[INFO] cloning repository https://github.com/iwanders/playground-writes-to-protected-page [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/iwanders/playground-writes-to-protected-page" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiwanders%2Fplayground-writes-to-protected-page", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiwanders%2Fplayground-writes-to-protected-page'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 8e5e955a1260c65f1c9c02e2c115aa29d9be4797 [INFO] testing iwanders/playground-writes-to-protected-page against master#caccb4d0368bd918ef6668af8e13834d07040417 for pr-146098-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiwanders%2Fplayground-writes-to-protected-page" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/iwanders/playground-writes-to-protected-page [INFO] finished tweaking git repo https://github.com/iwanders/playground-writes-to-protected-page [INFO] tweaked toml for git repo https://github.com/iwanders/playground-writes-to-protected-page written to /workspace/builds/worker-2-tc1/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/iwanders/playground-writes-to-protected-page on toolchain caccb4d0368bd918ef6668af8e13834d07040417 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/iwanders/playground-writes-to-protected-page already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 7e86ec5cf2fdfb0961d94d569d3d09f2b271c07106b0e247d589b0b8d16fb5df [INFO] running `Command { std: "docker" "start" "-a" "7e86ec5cf2fdfb0961d94d569d3d09f2b271c07106b0e247d589b0b8d16fb5df", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "7e86ec5cf2fdfb0961d94d569d3d09f2b271c07106b0e247d589b0b8d16fb5df", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7e86ec5cf2fdfb0961d94d569d3d09f2b271c07106b0e247d589b0b8d16fb5df", kill_on_drop: false }` [INFO] [stdout] 7e86ec5cf2fdfb0961d94d569d3d09f2b271c07106b0e247d589b0b8d16fb5df [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 9a05a3415dfebc0520c72444f92b26e561ac4e9eddae3a1e53d6685906811cf7 [INFO] running `Command { std: "docker" "start" "-a" "9a05a3415dfebc0520c72444f92b26e561ac4e9eddae3a1e53d6685906811cf7", kill_on_drop: false }` [INFO] [stderr] Compiling track_writes v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::mem::MaybeUninit` [INFO] [stdout] --> src/main.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use std::mem::MaybeUninit; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around assigned value [INFO] [stdout] --> src/main.rs:118:33 [INFO] [stdout] | [INFO] [stdout] 118 | dest += (displacement[1] as usize * 255); [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 118 - dest += (displacement[1] as usize * 255); [INFO] [stdout] 118 + dest += displacement[1] as usize * 255; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around assigned value [INFO] [stdout] --> src/main.rs:119:33 [INFO] [stdout] | [INFO] [stdout] 119 | dest += (displacement[2] as usize * 255 * 255); [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 119 - dest += (displacement[2] as usize * 255 * 255); [INFO] [stdout] 119 + dest += displacement[2] as usize * 255 * 255; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around assigned value [INFO] [stdout] --> src/main.rs:120:33 [INFO] [stdout] | [INFO] [stdout] 120 | dest += (displacement[3] as usize * 255 * 255 * 255); [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 120 - dest += (displacement[3] as usize * 255 * 255 * 255); [INFO] [stdout] 120 + dest += displacement[3] as usize * 255 * 255 * 255; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `sig` [INFO] [stdout] --> src/main.rs:10:30 [INFO] [stdout] | [INFO] [stdout] 10 | extern "C" fn sigsev_handler(sig: c_int, info: *mut libc::siginfo_t, context: *mut c_void) { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_sig` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:29:13 [INFO] [stdout] | [INFO] [stdout] 29 | let mut ucontext = std::mem::transmute::<_, *mut libc::ucontext_t>(context); [INFO] [stdout] | ----^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `r` [INFO] [stdout] --> src/main.rs:186:9 [INFO] [stdout] | [INFO] [stdout] 186 | let r = libc::sigaction(libc::SIGSEGV, &action, std::ptr::null_mut()); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_r` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `r` [INFO] [stdout] --> src/main.rs:206:9 [INFO] [stdout] | [INFO] [stdout] 206 | let r = libc::mprotect(addr, PAGE_SIZE, libc::PROT_READ | libc::PROT_WRITE); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_r` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `r` [INFO] [stdout] --> src/main.rs:215:9 [INFO] [stdout] | [INFO] [stdout] 215 | let r = libc::mprotect(addr, PAGE_SIZE, libc::PROT_READ); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_r` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: transmuting an integer to a pointer creates a pointer without provenance [INFO] [stdout] --> src/main.rs:49:13 [INFO] [stdout] | [INFO] [stdout] 49 | std::mem::transmute::<_, *const u8>(mcontext.gregs[libc::REG_RIP as usize]); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this is dangerous because dereferencing the resulting pointer is undefined behavior [INFO] [stdout] = note: exposed provenance semantics can be used to create a pointer based on some previously exposed provenance [INFO] [stdout] = help: if you truly mean to create a pointer without provenance, use `std::ptr::without_provenance_mut` [INFO] [stdout] = help: for more information about transmute, see [INFO] [stdout] = help: for more information about exposed provenance, see [INFO] [stdout] = note: `#[warn(integer_to_ptr_transmutes)]` on by default [INFO] [stdout] help: use `std::ptr::with_exposed_provenance` instead to use a previously exposed provenance [INFO] [stdout] | [INFO] [stdout] 49 - std::mem::transmute::<_, *const u8>(mcontext.gregs[libc::REG_RIP as usize]); [INFO] [stdout] 49 + std::ptr::with_exposed_provenance::(mcontext.gregs[libc::REG_RIP as usize]); [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: transmuting an integer to a pointer creates a pointer without provenance [INFO] [stdout] --> src/main.rs:136:18 [INFO] [stdout] | [INFO] [stdout] 136 | *std::mem::transmute::<_, *mut u8>(dest) = value; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this is dangerous because dereferencing the resulting pointer is undefined behavior [INFO] [stdout] = note: exposed provenance semantics can be used to create a pointer based on some previously exposed provenance [INFO] [stdout] = help: if you truly mean to create a pointer without provenance, use `std::ptr::without_provenance_mut` [INFO] [stdout] = help: for more information about transmute, see [INFO] [stdout] = help: for more information about exposed provenance, see [INFO] [stdout] help: use `std::ptr::with_exposed_provenance_mut` instead to use a previously exposed provenance [INFO] [stdout] | [INFO] [stdout] 136 - *std::mem::transmute::<_, *mut u8>(dest) = value; [INFO] [stdout] 136 + *std::ptr::with_exposed_provenance_mut::(dest) = value; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: transmuting an integer to a pointer creates a pointer without provenance [INFO] [stdout] --> src/main.rs:156:31 [INFO] [stdout] | [INFO] [stdout] 156 | let dest_u8 = std::mem::transmute::<_, *mut u8>(dest); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this is dangerous because dereferencing the resulting pointer is undefined behavior [INFO] [stdout] = note: exposed provenance semantics can be used to create a pointer based on some previously exposed provenance [INFO] [stdout] = help: if you truly mean to create a pointer without provenance, use `std::ptr::without_provenance_mut` [INFO] [stdout] = help: for more information about transmute, see [INFO] [stdout] = help: for more information about exposed provenance, see [INFO] [stdout] help: use `std::ptr::with_exposed_provenance_mut` instead to use a previously exposed provenance [INFO] [stdout] | [INFO] [stdout] 156 - let dest_u8 = std::mem::transmute::<_, *mut u8>(dest); [INFO] [stdout] 156 + let dest_u8 = std::ptr::with_exposed_provenance_mut::(dest); [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: