[INFO] fetching crate art-tree 0.2.0... [INFO] testing art-tree-0.2.0 against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0 [INFO] extracting crate art-tree 0.2.0 into /workspace/builds/worker-1-tc1/source [INFO] started tweaking crates.io crate art-tree 0.2.0 [INFO] finished tweaking crates.io crate art-tree 0.2.0 [INFO] tweaked toml for crates.io crate art-tree 0.2.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate art-tree 0.2.0 on toolchain 8de4c7234dd9b97c9d76b58671343fdbbc9a433e [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 79 packages to latest compatible versions [INFO] [stderr] Adding criterion v0.3.6 (available: v0.6.0) [INFO] [stderr] Adding rand v0.8.5 (available: v0.9.1) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] c117a77b8b6ed1e5b90f8445b5464b03b635e37306b9f959f07ceb4e2323afcd [INFO] running `Command { std: "docker" "start" "-a" "c117a77b8b6ed1e5b90f8445b5464b03b635e37306b9f959f07ceb4e2323afcd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "c117a77b8b6ed1e5b90f8445b5464b03b635e37306b9f959f07ceb4e2323afcd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c117a77b8b6ed1e5b90f8445b5464b03b635e37306b9f959f07ceb4e2323afcd", kill_on_drop: false }` [INFO] [stdout] c117a77b8b6ed1e5b90f8445b5464b03b635e37306b9f959f07ceb4e2323afcd [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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "build" "--frozen" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }` [INFO] [stdout] 4ee5d6ed1b755c385589d3a88ef777a6796eafb5b7ad274aa79a89c1024e002a [INFO] running `Command { std: "docker" "start" "-a" "4ee5d6ed1b755c385589d3a88ef777a6796eafb5b7ad274aa79a89c1024e002a", kill_on_drop: false }` [INFO] [stderr] Compiling art-tree v0.2.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unreachable statement [INFO] [stdout] --> src/node.rs:244:9 [INFO] [stdout] | [INFO] [stdout] 241 | return Some(val); [INFO] [stdout] | ---------------- any code following this expression is unreachable [INFO] [stdout] ... [INFO] [stdout] 244 | / for i in 0..self.keys.len() { [INFO] [stdout] 245 | | // find key which uses last cell inside values array [INFO] [stdout] 246 | | if self.keys[i] == self.len as u8 { [INFO] [stdout] ... | [INFO] [stdout] 253 | | } [INFO] [stdout] | |_________^ unreachable statement [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: casting `&T` to `&mut T` is undefined behavior, even if the reference is unused, consider instead using an `UnsafeCell` [INFO] [stdout] --> src/lib.rs:290:13 [INFO] [stdout] | [INFO] [stdout] 290 | &mut *(interim as *const BoxedNode> as *mut BoxedNode>) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: for more information, visit [INFO] [stdout] = note: `#[deny(invalid_reference_casting)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary transmute [INFO] [stdout] --> src/keys.rs:100:30 [INFO] [stdout] | [INFO] [stdout] 100 | let v: u8 = unsafe { mem::transmute(*self) }; [INFO] [stdout] | --------------^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: replace this with: `i8::cast_unsigned` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unnecessary_transmutes)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary transmute [INFO] [stdout] --> src/keys.rs:117:31 [INFO] [stdout] | [INFO] [stdout] 117 | let v: u16 = unsafe { mem::transmute(*self) }; [INFO] [stdout] | --------------^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: replace this with: `i16::cast_unsigned` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary transmute [INFO] [stdout] --> src/keys.rs:127:31 [INFO] [stdout] | [INFO] [stdout] 127 | let v: u32 = unsafe { mem::transmute(*self) }; [INFO] [stdout] | --------------^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: replace this with: `i32::cast_unsigned` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary transmute [INFO] [stdout] --> src/keys.rs:137:31 [INFO] [stdout] | [INFO] [stdout] 137 | let v: u64 = unsafe { mem::transmute(*self) }; [INFO] [stdout] | --------------^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: replace this with: `i64::cast_unsigned` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary transmute [INFO] [stdout] --> src/keys.rs:147:32 [INFO] [stdout] | [INFO] [stdout] 147 | let v: u128 = unsafe { mem::transmute(*self) }; [INFO] [stdout] | --------------^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: replace this with: `i128::cast_unsigned` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the type `[Option; 256]` does not permit being left uninitialized [INFO] [stdout] --> src/node.rs:378:22 [INFO] [stdout] | [INFO] [stdout] 378 | unsafe { MaybeUninit::<[Option; 256]>::uninit().assume_init() }; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | this code causes undefined behavior when executed [INFO] [stdout] | help: use `MaybeUninit` instead, and only call `assume_init` after initialization is done [INFO] [stdout] | [INFO] [stdout] note: enums with multiple inhabited variants have to be initialized to a variant [INFO] [stdout] --> /rustc/8de4c7234dd9b97c9d76b58671343fdbbc9a433e/library/core/src/option.rs:591:1 [INFO] [stdout] = note: `#[warn(invalid_value)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/node.rs:585:17 [INFO] [stdout] | [INFO] [stdout] 585 | pub fn iter(&self) -> NodeIter { [INFO] [stdout] | ^^^^^ ----------- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 585 | pub fn iter(&self) -> NodeIter<'_, V> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `art-tree` (lib) due to 1 previous error; 8 warnings emitted [INFO] running `Command { std: "docker" "inspect" "4ee5d6ed1b755c385589d3a88ef777a6796eafb5b7ad274aa79a89c1024e002a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4ee5d6ed1b755c385589d3a88ef777a6796eafb5b7ad274aa79a89c1024e002a", kill_on_drop: false }` [INFO] [stdout] 4ee5d6ed1b755c385589d3a88ef777a6796eafb5b7ad274aa79a89c1024e002a