[INFO] updating cached repository bennofs/nix-index [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/bennofs/nix-index [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/bennofs/nix-index" "work/ex/beta-1.38-1/sources/1.37.0/gh/bennofs/nix-index"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/bennofs/nix-index'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/bennofs/nix-index" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/bennofs/nix-index"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/bennofs/nix-index'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] fbe7136fa853f0036d71c4278a8bfb42caa829d4 [INFO] sha for GitHub repo bennofs/nix-index: fbe7136fa853f0036d71c4278a8bfb42caa829d4 [INFO] validating manifest of bennofs/nix-index 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 bennofs/nix-index 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 bennofs/nix-index [INFO] removed 1 missing examples [INFO] finished frobbing bennofs/nix-index [INFO] frobbed toml for bennofs/nix-index written to work/ex/beta-1.38-1/sources/1.37.0/gh/bennofs/nix-index/Cargo.toml [INFO] started frobbing bennofs/nix-index [INFO] removed 1 missing examples [INFO] finished frobbing bennofs/nix-index [INFO] frobbed toml for bennofs/nix-index written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/bennofs/nix-index/Cargo.toml [INFO] crate bennofs/nix-index 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 bennofs/nix-index 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-3/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/bennofs/nix-index:/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] 48e59ea2e261893e77048e0eb85a41c8d9fa47d38bf3ba5e462ab2f341f700eb [INFO] running `"docker" "start" "-a" "48e59ea2e261893e77048e0eb85a41c8d9fa47d38bf3ba5e462ab2f341f700eb"` [INFO] [stderr] warning: An explicit [[example]] section is specified in Cargo.toml which currently [INFO] [stderr] disables Cargo from automatically inferring other example targets. [INFO] [stderr] This inference behavior will change in the Rust 2018 edition and the following [INFO] [stderr] files will be included as a example target: [INFO] [stderr] [INFO] [stderr] * /opt/crater/workdir/examples/nix-index-debug.rs [INFO] [stderr] [INFO] [stderr] This is likely to break cargo build or cargo test as these files may not be [INFO] [stderr] ready to be compiled as a example target today. You can future-proof yourself [INFO] [stderr] and disable this warning by adding `autoexamples = false` to your [package] [INFO] [stderr] section. You may also move the files to a location where Cargo would not [INFO] [stderr] automatically infer them to be a target, such as in subfolders. [INFO] [stderr] [INFO] [stderr] For more information on this warning you can consult [INFO] [stderr] https://github.com/rust-lang/cargo/issues/5330 [INFO] [stderr] warning: version requirement `0.4.17+zstd.1.3.3` for dependency `zstd` includes semver metadata which will be ignored, removing the metadata is recommended to avoid confusion [INFO] [stderr] Compiling base64 v0.5.2 [INFO] [stderr] Compiling stderr v0.8.0 [INFO] [stderr] Compiling lzma-sys v0.1.10 [INFO] [stderr] Compiling memchr v2.1.0 [INFO] [stderr] Compiling serde_bytes v0.10.4 [INFO] [stderr] Compiling bincode v0.9.2 [INFO] [stderr] Compiling mio-uds v0.6.7 [INFO] [stderr] Compiling crossbeam-epoch v0.5.2 [INFO] [stderr] Compiling tokio-codec v0.1.0 [INFO] [stderr] Compiling mime v0.3.9 [INFO] [stderr] Compiling parking_lot_core v0.3.1 [INFO] [stderr] Compiling blob v0.2.0 [INFO] [stderr] Compiling error-chain v0.12.0 [INFO] [stderr] Compiling crossbeam-deque v0.6.1 [INFO] [stderr] Compiling aho-corasick v0.6.8 [INFO] [stderr] Compiling serde_derive v1.0.79 [INFO] [stderr] Compiling zstd-sys v1.4.5+zstd.1.3.6 [INFO] [stderr] Compiling parking_lot v0.6.4 [INFO] [stderr] Compiling tokio-threadpool v0.1.6 [INFO] [stderr] Compiling xz2 v0.1.5 [INFO] [stderr] Compiling regex v1.0.5 [INFO] [stderr] Compiling tokio-reactor v0.1.5 [INFO] [stderr] Compiling tokio-uds v0.2.1 [INFO] [stderr] Compiling