[INFO] fetching crate rent_vec 0.1.0...
[INFO] checking rent_vec-0.1.0 against master#39cb3386ddc6c71657418be28dbb3987eea4aa4b for pr-133536
[INFO] extracting crate rent_vec 0.1.0 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate rent_vec 0.1.0 on toolchain 39cb3386ddc6c71657418be28dbb3987eea4aa4b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+39cb3386ddc6c71657418be28dbb3987eea4aa4b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rent_vec 0.1.0
[INFO] finished tweaking crates.io crate rent_vec 0.1.0
[INFO] tweaked toml for crates.io crate rent_vec 0.1.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+39cb3386ddc6c71657418be28dbb3987eea4aa4b" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+39cb3386ddc6c71657418be28dbb3987eea4aa4b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+39cb3386ddc6c71657418be28dbb3987eea4aa4b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 11791f9e94a9dc291d5c7e6862851d65217c2a17b9071c4cc15d04ab59ca0c4b
[INFO] running `Command { std: "docker" "start" "-a" "11791f9e94a9dc291d5c7e6862851d65217c2a17b9071c4cc15d04ab59ca0c4b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "11791f9e94a9dc291d5c7e6862851d65217c2a17b9071c4cc15d04ab59ca0c4b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11791f9e94a9dc291d5c7e6862851d65217c2a17b9071c4cc15d04ab59ca0c4b", kill_on_drop: false }`
[INFO] [stdout] 11791f9e94a9dc291d5c7e6862851d65217c2a17b9071c4cc15d04ab59ca0c4b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+39cb3386ddc6c71657418be28dbb3987eea4aa4b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 63b1222ac832b0e64dfa793c7026e9aa27ef31ab3f53acafabe8c4fd818814e3
[INFO] running `Command { std: "docker" "start" "-a" "63b1222ac832b0e64dfa793c7026e9aa27ef31ab3f53acafabe8c4fd818814e3", kill_on_drop: false }`
[INFO] [stderr]     Checking rent_vec v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: assigning to `&T` is undefined behavior, consider using an `UnsafeCell`
[INFO] [stdout]    --> src/lib.rs:115:7
[INFO] [stdout]     |
[INFO] [stdout] 114 |                         let item = item as *const Entry<T> as *mut Entry<T>;
[INFO] [stdout]     |                                    ---------------------------------------- casting happend here
[INFO] [stdout] 115 |                         *item = Entry::Empty
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: for more information, visit <https://doc.rust-lang.org/book/ch15-05-interior-mutability.html>
[INFO] [stdout]     = note: even for types with interior mutability, the only legal way to obtain a mutable pointer from a shared reference is through `UnsafeCell::get`
[INFO] [stdout]     = note: `#[deny(invalid_reference_casting)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: assigning to `&T` is undefined behavior, consider using an `UnsafeCell`
[INFO] [stdout]    --> src/lib.rs:115:7
[INFO] [stdout]     |
[INFO] [stdout] 114 |                         let item = item as *const Entry<T> as *mut Entry<T>;
[INFO] [stdout]     |                                    ---------------------------------------- casting happend here
[INFO] [stdout] 115 |                         *item = Entry::Empty
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: for more information, visit <https://doc.rust-lang.org/book/ch15-05-interior-mutability.html>
[INFO] [stdout]     = note: even for types with interior mutability, the only legal way to obtain a mutable pointer from a shared reference is through `UnsafeCell::get`
[INFO] [stdout]     = note: `#[deny(invalid_reference_casting)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rent_vec` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `rent_vec` (lib test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "63b1222ac832b0e64dfa793c7026e9aa27ef31ab3f53acafabe8c4fd818814e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63b1222ac832b0e64dfa793c7026e9aa27ef31ab3f53acafabe8c4fd818814e3", kill_on_drop: false }`
[INFO] [stdout] 63b1222ac832b0e64dfa793c7026e9aa27ef31ab3f53acafabe8c4fd818814e3