transmuting an integer to a pointer creates a pointer without provenance [INFO] [stdout] --> src/main.rs:204:16 [INFO] [stdout] | [INFO] [stdout] 204 | let addr = std::mem::transmute::<_, _>(address); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this is dangerous because dereferencing the resulting pointer is undefined behavior [INFO] [stdout] = note: exposed provenance semantics can be used to create a pointer based on some previously exposed provenance [INFO] [stdout] = help: if you truly mean to create a pointer without provenance, use `std::ptr::without_provenance_mut` [INFO] [stdout] = help: for more information about transmute, see [INFO] [stdout] = help: for more information about exposed provenance, see [INFO] [stdout] help: use `std::ptr::with_exposed_provenance_mut` instead to use a previously exposed provenance [INFO] [stdout] | [INFO] [stdout] 204 - let addr = std::mem::transmute::<_, _>(address); [INFO] [stdout] 204 + let addr = std::ptr::with_exposed_provenance_mut::(address); [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: transmuting an integer to a pointer creates a pointer without provenance [INFO] [stdout] --> src/main.rs:213:16 [INFO] [stdout] | [INFO] [stdout] 213 | let addr = std::mem::transmute::<_, _>(address); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this is dangerous because dereferencing the resulting pointer is undefined behavior [INFO] [stdout] = note: exposed provenance semantics can be used to create a pointer based on some previously exposed provenance [INFO] [stdout] = help: if you truly mean to create a pointer without provenance, use `std::ptr::without_provenance_mut` [INFO] [stdout] = help: for more information about transmute, see [INFO] [stdout] = help: for more information about exposed provenance, see [INFO] [stdout] help: use `std::ptr::with_exposed_provenance_mut` instead to use a previously exposed provenance [INFO] [stdout] | [INFO] [stdout] 213 - let addr = std::mem::transmute::<_, _>(address); [INFO] [stdout] 213 + let addr = std::ptr::with_exposed_provenance_mut::(address); [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.39s [INFO] running `Command { std: "docker" "inspect" "9a05a3415dfebc0520c72444f92b26e561ac4e9eddae3a1e53d6685906811cf7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9a05a3415dfebc0520c72444f92b26e561ac4e9eddae3a1e53d6685906811cf7", kill_on_drop: false }` [INFO] [stdout] 9a05a3415dfebc0520c72444f92b26e561ac4e9eddae3a1e53d6685906811cf7 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 063abc6ea21da98b4ffe5be870c656678b03cf53443d2545aa1c0bbe4d661024 [INFO] running `Command { std: "docker" "start" "-a" "063abc6ea21da98b4ffe5be870c656678b03cf53443d2545aa1c0bbe4d661024", kill_on_drop: false }` [INFO] [stderr] Compiling track_writes v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::mem::MaybeUninit` [INFO] [stdout] --> src/main.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use std::mem::MaybeUninit; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around assigned value [INFO] [stdout] --> src/main.rs:118:33 [INFO] [stdout] | [INFO] [stdout] 118 | dest += (displacement[1] as usize * 255); [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 118 - dest += (displacement[1] as usize * 255); [INFO] [stdout] 118 + dest += displacement[1] as usize * 255; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around assigned value [INFO] [stdout] --> src/main.rs:119:33 [INFO] [stdout] | [INFO] [stdout] 119 | dest += (displacement[2] as usize * 255 * 255); [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 119 - dest += (displacement[2] as usize * 255 * 255); [INFO] [stdout] 119 + dest += displacement[2] as usize * 255 * 255; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around assigned value [INFO] [stdout] --> src/main.rs:120:33 [INFO] [stdout] | [INFO] [stdout] 120 | dest += (displacement[3] as usize * 255 * 255 * 255); [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 120 - dest += (displacement[3] as usize * 255 * 255 * 255); [INFO] [stdout] 120 + dest += displacement[3] as usize * 255 * 255 * 255; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `sig` [INFO] [stdout] --> src/main.rs:10:30 [INFO] [stdout] | [INFO] [stdout] 10 | extern "C" fn sigsev_handler(sig: c_int, info: *mut libc::siginfo_t, context: *mut c_void) { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_sig` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:29:13 [INFO] [stdout] | [INFO] [stdout] 29 | let mut ucontext = std::mem::transmute::<_, *mut libc::ucontext_t>(context); [INFO] [stdout] | ----^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `r` [INFO] [stdout] --> src/main.rs:186:9 [INFO] [stdout] | [INFO] [stdout] 186 | let r = libc::sigaction(libc::SIGSEGV, &action, std::ptr::null_mut()); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_r` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `r` [INFO] [stdout] --> src/main.rs:206:9 [INFO] [stdout] | [INFO] [stdout] 206 | let r = libc::mprotect(addr, PAGE_SIZE, libc::PROT_READ | libc::PROT_WRITE); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_r` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `r` [INFO] [stdout] --> src/main.rs:215:9 [INFO] [stdout] | [INFO] [stdout] 215 | let r = libc::mprotect(addr, PAGE_SIZE, libc::PROT_READ); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_r` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: transmuting an integer to a pointer creates a pointer without provenance [INFO] [stdout] --> src/main.rs:49:13 [INFO] [stdout] | [INFO] [stdout] 49 | std::mem::transmute::<_, *const u8>(mcontext.gregs[libc::REG_RIP as usize]); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this is dangerous because dereferencing the resulting pointer is undefined behavior [INFO] [stdout] = note: exposed provenance semantics can be used to create a pointer based on some previously exposed provenance [INFO] [stdout] = help: if you truly mean to create a pointer without provenance, use `std::ptr::without_provenance_mut` [INFO] [stdout] = help: for more information about transmute, see [INFO] [stdout] = help: for more information about exposed provenance, see [INFO] [stdout] = note: `#[warn(integer_to_ptr_transmutes)]` on by default [INFO] [stdout] help: use `std::ptr::with_exposed_provenance` instead to use a previously exposed provenance [INFO] [stdout] | [INFO] [stdout] 49 - std::mem::transmute::<_, *const u8>(mcontext.gregs[libc::REG_RIP as usize]); [INFO] [stdout] 49 + std::ptr::with_exposed_provenance::(mcontext.gregs[libc::REG_RIP as usize]); [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: transmuting an integer to a pointer creates a pointer without provenance [INFO] [stdout] --> src/main.rs:136:18 [INFO] [stdout] | [INFO] [stdout] 136 | *std::mem::transmute::<_, *mut u8>(dest) = value; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this is dangerous because dereferencing the resulting pointer is undefined behavior [INFO] [stdout] = note: exposed provenance semantics can be used to create a pointer based on some previously exposed provenance [INFO] [stdout] = help: if you truly mean to create a pointer without provenance, use `std::ptr::without_provenance_mut` [INFO] [stdout] = help: for more information about transmute, see [INFO] [stdout] = help: for more information about exposed provenance, see [INFO] [stdout] help: use `std::ptr::with_exposed_provenance_mut` instead to use a previously exposed provenance [INFO] [stdout] | [INFO] [stdout] 136 - *std::mem::transmute::<_, *mut u8>(dest) = value; [INFO] [stdout] 136 + *std::ptr::with_exposed_provenance_mut::(dest) = value; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: transmuting an integer to a pointer creates a pointer without provenance [INFO] [stdout] --> src/main.rs:156:31 [INFO] [stdout] | [INFO] [stdout] 156 | let dest_u8 = std::mem::transmute::<_, *mut u8>(dest); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this is dangerous because dereferencing the resulting pointer is undefined behavior [INFO] [stdout] = note: exposed provenance semantics can be used to create a pointer based on some previously exposed provenance [INFO] [stdout] = help: if you truly mean to create a pointer without provenance, use `std::ptr::without_provenance_mut` [INFO] [stdout] = help: for more information about transmute, see [INFO] [stdout] = help: for more information about exposed provenance, see [INFO] [stdout] help: use `std::ptr::with_exposed_provenance_mut` instead to use a previously exposed provenance [INFO] [stdout] | [INFO] [stdout] 156 - let dest_u8 = std::mem::transmute::<_, *mut u8>(dest); [INFO] [stdout] 156 + let dest_u8 = std::ptr::with_exposed_provenance_mut::(dest); [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: transmuting an integer to a pointer creates a pointer without provenance [INFO] [stdout] --> src/main.rs:204:16 [INFO] [stdout] | [INFO] [stdout] 204 | let addr = std::mem::transmute::<_, _>(address); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this is dangerous because dereferencing the resulting pointer is undefined behavior [INFO] [stdout] = note: exposed provenance semantics can be used to create a pointer based on some previously exposed provenance [INFO] [stdout] = help: if you truly mean to create a pointer without provenance, use `std::ptr::without_provenance_mut` [INFO] [stdout] = help: for more information about transmute, see [INFO] [stdout] = help: for more information about exposed provenance, see [INFO] [stdout] help: use `std::ptr::with_exposed_provenance_mut` instead to use a previously exposed provenance [INFO] [stdout] | [INFO] [stdout] 204 - let addr = std::mem::transmute::<_, _>(address); [INFO] [stdout] 204 + let addr = std::ptr::with_exposed_provenance_mut::(address); [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: transmuting an integer to a pointer creates a pointer without provenance [INFO] [stdout] --> src/main.rs:213:16 [INFO] [stdout] | [INFO] [stdout] 213 | let addr = std::mem::transmute::<_, _>(address); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this is dangerous because dereferencing the resulting pointer is undefined behavior [INFO] [stdout] = note: exposed provenance semantics can be used to create a pointer based on some previously exposed provenance [INFO] [stdout] = help: if you truly mean to create a pointer without provenance, use `std::ptr::without_provenance_mut` [INFO] [stdout] = help: for more information about transmute, see [INFO] [stdout] = help: for more information about exposed provenance, see [INFO] [stdout] help: use `std::ptr::with_exposed_provenance_mut` instead to use a previously exposed provenance [INFO] [stdout] | [INFO] [stdout] 213 - let addr = std::mem::transmute::<_, _>(address); [INFO] [stdout] 213 + let addr = std::ptr::with_exposed_provenance_mut::(address); [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.29s [INFO] running `Command { std: "docker" "inspect" "063abc6ea21da98b4ffe5be870c656678b03cf53443d2545aa1c0bbe4d661024", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "063abc6ea21da98b4ffe5be870c656678b03cf53443d2545aa1c0bbe4d661024", kill_on_drop: false }` [INFO] [stdout] 063abc6ea21da98b4ffe5be870c656678b03cf53443d2545aa1c0bbe4d661024 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 2c79041d71594ef9d5d780db01b09dfa39f234b21d2e85a1aefc912d3e5d6f41 [INFO] running `Command { std: "docker" "start" "-a" "2c79041d71594ef9d5d780db01b09dfa39f234b21d2e85a1aefc912d3e5d6f41", kill_on_drop: false }` [INFO] [stderr] warning: unused import: `std::mem::MaybeUninit` [INFO] [stderr] --> src/main.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 7 | use std::mem::MaybeUninit; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around assigned value [INFO] [stderr] --> src/main.rs:118:33 [INFO] [stderr] | [INFO] [stderr] 118 | dest += (displacement[1] as usize * 255); [INFO] [stderr] | ^ ^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] 118 - dest += (displacement[1] as usize * 255); [INFO] [stderr] 118 + dest += displacement[1] as usize * 255; [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around assigned value [INFO] [stderr] --> src/main.rs:119:33 [INFO] [stderr] | [INFO] [stderr] 119 | dest += (displacement[2] as usize * 