d5fcf311e090df64322548c20c77953f5a
[INFO] running `"docker" "start" "-a" "6311547cd476a4bdcafe91dfb2b5b6d5fcf311e090df64322548c20c77953f5a"`
[INFO] [stderr]    Compiling cfg-if v0.1.0
[INFO] [stderr]    Compiling bitflags v0.4.0
[INFO] [stderr]    Compiling slab v0.1.3
[INFO] [stderr]    Compiling bytes v0.3.0
[INFO] [stderr]    Compiling snowflake v1.2.0
[INFO] [stderr]    Compiling enum_primitive v0.1.1
[INFO] [stderr]    Compiling num-complex v0.1.35
[INFO] [stderr]    Compiling num-bigint v0.1.35
[INFO] [stderr]    Compiling thread_local v0.3.2
[INFO] [stderr]    Compiling clap v2.20.4
[INFO] [stderr]    Compiling nix v0.5.1
[INFO] [stderr]    Compiling net2 v0.2.26
[INFO] [stderr]    Compiling regex v0.2.1
[INFO] [stderr]    Compiling miow v0.1.5
[INFO] [stderr]    Compiling num-rational v0.1.35
[INFO] [stderr]    Compiling num v0.1.36
[INFO] [stderr]    Compiling mio v0.5.1
[INFO] [stderr]    Compiling env_logger v0.4.0
[INFO] [stderr]    Compiling zookeeper v0.2.2
[INFO] [stderr]    Compiling zk v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0599]: no method named `is_some` found for type `std::result::Result<std::option::Option<zookeeper::Stat>, zookeeper::ZkError>` in the current scope
[INFO] [stderr]    --> src/main.rs:165:33
[INFO] [stderr]     |
[INFO] [stderr] 165 |     if zk.exists(z_node, false).is_some() {
[INFO] [stderr]     |                                 ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: the trait bound `CliError: std::convert::From<&str>` is not satisfied
[INFO] [stderr]    --> src/main.rs:177:13
[INFO] [stderr]     |
[INFO] [stderr] 177 |         Err(From::from("zNode does not exist"))
[INFO] [stderr]     |             ^^^^^^^^^^ the trait `std::convert::From<&str>` is not implemented for `CliError`
[INFO] [stderr]     |
[INFO] [stderr]     = help: the following implementations were found:
[INFO] [stderr]               <CliError as std::convert::From<std::io::Error>>
[INFO] [stderr]               <CliError as std::convert::From<zookeeper::ZkError>>
[INFO] [stderr]     = note: required by `std::convert::From::from`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0277, E0599.
[INFO] [stderr] For more information about an error, try `rustc --explain E0277`.
[INFO] [stderr] error: Could not compile `zk`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "6311547cd476a4bdcafe91dfb2b5b6d5fcf311e090df64322548c20c77953f5a"`
[INFO] running `"docker" "rm" "-f" "6311547cd476a4bdcafe91dfb2b5b6d5fcf311e090df64322548c20c77953f5a"`
[INFO] [stdout] 6311547cd476a4bdcafe91dfb2b5b6d5fcf311e090df64322548c20c77953f5a