[INFO] crate content 0.6.0 is already in cache
[INFO] extracting crate content 0.6.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/content/0.6.0
[INFO] extracting crate content 0.6.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/content/0.6.0
[INFO] validating manifest of content-0.6.0 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 content-0.6.0 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 content-0.6.0
[INFO] finished frobbing content-0.6.0
[INFO] frobbed toml for content-0.6.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/content/0.6.0/Cargo.toml
[INFO] started frobbing content-0.6.0
[INFO] finished frobbing content-0.6.0
[INFO] frobbed toml for content-0.6.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/content/0.6.0/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 content-0.6.0 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-4/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/content/0.6.0:/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] a642ddd8fc657ea8e5803f24f4079b73162e3beae3a7bee9631815f5691332b3
[INFO] running `"docker" "start" "-a" "a642ddd8fc657ea8e5803f24f4079b73162e3beae3a7bee9631815f5691332b3"`
[INFO] [stderr]    Compiling content v0.6.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/content.rs:30:16
[INFO] [stderr]    |
[INFO] [stderr] 30 |     read: &'a mut Read,
[INFO] [stderr]    |                   ^^^^ help: use `dyn`: `dyn Read`
[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/content.rs:31:39
[INFO] [stderr]    |
[INFO] [stderr] 31 |     pub backend: RwLockReadGuard<'a, Box<Backend<H>>>,
[INFO] [stderr]    |                                          ^^^^^^^^^^ help: use `dyn`: `dyn Backend<H>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/content.rs:36:17
[INFO] [stderr]    |
[INFO] [stderr] 36 |         read: &'a mut Read,
[INFO] [stderr]    |                       ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/content.rs:37:36
[INFO] [stderr]    |
[INFO] [stderr] 37 |         backend: RwLockReadGuard<'a, Box<Backend<H>>>,
[INFO] [stderr]    |                                          ^^^^^^^^^^ help: use `dyn`: `dyn Backend<H>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/content.rs:53:17
[INFO] [stderr]    |
[INFO] [stderr] 53 |     write: &'a mut Write,
[INFO] [stderr]    |                    ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/content.rs:54:23
[INFO] [stderr]    |
[INFO] [stderr] 54 |     pub backend: &'a mut Backend<H>,
[INFO] [stderr]    |                          ^^^^^^^^^^ help: use `dyn`: `dyn Backend<H>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/content.rs:60:18
[INFO] [stderr]    |
[INFO] [stderr] 60 |         write: &'a mut Write,
[INFO] [stderr]    |                        ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/content.rs:61:20
[INFO] [stderr]    |
[INFO] [stderr] 61 |         backend: &'a mut Backend<H>,
[INFO] [stderr]    |                          ^^^^^^^^^^ help: use `dyn`: `dyn Backend<H>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/store.rs:29:26
[INFO] [stderr]    |
[INFO] [stderr] 29 |     backend: Arc<RwLock<Box<Backend<H>>>>,
[INFO] [stderr]    |                             ^^^^^^^^^^ help: use `dyn`: `dyn Backend<H>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/store.rs:38:39
[INFO] [stderr]    |
[INFO] [stderr] 38 |     pub fn new_with_backend(backend: Box<Backend<H>>) -> Self {
[INFO] [stderr]    |                                          ^^^^^^^^^^ help: use `dyn`: `dyn Backend<H>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/backend/hashmap.rs:28:12
[INFO] [stderr]    |
[INFO] [stderr] 28 |         source: &Fn(&mut Write, &mut Backend<H>) -> Result<H::Digest>,
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut Write, &mut Backend<H>) -> Result<H::Digest>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/backend/hashmap.rs:28:20
[INFO] [stderr]    |
[INFO] [stderr] 28 |         source: &Fn(&mut Write, &mut Backend<H>) -> Result<H::Digest>,
[INFO] [stderr]    |                          ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/backend/hashmap.rs:28:32
[INFO] [stderr]    |
[INFO] [stderr] 28 |         source: &Fn(&mut Write, &mut Backend<H>) -> Result<H::Digest>,