255 * 255); [INFO] [stderr] | ^ ^ [INFO] [stderr] | [INFO] [stderr] help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] 119 - dest += (displacement[2] as usize * 255 * 255); [INFO] [stderr] 119 + dest += displacement[2] as usize * 255 * 255; [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around assigned value [INFO] [stderr] --> src/main.rs:120:33 [INFO] [stderr] | [INFO] [stderr] 120 | dest += (displacement[3] as usize * 255 * 255 * 255); [INFO] [stderr] | ^ ^ [INFO] [stderr] | [INFO] [stderr] help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] 120 - dest += (displacement[3] as usize * 255 * 255 * 255); [INFO] [stderr] 120 + dest += displacement[3] as usize * 255 * 255 * 255; [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: unused variable: `sig` [INFO] [stderr] --> src/main.rs:10:30 [INFO] [stderr] | [INFO] [stderr] 10 | extern "C" fn sigsev_handler(sig: c_int, info: *mut libc::siginfo_t, context: *mut c_void) { [INFO] [stderr] | ^^^ help: if this is intentional, prefix it with an underscore: `_sig` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:29:13 [INFO] [stderr] | [INFO] [stderr] 29 | let mut ucontext = std::mem::transmute::<_, *mut libc::ucontext_t>(context); [INFO] [stderr] | ----^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `r` [INFO] [stderr] --> src/main.rs:186:9 [INFO] [stderr] | [INFO] [stderr] 186 | let r = libc::sigaction(libc::SIGSEGV, &action, std::ptr::null_mut()); [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_r` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `r` [INFO] [stderr] --> src/main.rs:206:9 [INFO] [stderr] | [INFO] [stderr] 206 | let r = libc::mprotect(addr, PAGE_SIZE, libc::PROT_READ | libc::PROT_WRITE); [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_r` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `r` [INFO] [stderr] --> src/main.rs:215:9 [INFO] [stderr] | [INFO] [stderr] 215 | let r = libc::mprotect(addr, PAGE_SIZE, libc::PROT_READ); [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_r` [INFO] [stderr] [INFO] [stderr] warning: transmuting an integer to a pointer creates a pointer without provenance [INFO] [stderr] --> src/main.rs:49:13 [INFO] [stderr] | [INFO] [stderr] 49 | std::mem::transmute::<_, *const u8>(mcontext.gregs[libc::REG_RIP as usize]); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this is dangerous because dereferencing the resulting pointer is undefined behavior [INFO] [stderr] = note: exposed provenance semantics can be used to create a pointer based on some previously exposed provenance [INFO] [stderr] = help: if you truly mean to create a pointer without provenance, use `std::ptr::without_provenance_mut` [INFO] [stderr] = help: for more information about transmute, see [INFO] [stderr] = help: for more information about exposed provenance, see [INFO] [stderr] = note: `#[warn(integer_to_ptr_transmutes)]` on by default [INFO] [stderr] help: use `std::ptr::with_exposed_provenance` instead to use a previously exposed provenance [INFO] [stderr] | [INFO] [stderr] 49 - std::mem::transmute::<_, *const u8>(mcontext.gregs[libc::REG_RIP as usize]); [INFO] [stderr] 49 + std::ptr::with_exposed_provenance::(mcontext.gregs[libc::REG_RIP as usize]); [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: transmuting an integer to a pointer creates a pointer without provenance [INFO] [stderr] --> src/main.rs:136:18 [INFO] [stderr] | [INFO] [stderr] 136 | *std::mem::transmute::<_, *mut u8>(dest) = value; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this is dangerous because dereferencing the resulting pointer is undefined behavior [INFO] [stderr] = note: exposed provenance semantics can be used to create a pointer based on some previously exposed provenance [INFO] [stderr] = help: if you truly mean to create a pointer without provenance, use `std::ptr::without_provenance_mut` [INFO] [stderr] = help: for more information about transmute, see [INFO] [stderr] = help: for more information about exposed provenance, see [INFO] [stderr] help: use `std::ptr::with_exposed_provenance_mut` instead to use a