[INFO] fetching crate virtual-buffer 1.0.3...
[INFO] building virtual-buffer-1.0.3 against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237-1
[INFO] extracting crate virtual-buffer 1.0.3 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate virtual-buffer 1.0.3
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate virtual-buffer 1.0.3
[INFO] tweaked toml for crates.io crate virtual-buffer 1.0.3 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate virtual-buffer 1.0.3 on toolchain d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate virtual-buffer 1.0.3 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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4f99acf3c69a8a9e098b8b6c00659c05fe580d4ea162379800ba869001d739d0
[INFO] running `Command { std: "docker" "start" "-a" "4f99acf3c69a8a9e098b8b6c00659c05fe580d4ea162379800ba869001d739d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4f99acf3c69a8a9e098b8b6c00659c05fe580d4ea162379800ba869001d739d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f99acf3c69a8a9e098b8b6c00659c05fe580d4ea162379800ba869001d739d0", kill_on_drop: false }`
[INFO] [stdout] 4f99acf3c69a8a9e098b8b6c00659c05fe580d4ea162379800ba869001d739d0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 762cd3d79060b2bb495a9c3a84ebf4eb76ccb77f908e617f5ec52a16362c936f
[INFO] running `Command { std: "docker" "start" "-a" "762cd3d79060b2bb495a9c3a84ebf4eb76ccb77f908e617f5ec52a16362c936f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.169
[INFO] [stderr]    Compiling virtual-buffer v1.0.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: transmuting an integer to a pointer creates a pointer without provenance
[INFO] [stdout]    --> src/lib.rs:923:14
[INFO] [stdout]     |
[INFO] [stdout] 923 |     unsafe { mem::transmute::<usize, *mut u8>(addr) }
[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 <https://doc.rust-lang.org/std/mem/fn.transmute.html#transmutation-between-pointers-and-integers>
[INFO] [stdout]     = help: for more information about exposed provenance, see <https://doc.rust-lang.org/std/ptr/index.html#exposed-provenance>
[INFO] [stdout]     = note: `#[warn(integer_to_ptr_transmutes)]` on by default
[INFO] [stdout] help: use `std::ptr::with_exposed_provenance_mut` instead to use a previously exposed provenance
[INFO] [stdout]     |
[INFO] [stdout] 923 -     unsafe { mem::transmute::<usize, *mut u8>(addr) }
[INFO] [stdout] 923 +     unsafe { std::ptr::with_exposed_provenance_mut::<u8>(addr) }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.66s
[INFO] running `Command { std: "docker" "inspect" "762cd3d79060b2bb495a9c3a84ebf4eb76ccb77f908e617f5ec52a16362c936f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "762cd3d79060b2bb495a9c3a84ebf4eb76ccb77f908e617f5ec52a16362c936f", kill_on_drop: false }`
[INFO] [stdout] 762cd3d79060b2bb495a9c3a84ebf4eb76ccb77f908e617f5ec52a16362c936f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3e97751bb4dfb9e54420560317a3a718ccb82ec19fe979d7dca2f39e6649e4cf
[INFO] running `Command { std: "docker" "start" "-a" "3e97751bb4dfb9e54420560317a3a718ccb82ec19fe979d7dca2f39e6649e4cf", kill_on_drop: false }`
[INFO] [stdout] warning: transmuting an integer to a pointer creates a pointer without provenance
[INFO] [stdout]    --> src/lib.rs:923:14
[INFO] [stdout]     |
[INFO] [stdout] 923 |     unsafe { mem::transmute::<usize, *mut u8>(addr) }
[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 <https://doc.rust-lang.org/std/mem/fn.transmute.html#transmutation-between-pointers-and-integers>
[INFO] [stdout]     = help: for more information about exposed provenance, see <https://doc.rust-lang.org/std/ptr/index.html#exposed-provenance>
[INFO] [stdout]     = note: `#[warn(integer_to_ptr_transmutes)]` on by default
[INFO] [stdout] help: use `std::ptr::with_exposed_provenance_mut` instead to use a previously exposed provenance
[INFO] [stdout]     |
[INFO] [stdout] 923 -     unsafe { mem::transmute::<usize, *mut u8>(addr) }
[INFO] [stdout] 923 +     unsafe { std::ptr::with_exposed_provenance_mut::<u8>(addr) }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling virtual-buffer v1.0.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: transmuting an integer to a pointer creates a pointer without provenance
[INFO] [stdout]    --> src/lib.rs:923:14
[INFO] [stdout]     |
[INFO] [stdout] 923 |     unsafe { mem::transmute::<usize, *mut u8>(addr) }
[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 <https://doc.rust-lang.org/std/mem/fn.transmute.html#transmutation-between-pointers-and-integers>
[INFO] [stdout]     = help: for more information about exposed provenance, see <https://doc.rust-lang.org/std/ptr/index.html#exposed-provenance>
[INFO] [stdout]     = note: `#[warn(integer_to_ptr_transmutes)]` on by default
[INFO] [stdout] help: use `std::ptr::with_exposed_provenance_mut` instead to use a previously exposed provenance
[INFO] [stdout]     |
[INFO] [stdout] 923 -     unsafe { mem::transmute::<usize, *mut u8>(addr) }
[INFO] [stdout] 923 +     unsafe { std::ptr::with_exposed_provenance_mut::<u8>(addr) }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.83s
[INFO] running `Command { std: "docker" "inspect" "3e97751bb4dfb9e54420560317a3a718ccb82ec19fe979d7dca2f39e6649e4cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e97751bb4dfb9e54420560317a3a718ccb82ec19fe979d7dca2f39e6649e4cf", kill_on_drop: false }`
[INFO] [stdout] 3e97751bb4dfb9e54420560317a3a718ccb82ec19fe979d7dca2f39e6649e4cf
