[INFO] crate serde_prefix 0.1.0 is already in cache
[INFO] extracting crate serde_prefix 0.1.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/serde_prefix/0.1.0
[INFO] extracting crate serde_prefix 0.1.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/serde_prefix/0.1.0
[INFO] validating manifest of serde_prefix-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 serde_prefix-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 serde_prefix-0.1.0
[INFO] finished frobbing serde_prefix-0.1.0
[INFO] frobbed toml for serde_prefix-0.1.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/serde_prefix/0.1.0/Cargo.toml
[INFO] started frobbing serde_prefix-0.1.0
[INFO] finished frobbing serde_prefix-0.1.0
[INFO] frobbed toml for serde_prefix-0.1.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/serde_prefix/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] 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 serde_prefix-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-0/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/serde_prefix/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] dd3516080c1e2c3adb2b99140c3831763072377fdbdccdd291ebeda47705f4ea
[INFO] running `"docker" "start" "-a" "dd3516080c1e2c3adb2b99140c3831763072377fdbdccdd291ebeda47705f4ea"`
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling serde_prefix v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.28s
[INFO] running `"docker" "inspect" "dd3516080c1e2c3adb2b99140c3831763072377fdbdccdd291ebeda47705f4ea"`
[INFO] running `"docker" "rm" "-f" "dd3516080c1e2c3adb2b99140c3831763072377fdbdccdd291ebeda47705f4ea"`
[INFO] [stdout] dd3516080c1e2c3adb2b99140c3831763072377fdbdccdd291ebeda47705f4ea
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/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/serde_prefix/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] bf9288deb07fc7081f4aeb156e7c248433cbbc66f083e7b62c3f8da6160525c8
[INFO] running `"docker" "start" "-a" "bf9288deb07fc7081f4aeb156e7c248433cbbc66f083e7b62c3f8da6160525c8"`
[INFO] [stderr]    Compiling serde_prefix v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.10s
[INFO] running `"docker" "inspect" "bf9288deb07fc7081f4aeb156e7c248433cbbc66f083e7b62c3f8da6160525c8"`
[INFO] running `"docker" "rm" "-f" "bf9288deb07fc7081f4aeb156e7c248433cbbc66f083e7b62c3f8da6160525c8"`
[INFO] [stdout] bf9288deb07fc7081f4aeb156e7c248433cbbc66f083e7b62c3f8da6160525c8
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/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/serde_prefix/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] 9edb805b087194f037b3539de2d6cc84a449d4fe38274f01bb3e3251abde756d
[INFO] running `"docker" "start" "-a" "9edb805b087194f037b3539de2d6cc84a449d4fe38274f01bb3e3251abde756d"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/serde_prefix-e0b71c87987a6c7f
[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/test_prefix-20e60c02c5cc42d5
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test test_prefix_struct ... ok
[INFO] [stdout] test test_enum ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests serde_prefix
[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" "9edb805b087194f037b3539de2d6cc84a449d4fe38274f01bb3e3251abde756d"`
[INFO] running `"docker" "rm" "-f" "9edb805b087194f037b3539de2d6cc84a449d4fe38274f01bb3e3251abde756d"`
[INFO] [stdout] 9edb805b087194f037b3539de2d6cc84a449d4fe38274f01bb3e3251abde756d