[INFO] updating cached repository https://github.com/bkoropoff/rust-viewbox
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ea87ebcc5eb70d8f04645a85a8cf61f07d929f07
[INFO] checking bkoropoff/rust-viewbox against master#209b2be09fcaff937480d1fbbe8b31646e361c7a for pr-70917
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbkoropoff%2Frust-viewbox" "/workspace/builds/worker-4/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/bkoropoff/rust-viewbox on toolchain 209b2be09fcaff937480d1fbbe8b31646e361c7a
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/bkoropoff/rust-viewbox
[INFO] finished tweaking git repo https://github.com/bkoropoff/rust-viewbox
[INFO] tweaked toml for git repo https://github.com/bkoropoff/rust-viewbox written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/bkoropoff/rust-viewbox already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 5ea983f49b44aff0c28e5cb5a5b20accdb68cc2c6b8d8c3805bb86d0d3b4b352
[INFO] running `"docker" "start" "-a" "5ea983f49b44aff0c28e5cb5a5b20accdb68cc2c6b8d8c3805bb86d0d3b4b352"`
[INFO] [stderr]     Checking viewbox v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0658]: box expression syntax is experimental; you can call `Box::new` instead
[INFO] [stderr]   --> src/lib.rs:20:29
[INFO] [stderr]    |
[INFO] [stderr] 20 |                   let mut d = box data;
[INFO] [stderr]    |                               ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 87 | /     viewbox! {
[INFO] [stderr] 88 | |         struct TestBox<TestData,TestView>;
[INFO] [stderr] 89 | |     }
[INFO] [stderr]    | |_____- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #49733 <https://github.com/rust-lang/rust/issues/49733> for more information
[INFO] [stderr]    = help: add `#![feature(box_syntax)]` to the crate attributes to enable
[INFO] [stderr]    = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: box expression syntax is experimental; you can call `Box::new` instead
[INFO] [stderr]   --> src/lib.rs:30:29
[INFO] [stderr]    |
[INFO] [stderr] 30 |                   let mut d = box data;
[INFO] [stderr]    |                               ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 87 | /     viewbox! {
[INFO] [stderr] 88 | |         struct TestBox<TestData,TestView>;
[INFO] [stderr] 89 | |     }
[INFO] [stderr]    | |_____- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #49733 <https://github.com/rust-lang/rust/issues/49733> for more information
[INFO] [stderr]    = help: add `#![feature(box_syntax)]` to the crate attributes to enable
[INFO] [stderr]    = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: box pattern syntax is experimental
[INFO] [stderr]   --> src/lib.rs:38:35
[INFO] [stderr]    |
[INFO] [stderr] 38 |                   let $name { data: box data, .. } = self;
[INFO] [stderr]    |                                     ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 87 | /     viewbox! {
[INFO] [stderr] 88 | |         struct TestBox<TestData,TestView>;
[INFO] [stderr] 89 | |     }
[INFO] [stderr]    | |_____- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #29641 <https://github.com/rust-lang/rust/issues/29641> for more information
[INFO] [stderr]    = help: add `#![feature(box_patterns)]` to the crate attributes to enable
[INFO] [stderr]    = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: box expression syntax is experimental; you can call `Box::new` instead
[INFO] [stderr]    --> src/lib.rs:20:29
[INFO] [stderr]     |
[INFO] [stderr] 20  |                   let mut d = box data;
[INFO] [stderr]     |                               ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 98  | /     viewbox! {
[INFO] [stderr] 99  | |         struct MutBox<TestData, MutView>;
[INFO] [stderr] 100 | |     }
[INFO] [stderr]     | |_____- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #49733 <https://github.com/rust-lang/rust/issues/49733> for more information
[INFO] [stderr]     = help: add `#![feature(box_syntax)]` to the crate attributes to enable
[INFO] [stderr]     = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: box expression syntax is experimental; you can call `Box::new` instead
[INFO] [stderr]    --> src/lib.rs:30:29
[INFO] [stderr]     |
[INFO] [stderr] 30  |                   let mut d = box data;
[INFO] [stderr]     |                               ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 98  | /     viewbox! {
[INFO] [stderr] 99  | |         struct MutBox<TestData, MutView>;
[INFO] [stderr] 100 | |     }
[INFO] [stderr]     | |_____- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #49733 <https://github.com/rust-lang/rust/issues/49733> for more information
[INFO] [stderr]     = help: add `#![feature(box_syntax)]` to the crate attributes to enable
[INFO] [stderr]     = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: box pattern syntax is experimental
[INFO] [stderr]    --> src/lib.rs:38:35
[INFO] [stderr]     |
[INFO] [stderr] 38  |                   let $name { data: box data, .. } = self;
[INFO] [stderr]     |                                     ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 98  | /     viewbox! {
[INFO] [stderr] 99  | |         struct MutBox<TestData, MutView>;
[INFO] [stderr] 100 | |     }
[INFO] [stderr]     | |_____- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #29641 <https://github.com/rust-lang/rust/issues/29641> for more information
[INFO] [stderr]     = help: add `#![feature(box_patterns)]` to the crate attributes to enable
[INFO] [stderr]     = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 6 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0658`.
[INFO] [stderr] error: could not compile `viewbox`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "5ea983f49b44aff0c28e5cb5a5b20accdb68cc2c6b8d8c3805bb86d0d3b4b352"`
[INFO] running `"docker" "rm" "-f" "5ea983f49b44aff0c28e5cb5a5b20accdb68cc2c6b8d8c3805bb86d0d3b4b352"`
[INFO] [stdout] 5ea983f49b44aff0c28e5cb5a5b20accdb68cc2c6b8d8c3805bb86d0d3b4b352
