[INFO] fetching crate cell-project 0.1.2...
[INFO] checking cell-project-0.1.2 against master#de32266a1780aa4ef748ce7f6200a1554fad0aca for pr-75585
[INFO] extracting crate cell-project 0.1.2 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate cell-project 0.1.2 on toolchain de32266a1780aa4ef748ce7f6200a1554fad0aca
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+de32266a1780aa4ef748ce7f6200a1554fad0aca" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cell-project 0.1.2
[INFO] finished tweaking crates.io crate cell-project 0.1.2
[INFO] tweaked toml for crates.io crate cell-project 0.1.2 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+de32266a1780aa4ef748ce7f6200a1554fad0aca" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+de32266a1780aa4ef748ce7f6200a1554fad0aca" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+de32266a1780aa4ef748ce7f6200a1554fad0aca" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 08f9b3470227eeed82f494a050847e319343a03a296c4757a1c668b04323576e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "08f9b3470227eeed82f494a050847e319343a03a296c4757a1c668b04323576e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "08f9b3470227eeed82f494a050847e319343a03a296c4757a1c668b04323576e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08f9b3470227eeed82f494a050847e319343a03a296c4757a1c668b04323576e", kill_on_drop: false }`
[INFO] [stdout] 08f9b3470227eeed82f494a050847e319343a03a296c4757a1c668b04323576e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+de32266a1780aa4ef748ce7f6200a1554fad0aca" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 42ac105ee480d5640997bbe89ef79fa460575ba796b2835259d80444e2eb5570
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "42ac105ee480d5640997bbe89ef79fa460575ba796b2835259d80444e2eb5570", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.115
[INFO] [stderr]     Checking cell-project v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Checking serde_json v1.0.57
[INFO] [stderr]     Checking trybuild v1.0.33
[INFO] [stdout] error[E0277]: the size for values of type `[_]` cannot be known at compilation time
[INFO] [stdout]    --> tests/pass.rs:111:33
[INFO] [stdout]     |
[INFO] [stdout] 111 |         let build: &Cell<[_]> = project!(a::Bar<_>, bar.build);
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ doesn't have a size known at compile-time
[INFO] [stdout]     | 
[INFO] [stdout]    ::: /opt/rustwide/workdir/src/macros.rs:32:44
[INFO] [stdout]     |
[INFO] [stdout] 32  | pub unsafe fn project_unchecked<T: ?Sized, F>(
[INFO] [stdout]     |                                            - required by this bound in `cell_project::macros::project_unchecked`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `std::marker::Sized` is not implemented for `[_]`
[INFO] [stdout]     = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the size for values of type `[_]` cannot be known at compilation time
[INFO] [stdout]    --> tests/pass.rs:136:33
[INFO] [stdout]     |
[INFO] [stdout] 136 |         let build: &Cell<[_]> = project!(a::Bar<_>, bar.build);
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ doesn't have a size known at compile-time
[INFO] [stdout]     | 
[INFO] [stdout]    ::: /opt/rustwide/workdir/src/macros.rs:32:44
[INFO] [stdout]     |
[INFO] [stdout] 32  | pub unsafe fn project_unchecked<T: ?Sized, F>(
[INFO] [stdout]     |                                            - required by this bound in `cell_project::macros::project_unchecked`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `std::marker::Sized` is not implemented for `[_]`
[INFO] [stdout]     = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cell-project`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "42ac105ee480d5640997bbe89ef79fa460575ba796b2835259d80444e2eb5570", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "42ac105ee480d5640997bbe89ef79fa460575ba796b2835259d80444e2eb5570", kill_on_drop: false }`
[INFO] [stdout] 42ac105ee480d5640997bbe89ef79fa460575ba796b2835259d80444e2eb5570