tokio-tcp v0.1.1 [INFO] [stderr] Compiling tokio-udp v0.1.2 [INFO] [stderr] Compiling tokio-fs v0.1.3 [INFO] [stderr] Compiling tokio v0.1.8 [INFO] [stderr] Compiling grep v0.1.9 [INFO] [stderr] Compiling tokio-core v0.1.17 [INFO] [stderr] Compiling tokio-proto v0.1.1 [INFO] [stderr] Compiling tokio-retry v0.1.1 [INFO] [stderr] Compiling hyper v0.11.27 [INFO] [stderr] Compiling zstd-safe v1.4.5+zstd.1.3.6 [INFO] [stderr] Compiling zstd v0.4.20+zstd.1.3.6 [INFO] [stderr] Compiling nix-index v0.1.2 (/opt/crater/workdir) [INFO] [stderr] warning: the item `FileNode` is imported redundantly [INFO] [stderr] --> src/files.rs:105:20 [INFO] [stderr] | [INFO] [stderr] 25 | / pub enum FileNode { [INFO] [stderr] 26 | | /// A regular file. This is the normal kind of file which is [INFO] [stderr] 27 | | /// neither a directory not a symlink. [INFO] [stderr] 28 | | Regular { [INFO] [stderr] ... | [INFO] [stderr] 49 | | }, [INFO] [stderr] 50 | | } [INFO] [stderr] | |_- the item `FileNode` is already defined here [INFO] [stderr] ... [INFO] [stderr] 105 | use self::{FileNode, FileType}; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: the item `FileType` is imported redundantly [INFO] [stderr] --> src/files.rs:105:30 [INFO] [stderr] | [INFO] [stderr] 61 | / pub enum FileType { [INFO] [stderr] 62 | | Regular { executable: bool }, [INFO] [stderr] 63 | | Directory, [INFO] [stderr] 64 | | Symlink, [INFO] [stderr] 65 | | } [INFO] [stderr] | |_- the item `FileType` is already defined here [INFO] [stderr] ... [INFO] [stderr] 105 | use self::{FileNode, FileType}; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/hydra.rs:114:29 [INFO] [stderr] | [INFO] [stderr] 114 | type BoxFuture<'a, I> = Box + 'a>; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future + 'a` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/hydra.rs:344:14 [INFO] [stderr] | [INFO] [stderr] 344 | ) -> Box, Error = Error> + 'a> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future, Error = Error> + 'a` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/workset.rs:141:29 [INFO] [stderr] | [INFO] [stderr] 141 | pub type WorkSetWatch = Box; [INFO] [stderr] | ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn WorkSetObserver` [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting [INFO] [stderr] --> src/hydra.rs:34:1 [INFO] [stderr] | [INFO] [stderr] 34 | / error_chain! { [INFO] [stderr] 35 | | errors { [INFO] [stderr] 36 | | Http(url: String, code: StatusCode) { [INFO] [stderr] 37 | | description("http status code error") [INFO] [stderr] ... | [INFO] [stderr] 73 | | } [INFO] [stderr] 74 | | } [INFO] [stderr] | |_^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(deprecated)]` on by default [INFO] [stderr] = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting [INFO] [stderr] --> src/frcode.rs:60:1 [INFO] [stderr] | [INFO] [stderr] 60 | / error_chain!{ [INFO] [stderr] 61 | | foreign_links { [INFO] [stderr] 62 | | Io(io::Error); [INFO] [stderr] 63 | | } [INFO] [stderr] ... | [INFO] [stderr] 82 | | } [INFO] [stderr] 83 | | } [INFO] [stderr] | |_^ [INFO] [stderr] | [INFO] [stderr] = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting [INFO] [stderr] --> src/database.rs:87:1 [INFO] [stderr] | [INFO] [stderr] 87 | / error_chain! { [INFO] [stderr] 88 | | errors { [INFO] [stderr] 89 | | UnsupportedFileType(found: Vec) { [INFO] [stderr] 90 | | description("unsupported file type") [INFO] [stderr] ... | [INFO] [stderr] 118 | | } [INFO] [stderr] 119 | | } [INFO] [stderr] | |_^ [INFO] [stderr] | [INFO] [stderr] = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/bin/nix-index.rs:87:34 [INFO] [stderr] | [INFO] [stderr] 87 | type FileListingStream<'a> = Box, Error = Error> + 'a>; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Stream, Error = Error> + 'a` [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1m 50s [INFO] running `"docker" "inspect" "48e59ea2e261893e77048e0eb85a41c8d9fa47d38bf3ba5e462ab2f341f700eb"` [INFO] running `"docker" "rm" "-f" "48e59ea2e261893e77048e0eb85a41c8d9fa47d38bf3ba5e462ab2f341f700eb"` [INFO] [stdout] 