[INFO] updating cached repository swuecho/rust_pearls
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/swuecho/rust_pearls
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/swuecho/rust_pearls" "work/ex/beta-1.38-1/sources/1.37.0/gh/swuecho/rust_pearls"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/swuecho/rust_pearls'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/swuecho/rust_pearls" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/swuecho/rust_pearls"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/swuecho/rust_pearls'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 1872708631f831c8be5ba5ced6a4e1fd6a910c82
[INFO] sha for GitHub repo swuecho/rust_pearls: 1872708631f831c8be5ba5ced6a4e1fd6a910c82
[INFO] validating manifest of swuecho/rust_pearls 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 swuecho/rust_pearls 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 swuecho/rust_pearls
[INFO] finished frobbing swuecho/rust_pearls
[INFO] frobbed toml for swuecho/rust_pearls written to work/ex/beta-1.38-1/sources/1.37.0/gh/swuecho/rust_pearls/Cargo.toml
[INFO] started frobbing swuecho/rust_pearls
[INFO] finished frobbing swuecho/rust_pearls
[INFO] frobbed toml for swuecho/rust_pearls written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/swuecho/rust_pearls/Cargo.toml
[INFO] crate swuecho/rust_pearls already has a lockfile, it will not be regenerated
[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 swuecho/rust_pearls 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-7/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/swuecho/rust_pearls:/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] fdd5b697d82a6ff9184efec54a62bdab97408a91f7597bbc9621af801c639af8
[INFO] running `"docker" "start" "-a" "fdd5b697d82a6ff9184efec54a62bdab97408a91f7597bbc9621af801c639af8"`
[INFO] [stderr]    Compiling rust_pearls v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/bin/object_type.rs:10:17
[INFO] [stderr]    |
[INFO] [stderr] 10 | fn print(a: Box<Printable>) {
[INFO] [stderr]    |                 ^^^^^^^^^ help: use `dyn`: `dyn Printable`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/bin/object_type.rs:15:30
[INFO] [stderr]    |
[INFO] [stderr] 15 |    print(Box::new(10) as Box<Printable>);
[INFO] [stderr]    |                              ^^^^^^^^^ help: use `dyn`: `dyn Printable`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.60s
[INFO] running `"docker" "inspect" "fdd5b697d82a6ff9184efec54a62bdab97408a91f7597bbc9621af801c639af8"`
[INFO] running `"docker" "rm" "-f" "fdd5b697d82a6ff9184efec54a62bdab97408a91f7597bbc9621af801c639af8"`
[INFO] [stdout] fdd5b697d82a6ff9184efec54a62bdab97408a91f7597bbc9621af801c639af8
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/swuecho/rust_pearls:/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] 1ebe9b8e17fcf39d07fa9ce0453bed8dcf0713160e1e35a0df1a60ef31b16cf9
[INFO] running `"docker" "start" "-a" "1ebe9b8e17fcf39d07fa9ce0453bed8dcf0713160e1e35a0df1a60ef31b16cf9"`
[INFO] [stderr]    Compiling rust_pearls v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/bin/object_type.rs:10:17
[INFO] [stderr]    |
[INFO] [stderr] 10 | fn print(a: Box<Printable>) {
[INFO] [stderr]    |                 ^^^^^^^^^ help: use `dyn`: `dyn Printable`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/bin/object_type.rs:15:30
[INFO] [stderr]    |
[INFO] [stderr] 15 |    print(Box::new(10) as Box<Printable>);
[INFO] [stderr]    |                              ^^^^^^^^^ help: use `dyn`: `dyn Printable`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.49s
[INFO] running `"docker" "inspect" "1ebe9b8e17fcf39d07fa9ce0453bed8dcf0713160e1e35a0df1a60ef31b16cf9"`
[INFO] running `"docker" "rm" "-f" "1ebe9b8e17fcf39d07fa9ce0453bed8dcf0713160e1e35a0df1a60ef31b16cf9"`
[INFO] [stdout] 1ebe9b8e17fcf39d07fa9ce0453bed8dcf0713160e1e35a0df1a60ef31b16cf9
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/swuecho/rust_pearls:/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] 2452f250153c53566d133631394a061a49a121ea7ca2406decf948a6c7cfd6fe
[INFO] running `"docker" "start" "-a" "2452f250153c53566d133631394a061a49a121ea7ca2406decf948a6c7cfd6fe"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/circle-517071abd20cc397
[INFO] [stderr]      Running /opt/crater/target/debug/deps/fib-ff4ddd7ac7f3accd
[INFO] [stderr]      Running /opt/crater/target/debug/deps/format_output-7bd336ae96f713d2
[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] [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] [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/fuzzbuzz-35e1bc250723168c
[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/fuzzbuzz2-4ec9a8946cdaca23
[INFO] [stderr]      Running /opt/crater/target/debug/deps/hashmap-2ca4e869f0782bbf
[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] [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/impl_for_enum_type-e9261705b2708f32
[INFO] [stderr]      Running /opt/crater/target/debug/deps/let-198bb0648df0a944
[INFO] [stderr]      Running /opt/crater/target/debug/deps/linked_list-945f5438f058ebd7
[INFO] [stderr]      Running /opt/crater/target/debug/deps/main-7f5d866983ae32c8
[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] [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] [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] [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] [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] [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] [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] [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/object_type-1bb186959c0f4c19
[INFO] [stderr]      Running /opt/crater/target/debug/deps/oop_simple-0c8dfc8701b0e642
[INFO] [stderr]      Running /opt/crater/target/debug/deps/person-20f7dbc82b8649a7
[INFO] [stderr]      Running /opt/crater/target/debug/deps/reverse-81b90b24b5f67720
[INFO] [stderr]      Running /opt/crater/target/debug/deps/scriptname-d1adf6e7f5850c73
[INFO] [stderr]      Running /opt/crater/target/debug/deps/struct_enum-3d9cc38de4ea5ec2
[INFO] [stderr]      Running /opt/crater/target/debug/deps/vec_borrow-ccfd3dded9f2c782
[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] [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] [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" "2452f250153c53566d133631394a061a49a121ea7ca2406decf948a6c7cfd6fe"`
[INFO] running `"docker" "rm" "-f" "2452f250153c53566d133631394a061a49a121ea7ca2406decf948a6c7cfd6fe"`
[INFO] [stdout] 2452f250153c53566d133631394a061a49a121ea7ca2406decf948a6c7cfd6fe