[INFO] [stderr]    |                                      ^^^^^^^^^^ help: use `dyn`: `dyn Backend<H>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/backend/hashmap.rs:38:10
[INFO] [stderr]    |
[INFO] [stderr] 38 |         read: &Fn(&mut Read) -> Result<()>,
[INFO] [stderr]    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut Read) -> Result<()>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/backend/hashmap.rs:38:18
[INFO] [stderr]    |
[INFO] [stderr] 38 |         read: &Fn(&mut Read) -> Result<()>,
[INFO] [stderr]    |                        ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/backend/pathbuf.rs:57:12
[INFO] [stderr]    |
[INFO] [stderr] 57 |         source: &Fn(&mut Write, &mut Backend<H>) -> Result<H::Digest>
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut Write, &mut Backend<H>) -> Result<H::Digest>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/backend/pathbuf.rs:57:20
[INFO] [stderr]    |
[INFO] [stderr] 57 |         source: &Fn(&mut Write, &mut Backend<H>) -> Result<H::Digest>
[INFO] [stderr]    |                          ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/backend/pathbuf.rs:57:32
[INFO] [stderr]    |
[INFO] [stderr] 57 |         source: &Fn(&mut Write, &mut Backend<H>) -> Result<H::Digest>
[INFO] [stderr]    |                                      ^^^^^^^^^^ help: use `dyn`: `dyn Backend<H>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/backend/pathbuf.rs:69:10
[INFO] [stderr]    |
[INFO] [stderr] 69 |         read: &Fn(&mut Read) -> Result<()>,
[INFO] [stderr]    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut Read) -> Result<()>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/backend/pathbuf.rs:69:18
[INFO] [stderr]    |
[INFO] [stderr] 69 |         read: &Fn(&mut Read) -> Result<()>,
[INFO] [stderr]    |                        ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/backend/mod.rs:26:12
[INFO] [stderr]    |
[INFO] [stderr] 26 |         source: &Fn(&mut Write, &mut Backend<H>) -> Result<H::Digest>,
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut Write, &mut Backend<H>) -> Result<H::Digest>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/backend/mod.rs:26:20
[INFO] [stderr]    |
[INFO] [stderr] 26 |         source: &Fn(&mut Write, &mut Backend<H>) -> Result<H::Digest>,
[INFO] [stderr]    |                          ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/backend/mod.rs:26:32
[INFO] [stderr]    |
[INFO] [stderr] 26 |         source: &Fn(&mut Write, &mut Backend<H>) -> Result<H::Digest>,
[INFO] [stderr]    |                                      ^^^^^^^^^^ help: use `dyn`: `dyn Backend<H>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/backend/mod.rs:31:10
[INFO] [stderr]    |
[INFO] [stderr] 31 |         read: &Fn(&mut Read) -> Result<()>,
[INFO] [stderr]    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut Read) -> Result<()>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/backend/mod.rs:31:18
[INFO] [stderr]    |
[INFO] [stderr] 31 |         read: &Fn(&mut Read) -> Result<()>,
[INFO] [stderr]    |                        ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.85s
[INFO] running `"docker" "inspect" "a642ddd8fc657ea8e5803f24f4079b73162e3beae3a7bee9631815f5691332b3"`
[INFO] running `"docker" "rm" "-f" "a642ddd8fc657ea8e5803f24f4079b73162e3beae3a7bee9631815f5691332b3"`
[INFO] [stdout] a642ddd8fc657ea8e5803f24f4079b73162e3beae3a7bee9631815f5691332b3
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/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/content/0.6.0:/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] 0413088c8e38aef3e04ddbe37cd26c4c2c1021e8d8284d42299044e1bd120fc9
[INFO] running `"docker" "start" "-a" "0413088c8e38aef3e04ddbe37cd26c4c2c1021e8d8284d42299044e1bd120fc9"`
[INFO] [stderr]    Compiling content v0.6.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/test_common.rs:33:12
[INFO] [stderr]    |
[INFO] [stderr] 33 |         source: &Fn(&mut Write, &mut Backend<H>) -> Result<H::Digest>,
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut Write, &mut Backend<H>) -> Result<H::Digest>`
[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/test_common.rs:33:20
[INFO] [stderr]    |
[INFO] [stderr] 33 |         source: &Fn(&mut Write, &mut Backend<H>) -> Result<H::Digest>,
