[INFO] crate corepack 0.4.0 is already in cache
[INFO] extracting crate corepack 0.4.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/corepack/0.4.0
[INFO] extracting crate corepack 0.4.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/corepack/0.4.0
[INFO] validating manifest of corepack-0.4.0 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 corepack-0.4.0 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 corepack-0.4.0
[INFO] finished frobbing corepack-0.4.0
[INFO] frobbed toml for corepack-0.4.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/corepack/0.4.0/Cargo.toml
[INFO] started frobbing corepack-0.4.0
[INFO] finished frobbing corepack-0.4.0
[INFO] frobbed toml for corepack-0.4.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/corepack/0.4.0/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] testing corepack-0.4.0 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/corepack/0.4.0:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] f06441ede64cee831dffdd624f1dfe3de199098ded5c42a918a277908dd94686
[INFO] running `"docker" "start" "-a" "f06441ede64cee831dffdd624f1dfe3de199098ded5c42a918a277908dd94686"`
[INFO] [stderr]    Compiling serde v1.0.99
[INFO] [stderr]    Compiling byteorder v1.2.7
[INFO] [stderr]    Compiling corepack v0.4.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/error.rs:71:32
[INFO] [stderr]    |
[INFO] [stderr] 71 |     fn cause(&self) -> Option<&::std::error::Error> {
[INFO] [stderr]    |                                ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn (::std::error::Error)`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.97s
[INFO] running `"docker" "inspect" "f06441ede64cee831dffdd624f1dfe3de199098ded5c42a918a277908dd94686"`
[INFO] running `"docker" "rm" "-f" "f06441ede64cee831dffdd624f1dfe3de199098ded5c42a918a277908dd94686"`
[INFO] [stdout] f06441ede64cee831dffdd624f1dfe3de199098ded5c42a918a277908dd94686
[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/corepack/0.4.0:/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] f011979963fbca97c06b224b855d40f234ab65a7e267d8edb9c1e8a1e9c524c6
[INFO] running `"docker" "start" "-a" "f011979963fbca97c06b224b855d40f234ab65a7e267d8edb9c1e8a1e9c524c6"`
[INFO] [stderr]    Compiling corepack v0.4.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/error.rs:71:32
[INFO] [stderr]    |
[INFO] [stderr] 71 |     fn cause(&self) -> Option<&::std::error::Error> {
[INFO] [stderr]    |                                ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn (::std::error::Error)`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.98s
[INFO] running `"docker" "inspect" "f011979963fbca97c06b224b855d40f234ab65a7e267d8edb9c1e8a1e9c524c6"`
[INFO] running `"docker" "rm" "-f" "f011979963fbca97c06b224b855d40f234ab65a7e267d8edb9c1e8a1e9c524c6"`
[INFO] [stdout] f011979963fbca97c06b224b855d40f234ab65a7e267d8edb9c1e8a1e9c524c6
[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/corepack/0.4.0:/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] c699a48533f614de6a109116dc7eaa6dc90f310bf1ffa8d88465580db4bc25bf
[INFO] running `"docker" "start" "-a" "c699a48533f614de6a109116dc7eaa6dc90f310bf1ffa8d88465580db4bc25bf"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/corepack-9c2fc3420a2ec9fb
[INFO] [stdout] 
[INFO] [stdout] running 30 tests
[INFO] [stdout] test de::test::str8_test ... ok
[INFO] [stdout] test de::test::positive_fixint_test ... ok
[INFO] [stdout] test de::test::uint8_test ... ok
[INFO] [stdout] test de::test::fixmap_test ... ok
[INFO] [stdout] test de::test::negative_fixint_test ... ok
[INFO] [stdout] test de::test::fixstr_test ... ok
[INFO] [stdout] test ser::test::array16_test ... ok
[INFO] [stdout] test de::test::fixarr_test ... ok
[INFO] [stdout] test ser::test::str8_test ... ok
[INFO] [stdout] test ser::test::uint8_test ... ok
[INFO] [stdout] test test::test_byte_array ... ok
[INFO] [stdout] test test::test_char ... ok
[INFO] [stdout] test test::test_enum ... ok
[INFO] [stdout] test test::test_enum_newtype ... ok
[INFO] [stdout] test test::test_enum_struct ... ok
[INFO] [stdout] test ser::test::fixstr_test ... ok
[INFO] [stdout] test ser::test::fixmap_test ... ok
[INFO] [stdout] test ser::test::fixarr_test ... ok
[INFO] [stdout] test test::test_float32 ... ok
[INFO] [stdout] test test::test_option ... ok
[INFO] [stdout] test test::test_option_none ... ok
[INFO] [stdout] test test::test_str ... ok
[INFO] [stdout] test test::test_unit_option ... ok
[INFO] [stdout] test de::test::array16_test ... ok
[INFO] [stdout] test de::test::f64_test ... ok
[INFO] [stdout] test test::test_enum_tuple ... ok
[INFO] [stdout] test ser::test::positive_fixint_test ... ok
[INFO] [stderr]    Doc-tests corepack
[INFO] [stdout] test ser::test::negative_fixint_test ... ok
[INFO] [stdout] test test::test_false ... ok
[INFO] [stdout] test test::test_float ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 30 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" "c699a48533f614de6a109116dc7eaa6dc90f310bf1ffa8d88465580db4bc25bf"`
[INFO] running `"docker" "rm" "-f" "c699a48533f614de6a109116dc7eaa6dc90f310bf1ffa8d88465580db4bc25bf"`
[INFO] [stdout] c699a48533f614de6a109116dc7eaa6dc90f310bf1ffa8d88465580db4bc25bf