[INFO] fetching crate rsjs 0.1.2...
[INFO] checking rsjs-0.1.2 against master#836c31742687ba4e2f857b5b698e1e9e6b67619c for pr-81789
[INFO] extracting crate rsjs 0.1.2 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate rsjs 0.1.2 on toolchain 836c31742687ba4e2f857b5b698e1e9e6b67619c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rsjs 0.1.2
[INFO] finished tweaking crates.io crate rsjs 0.1.2
[INFO] tweaked toml for crates.io crate rsjs 0.1.2 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 0f00f702e478d6ac6d6498ac95e70570b3ef81d38e362439893cb0f2506bc691
[INFO] running `Command { std: "docker" "start" "-a" "0f00f702e478d6ac6d6498ac95e70570b3ef81d38e362439893cb0f2506bc691", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0f00f702e478d6ac6d6498ac95e70570b3ef81d38e362439893cb0f2506bc691", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f00f702e478d6ac6d6498ac95e70570b3ef81d38e362439893cb0f2506bc691", kill_on_drop: false }`
[INFO] [stdout] 0f00f702e478d6ac6d6498ac95e70570b3ef81d38e362439893cb0f2506bc691
[INFO] running `Command { std: "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" "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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 487045dd913290ca12334c7c5cc1bcc6b818e07cd4a47ed6116a1615ec53f8e3
[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" "487045dd913290ca12334c7c5cc1bcc6b818e07cd4a47ed6116a1615ec53f8e3", kill_on_drop: false }`
[INFO] [stderr]    Compiling rsjs v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0599]: no method named `offset_to` found for raw pointer `*const u16` in the current scope
[INFO] [stdout]    --> src/lib.rs:424:52
[INFO] [stdout]     |
[INFO] [stdout] 424 |         let data_ptr_as_isize = ptr::null::<u16>().offset_to(data.as_ptr()).unwrap_or(0) * 2;
[INFO] [stdout]     |                                                    ^^^^^^^^^ help: there is an associated function with a similar name: `offset`
[INFO] [stdout]     |
[INFO] [stdout]     = note: try using `<*const T>::as_ref()` to get a reference to the type behind the pointer: https://doc.rust-lang.org/std/primitive.pointer.html#method.as_ref
[INFO] [stdout]     = note: using `<*const T>::as_ref()` on a pointer which is unaligned or points to invalid or uninitialized memory is undefined behavior
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rsjs`
[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] [stdout] error[E0599]: no method named `offset_to` found for raw pointer `*const u16` in the current scope
[INFO] [stdout]    --> src/lib.rs:424:52
[INFO] [stdout]     |
[INFO] [stdout] 424 |         let data_ptr_as_isize = ptr::null::<u16>().offset_to(data.as_ptr()).unwrap_or(0) * 2;
[INFO] [stdout]     |                                                    ^^^^^^^^^ help: there is an associated function with a similar name: `offset`
[INFO] [stdout]     |
[INFO] [stdout]     = note: try using `<*const T>::as_ref()` to get a reference to the type behind the pointer: https://doc.rust-lang.org/std/primitive.pointer.html#method.as_ref
[INFO] [stdout]     = note: using `<*const T>::as_ref()` on a pointer which is unaligned or points to invalid or uninitialized memory is undefined behavior
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "487045dd913290ca12334c7c5cc1bcc6b818e07cd4a47ed6116a1615ec53f8e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "487045dd913290ca12334c7c5cc1bcc6b818e07cd4a47ed6116a1615ec53f8e3", kill_on_drop: false }`
[INFO] [stdout] 487045dd913290ca12334c7c5cc1bcc6b818e07cd4a47ed6116a1615ec53f8e3