[INFO] crate mief 0.1.1 is already in cache
[INFO] extracting crate mief 0.1.1 into work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/reg/mief/0.1.1
[INFO] extracting crate mief 0.1.1 into work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/reg/mief/0.1.1
[INFO] validating manifest of mief-0.1.1 on toolchain master#435236b8877cdb98c82eaebfb7887782277265c5
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of mief-0.1.1 on toolchain try#b5c7f157c20453dde8d47371abe73b32351b4e7f
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing mief-0.1.1
[INFO] finished frobbing mief-0.1.1
[INFO] frobbed toml for mief-0.1.1 written to work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/reg/mief/0.1.1/Cargo.toml
[INFO] started frobbing mief-0.1.1
[INFO] finished frobbing mief-0.1.1
[INFO] frobbed toml for mief-0.1.1 written to work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/reg/mief/0.1.1/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking mief-0.1.1 against try#b5c7f157c20453dde8d47371abe73b32351b4e7f for pr-62849
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62849/worker-1/try#b5c7f157c20453dde8d47371abe73b32351b4e7f:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/reg/mief/0.1.1:/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=forbid" "-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" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 929249de31521bac31bc56cc164ae4bdc733ca4fc04f84501ffbd45e09f4ebb3
[INFO] running `"docker" "start" "-a" "929249de31521bac31bc56cc164ae4bdc733ca4fc04f84501ffbd45e09f4ebb3"`
[INFO] [stderr]    Compiling glutin v0.10.1
[INFO] [stderr]     Checking piston2d-graphics v0.23.0
[INFO] [stderr]     Checking pistoncore-input v0.20.0
[INFO] [stderr]     Checking image v0.17.0
[INFO] [stderr]     Checking wayland-window v0.8.0
[INFO] [stderr]     Checking winit v0.8.3
[INFO] [stderr]     Checking pistoncore-window v0.30.0
[INFO] [stderr]     Checking pistoncore-event_loop v0.35.0
[INFO] [stderr]     Checking piston-gfx_texture v0.29.0
[INFO] [stderr]     Checking piston v0.35.0
[INFO] [stderr]     Checking piston2d-gfx_graphics v0.46.0
[INFO] [stderr]     Checking pistoncore-glutin_window v0.42.1
[INFO] [stderr]     Checking piston_window v0.73.0
[INFO] [stderr]     Checking mief v0.1.1 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/execution_flow/error.rs:36:32
[INFO] [stderr]    |
[INFO] [stderr] 36 |     fn cause(&self) -> Option<&::std::error::Error> {
[INFO] [stderr]    |                                ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn (::std::error::Error)`
[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/execution_flow/error.rs:36:32
[INFO] [stderr]    |
[INFO] [stderr] 36 |     fn cause(&self) -> Option<&::std::error::Error> {
[INFO] [stderr]    |                                ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn (::std::error::Error)`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/execution_flow/error.rs:72:23
[INFO] [stderr]    |
[INFO] [stderr] 72 |         assert!(error.cause().is_some(), "Piston errors do not have a cause.");
[INFO] [stderr]    |                       ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/execution_flow/error.rs:79:23
[INFO] [stderr]    |
[INFO] [stderr] 79 |         assert!(error.cause().is_none(), "Piston errors do not have a cause.");
[INFO] [stderr]    |                       ^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 25.85s
[INFO] running `"docker" "inspect" "929249de31521bac31bc56cc164ae4bdc733ca4fc04f84501ffbd45e09f4ebb3"`
[INFO] running `"docker" "rm" "-f" "929249de31521bac31bc56cc164ae4bdc733ca4fc04f84501ffbd45e09f4ebb3"`
[INFO] [stdout] 929249de31521bac31bc56cc164ae4bdc733ca4fc04f84501ffbd45e09f4ebb3