[INFO] updating cached repository ithinkthisisarc/PoTsai
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ithinkthisisarc/PoTsai
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ithinkthisisarc/PoTsai" "work/ex/beta-1.37-6/sources/1.36.0/gh/ithinkthisisarc/PoTsai"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/ithinkthisisarc/PoTsai'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ithinkthisisarc/PoTsai" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/ithinkthisisarc/PoTsai"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/ithinkthisisarc/PoTsai'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] db6d707ff3e2e8bd9d341c07486f555ef11051ab
[INFO] sha for GitHub repo ithinkthisisarc/PoTsai: db6d707ff3e2e8bd9d341c07486f555ef11051ab
[INFO] validating manifest of ithinkthisisarc/PoTsai on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of ithinkthisisarc/PoTsai on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing ithinkthisisarc/PoTsai
[INFO] finished frobbing ithinkthisisarc/PoTsai
[INFO] frobbed toml for ithinkthisisarc/PoTsai written to work/ex/beta-1.37-6/sources/1.36.0/gh/ithinkthisisarc/PoTsai/Cargo.toml
[INFO] started frobbing ithinkthisisarc/PoTsai
[INFO] finished frobbing ithinkthisisarc/PoTsai
[INFO] frobbed toml for ithinkthisisarc/PoTsai written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/ithinkthisisarc/PoTsai/Cargo.toml
[INFO] crate ithinkthisisarc/PoTsai already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing ithinkthisisarc/PoTsai against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/ithinkthisisarc/PoTsai:/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" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 412baba231bd6618e1529f70ea15347e5e510d3fa7045802a77d5d9293292b6c
[INFO] running `"docker" "start" "-a" "412baba231bd6618e1529f70ea15347e5e510d3fa7045802a77d5d9293292b6c"`
[INFO] [stderr]    Compiling libc v0.2.51
[INFO] [stderr]    Compiling scoped-tls v0.1.2
[INFO] [stderr]    Compiling try-lock v0.1.0
[INFO] [stderr]    Compiling take v0.1.0
[INFO] [stderr]    Compiling smallvec v0.2.1
[INFO] [stderr]    Compiling rand_jitter v0.1.3
[INFO] [stderr]    Compiling log v0.4.6
[INFO] [stderr]    Compiling tokio-service v0.1.0
[INFO] [stderr]    Compiling relay v0.1.1
[INFO] [stderr]    Compiling unicase v2.3.0
[INFO] [stderr]    Compiling base64 v0.9.3
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling want v0.0.4
[INFO] [stderr]    Compiling mime v0.3.13
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling iovec v0.1.2
[INFO] [stderr]    Compiling net2 v0.2.33
[INFO] [stderr]    Compiling num_cpus v1.10.0
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling time v0.1.42
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling mio v0.6.16
[INFO] [stderr]    Compiling futures-cpupool v0.1.8
[INFO] [stderr]    Compiling tokio-io v0.1.12
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling mio-uds v0.6.7
[INFO] [stderr]    Compiling parking_lot_core v0.4.0
[INFO] [stderr]    Compiling tokio-threadpool v0.1.14
[INFO] [stderr]    Compiling tokio-codec v0.1.1
[INFO] [stderr]    Compiling parking_lot v0.7.1
[INFO] [stderr]    Compiling tokio-reactor v0.1.9
[INFO] [stderr]    Compiling tokio-fs v0.1.6
[INFO] [stderr]    Compiling tokio-udp v0.1.3
[INFO] [stderr]    Compiling tokio-uds v0.2.5
[INFO] [stderr]    Compiling tokio-tcp v0.1.3
[INFO] [stderr]    Compiling tokio v0.1.19
[INFO] [stderr]    Compiling tokio-core v0.1.17
[INFO] [stderr]    Compiling tokio-proto v0.1.1
[INFO] [stderr]    Compiling hyper v0.11.27
[INFO] [stderr]    Compiling potsai v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `barrier`
[INFO] [stderr]   --> src/main.rs:92:7
[INFO] [stderr]    |
[INFO] [stderr] 92 |   let barrier = Arc::new(Barrier::new(amnt as usize));
[INFO] [stderr]    |       ^^^^^^^ help: consider prefixing with an underscore: `_barrier`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:73:7
[INFO] [stderr]    |
[INFO] [stderr] 73 |   let mut uri: String;
[INFO] [stderr]    |       ----^^^
[INFO] [stderr]    |       |
[INFO] [stderr]    |       help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 42.27s
[INFO] running `"docker" "inspect" "412baba231bd6618e1529f70ea15347e5e510d3fa7045802a77d5d9293292b6c"`
[INFO] running `"docker" "rm" "-f" "412baba231bd6618e1529f70ea15347e5e510d3fa7045802a77d5d9293292b6c"`
[INFO] [stdout] 412baba231bd6618e1529f70ea15347e5e510d3fa7045802a77d5d9293292b6c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/ithinkthisisarc/PoTsai:/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" "+beta-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 58a7ea92af6e1f43982ce554d3d355dcfc070c7982db5054528a9894a07b7c14
[INFO] running `"docker" "start" "-a" "58a7ea92af6e1f43982ce554d3d355dcfc070c7982db5054528a9894a07b7c14"`
[INFO] [stderr]    Compiling potsai v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `barrier`
[INFO] [stderr]   --> src/main.rs:92:7
[INFO] [stderr]    |
[INFO] [stderr] 92 |   let barrier = Arc::new(Barrier::new(amnt as usize));
[INFO] [stderr]    |       ^^^^^^^ help: consider prefixing with an underscore: `_barrier`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:73:7
[INFO] [stderr]    |
[INFO] [stderr] 73 |   let mut uri: String;
[INFO] [stderr]    |       ----^^^
[INFO] [stderr]    |       |
[INFO] [stderr]    |       help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.97s
[INFO] running `"docker" "inspect" "58a7ea92af6e1f43982ce554d3d355dcfc070c7982db5054528a9894a07b7c14"`
[INFO] running `"docker" "rm" "-f" "58a7ea92af6e1f43982ce554d3d355dcfc070c7982db5054528a9894a07b7c14"`
[INFO] [stdout] 58a7ea92af6e1f43982ce554d3d355dcfc070c7982db5054528a9894a07b7c14
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/ithinkthisisarc/PoTsai:/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" "+beta-2019-07-23" "test" "--frozen"`
[INFO] [stdout] f537915f6946e6d5c23fc8ab6a6c12aa0dce7213aa554754669d93e990e90813
[INFO] running `"docker" "start" "-a" "f537915f6946e6d5c23fc8ab6a6c12aa0dce7213aa554754669d93e990e90813"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.15s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/potsai-22fe200fdfb96a22
[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" "f537915f6946e6d5c23fc8ab6a6c12aa0dce7213aa554754669d93e990e90813"`
[INFO] running `"docker" "rm" "-f" "f537915f6946e6d5c23fc8ab6a6c12aa0dce7213aa554754669d93e990e90813"`
[INFO] [stdout] f537915f6946e6d5c23fc8ab6a6c12aa0dce7213aa554754669d93e990e90813