[INFO] cloning repository https://github.com/BrandtM/counter
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/BrandtM/counter" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBrandtM%2Fcounter"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBrandtM%2Fcounter'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e0eb8f11b34019e268a8f016730233ceffb37949
[INFO] checking BrandtM/counter against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBrandtM%2Fcounter" "/workspace/builds/worker-9/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/BrandtM/counter on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/BrandtM/counter
[INFO] finished tweaking git repo https://github.com/BrandtM/counter
[INFO] tweaked toml for git repo https://github.com/BrandtM/counter written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/BrandtM/counter already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "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] 2f79fb2eba2234299a0079d3d84bb27eec4a7a01e0d6ecf096520332cea68c2a
[INFO] running `"docker" "start" "-a" "2f79fb2eba2234299a0079d3d84bb27eec4a7a01e0d6ecf096520332cea68c2a"`
[INFO] [stderr]    Compiling proc-macro2 v0.4.16
[INFO] [stderr]     Checking rand_core v0.2.1
[INFO] [stderr]    Compiling serde v1.0.76
[INFO] [stderr]     Checking futures v0.1.23
[INFO] [stderr]    Compiling indexmap v1.0.1
[INFO] [stderr]     Checking lazycell v1.0.0
[INFO] [stderr]    Compiling ring v0.13.2
[INFO] [stderr]    Compiling pear_codegen v0.1.0 (http://github.com/SergioBenitez/Pear?rev=b475140#b4751403)
[INFO] [stderr]    Compiling rocket v0.4.0-dev (https://github.com/SergioBenitez/Rocket#42361c31)
[INFO] [stderr]    Compiling rocket_codegen v0.4.0-dev (https://github.com/SergioBenitez/Rocket#42361c31)
[INFO] [stderr]     Checking filetime v0.2.1
[INFO] [stderr]     Checking bytes v0.4.9
[INFO] [stderr]     Checking mio v0.6.15
[INFO] [stderr]     Checking lock_api v0.1.3
[INFO] [stderr]    Compiling hyper v0.10.13
[INFO] [stderr]     Checking rand v0.5.5
[INFO] [stderr]     Checking mio-extras v2.0.5
[INFO] [stderr]    Compiling quote v0.6.8
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]     Checking parking_lot_core v0.3.0
[INFO] [stderr]     Checking tokio-io v0.1.8
[INFO] [stderr]     Checking tokio-executor v0.1.4
[INFO] [stderr]     Checking parking_lot v0.6.4
[INFO] [stderr]     Checking tokio-reactor v0.1.5
[INFO] [stderr]     Checking inotify v0.6.1
[INFO] [stderr]     Checking cookie v0.11.0
[INFO] [stderr]     Checking notify v4.0.6
[INFO] [stderr]     Checking toml v0.4.6
[INFO] [stderr]     Checking serde_json v1.0.26
[INFO] [stderr]     Checking chrono v0.4.6
[INFO] [stderr]    Compiling derive_utils_core v0.1.0 (https://github.com/SergioBenitez/derive-utils?rev=160da392#160da392)
[INFO] [stderr]    Compiling derive_utils_codegen v0.1.0 (https://github.com/SergioBenitez/derive-utils?rev=160da392#160da392)
[INFO] [stderr]    Compiling serde_derive v1.0.76
[INFO] [stderr]    Compiling derive_utils v0.1.0 (https://github.com/SergioBenitez/derive-utils?rev=160da392#160da392)
[INFO] [stderr]    Compiling pear v0.1.0 (http://github.com/SergioBenitez/Pear?rev=b475140#b4751403)
[INFO] [stderr] error[E0557]: feature has been removed
[INFO] [stderr]  --> /opt/rustwide/cargo-home/git/checkouts/pear-000cd7c33a1ee164/b475140/lib/src/lib.rs:2:12
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(proc_macro_non_items, use_extern_macros)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr] note: subsumed by `#![feature(proc_macro_hygiene)]`
[INFO] [stderr]  --> /opt/rustwide/cargo-home/git/checkouts/pear-000cd7c33a1ee164/b475140/lib/src/lib.rs:2:12
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(proc_macro_non_items, use_extern_macros)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0557]: feature has been removed
[INFO] [stderr]  --> /opt/rustwide/cargo-home/git/checkouts/pear-000cd7c33a1ee164/b475140/lib/src/lib.rs:2:12
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(proc_macro_non_items, use_extern_macros)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr] note: subsumed by `#![feature(proc_macro_hygiene)]`
[INFO] [stderr]  --> /opt/rustwide/cargo-home/git/checkouts/pear-000cd7c33a1ee164/b475140/lib/src/lib.rs:2:12
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(proc_macro_non_items, use_extern_macros)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: procedural macros cannot be expanded to statements
[INFO] [stderr]    --> /opt/rustwide/cargo-home/git/checkouts/pear-000cd7c33a1ee164/b475140/lib/src/parsers.rs:296:9
[INFO] [stderr]     |
[INFO] [stderr] 296 | /         switch! { [collection; input]
[INFO] [stderr] 297 | |             eat(end) => break,
[INFO] [stderr] 298 | |             eat(seperator) => continue,
[INFO] [stderr] 299 | |             _ => collection.add(item()?)
[INFO] [stderr] 300 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: for more information, see https://github.com/rust-lang/rust/issues/54727
[INFO] [stderr]     = help: add `#![feature(proc_macro_hygiene)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: procedural macros cannot be expanded to statements
[INFO] [stderr]    --> /opt/rustwide/cargo-home/git/checkouts/pear-000cd7c33a1ee164/b475140/lib/src/parsers.rs:296:9
[INFO] [stderr]     |
[INFO] [stderr] 296 | /         switch! { [collection; input]
[INFO] [stderr] 297 | |             eat(end) => break,
[INFO] [stderr] 298 | |             eat(seperator) => continue,
[INFO] [stderr] 299 | |             _ => collection.add(item()?)
[INFO] [stderr] 300 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: for more information, see https://github.com/rust-lang/rust/issues/54727
[INFO] [stderr]     = help: add `#![feature(proc_macro_hygiene)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0557, E0658.
[INFO] [stderr] For more information about an error, try `rustc --explain E0557`.
[INFO] [stderr] error: could not compile `pear`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0557, E0658.
[INFO] [stderr] For more information about an error, try `rustc --explain E0557`.
[INFO] [stderr] error: could not compile `pear`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "2f79fb2eba2234299a0079d3d84bb27eec4a7a01e0d6ecf096520332cea68c2a"`
[INFO] running `"docker" "rm" "-f" "2f79fb2eba2234299a0079d3d84bb27eec4a7a01e0d6ecf096520332cea68c2a"`
[INFO] [stdout] 2f79fb2eba2234299a0079d3d84bb27eec4a7a01e0d6ecf096520332cea68c2a