48e59ea2e261893e77048e0eb85a41c8d9fa47d38bf3ba5e462ab2f341f700eb [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/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/bennofs/nix-index:/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] cd885bb02194d57af372e3cc849f252ff6744925ea011b7a97d835a5c70a97c8 [INFO] running `"docker" "start" "-a" "cd885bb02194d57af372e3cc849f252ff6744925ea011b7a97d835a5c70a97c8"` [INFO] [stderr] warning: An explicit [[example]] section is specified in Cargo.toml which currently [INFO] [stderr] disables Cargo from automatically inferring other example targets. [INFO] [stderr] This inference behavior will change in the Rust 2018 edition and the following [INFO] [stderr] files will be included as a example target: [INFO] [stderr] [INFO] [stderr] * /opt/crater/workdir/examples/nix-index-debug.rs [INFO] [stderr] [INFO] [stderr] This is likely to break cargo build or cargo test as these files may not be [INFO] [stderr] ready to be compiled as a example target today. You can future-proof yourself [INFO] [stderr] and disable this warning by adding `autoexamples = false` to your [package] [INFO] [stderr] section. You may also move the files to a location where Cargo would not [INFO] [stderr] automatically infer them to be a target, such as in subfolders. [INFO] [stderr] [INFO] [stderr] For more information on this warning you can consult [INFO] [stderr] https://github.com/rust-lang/cargo/issues/5330 [INFO] [stderr] warning: version requirement `0.4.17+zstd.1.3.3` for dependency `zstd` includes semver metadata which will be ignored, removing the metadata is recommended to avoid confusion [INFO] [stderr] Compiling nix-index v0.1.2 (/opt/crater/workdir) [INFO] [stderr] warning: the item `FileNode` is imported redundantly [INFO] [stderr] --> src/files.rs:105:20 [INFO] [stderr] | [INFO] [stderr] 25 | / pub enum FileNode { [INFO] [stderr] 26 | | /// A regular file. This is the normal kind of file which is [INFO] [stderr] 27 | | /// neither a directory not a symlink. [INFO] [stderr] 28 | | Regular { [INFO] [stderr] ... | [INFO] [stderr] 49 | | }, [INFO] [stderr] 50 | | } [INFO] [stderr] | |_- the item `FileNode` is already defined here [INFO] [stderr] ... [INFO] [stderr] 105 | use self::{FileNode, FileType}; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: the item `FileType` is imported redundantly [INFO] [stderr] --> src/files.rs:105:30 [INFO] [stderr] | [INFO] [stderr] 61 | / pub enum FileType { [INFO] [stderr] 62 | | Regular { executable: bool }, [INFO] [stderr] 63 | | Directory, [INFO] [stderr] 64 | | Symlink, [INFO] [stderr] 65 | | } [INFO] [stderr] | |_- the item `FileType` is already defined here [INFO] [stderr] ... [INFO] [stderr] 105 | use self::{FileNode, FileType}; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/hydra.rs:114:29 [INFO] [stderr] | [INFO] [stderr] 114 | type BoxFuture<'a, I> = Box + 'a>; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future + 'a` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/hydra.rs:344:14 [INFO] [stderr] | [INFO] [stderr] 344 | ) -> Box, Error = Error> + 'a> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future, Error = Error> + 'a` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/workset.rs:141:29 [INFO] [stderr] | [INFO] [stderr] 141 | pub type WorkSetWatch = Box; [INFO] [stderr] | ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn WorkSetObserver` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/bin/nix-index.rs:87:34 [INFO] [stderr] | [INFO] [stderr] 87 | type FileListingStream<'a> = Box, Error = Error> + 'a>; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Stream, Error = Error> + 'a` [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting [INFO] [stderr] --> src/hydra.rs:34:1 [INFO] [stderr] | [INFO] [stderr] 34 | / error_chain! { [INFO] [stderr] 35 | | errors { [INFO] [stderr] 36 | | Http(url: String, code: StatusCode) { [INFO] [stderr] 37 | | description("http status code error") [INFO] [stderr] ... | [INFO] [stderr] 73 | | } [INFO] [stderr] 74 | | } [INFO] [stderr] | |_^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(deprecated)]` on by default [INFO] [stderr] = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting [INFO] [stderr] --> src/frcode.rs:60:1 [INFO] [stderr] | [INFO] [stderr] 60 | / error_chain!