[INFO] fetching crate compiler_builtins 0.1.104... [INFO] checking compiler_builtins-0.1.104 against master#af4a5a13a15fa0c60e06321077ef452f769b42fd for pr-122960-2 [INFO] extracting crate compiler_builtins 0.1.104 into /workspace/builds/worker-7-tc1/source [INFO] validating manifest of crates.io crate compiler_builtins 0.1.104 on toolchain af4a5a13a15fa0c60e06321077ef452f769b42fd [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate compiler_builtins 0.1.104 [INFO] removed 0 missing examples [INFO] finished tweaking crates.io crate compiler_builtins 0.1.104 [INFO] tweaked toml for crates.io crate compiler_builtins 0.1.104 written to /workspace/builds/worker-7-tc1/source/Cargo.toml [INFO] crate crates.io crate compiler_builtins 0.1.104 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" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded cc v1.0.0 [INFO] [stderr] Downloaded rustc-std-workspace-core v1.0.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 87e4cf54cee021a062cd0192f63a1403f086d43946bc40451f7a93afc18c0761 [INFO] running `Command { std: "docker" "start" "-a" "87e4cf54cee021a062cd0192f63a1403f086d43946bc40451f7a93afc18c0761", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "87e4cf54cee021a062cd0192f63a1403f086d43946bc40451f7a93afc18c0761", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "87e4cf54cee021a062cd0192f63a1403f086d43946bc40451f7a93afc18c0761", kill_on_drop: false }` [INFO] [stdout] 87e4cf54cee021a062cd0192f63a1403f086d43946bc40451f7a93afc18c0761 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 9ff4ac957d4c39e3946a779c57142ad22093732909d34f279da1bfb04e312ed8 [INFO] running `Command { std: "docker" "start" "-a" "9ff4ac957d4c39e3946a779c57142ad22093732909d34f279da1bfb04e312ed8", kill_on_drop: false }` [INFO] [stderr] Compiling compiler_builtins v0.1.104 (/opt/rustwide/workdir) [INFO] [stdout] warning: multiple associated items are never used [INFO] [stdout] --> src/float/mod.rs:77:8 [INFO] [stdout] | [INFO] [stdout] 17 | pub(crate) trait Float: [INFO] [stdout] | ----- associated items in this trait [INFO] [stdout] ... [INFO] [stdout] 77 | fn eq_repr(self, rhs: Self) -> bool; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 80 | fn sign(self) -> bool; [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 83 | fn exp(self) -> Self::ExpInt; [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 86 | fn frac(self) -> Self::Int; [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 89 | fn imp_frac(self) -> Self::Int; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 95 | fn from_parts(sign: bool, exponent: Self::Int, significand: Self::Int) -> Self; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 101 | fn is_subnormal(self) -> bool; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `wrapping_neg` and `rotate_left` are never used [INFO] [stdout] --> src/int/mod.rs:74:8 [INFO] [stdout] | [INFO] [stdout] 16 | pub(crate) trait Int: [INFO] [stdout] | --- methods in this trait [INFO] [stdout] ... [INFO] [stdout] 74 | fn wrapping_neg(self) -> Self; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 80 | fn rotate_left(self, other: u32) -> Self; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: multiple associated items are never used [INFO] [stdout] --> src/float/mod.rs:77:8 [INFO] [stdout] | [INFO] [stdout] 17 | pub(crate) trait Float: [INFO] [stdout] | ----- associated items in this trait [INFO] [stdout] ... [INFO] [stdout] 77 | fn eq_repr(self, rhs: Self) -> bool; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 80 | fn sign(self) -> bool; [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 83 | fn exp(self) -> Self::ExpInt; [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 86 | fn frac(self) -> Self::Int; [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 89 | fn imp_frac(self) -> Self::Int; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 95 | fn from_parts(sign: bool, exponent: Self::Int, significand: Self::Int) -> Self; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 101 | fn is_subnormal(self) -> bool; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `wrapping_neg` and `rotate_left` are never used [INFO] [stdout] --> src/int/mod.rs:74:8 [INFO] [stdout] | [INFO] [stdout] 16 | pub(crate) trait Int: [INFO] [stdout] | --- methods in this trait [INFO] [stdout] ... [INFO] [stdout] 74 | fn wrapping_neg(self) -> Self; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 80 | fn rotate_left(self, other: u32) -> Self; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0463]: can't find crate for `panic_handler` [INFO] [stdout] --> examples/intrinsics.rs:17:1 [INFO] [stdout] | [INFO] [stdout] 17 | extern crate panic_handler; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ can't find crate [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: `#[panic_handler]` function required, but not found [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 2 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0463`. [INFO] [stdout] [INFO] [stderr] error: could not compile `compiler_builtins` (example "intrinsics") due to 3 previous errors [INFO] running `Command { std: "docker" "inspect" "9ff4ac957d4c39e3946a779c57142ad22093732909d34f279da1bfb04e312ed8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9ff4ac957d4c39e3946a779c57142ad22093732909d34f279da1bfb04e312ed8", kill_on_drop: false }` [INFO] [stdout] 9ff4ac957d4c39e3946a779c57142ad22093732909d34f279da1bfb04e312ed8