[INFO] crate sys-mount 1.2.0 is already in cache
[INFO] extracting crate sys-mount 1.2.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/sys-mount/1.2.0
[INFO] extracting crate sys-mount 1.2.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/sys-mount/1.2.0
[INFO] validating manifest of sys-mount-1.2.0 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 sys-mount-1.2.0 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 sys-mount-1.2.0
[INFO] finished frobbing sys-mount-1.2.0
[INFO] frobbed toml for sys-mount-1.2.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/sys-mount/1.2.0/Cargo.toml
[INFO] started frobbing sys-mount-1.2.0
[INFO] finished frobbing sys-mount-1.2.0
[INFO] frobbed toml for sys-mount-1.2.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/sys-mount/1.2.0/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 sys-mount-1.2.0 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/sys-mount/1.2.0:/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] 30b337e1dfffc886ab9bde66766ca580970abaab6cee7041f9f8e09d53726a7f
[INFO] running `"docker" "start" "-a" "30b337e1dfffc886ab9bde66766ca580970abaab6cee7041f9f8e09d53726a7f"`
[INFO] [stderr]    Compiling loopdev v0.2.1
[INFO] [stderr]    Compiling sys-mount v1.2.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/supported.rs:56:52
[INFO] [stderr]    |
[INFO] [stderr] 56 |     pub fn nodev_file_systems<'a>(&'a self) -> Box<Iterator<Item = &str> + 'a> {
[INFO] [stderr]    |                                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = &str> + 'a`
[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/supported.rs:69:50
[INFO] [stderr]    |
[INFO] [stderr] 69 |     pub fn dev_file_systems<'a>(&'a self) -> Box<Iterator<Item = &str> + 'a> {
[INFO] [stderr]    |                                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = &str> + 'a`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.79s
[INFO] running `"docker" "inspect" "30b337e1dfffc886ab9bde66766ca580970abaab6cee7041f9f8e09d53726a7f"`
[INFO] running `"docker" "rm" "-f" "30b337e1dfffc886ab9bde66766ca580970abaab6cee7041f9f8e09d53726a7f"`
[INFO] [stdout] 30b337e1dfffc886ab9bde66766ca580970abaab6cee7041f9f8e09d53726a7f
[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/sys-mount/1.2.0:/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] 5953df396fe3f018bb6246f557f277e383d033a0e6ddf843b600809fefbf00b7
[INFO] running `"docker" "start" "-a" "5953df396fe3f018bb6246f557f277e383d033a0e6ddf843b600809fefbf00b7"`
[INFO] [stderr]    Compiling sys-mount v1.2.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/supported.rs:56:52
[INFO] [stderr]    |
[INFO] [stderr] 56 |     pub fn nodev_file_systems<'a>(&'a self) -> Box<Iterator<Item = &str> + 'a> {
[INFO] [stderr]    |                                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = &str> + 'a`
[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/supported.rs:69:50
[INFO] [stderr]    |
[INFO] [stderr] 69 |     pub fn dev_file_systems<'a>(&'a self) -> Box<Iterator<Item = &str> + 'a> {
[INFO] [stderr]    |                                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = &str> + 'a`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.90s
[INFO] running `"docker" "inspect" "5953df396fe3f018bb6246f557f277e383d033a0e6ddf843b600809fefbf00b7"`
[INFO] running `"docker" "rm" "-f" "5953df396fe3f018bb6246f557f277e383d033a0e6ddf843b600809fefbf00b7"`
[INFO] [stdout] 5953df396fe3f018bb6246f557f277e383d033a0e6ddf843b600809fefbf00b7
[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/sys-mount/1.2.0:/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] 50a416d454da4e0b2a95d91d0df507926bcc45d56a4ffaf2c1c38676f227f3e9
[INFO] running `"docker" "start" "-a" "50a416d454da4e0b2a95d91d0df507926bcc45d56a4ffaf2c1c38676f227f3e9"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/sys_mount-e41f1a3017956f12
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests sys-mount
[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 4 tests
[INFO] [stdout] test src/umount.rs - umount::unmount (line 80) ... ok
[INFO] [stdout] test src/lib.rs -  (line 8) ... ok
[INFO] [stdout] test src/mount.rs - mount::Mount::new (line 119) ... ok
[INFO] [stdout] test src/supported.rs - supported::SupportedFilesystems::is_supported (line 37) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "50a416d454da4e0b2a95d91d0df507926bcc45d56a4ffaf2c1c38676f227f3e9"`
[INFO] running `"docker" "rm" "-f" "50a416d454da4e0b2a95d91d0df507926bcc45d56a4ffaf2c1c38676f227f3e9"`
[INFO] [stdout] 50a416d454da4e0b2a95d91d0df507926bcc45d56a4ffaf2c1c38676f227f3e9