{ [INFO] [stderr] 61 | | foreign_links { [INFO] [stderr] 62 | | Io(io::Error); [INFO] [stderr] 63 | | } [INFO] [stderr] ... | [INFO] [stderr] 82 | | } [INFO] [stderr] 83 | | } [INFO] [stderr] | |_^ [INFO] [stderr] | [INFO] [stderr] = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting [INFO] [stderr] --> src/database.rs:87:1 [INFO] [stderr] | [INFO] [stderr] 87 | / error_chain! { [INFO] [stderr] 88 | | errors { [INFO] [stderr] 89 | | UnsupportedFileType(found: Vec) { [INFO] [stderr] 90 | | description("unsupported file type") [INFO] [stderr] ... | [INFO] [stderr] 118 | | } [INFO] [stderr] 119 | | } [INFO] [stderr] | |_^ [INFO] [stderr] | [INFO] [stderr] = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 2.94s [INFO] running `"docker" "inspect" "cd885bb02194d57af372e3cc849f252ff6744925ea011b7a97d835a5c70a97c8"` [INFO] running `"docker" "rm" "-f" "cd885bb02194d57af372e3cc849f252ff6744925ea011b7a97d835a5c70a97c8"` [INFO] [stdout] cd885bb02194d57af372e3cc849f252ff6744925ea011b7a97d835a5c70a97c8 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/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/bennofs/nix-index:/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] 6d857697551c8a31f60034ed10c8f6f00194a5b385ba2f4c4b1f0f23a7bfedcd [INFO] running `"docker" "start" "-a" "6d857697551c8a31f60034ed10c8f6f00194a5b385ba2f4c4b1f0f23a7bfedcd"` [INFO] [stderr] warning: An explicit [[example]] section is specified in Cargo.toml which currently [INFO] [stderr] disables Cargo from automatically inferring other example targets. [INFO] [stderr] This inference behavior will change in the Rust 2018 edition and the following [INFO] [stderr] files will be included as a example target: [INFO] [stderr] [INFO] [stderr] * /opt/crater/workdir/examples/nix-index-debug.rs [INFO] [stderr] [INFO] [stderr] This is likely to break cargo build or cargo test as these files may not be [INFO] [stderr] ready to be compiled as a example target today. You can future-proof yourself [INFO] [stderr] and disable this warning by adding `autoexamples = false` to your [package] [INFO] [stderr] section. You may also move the files to a location where Cargo would not [INFO] [stderr] automatically infer them to be a target, such as in subfolders. [INFO] [stderr] [INFO] [stderr] For more information on this warning you can consult [INFO] [stderr] https://github.com/rust-lang/cargo/issues/5330 [INFO] [stderr] warning: version requirement `0.4.17+zstd.1.3.3` for dependency `zstd` includes semver metadata which will be ignored, removing the metadata is recommended to avoid confusion [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.07s [INFO] [stderr] Running /opt/crater/target/debug/deps/nix_index-b9e7391a8c721ffd [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/nix_index-f6d0b2e4bb57cc08 [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/nix_locate-d23bb3d0bfcda4a7 [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 nix-index [INFO] [stdout] [INFO] [stdout] running 7 tests [INFO] [stdout] test src/util.rs - util::future_result (line 46) ... ok [INFO] [stdout] test src/workset.rs - workset (line 16) ... ok [INFO] [stdout] test src/package.rs - package::StorePath::origin (line 264) ... ok [INFO] [stdout] test src/package.rs - package::StorePath::store_dir (line 232) ... ok [INFO] [stdout] test src/package.rs - package::StorePath::name (line 198) ... ok [INFO] [stdout] test src/package.rs - package::StorePath::as_str (line 247) ... ok [INFO] [stdout] test src/package.rs - package::StorePath::hash (line 214) ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] running `"docker" "inspect" "6d857697551c8a31f60034ed10c8f6f00194a5b385ba2f4c4b1f0f23a7bfedcd"` [INFO] running `"docker" "rm" "-f" "6d857697551c8a31f60034ed10c8f6f00194a5b385ba2f4c4b1f0f23a7bfedcd"` [INFO] [stdout] 6d857697551c8a31f60034ed10c8f6f00194a5b385ba2f4c4b1f0f23a7bfedcd