[INFO] crate piston-history_tree 0.1.0 is already in cache
[INFO] extracting crate piston-history_tree 0.1.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/piston-history_tree/0.1.0
[INFO] extracting crate piston-history_tree 0.1.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/piston-history_tree/0.1.0
[INFO] validating manifest of piston-history_tree-0.1.0 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 piston-history_tree-0.1.0 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 piston-history_tree-0.1.0
[INFO] finished frobbing piston-history_tree-0.1.0
[INFO] frobbed toml for piston-history_tree-0.1.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/piston-history_tree/0.1.0/Cargo.toml
[INFO] started frobbing piston-history_tree-0.1.0
[INFO] finished frobbing piston-history_tree-0.1.0
[INFO] frobbed toml for piston-history_tree-0.1.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/piston-history_tree/0.1.0/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] [stderr]     Blocking waiting for file lock on package cache
[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] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing piston-history_tree-0.1.0 against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/piston-history_tree/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-2019-08-13" "build" "--frozen"`
[INFO] [stdout] b06540601f993cc81e6708f42fa3a288465d9c157c797e888279a4c0795e45e1
[INFO] running `"docker" "start" "-a" "b06540601f993cc81e6708f42fa3a288465d9c157c797e888279a4c0795e45e1"`
[INFO] [stderr]    Compiling piston-history_tree v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.92s
[INFO] running `"docker" "inspect" "b06540601f993cc81e6708f42fa3a288465d9c157c797e888279a4c0795e45e1"`
[INFO] running `"docker" "rm" "-f" "b06540601f993cc81e6708f42fa3a288465d9c157c797e888279a4c0795e45e1"`
[INFO] [stdout] b06540601f993cc81e6708f42fa3a288465d9c157c797e888279a4c0795e45e1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/piston-history_tree/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-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 47123173ac4a81430a94201943d54ad6881f3b81d2ee4a864547efc80b3585d0
[INFO] running `"docker" "start" "-a" "47123173ac4a81430a94201943d54ad6881f3b81d2ee4a864547efc80b3585d0"`
[INFO] [stderr]    Compiling piston-history_tree v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.08s
[INFO] running `"docker" "inspect" "47123173ac4a81430a94201943d54ad6881f3b81d2ee4a864547efc80b3585d0"`
[INFO] running `"docker" "rm" "-f" "47123173ac4a81430a94201943d54ad6881f3b81d2ee4a864547efc80b3585d0"`
[INFO] [stdout] 47123173ac4a81430a94201943d54ad6881f3b81d2ee4a864547efc80b3585d0
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/piston-history_tree/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-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 6ec40f4894f4af96bc5ecdf4e869c5d5a5a4fe89b68ec080c9119b75ba70c317
[INFO] running `"docker" "start" "-a" "6ec40f4894f4af96bc5ecdf4e869c5d5a5a4fe89b68ec080c9119b75ba70c317"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/history_tree-564fcf3ffc3aef58
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests history_tree
[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] [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" "6ec40f4894f4af96bc5ecdf4e869c5d5a5a4fe89b68ec080c9119b75ba70c317"`
[INFO] running `"docker" "rm" "-f" "6ec40f4894f4af96bc5ecdf4e869c5d5a5a4fe89b68ec080c9119b75ba70c317"`
[INFO] [stdout] 6ec40f4894f4af96bc5ecdf4e869c5d5a5a4fe89b68ec080c9119b75ba70c317