[INFO] updating cached repository souvik1997/blkview
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/souvik1997/blkview
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/souvik1997/blkview" "work/ex/beta-1.38-1/sources/1.37.0/gh/souvik1997/blkview"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/souvik1997/blkview'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/souvik1997/blkview" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/souvik1997/blkview"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/souvik1997/blkview'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] daeabbf51f0e08e2cb4c6818f235da511d45f9c2
[INFO] sha for GitHub repo souvik1997/blkview: daeabbf51f0e08e2cb4c6818f235da511d45f9c2
[INFO] validating manifest of souvik1997/blkview 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 souvik1997/blkview 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 souvik1997/blkview
[INFO] finished frobbing souvik1997/blkview
[INFO] frobbed toml for souvik1997/blkview written to work/ex/beta-1.38-1/sources/1.37.0/gh/souvik1997/blkview/Cargo.toml
[INFO] started frobbing souvik1997/blkview
[INFO] finished frobbing souvik1997/blkview
[INFO] frobbed toml for souvik1997/blkview written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/souvik1997/blkview/Cargo.toml
[INFO] crate souvik1997/blkview 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing souvik1997/blkview 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-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/souvik1997/blkview:/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] f301864c23ee6a5bf35711fe28403cda215e110146aedb6d82e199cd7aee2a5d
[INFO] running `"docker" "start" "-a" "f301864c23ee6a5bf35711fe28403cda215e110146aedb6d82e199cd7aee2a5d"`
[INFO] [stderr]    Compiling deflate v0.7.18
[INFO] [stderr]    Compiling num-derive v0.2.0
[INFO] [stderr]    Compiling palette v0.3.0
[INFO] [stderr]    Compiling jpeg-decoder v0.1.14
[INFO] [stderr]    Compiling png v0.11.0
[INFO] [stderr]    Compiling image v0.18.0
[INFO] [stderr]    Compiling blkview v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: the item `num` is imported redundantly
[INFO] [stderr]   --> src/trace.rs:87:13
[INFO] [stderr]    |
[INFO] [stderr] 87 |         use super::num;
[INFO] [stderr]    |             ^^^^^^^^^^
[INFO] [stderr]    | 
[INFO] [stderr]   ::: src/main.rs:4:1
[INFO] [stderr]    |
[INFO] [stderr] 4  | extern crate num;
[INFO] [stderr]    | ----------------- the item `num` is already imported here
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 25.71s
[INFO] running `"docker" "inspect" "f301864c23ee6a5bf35711fe28403cda215e110146aedb6d82e199cd7aee2a5d"`
[INFO] running `"docker" "rm" "-f" "f301864c23ee6a5bf35711fe28403cda215e110146aedb6d82e199cd7aee2a5d"`
[INFO] [stdout] f301864c23ee6a5bf35711fe28403cda215e110146aedb6d82e199cd7aee2a5d
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/souvik1997/blkview:/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] 799ad145cc1e8d5fc6dcea5344a809cbc66dc99183f461ac458e738bed3d0989
[INFO] running `"docker" "start" "-a" "799ad145cc1e8d5fc6dcea5344a809cbc66dc99183f461ac458e738bed3d0989"`
[INFO] [stderr]    Compiling blkview v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: the item `num` is imported redundantly
[INFO] [stderr]   --> src/trace.rs:87:13
[INFO] [stderr]    |
[INFO] [stderr] 87 |         use super::num;
[INFO] [stderr]    |             ^^^^^^^^^^
[INFO] [stderr]    | 
[INFO] [stderr]   ::: src/main.rs:4:1
[INFO] [stderr]    |
[INFO] [stderr] 4  | extern crate num;
[INFO] [stderr]    | ----------------- the item `num` is already imported here
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.26s
[INFO] running `"docker" "inspect" "799ad145cc1e8d5fc6dcea5344a809cbc66dc99183f461ac458e738bed3d0989"`
[INFO] running `"docker" "rm" "-f" "799ad145cc1e8d5fc6dcea5344a809cbc66dc99183f461ac458e738bed3d0989"`
[INFO] [stdout] 799ad145cc1e8d5fc6dcea5344a809cbc66dc99183f461ac458e738bed3d0989
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/souvik1997/blkview:/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] 5cd18cba09af1e6cfe519c8d8a1aa76cd13977a51508cbca826bb8eee070b44d
[INFO] running `"docker" "start" "-a" "5cd18cba09af1e6cfe519c8d8a1aa76cd13977a51508cbca826bb8eee070b44d"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/blkview-62335b1156628148
[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" "5cd18cba09af1e6cfe519c8d8a1aa76cd13977a51508cbca826bb8eee070b44d"`
[INFO] running `"docker" "rm" "-f" "5cd18cba09af1e6cfe519c8d8a1aa76cd13977a51508cbca826bb8eee070b44d"`
[INFO] [stdout] 5cd18cba09af1e6cfe519c8d8a1aa76cd13977a51508cbca826bb8eee070b44d