[INFO] [stderr]    |                          ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/test_common.rs:33:32
[INFO] [stderr]    |
[INFO] [stderr] 33 |         source: &Fn(&mut Write, &mut Backend<H>) -> Result<H::Digest>,
[INFO] [stderr]    |                                      ^^^^^^^^^^ help: use `dyn`: `dyn Backend<H>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/test_common.rs:40:10
[INFO] [stderr]    |
[INFO] [stderr] 40 |         read: &Fn(&mut Read) -> Result<()>,
[INFO] [stderr]    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut Read) -> Result<()>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/test_common.rs:40:18
[INFO] [stderr]    |
[INFO] [stderr] 40 |         read: &Fn(&mut Read) -> Result<()>,
[INFO] [stderr]    |                        ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/test_common.rs:43:12
[INFO] [stderr]    |
[INFO] [stderr] 43 |         (&pb as &Backend<H>).request(hash, read)
[INFO] [stderr]    |                  ^^^^^^^^^^ help: use `dyn`: `dyn Backend<H>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/content.rs:30:16
[INFO] [stderr]    |
[INFO] [stderr] 30 |     read: &'a mut Read,
[INFO] [stderr]    |                   ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/content.rs:31:39
[INFO] [stderr]    |
[INFO] [stderr] 31 |     pub backend: RwLockReadGuard<'a, Box<Backend<H>>>,
[INFO] [stderr]    |                                          ^^^^^^^^^^ help: use `dyn`: `dyn Backend<H>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/content.rs:36:17
[INFO] [stderr]    |
[INFO] [stderr] 36 |         read: &'a mut Read,
[INFO] [stderr]    |                       ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/content.rs:37:36
[INFO] [stderr]    |
[INFO] [stderr] 37 |         backend: RwLockReadGuard<'a, Box<Backend<H>>>,
[INFO] [stderr]    |                                          ^^^^^^^^^^ help: use `dyn`: `dyn Backend<H>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/content.rs:53:17
[INFO] [stderr]    |
[INFO] [stderr] 53 |     write: &'a mut Write,
[INFO] [stderr]    |                    ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/content.rs:54:23
[INFO] [stderr]    |
[INFO] [stderr] 54 |     pub backend: &'a mut Backend<H>,
[INFO] [stderr]    |                          ^^^^^^^^^^ help: use `dyn`: `dyn Backend<H>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/content.rs:60:18
[INFO] [stderr]    |
[INFO] [stderr] 60 |         write: &'a mut Write,
[INFO] [stderr]    |                        ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/content.rs:61:20
[INFO] [stderr]    |
[INFO] [stderr] 61 |         backend: &'a mut Backend<H>,
[INFO] [stderr]    |                          ^^^^^^^^^^ help: use `dyn`: `dyn Backend<H>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/store.rs:29:26
[INFO] [stderr]    |
[INFO] [stderr] 29 |     backend: Arc<RwLock<Box<Backend<H>>>>,
[INFO] [stderr]    |                             ^^^^^^^^^^ help: use `dyn`: `dyn Backend<H>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/store.rs:38:39
[INFO] [stderr]    |
[INFO] [stderr] 38 |     pub fn new_with_backend(backend: Box<Backend<H>>) -> Self {
[INFO] [stderr]    |                                          ^^^^^^^^^^ help: use `dyn`: `dyn Backend<H>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/backend/hashmap.rs:28:12
[INFO] [stderr]    |
[INFO] [stderr] 28 |         source: &Fn(&mut Write, &mut Backend<H>) -> Result<H::Digest>,
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut Write, &mut Backend<H>) -> Result<H::Digest>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/backend/hashmap.rs:28:20
[INFO] [stderr]    |
[INFO] [stderr] 28 |         source: &Fn(&mut Write, &mut Backend<H>) -> Result<H::Digest>,
[INFO] [stderr]    |                          ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/backend/hashmap.rs:28:32
[INFO] [stderr]    |
[INFO] [stderr] 28 |         source: &Fn(&mut Write, &mut Backend<H>) -> Result<H::Digest>,
[INFO] [stderr]    |                                      ^^^^^^^^^^ help: use `dyn`: `dyn Backend<H>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/backend/hashmap.rs:38:10
[INFO] [stderr]    |
