[INFO] crate treesum 0.1.1 is already in cache
[INFO] extracting crate treesum 0.1.1 into work/ex/beta-1.38-1/sources/1.37.0/reg/treesum/0.1.1
[INFO] extracting crate treesum 0.1.1 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/treesum/0.1.1
[INFO] validating manifest of treesum-0.1.1 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 treesum-0.1.1 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 treesum-0.1.1
[INFO] finished frobbing treesum-0.1.1
[INFO] frobbed toml for treesum-0.1.1 written to work/ex/beta-1.38-1/sources/1.37.0/reg/treesum/0.1.1/Cargo.toml
[INFO] started frobbing treesum-0.1.1
[INFO] finished frobbing treesum-0.1.1
[INFO] frobbed toml for treesum-0.1.1 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/treesum/0.1.1/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 treesum-0.1.1 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/treesum/0.1.1:/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] 79588f46004521055a799692e2fdaec9a51ed6453b66086ac86ff9194c8e3c7b
[INFO] running `"docker" "start" "-a" "79588f46004521055a799692e2fdaec9a51ed6453b66086ac86ff9194c8e3c7b"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling parallel-iterator v0.1.4
[INFO] [stderr]    Compiling treesum v0.1.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.01s
[INFO] running `"docker" "inspect" "79588f46004521055a799692e2fdaec9a51ed6453b66086ac86ff9194c8e3c7b"`
[INFO] running `"docker" "rm" "-f" "79588f46004521055a799692e2fdaec9a51ed6453b66086ac86ff9194c8e3c7b"`
[INFO] [stdout] 79588f46004521055a799692e2fdaec9a51ed6453b66086ac86ff9194c8e3c7b
[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/treesum/0.1.1:/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] ed153c1155a4c810154d5e9e1337a9f0007909871195f6eddad5db7861bfc8f2
[INFO] running `"docker" "start" "-a" "ed153c1155a4c810154d5e9e1337a9f0007909871195f6eddad5db7861bfc8f2"`
[INFO] [stderr]    Compiling treesum v0.1.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.60s
[INFO] running `"docker" "inspect" "ed153c1155a4c810154d5e9e1337a9f0007909871195f6eddad5db7861bfc8f2"`
[INFO] running `"docker" "rm" "-f" "ed153c1155a4c810154d5e9e1337a9f0007909871195f6eddad5db7861bfc8f2"`
[INFO] [stdout] ed153c1155a4c810154d5e9e1337a9f0007909871195f6eddad5db7861bfc8f2
[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/treesum/0.1.1:/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] 2cbdb72f4e85d8015fab9395352c3258ca5c1e27c83faccb3f2813561f4a8a57
[INFO] running `"docker" "start" "-a" "2cbdb72f4e85d8015fab9395352c3258ca5c1e27c83faccb3f2813561f4a8a57"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/treesum-4b7f16013f1707ae
[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" "2cbdb72f4e85d8015fab9395352c3258ca5c1e27c83faccb3f2813561f4a8a57"`
[INFO] running `"docker" "rm" "-f" "2cbdb72f4e85d8015fab9395352c3258ca5c1e27c83faccb3f2813561f4a8a57"`
[INFO] [stdout] 2cbdb72f4e85d8015fab9395352c3258ca5c1e27c83faccb3f2813561f4a8a57