[INFO] updating cached repository warut-vijit/verdigris
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/warut-vijit/verdigris
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/warut-vijit/verdigris" "work/ex/beta-1.38-1/sources/1.37.0/gh/warut-vijit/verdigris"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/warut-vijit/verdigris'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/warut-vijit/verdigris" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/warut-vijit/verdigris"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/warut-vijit/verdigris'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 47ec6d6aaf791bd1d0a433f14709dff41f04f673
[INFO] sha for GitHub repo warut-vijit/verdigris: 47ec6d6aaf791bd1d0a433f14709dff41f04f673
[INFO] validating manifest of warut-vijit/verdigris 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 warut-vijit/verdigris 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 warut-vijit/verdigris
[INFO] finished frobbing warut-vijit/verdigris
[INFO] frobbed toml for warut-vijit/verdigris written to work/ex/beta-1.38-1/sources/1.37.0/gh/warut-vijit/verdigris/Cargo.toml
[INFO] started frobbing warut-vijit/verdigris
[INFO] finished frobbing warut-vijit/verdigris
[INFO] frobbed toml for warut-vijit/verdigris written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/warut-vijit/verdigris/Cargo.toml
[INFO] crate warut-vijit/verdigris 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 warut-vijit/verdigris against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/warut-vijit/verdigris:/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-2019-08-13" "build" "--frozen"`
[INFO] [stdout] c92c2eb02a75c7dd35e853d89b615e481ea0a2e3a4b052c68c717078b6946665
[INFO] running `"docker" "start" "-a" "c92c2eb02a75c7dd35e853d89b615e481ea0a2e3a4b052c68c717078b6946665"`
[INFO] [stderr]    Compiling ndarray v0.11.2
[INFO] [stderr]    Compiling itertools v0.7.8
[INFO] [stderr]    Compiling num-complex v0.1.43
[INFO] [stderr]    Compiling threadpool v1.7.1
[INFO] [stderr]    Compiling verdigris v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::sync::mpsc::channel`
[INFO] [stderr]  --> src/main.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::sync::mpsc::channel;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.13s
[INFO] running `"docker" "inspect" "c92c2eb02a75c7dd35e853d89b615e481ea0a2e3a4b052c68c717078b6946665"`
[INFO] running `"docker" "rm" "-f" "c92c2eb02a75c7dd35e853d89b615e481ea0a2e3a4b052c68c717078b6946665"`
[INFO] [stdout] c92c2eb02a75c7dd35e853d89b615e481ea0a2e3a4b052c68c717078b6946665
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/warut-vijit/verdigris:/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-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 7ee7204f7c9ede6ca864ec3e329c7412489316a4c80a7c7025ae9eef61401d01
[INFO] running `"docker" "start" "-a" "7ee7204f7c9ede6ca864ec3e329c7412489316a4c80a7c7025ae9eef61401d01"`
[INFO] [stderr]    Compiling verdigris v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::sync::mpsc::channel`
[INFO] [stderr]  --> src/main.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::sync::mpsc::channel;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.87s
[INFO] running `"docker" "inspect" "7ee7204f7c9ede6ca864ec3e329c7412489316a4c80a7c7025ae9eef61401d01"`
[INFO] running `"docker" "rm" "-f" "7ee7204f7c9ede6ca864ec3e329c7412489316a4c80a7c7025ae9eef61401d01"`
[INFO] [stdout] 7ee7204f7c9ede6ca864ec3e329c7412489316a4c80a7c7025ae9eef61401d01
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/warut-vijit/verdigris:/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-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 366b537cde7a04c7ab2420f7de8bc1a4f086c32d9c16a6ada1f773975d7cd6fb
[INFO] running `"docker" "start" "-a" "366b537cde7a04c7ab2420f7de8bc1a4f086c32d9c16a6ada1f773975d7cd6fb"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/verdigris-9f1be79d359b9688
[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" "366b537cde7a04c7ab2420f7de8bc1a4f086c32d9c16a6ada1f773975d7cd6fb"`
[INFO] running `"docker" "rm" "-f" "366b537cde7a04c7ab2420f7de8bc1a4f086c32d9c16a6ada1f773975d7cd6fb"`
[INFO] [stdout] 366b537cde7a04c7ab2420f7de8bc1a4f086c32d9c16a6ada1f773975d7cd6fb