[INFO] [stderr] 38 |         read: &Fn(&mut Read) -> Result<()>,
[INFO] [stderr]    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut Read) -> Result<()>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/backend/hashmap.rs:38:18
[INFO] [stderr]    |
[INFO] [stderr] 38 |         read: &Fn(&mut Read) -> Result<()>,
[INFO] [stderr]    |                        ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/backend/pathbuf.rs:57:12
[INFO] [stderr]    |
[INFO] [stderr] 57 |         source: &Fn(&mut Write, &mut Backend<H>) -> Result<H::Digest>
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut Write, &mut Backend<H>) -> Result<H::Digest>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/backend/pathbuf.rs:57:20
[INFO] [stderr]    |
[INFO] [stderr] 57 |         source: &Fn(&mut Write, &mut Backend<H>) -> Result<H::Digest>
[INFO] [stderr]    |                          ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/backend/pathbuf.rs:57:32
[INFO] [stderr]    |
[INFO] [stderr] 57 |         source: &Fn(&mut Write, &mut Backend<H>) -> Result<H::Digest>
[INFO] [stderr]    |                                      ^^^^^^^^^^ help: use `dyn`: `dyn Backend<H>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/backend/pathbuf.rs:69:10
[INFO] [stderr]    |
[INFO] [stderr] 69 |         read: &Fn(&mut Read) -> Result<()>,
[INFO] [stderr]    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut Read) -> Result<()>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/backend/pathbuf.rs:69:18
[INFO] [stderr]    |
[INFO] [stderr] 69 |         read: &Fn(&mut Read) -> Result<()>,
[INFO] [stderr]    |                        ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/backend/mod.rs:26:12
[INFO] [stderr]    |
[INFO] [stderr] 26 |         source: &Fn(&mut Write, &mut Backend<H>) -> Result<H::Digest>,
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut Write, &mut Backend<H>) -> Result<H::Digest>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/backend/mod.rs:26:20
[INFO] [stderr]    |
[INFO] [stderr] 26 |         source: &Fn(&mut Write, &mut Backend<H>) -> Result<H::Digest>,
[INFO] [stderr]    |                          ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/backend/mod.rs:26:32
[INFO] [stderr]    |
[INFO] [stderr] 26 |         source: &Fn(&mut Write, &mut Backend<H>) -> Result<H::Digest>,
[INFO] [stderr]    |                                      ^^^^^^^^^^ help: use `dyn`: `dyn Backend<H>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/backend/mod.rs:31:10
[INFO] [stderr]    |
[INFO] [stderr] 31 |         read: &Fn(&mut Read) -> Result<()>,
[INFO] [stderr]    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut Read) -> Result<()>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/backend/mod.rs:31:18
[INFO] [stderr]    |
[INFO] [stderr] 31 |         read: &Fn(&mut Read) -> Result<()>,
[INFO] [stderr]    |                        ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.83s
[INFO] running `"docker" "inspect" "0413088c8e38aef3e04ddbe37cd26c4c2c1021e8d8284d42299044e1bd120fc9"`
[INFO] running `"docker" "rm" "-f" "0413088c8e38aef3e04ddbe37cd26c4c2c1021e8d8284d42299044e1bd120fc9"`
[INFO] [stdout] 0413088c8e38aef3e04ddbe37cd26c4c2c1021e8d8284d42299044e1bd120fc9
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/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/content/0.6.0:/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] 457c19d520e522f33442b2677d53879d5b2e4125e9bc23f0ed40e75dbe69f851
[INFO] running `"docker" "start" "-a" "457c19d520e522f33442b2677d53879d5b2e4125e9bc23f0ed40e75dbe69f851"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/content-6001c6abe8612726
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test store::tests::put_u8 ... ok
[INFO] [stdout] test std_impls::tests::std ... ok
[INFO] [stdout] test default::tests::hash_of_hash ... ok
[INFO] [stdout] test backend::pathbuf::tests::disk_write_get ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests content
[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" "457c19d520e522f33442b2677d53879d5b2e4125e9bc23f0ed40e75dbe69f851"`
[INFO] running `"docker" "rm" "-f" "457c19d520e522f33442b2677d53879d5b2e4125e9bc23f0ed40e75dbe69f851"`
[INFO] [stdout] 457c19d520e522f33442b2677d53879d5b2e4125e9bc23f0ed40e75dbe69f851