[INFO] crate NULL 1.0.1 is already in cache
[INFO] extracting crate NULL 1.0.1 into work/ex/beta-1.38-1/sources/1.37.0/reg/NULL/1.0.1
[INFO] extracting crate NULL 1.0.1 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/NULL/1.0.1
[INFO] validating manifest of NULL-1.0.1 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 NULL-1.0.1 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 NULL-1.0.1
[INFO] finished frobbing NULL-1.0.1
[INFO] frobbed toml for NULL-1.0.1 written to work/ex/beta-1.38-1/sources/1.37.0/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-1.38-1/sources/beta-2019-08-13/reg/NULL/1.0.1/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 NULL-1.0.1 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-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] f9b2d2eb78c827df2e1598a8f87eacbffc69660d3cc1ff552ecf5cc22a716201
[INFO] running `"docker" "start" "-a" "f9b2d2eb78c827df2e1598a8f87eacbffc69660d3cc1ff552ecf5cc22a716201"`
[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 5.44s
[INFO] running `"docker" "inspect" "f9b2d2eb78c827df2e1598a8f87eacbffc69660d3cc1ff552ecf5cc22a716201"`
[INFO] running `"docker" "rm" "-f" "f9b2d2eb78c827df2e1598a8f87eacbffc69660d3cc1ff552ecf5cc22a716201"`
[INFO] [stdout] f9b2d2eb78c827df2e1598a8f87eacbffc69660d3cc1ff552ecf5cc22a716201
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 002873cae965914700355f0b1575a170392e2b6ae7dbd91a5fbb347fea08f89a
[INFO] running `"docker" "start" "-a" "002873cae965914700355f0b1575a170392e2b6ae7dbd91a5fbb347fea08f89a"`
[INFO] [stderr]    Compiling NULL v1.0.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.54s
[INFO] running `"docker" "inspect" "002873cae965914700355f0b1575a170392e2b6ae7dbd91a5fbb347fea08f89a"`
[INFO] running `"docker" "rm" "-f" "002873cae965914700355f0b1575a170392e2b6ae7dbd91a5fbb347fea08f89a"`
[INFO] [stdout] 002873cae965914700355f0b1575a170392e2b6ae7dbd91a5fbb347fea08f89a
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] df47d8e6aeb72b5ca5cfc420cd3c34ab34491ce011c3924a567979d4f296a90e
[INFO] running `"docker" "start" "-a" "df47d8e6aeb72b5ca5cfc420cd3c34ab34491ce011c3924a567979d4f296a90e"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/NULL-44b28c235978df66
[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" "df47d8e6aeb72b5ca5cfc420cd3c34ab34491ce011c3924a567979d4f296a90e"`
[INFO] running `"docker" "rm" "-f" "df47d8e6aeb72b5ca5cfc420cd3c34ab34491ce011c3924a567979d4f296a90e"`
[INFO] [stdout] df47d8e6aeb72b5ca5cfc420cd3c34ab34491ce011c3924a567979d4f296a90e