previously exposed provenance [INFO] [stderr] | [INFO] [stderr] 136 - *std::mem::transmute::<_, *mut u8>(dest) = value; [INFO] [stderr] 136 + *std::ptr::with_exposed_provenance_mut::(dest) = value; [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: transmuting an integer to a pointer creates a pointer without provenance [INFO] [stderr] --> src/main.rs:156:31 [INFO] [stderr] | [INFO] [stderr] 156 | let dest_u8 = std::mem::transmute::<_, *mut u8>(dest); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this is dangerous because dereferencing the resulting pointer is undefined behavior [INFO] [stderr] = note: exposed provenance semantics can be used to create a pointer based on some previously exposed provenance [INFO] [stderr] = help: if you truly mean to create a pointer without provenance, use `std::ptr::without_provenance_mut` [INFO] [stderr] = help: for more information about transmute, see [INFO] [stderr] = help: for more information about exposed provenance, see [INFO] [stderr] help: use `std::ptr::with_exposed_provenance_mut` instead to use a previously exposed provenance [INFO] [stderr] | [INFO] [stderr] 156 - let dest_u8 = std::mem::transmute::<_, *mut u8>(dest); [INFO] [stderr] 156 + let dest_u8 = std::ptr::with_exposed_provenance_mut::(dest); [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: transmuting an integer to a pointer creates a pointer without provenance [INFO] [stderr] --> src/main.rs:204:16 [INFO] [stderr] | [INFO] [stderr] 204 | let addr = std::mem::transmute::<_, _>(address); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this is dangerous because dereferencing the resulting pointer is undefined behavior [INFO] [stderr] = note: exposed provenance semantics can be used to create a pointer based on some previously exposed provenance [INFO] [stderr] = help: if you truly mean to create a pointer without provenance, use `std::ptr::without_provenance_mut` [INFO] [stderr] = help: for more information about transmute, see [INFO] [stderr] = help: for more information about exposed provenance, see [INFO] [stderr] help: use `std::ptr::with_exposed_provenance_mut` instead to use a previously exposed provenance [INFO] [stderr] | [INFO] [stderr] 204 - let addr = std::mem::transmute::<_, _>(address); [INFO] [stderr] 204 + let addr = std::ptr::with_exposed_provenance_mut::(address); [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: transmuting an integer to a pointer creates a pointer without provenance [INFO] [stderr] --> src/main.rs:213:16 [INFO] [stderr] | [INFO] [stderr] 213 | let addr = std::mem::transmute::<_, _>(address); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this is dangerous because dereferencing the resulting pointer is undefined behavior [INFO] [stderr] = note: exposed provenance semantics can be used to create a pointer based on some previously exposed provenance [INFO] [stderr] = help: if you truly mean to create a pointer without provenance, use `std::ptr::without_provenance_mut` [INFO] [stderr] = help: for more information about transmute, see [INFO] [stderr] = help: for more information about exposed provenance, see [INFO] [stderr] help: use `std::ptr::with_exposed_provenance_mut` instead to use a previously exposed provenance [INFO] [stderr] | [INFO] [stderr] 213 - let addr = std::mem::transmute::<_, _>(address); [INFO] [stderr] 213 + let addr = std::ptr::with_exposed_provenance_mut::(address); [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: `track_writes` (bin "track_writes" test) generated 14 warnings (run `cargo fix --bin "track_writes" --tests` to apply 10 suggestions) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.07s [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/track_writes-f474c6cd3ba79bb3) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "2c79041d71594ef9d5d780db01b09dfa39f234b21d2e85a1aefc912d3e5d6f41", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2c79041d71594ef9d5d780db01b09dfa39f234b21d2e85a1aefc912d3e5d6f41", kill_on_drop: false }` [INFO] [stdout] 2c79041d71594ef9d5d780db01b09dfa39f234b21d2e85a1aefc912d3e5d6f41