[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-1.37-6/sources/1.36.0/gh/warut-vijit/verdigris"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/warut-vijit/verdigris'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/warut-vijit/verdigris" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/warut-vijit/verdigris"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/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 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of warut-vijit/verdigris 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 warut-vijit/verdigris
[INFO] finished frobbing warut-vijit/verdigris
[INFO] frobbed toml for warut-vijit/verdigris written to work/ex/beta-1.37-6/sources/1.36.0/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-1.37-6/sources/beta-2019-07-23/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" "+1.36.0" "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 warut-vijit/verdigris 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-0/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/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-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 0e934faa0485e084336637521c36f451d9347748a18094dd7f7ff4502156b996
[INFO] running `"docker" "start" "-a" "0e934faa0485e084336637521c36f451d9347748a18094dd7f7ff4502156b996"`
[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 num-traits 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 15.70s
[INFO] running `"docker" "inspect" "0e934faa0485e084336637521c36f451d9347748a18094dd7f7ff4502156b996"`
[INFO] running `"docker" "rm" "-f" "0e934faa0485e084336637521c36f451d9347748a18094dd7f7ff4502156b996"`
[INFO] [stdout] 0e934faa0485e084336637521c36f451d9347748a18094dd7f7ff4502156b996
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/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/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-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 7deab9c045d181bd7eab7fadd6ce51f86d451e2b9fe9525ef02618e45fa5311a
[INFO] running `"docker" "start" "-a" "7deab9c045d181bd7eab7fadd6ce51f86d451e2b9fe9525ef02618e45fa5311a"`
[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 0.93s
[INFO] running `"docker" "inspect" "7deab9c045d181bd7eab7fadd6ce51f86d451e2b9fe9525ef02618e45fa5311a"`
[INFO] running `"docker" "rm" "-f" "7deab9c045d181bd7eab7fadd6ce51f86d451e2b9fe9525ef02618e45fa5311a"`
[INFO] [stdout] 7deab9c045d181bd7eab7fadd6ce51f86d451e2b9fe9525ef02618e45fa5311a
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/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/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-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 4329587ef5439fb1262d127a0f9b64b27bd4e65075b0c3aee64f5e03ac43453c
[INFO] running `"docker" "start" "-a" "4329587ef5439fb1262d127a0f9b64b27bd4e65075b0c3aee64f5e03ac43453c"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/verdigris-1a1c76b8b623aaf7
[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" "4329587ef5439fb1262d127a0f9b64b27bd4e65075b0c3aee64f5e03ac43453c"`
[INFO] running `"docker" "rm" "-f" "4329587ef5439fb1262d127a0f9b64b27bd4e65075b0c3aee64f5e03ac43453c"`
[INFO] [stdout] 4329587ef5439fb1262d127a0f9b64b27bd4e65075b0c3aee64f5e03ac43453c