[INFO] crate yarf 0.0.2 is already in cache
[INFO] extracting crate yarf 0.0.2 into work/ex/beta-1.38-1/sources/1.37.0/reg/yarf/0.0.2
[INFO] extracting crate yarf 0.0.2 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/yarf/0.0.2
[INFO] validating manifest of yarf-0.0.2 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 yarf-0.0.2 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 yarf-0.0.2
[INFO] finished frobbing yarf-0.0.2
[INFO] frobbed toml for yarf-0.0.2 written to work/ex/beta-1.38-1/sources/1.37.0/reg/yarf/0.0.2/Cargo.toml
[INFO] started frobbing yarf-0.0.2
[INFO] finished frobbing yarf-0.0.2
[INFO] frobbed toml for yarf-0.0.2 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/yarf/0.0.2/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 yarf-0.0.2 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-1/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/yarf/0.0.2:/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] 53c66c39a55f3a4045fc2970bde9a354a4935a2261a20b6814ebf1bba78c1ef6
[INFO] running `"docker" "start" "-a" "53c66c39a55f3a4045fc2970bde9a354a4935a2261a20b6814ebf1bba78c1ef6"`
[INFO] [stderr] warning: file found to be present in multiple build targets: /opt/crater/workdir/examples/hello.rs
[INFO] [stderr]    Compiling yarf-sys v0.0.2
[INFO] [stderr]    Compiling yarf v0.0.2 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:298:26
[INFO] [stderr]     |
[INFO] [stderr] 298 | pub fn yarf_main(fs: Box<FileSystem>) -> i64 {
[INFO] [stderr]     |                          ^^^^^^^^^^ help: use `dyn`: `dyn FileSystem`
[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/lib.rs:370:50
[INFO] [stderr]     |
[INFO] [stderr] 370 |     let fsptr = Box::into_raw(fstmp) as *mut Box<FileSystem> as *mut c_void;
[INFO] [stderr]     |                                                  ^^^^^^^^^^ help: use `dyn`: `dyn FileSystem`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:820:35
[INFO] [stderr]     |
[INFO] [stderr] 820 | fn get_filesystem() -> Option<Box<FileSystem>> {
[INFO] [stderr]     |                                   ^^^^^^^^^^ help: use `dyn`: `dyn FileSystem`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:826:58
[INFO] [stderr]     |
[INFO] [stderr] 826 |     let fsbox = unsafe { (*ctx).private_data as *mut Box<FileSystem> };
[INFO] [stderr]     |                                                          ^^^^^^^^^^ help: use `dyn`: `dyn FileSystem`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.58s
[INFO] running `"docker" "inspect" "53c66c39a55f3a4045fc2970bde9a354a4935a2261a20b6814ebf1bba78c1ef6"`
[INFO] running `"docker" "rm" "-f" "53c66c39a55f3a4045fc2970bde9a354a4935a2261a20b6814ebf1bba78c1ef6"`
[INFO] [stdout] 53c66c39a55f3a4045fc2970bde9a354a4935a2261a20b6814ebf1bba78c1ef6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/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/yarf/0.0.2:/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] 5682255140bf20f1cac903874c914b85e20fe32d5e788e04bbc5ec6bc38841ec
[INFO] running `"docker" "start" "-a" "5682255140bf20f1cac903874c914b85e20fe32d5e788e04bbc5ec6bc38841ec"`
[INFO] [stderr] warning: file found to be present in multiple build targets: /opt/crater/workdir/examples/hello.rs
[INFO] [stderr]    Compiling yarf v0.0.2 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:298:26
[INFO] [stderr]     |
[INFO] [stderr] 298 | pub fn yarf_main(fs: Box<FileSystem>) -> i64 {
[INFO] [stderr]     |                          ^^^^^^^^^^ help: use `dyn`: `dyn FileSystem`
[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/lib.rs:370:50
[INFO] [stderr]     |
[INFO] [stderr] 370 |     let fsptr = Box::into_raw(fstmp) as *mut Box<FileSystem> as *mut c_void;
[INFO] [stderr]     |                                                  ^^^^^^^^^^ help: use `dyn`: `dyn FileSystem`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:820:35
[INFO] [stderr]     |
[INFO] [stderr] 820 | fn get_filesystem() -> Option<Box<FileSystem>> {
[INFO] [stderr]     |                                   ^^^^^^^^^^ help: use `dyn`: `dyn FileSystem`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:826:58
[INFO] [stderr]     |
[INFO] [stderr] 826 |     let fsbox = unsafe { (*ctx).private_data as *mut Box<FileSystem> };
[INFO] [stderr]     |                                                          ^^^^^^^^^^ help: use `dyn`: `dyn FileSystem`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.12s
[INFO] running `"docker" "inspect" "5682255140bf20f1cac903874c914b85e20fe32d5e788e04bbc5ec6bc38841ec"`
[INFO] running `"docker" "rm" "-f" "5682255140bf20f1cac903874c914b85e20fe32d5e788e04bbc5ec6bc38841ec"`
[INFO] [stdout] 5682255140bf20f1cac903874c914b85e20fe32d5e788e04bbc5ec6bc38841ec
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/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/yarf/0.0.2:/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] 9d8a812a79ebb93516d4a96b040ec63dbc698775c56d5145142bba0ea7442960
[INFO] running `"docker" "start" "-a" "9d8a812a79ebb93516d4a96b040ec63dbc698775c56d5145142bba0ea7442960"`
[INFO] [stderr] warning: file found to be present in multiple build targets: /opt/crater/workdir/examples/hello.rs
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/yarf-c777145469048332
[INFO] [stderr]      Running /opt/crater/target/debug/deps/hello-6951b11d91a1ffe7
[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]    Doc-tests yarf
[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" "9d8a812a79ebb93516d4a96b040ec63dbc698775c56d5145142bba0ea7442960"`
[INFO] running `"docker" "rm" "-f" "9d8a812a79ebb93516d4a96b040ec63dbc698775c56d5145142bba0ea7442960"`
[INFO] [stdout] 9d8a812a79ebb93516d4a96b040ec63dbc698775c56d5145142bba0ea7442960