[INFO] crate NULL 1.0.1 is already in cache
[INFO] extracting crate NULL 1.0.1 into work/ex/beta-1.37-6/sources/1.36.0/reg/NULL/1.0.1
[INFO] extracting crate NULL 1.0.1 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/NULL/1.0.1
[INFO] validating manifest of NULL-1.0.1 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 NULL-1.0.1 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 NULL-1.0.1
[INFO] finished frobbing NULL-1.0.1
[INFO] frobbed toml for NULL-1.0.1 written to work/ex/beta-1.37-6/sources/1.36.0/reg/NULL/1.0.1/Cargo.toml
[INFO] started frobbing NULL-1.0.1
[INFO] finished frobbing NULL-1.0.1
[INFO] frobbed toml for NULL-1.0.1 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/NULL/1.0.1/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 NULL-1.0.1 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-1/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/NULL/1.0.1:/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] be880750a43fe918d7e2fd59e0f196bb5472fe8d07a775a5e869a9ce8b7b7f09
[INFO] running `"docker" "start" "-a" "be880750a43fe918d7e2fd59e0f196bb5472fe8d07a775a5e869a9ce8b7b7f09"`
[INFO] [stderr]    Compiling hamming v0.1.3
[INFO] [stderr]    Compiling primal-estimate v0.2.1
[INFO] [stderr]    Compiling num-bigint v0.1.44
[INFO] [stderr]    Compiling primal-bit v0.2.4
[INFO] [stderr]    Compiling primal-sieve v0.2.9
[INFO] [stderr]    Compiling NULL v1.0.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.56s
[INFO] running `"docker" "inspect" "be880750a43fe918d7e2fd59e0f196bb5472fe8d07a775a5e869a9ce8b7b7f09"`
[INFO] running `"docker" "rm" "-f" "be880750a43fe918d7e2fd59e0f196bb5472fe8d07a775a5e869a9ce8b7b7f09"`
[INFO] [stdout] be880750a43fe918d7e2fd59e0f196bb5472fe8d07a775a5e869a9ce8b7b7f09
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/NULL/1.0.1:/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] f0af17c8e2ac184949ba1ac99c1dfa15bdee399a4b8ad1c1016a6585b89df5ac
[INFO] running `"docker" "start" "-a" "f0af17c8e2ac184949ba1ac99c1dfa15bdee399a4b8ad1c1016a6585b89df5ac"`
[INFO] [stderr]    Compiling NULL v1.0.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.80s
[INFO] running `"docker" "inspect" "f0af17c8e2ac184949ba1ac99c1dfa15bdee399a4b8ad1c1016a6585b89df5ac"`
[INFO] running `"docker" "rm" "-f" "f0af17c8e2ac184949ba1ac99c1dfa15bdee399a4b8ad1c1016a6585b89df5ac"`
[INFO] [stdout] f0af17c8e2ac184949ba1ac99c1dfa15bdee399a4b8ad1c1016a6585b89df5ac
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/NULL/1.0.1:/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] 7034186f8ff992290a193dc36f05ca80df275ea44141c0446ca94561ef01e61e
[INFO] running `"docker" "start" "-a" "7034186f8ff992290a193dc36f05ca80df275ea44141c0446ca94561ef01e61e"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/NULL-c4986bffac50bcec
[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" "7034186f8ff992290a193dc36f05ca80df275ea44141c0446ca94561ef01e61e"`
[INFO] running `"docker" "rm" "-f" "7034186f8ff992290a193dc36f05ca80df275ea44141c0446ca94561ef01e61e"`
[INFO] [stdout] 7034186f8ff992290a193dc36f05ca80df275ea44141c0446ca94561ef01e61e