[INFO] fetching crate doubly-linked-list 0.2.0...
[INFO] checking doubly-linked-list-0.2.0 against try#47af3d0de9d26c7deba4cfb203b710cc3f764e91 for pr-130443
[INFO] extracting crate doubly-linked-list 0.2.0 into /workspace/builds/worker-5-tc2/source
[INFO] validating manifest of crates.io crate doubly-linked-list 0.2.0 on toolchain 47af3d0de9d26c7deba4cfb203b710cc3f764e91
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+47af3d0de9d26c7deba4cfb203b710cc3f764e91" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate doubly-linked-list 0.2.0
[INFO] finished tweaking crates.io crate doubly-linked-list 0.2.0
[INFO] tweaked toml for crates.io crate doubly-linked-list 0.2.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+47af3d0de9d26c7deba4cfb203b710cc3f764e91" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 1 package to latest compatible version
[INFO] [stderr]       Adding volatile v0.4.6 (available: v0.6.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+47af3d0de9d26c7deba4cfb203b710cc3f764e91" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+47af3d0de9d26c7deba4cfb203b710cc3f764e91" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 015ba0c89aeae4080b48c26dccbff113c67b9c924964783cea545435a8985997
[INFO] running `Command { std: "docker" "start" "-a" "015ba0c89aeae4080b48c26dccbff113c67b9c924964783cea545435a8985997", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "015ba0c89aeae4080b48c26dccbff113c67b9c924964783cea545435a8985997", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "015ba0c89aeae4080b48c26dccbff113c67b9c924964783cea545435a8985997", kill_on_drop: false }`
[INFO] [stdout] 015ba0c89aeae4080b48c26dccbff113c67b9c924964783cea545435a8985997
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+47af3d0de9d26c7deba4cfb203b710cc3f764e91" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b0111e45cd57760b1d16d688ed6fbf956730c32753cd223ceea8fdd298e8ec4a
[INFO] running `Command { std: "docker" "start" "-a" "b0111e45cd57760b1d16d688ed6fbf956730c32753cd223ceea8fdd298e8ec4a", kill_on_drop: false }`
[INFO] [stderr]     Checking volatile v0.4.6
[INFO] [stderr]     Checking doubly-linked-list v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the feature `core_intrinsics` is internal to the compiler or standard library
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(core_intrinsics)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: using it is strongly discouraged
[INFO] [stdout]   = note: `#[warn(internal_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `core_intrinsics` is internal to the compiler or standard library
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(core_intrinsics)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: using it is strongly discouraged
[INFO] [stdout]   = note: `#[warn(internal_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: assigning to `&T` is undefined behavior, consider using an `UnsafeCell`
[INFO] [stdout]    --> src/lib.rs:161:14
[INFO] [stdout]     |
[INFO] [stdout] 161 |               *$entry = ListHead {
[INFO] [stdout]     |  ______________^
[INFO] [stdout] 162 | |                 prev: core::ptr::null_mut(),
[INFO] [stdout] 163 | |                 next: core::ptr::null_mut(),
[INFO] [stdout] 164 | |             };
[INFO] [stdout]     | |_____________^
[INFO] [stdout] ...
[INFO] [stdout] 354 |           list_del!(to_list_head_ptr!(demo2.list_head));
[INFO] [stdout]     |           --------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: for more information, visit <https://doc.rust-lang.org/book/ch15-05-interior-mutability.html>
[INFO] [stdout]     = note: `#[deny(invalid_reference_casting)]` on by default
[INFO] [stdout]     = note: this error originates in the macro `list_del` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: assigning to `&T` is undefined behavior, consider using an `UnsafeCell`
[INFO] [stdout]    --> src/lib.rs:161:14
[INFO] [stdout]     |
[INFO] [stdout] 161 |               *$entry = ListHead {
[INFO] [stdout]     |  ______________^
[INFO] [stdout] 162 | |                 prev: core::ptr::null_mut(),
[INFO] [stdout] 163 | |                 next: core::ptr::null_mut(),
[INFO] [stdout] 164 | |             };
[INFO] [stdout]     | |_____________^
[INFO] [stdout] ...
[INFO] [stdout] 361 |           list_del!(to_list_head_ptr!(demo1.list_head));
[INFO] [stdout]     |           --------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: for more information, visit <https://doc.rust-lang.org/book/ch15-05-interior-mutability.html>
[INFO] [stdout]     = note: this error originates in the macro `list_del` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `doubly-linked-list` (lib test) due to 3 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "b0111e45cd57760b1d16d688ed6fbf956730c32753cd223ceea8fdd298e8ec4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0111e45cd57760b1d16d688ed6fbf956730c32753cd223ceea8fdd298e8ec4a", kill_on_drop: false }`
[INFO] [stdout] b0111e45cd57760b1d16d688ed6fbf956730c32753cd223ceea8fdd298e8ec4a
