[INFO] crate tower-tracing 0.0.0 is already in cache
[INFO] extracting crate tower-tracing 0.0.0 into work/ex/beta-1.37-6/sources/1.36.0/reg/tower-tracing/0.0.0
[INFO] extracting crate tower-tracing 0.0.0 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/tower-tracing/0.0.0
[INFO] validating manifest of tower-tracing-0.0.0 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 tower-tracing-0.0.0 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 tower-tracing-0.0.0
[INFO] finished frobbing tower-tracing-0.0.0
[INFO] frobbed toml for tower-tracing-0.0.0 written to work/ex/beta-1.37-6/sources/1.36.0/reg/tower-tracing/0.0.0/Cargo.toml
[INFO] started frobbing tower-tracing-0.0.0
[INFO] finished frobbing tower-tracing-0.0.0
[INFO] frobbed toml for tower-tracing-0.0.0 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/tower-tracing/0.0.0/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 tower-tracing-0.0.0 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-2/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/tower-tracing/0.0.0:/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] b355295dd3bdf322f6a09f6244f5113a8c60218513b233db721f2237866a7012
[INFO] running `"docker" "start" "-a" "b355295dd3bdf322f6a09f6244f5113a8c60218513b233db721f2237866a7012"`
[INFO] [stderr]    Compiling tower-tracing v0.0.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `"docker" "inspect" "b355295dd3bdf322f6a09f6244f5113a8c60218513b233db721f2237866a7012"`
[INFO] running `"docker" "rm" "-f" "b355295dd3bdf322f6a09f6244f5113a8c60218513b233db721f2237866a7012"`
[INFO] [stdout] b355295dd3bdf322f6a09f6244f5113a8c60218513b233db721f2237866a7012
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/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/tower-tracing/0.0.0:/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] f8734b82b32cd2f3708d5e73e94d088932940c3cf973c722e381da18f832dafb
[INFO] running `"docker" "start" "-a" "f8734b82b32cd2f3708d5e73e94d088932940c3cf973c722e381da18f832dafb"`
[INFO] [stderr]    Compiling tower-tracing v0.0.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.68s
[INFO] running `"docker" "inspect" "f8734b82b32cd2f3708d5e73e94d088932940c3cf973c722e381da18f832dafb"`
[INFO] running `"docker" "rm" "-f" "f8734b82b32cd2f3708d5e73e94d088932940c3cf973c722e381da18f832dafb"`
[INFO] [stdout] f8734b82b32cd2f3708d5e73e94d088932940c3cf973c722e381da18f832dafb
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/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/tower-tracing/0.0.0:/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] e874ea5b843cb5997cfab85883c66edb59250db39a8e7f6e01df0a5c39234fba
[INFO] running `"docker" "start" "-a" "e874ea5b843cb5997cfab85883c66edb59250db39a8e7f6e01df0a5c39234fba"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/tower_tracing-0941739285a5f9f6
[INFO] [stderr]    Doc-tests tower-tracing
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[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" "e874ea5b843cb5997cfab85883c66edb59250db39a8e7f6e01df0a5c39234fba"`
[INFO] running `"docker" "rm" "-f" "e874ea5b843cb5997cfab85883c66edb59250db39a8e7f6e01df0a5c39234fba"`
[INFO] [stdout] e874ea5b843cb5997cfab85883c66edb59250db39a8e7f6e01df0a5c39234fba