[INFO] updating cached repository cloudflavor/dweller
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/cloudflavor/dweller
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/cloudflavor/dweller" "work/ex/beta-1.38-1/sources/1.37.0/gh/cloudflavor/dweller"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/cloudflavor/dweller'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/cloudflavor/dweller" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/cloudflavor/dweller"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/cloudflavor/dweller'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] fa8e7c81ba73b9d96975cd830d4609846290f359
[INFO] sha for GitHub repo cloudflavor/dweller: fa8e7c81ba73b9d96975cd830d4609846290f359
[INFO] validating manifest of cloudflavor/dweller 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 cloudflavor/dweller 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 cloudflavor/dweller
[INFO] finished frobbing cloudflavor/dweller
[INFO] frobbed toml for cloudflavor/dweller written to work/ex/beta-1.38-1/sources/1.37.0/gh/cloudflavor/dweller/Cargo.toml
[INFO] started frobbing cloudflavor/dweller
[INFO] finished frobbing cloudflavor/dweller
[INFO] frobbed toml for cloudflavor/dweller written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/cloudflavor/dweller/Cargo.toml
[INFO] crate cloudflavor/dweller 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 cloudflavor/dweller 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/gh/cloudflavor/dweller:/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] 23f2fad86372a4a14dba1ae81ff441b5daec97d0bcd25c75f984a34ff3b074c8
[INFO] running `"docker" "start" "-a" "23f2fad86372a4a14dba1ae81ff441b5daec97d0bcd25c75f984a34ff3b074c8"`
[INFO] [stderr]    Compiling regex v1.0.3
[INFO] [stderr]    Compiling slog v2.4.1
[INFO] [stderr]    Compiling aho-corasick v0.6.9
[INFO] [stderr]    Compiling nom v4.0.0
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling serde_json v1.0.26
[INFO] [stderr]    Compiling toml v0.4.6
[INFO] [stderr]    Compiling serde_yaml v0.8.9
[INFO] [stderr]    Compiling syn v0.15.24
[INFO] [stderr]    Compiling chrono v0.4.5
[INFO] [stderr]    Compiling slog-json v2.3.0
[INFO] [stderr]    Compiling serde-hjson v0.8.2
[INFO] [stderr]    Compiling serde_derive v1.0.91
[INFO] [stderr]    Compiling config v0.9.3
[INFO] [stderr]    Compiling dweller v0.1.0-alpha (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `config`
[INFO] [stderr]   --> src/core.rs:22:18
[INFO] [stderr]    |
[INFO] [stderr] 22 | pub fn bootstrap(config: Configuration) {}
[INFO] [stderr]    |                  ^^^^^^ help: consider prefixing with an underscore: `_config`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Client`
[INFO] [stderr]  --> src/providers/libvirt/libvirt.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub struct Client {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `URI` should have a snake case name
[INFO] [stderr]  --> src/providers/libvirt/libvirt.rs:2:9
[INFO] [stderr]   |
[INFO] [stderr] 2 |     pub URI: String,
[INFO] [stderr]   |         ^^^ help: convert the identifier to snake case: `uri`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(non_snake_case)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 58.08s
[INFO] running `"docker" "inspect" "23f2fad86372a4a14dba1ae81ff441b5daec97d0bcd25c75f984a34ff3b074c8"`
[INFO] running `"docker" "rm" "-f" "23f2fad86372a4a14dba1ae81ff441b5daec97d0bcd25c75f984a34ff3b074c8"`
[INFO] [stdout] 23f2fad86372a4a14dba1ae81ff441b5daec97d0bcd25c75f984a34ff3b074c8
[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/gh/cloudflavor/dweller:/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] 686ec87922c9f4633729bdecab7ab3c7f51c4cf600806cb1359d0415b5e159f9
[INFO] running `"docker" "start" "-a" "686ec87922c9f4633729bdecab7ab3c7f51c4cf600806cb1359d0415b5e159f9"`
[INFO] [stderr]    Compiling dweller v0.1.0-alpha (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `config`
[INFO] [stderr]   --> src/core.rs:22:18
[INFO] [stderr]    |
[INFO] [stderr] 22 | pub fn bootstrap(config: Configuration) {}
[INFO] [stderr]    |                  ^^^^^^ help: consider prefixing with an underscore: `_config`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Client`
[INFO] [stderr]  --> src/providers/libvirt/libvirt.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub struct Client {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `URI` should have a snake case name
[INFO] [stderr]  --> src/providers/libvirt/libvirt.rs:2:9
[INFO] [stderr]   |
[INFO] [stderr] 2 |     pub URI: String,
[INFO] [stderr]   |         ^^^ help: convert the identifier to snake case: `uri`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(non_snake_case)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.16s
[INFO] running `"docker" "inspect" "686ec87922c9f4633729bdecab7ab3c7f51c4cf600806cb1359d0415b5e159f9"`
[INFO] running `"docker" "rm" "-f" "686ec87922c9f4633729bdecab7ab3c7f51c4cf600806cb1359d0415b5e159f9"`
[INFO] [stdout] 686ec87922c9f4633729bdecab7ab3c7f51c4cf600806cb1359d0415b5e159f9
[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/gh/cloudflavor/dweller:/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] 6ed873dfa068043f731cf9cde3fe5222b91ebe15197fefa6bb425aa604ee23dc
[INFO] running `"docker" "start" "-a" "6ed873dfa068043f731cf9cde3fe5222b91ebe15197fefa6bb425aa604ee23dc"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/dweller-bd34ef0158a3e422
[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] running `"docker" "inspect" "6ed873dfa068043f731cf9cde3fe5222b91ebe15197fefa6bb425aa604ee23dc"`
[INFO] running `"docker" "rm" "-f" "6ed873dfa068043f731cf9cde3fe5222b91ebe15197fefa6bb425aa604ee23dc"`
[INFO] [stdout] 6ed873dfa068043f731cf9cde3fe5222b91ebe15197fefa6bb425aa604ee23dc