[INFO] crate buffering 0.3.4-r1 is already in cache
[INFO] extracting crate buffering 0.3.4-r1 into work/ex/beta-1.38-1/sources/1.37.0/reg/buffering/0.3.4-r1
[INFO] extracting crate buffering 0.3.4-r1 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/buffering/0.3.4-r1
[INFO] validating manifest of buffering-0.3.4-r1 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 buffering-0.3.4-r1 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 buffering-0.3.4-r1
[INFO] finished frobbing buffering-0.3.4-r1
[INFO] frobbed toml for buffering-0.3.4-r1 written to work/ex/beta-1.38-1/sources/1.37.0/reg/buffering/0.3.4-r1/Cargo.toml
[INFO] started frobbing buffering-0.3.4-r1
[INFO] finished frobbing buffering-0.3.4-r1
[INFO] frobbed toml for buffering-0.3.4-r1 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/buffering/0.3.4-r1/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] [stderr]     Blocking waiting for file lock on package cache
[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 buffering-0.3.4-r1 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-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/buffering/0.3.4-r1:/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] efec49235e868cbb80410a6ad0f9adb47afb46635637678a5a878f445123b537
[INFO] running `"docker" "start" "-a" "efec49235e868cbb80410a6ad0f9adb47afb46635637678a5a878f445123b537"`
[INFO] [stderr]    Compiling buffering v0.3.4-r1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.31s
[INFO] running `"docker" "inspect" "efec49235e868cbb80410a6ad0f9adb47afb46635637678a5a878f445123b537"`
[INFO] running `"docker" "rm" "-f" "efec49235e868cbb80410a6ad0f9adb47afb46635637678a5a878f445123b537"`
[INFO] [stdout] efec49235e868cbb80410a6ad0f9adb47afb46635637678a5a878f445123b537
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/buffering/0.3.4-r1:/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] 619e639042e0d0b14bac6b345db6e60d48685ae79ade48365f410264eb8654f2
[INFO] running `"docker" "start" "-a" "619e639042e0d0b14bac6b345db6e60d48685ae79ade48365f410264eb8654f2"`
[INFO] [stderr]    Compiling buffering v0.3.4-r1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.74s
[INFO] running `"docker" "inspect" "619e639042e0d0b14bac6b345db6e60d48685ae79ade48365f410264eb8654f2"`
[INFO] running `"docker" "rm" "-f" "619e639042e0d0b14bac6b345db6e60d48685ae79ade48365f410264eb8654f2"`
[INFO] [stdout] 619e639042e0d0b14bac6b345db6e60d48685ae79ade48365f410264eb8654f2
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/buffering/0.3.4-r1:/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] a7bfe119a16a1d814eb4c20f0e33fe38fbef05ccbd60410d6115814acf322bc7
[INFO] running `"docker" "start" "-a" "a7bfe119a16a1d814eb4c20f0e33fe38fbef05ccbd60410d6115814acf322bc7"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/buffering-54802d0ca34b4a79
[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] [stderr]    Doc-tests buffering
[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" "a7bfe119a16a1d814eb4c20f0e33fe38fbef05ccbd60410d6115814acf322bc7"`
[INFO] running `"docker" "rm" "-f" "a7bfe119a16a1d814eb4c20f0e33fe38fbef05ccbd60410d6115814acf322bc7"`
[INFO] [stdout] a7bfe119a16a1d814eb4c20f0e33fe38fbef05ccbd60410d6115814acf322bc7