[INFO] crate alternate_buffer 0.1.0 is already in cache
[INFO] extracting crate alternate_buffer 0.1.0 into work/ex/beta-1.37-6/sources/1.36.0/reg/alternate_buffer/0.1.0
[INFO] extracting crate alternate_buffer 0.1.0 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/alternate_buffer/0.1.0
[INFO] validating manifest of alternate_buffer-0.1.0 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 alternate_buffer-0.1.0 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 alternate_buffer-0.1.0
[INFO] finished frobbing alternate_buffer-0.1.0
[INFO] frobbed toml for alternate_buffer-0.1.0 written to work/ex/beta-1.37-6/sources/1.36.0/reg/alternate_buffer/0.1.0/Cargo.toml
[INFO] started frobbing alternate_buffer-0.1.0
[INFO] finished frobbing alternate_buffer-0.1.0
[INFO] frobbed toml for alternate_buffer-0.1.0 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/alternate_buffer/0.1.0/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 alternate_buffer-0.1.0 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-6/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/alternate_buffer/0.1.0:/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] 3d3ccfd9a93a9bc7c8d0f64ece640759b90bb400beb943b4fe28e4923c6854da
[INFO] running `"docker" "start" "-a" "3d3ccfd9a93a9bc7c8d0f64ece640759b90bb400beb943b4fe28e4923c6854da"`
[INFO] [stderr]    Compiling alternate_buffer v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.95s
[INFO] running `"docker" "inspect" "3d3ccfd9a93a9bc7c8d0f64ece640759b90bb400beb943b4fe28e4923c6854da"`
[INFO] running `"docker" "rm" "-f" "3d3ccfd9a93a9bc7c8d0f64ece640759b90bb400beb943b4fe28e4923c6854da"`
[INFO] [stdout] 3d3ccfd9a93a9bc7c8d0f64ece640759b90bb400beb943b4fe28e4923c6854da
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/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/alternate_buffer/0.1.0:/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] 8e2e1fb7cff443865736207e57d91465ca9c7d8430b1e223296bb44094345e06
[INFO] running `"docker" "start" "-a" "8e2e1fb7cff443865736207e57d91465ca9c7d8430b1e223296bb44094345e06"`
[INFO] [stderr]    Compiling alternate_buffer v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.48s
[INFO] running `"docker" "inspect" "8e2e1fb7cff443865736207e57d91465ca9c7d8430b1e223296bb44094345e06"`
[INFO] running `"docker" "rm" "-f" "8e2e1fb7cff443865736207e57d91465ca9c7d8430b1e223296bb44094345e06"`
[INFO] [stdout] 8e2e1fb7cff443865736207e57d91465ca9c7d8430b1e223296bb44094345e06
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/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/alternate_buffer/0.1.0:/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] e17c32a45206a9ce9d6df9b944f77a3c4773844ef32affe9299b8f2cb6bc4db2
[INFO] running `"docker" "start" "-a" "e17c32a45206a9ce9d6df9b944f77a3c4773844ef32affe9299b8f2cb6bc4db2"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/alternate_buffer-5c98160d27752422
[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]      Running /opt/crater/target/debug/deps/alternate_buffer-03f58de0816a6774
[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 alternate_buffer
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs -  (line 5) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "e17c32a45206a9ce9d6df9b944f77a3c4773844ef32affe9299b8f2cb6bc4db2"`
[INFO] running `"docker" "rm" "-f" "e17c32a45206a9ce9d6df9b944f77a3c4773844ef32affe9299b8f2cb6bc4db2"`
[INFO] [stdout] e17c32a45206a9ce9d6df9b944f77a3c4773844ef32affe9299b8f2cb6bc4db2