[INFO] fetching crate rcc4r 0.1.0...
[INFO] checking rcc4r-0.1.0 against try#b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8 for pr-78363
[INFO] extracting crate rcc4r 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate rcc4r 0.1.0 on toolchain b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rcc4r 0.1.0
[INFO] finished tweaking crates.io crate rcc4r 0.1.0
[INFO] tweaked toml for crates.io crate rcc4r 0.1.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate rcc4r 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 73c9f04f90864ecb4485cb33b02877460686930324944d5b117bbea5490409e1
[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" "73c9f04f90864ecb4485cb33b02877460686930324944d5b117bbea5490409e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "73c9f04f90864ecb4485cb33b02877460686930324944d5b117bbea5490409e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "73c9f04f90864ecb4485cb33b02877460686930324944d5b117bbea5490409e1", kill_on_drop: false }`
[INFO] [stdout] 73c9f04f90864ecb4485cb33b02877460686930324944d5b117bbea5490409e1
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8f5247ac9920d66671e55d6ce707d4a83b1b46a5873bdd8cc3cabb7caffe68ea
[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" "8f5247ac9920d66671e55d6ce707d4a83b1b46a5873bdd8cc3cabb7caffe68ea", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]     Checking rcc4r v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0599]: no method named `wrapping_offset_from` found for raw pointer `*mut i8` in the current scope
[INFO] [stdout]    --> src/main.rs:137:79
[INFO] [stdout]     |
[INFO] [stdout] 137 |                 printf(b"%d: %.*s\x00" as *const u8 as *const c_char, line, p.wrapping_offset_from(lp) as ssize_t, lp);
[INFO] [stdout]     |                                                                               ^^^^^^^^^^^^^^^^^^^^ help: there is an associated function with a similar name: `wrapping_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[E0599]: no method named `wrapping_offset_from` found for raw pointer `*mut i8` in the current scope
[INFO] [stdout]    --> src/main.rs:164:41
[INFO] [stdout]     |
[INFO] [stdout] 164 |             tk = (tk << 6 as c_int) + p.wrapping_offset_from(pp) as ssize_t;
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^^^^^^^ help: there is an associated function with a similar name: `wrapping_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[E0599]: no method named `wrapping_offset_from` found for raw pointer `*mut i8` in the current scope
[INFO] [stdout]    --> src/main.rs:167:148
[INFO] [stdout]     |
[INFO] [stdout] 167 | ... *const c_void, p.wrapping_offset_from(pp) as ssize_t as size_t) == 0 {
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^ help: there is an associated function with a similar name: `wrapping_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[E0599]: no method named `wrapping_offset_from` found for raw pointer `*mut i8` in the current scope
[INFO] [stdout]    --> src/main.rs:137:79
[INFO] [stdout]     |
[INFO] [stdout] 137 |                 printf(b"%d: %.*s\x00" as *const u8 as *const c_char, line, p.wrapping_offset_from(lp) as ssize_t, lp);
[INFO] [stdout]     |                                                                               ^^^^^^^^^^^^^^^^^^^^ help: there is an associated function with a similar name: `wrapping_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[E0599]: no method named `wrapping_offset_from` found for raw pointer `*mut i8` in the current scope
[INFO] [stdout]    --> src/main.rs:164:41
[INFO] [stdout]     |
[INFO] [stdout] 164 |             tk = (tk << 6 as c_int) + p.wrapping_offset_from(pp) as ssize_t;
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^^^^^^^ help: there is an associated function with a similar name: `wrapping_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[E0599]: no method named `wrapping_offset_from` found for raw pointer `*mut i8` in the current scope
[INFO] [stdout]    --> src/main.rs:167:148
[INFO] [stdout]     |
[INFO] [stdout] 167 | ... *const c_void, p.wrapping_offset_from(pp) as ssize_t as size_t) == 0 {
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^ help: there is an associated function with a similar name: `wrapping_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] [stderr] error: could not compile `rcc4r`
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[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: aborting due to 3 previous errors
[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" "8f5247ac9920d66671e55d6ce707d4a83b1b46a5873bdd8cc3cabb7caffe68ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f5247ac9920d66671e55d6ce707d4a83b1b46a5873bdd8cc3cabb7caffe68ea", kill_on_drop: false }`
[INFO] [stdout] 8f5247ac9920d66671e55d6ce707d4a83b1b46a5873bdd8cc3cabb7caffe68ea