[INFO] fetching crate rtt-target 0.6.1... [INFO] testing rtt-target-0.6.1 against master#cdb45c87e2cd43495379f7e867e3cc15dcee9f93 for pr-145838-1 [INFO] extracting crate rtt-target 0.6.1 into /workspace/builds/worker-4-tc1/source [INFO] started tweaking crates.io crate rtt-target 0.6.1 [INFO] finished tweaking crates.io crate rtt-target 0.6.1 [INFO] tweaked toml for crates.io crate rtt-target 0.6.1 written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate rtt-target 0.6.1 on toolchain cdb45c87e2cd43495379f7e867e3cc15dcee9f93 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "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" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Updating crates.io index [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Locking 18 packages to latest compatible versions [INFO] [stderr] Adding defmt v0.3.100 (available: v1.0.1) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 2a8ccaa50c3d832e75c26b2be20545a6a27e66bfa620217273a4990999af5d79 [INFO] running `Command { std: "docker" "start" "-a" "2a8ccaa50c3d832e75c26b2be20545a6a27e66bfa620217273a4990999af5d79", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "2a8ccaa50c3d832e75c26b2be20545a6a27e66bfa620217273a4990999af5d79", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2a8ccaa50c3d832e75c26b2be20545a6a27e66bfa620217273a4990999af5d79", kill_on_drop: false }` [INFO] [stdout] 2a8ccaa50c3d832e75c26b2be20545a6a27e66bfa620217273a4990999af5d79 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] f67305c6b381f9fc70a1ea4c5c6834bcebb9b3976e30f894b58cdd6d2a73a14a [INFO] running `Command { std: "docker" "start" "-a" "f67305c6b381f9fc70a1ea4c5c6834bcebb9b3976e30f894b58cdd6d2a73a14a", kill_on_drop: false }` [INFO] [stderr] Compiling portable-atomic v1.11.1 [INFO] [stderr] Compiling critical-section v1.2.0 [INFO] [stderr] Compiling ufmt-write v0.1.0 [INFO] [stderr] Compiling rtt-target v0.6.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/lib.rs:228:14 [INFO] [stdout] | [INFO] [stdout] 228 | pub fn u(&mut self) -> uWriter { [INFO] [stdout] | ^^^^^^^^^ ^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 228 | pub fn u(&mut self) -> uWriter<'_> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/lib.rs:397:18 [INFO] [stdout] | [INFO] [stdout] 397 | pub fn write(&mut self, number: u8) -> TerminalWriter { [INFO] [stdout] | ^^^^^^^^^ ^^^^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 397 | pub fn write(&mut self, number: u8) -> TerminalWriter<'_> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: implicit autoref creates a reference to the dereference of a raw pointer [INFO] [stdout] --> src/rtt.rs:66:45 [INFO] [stdout] | [INFO] [stdout] 66 | ptr::write_volatile(&mut self.size, (*buffer).len()); [INFO] [stdout] | ^^------^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | this raw pointer has type `*mut [u8]` [INFO] [stdout] | [INFO] [stdout] = note: creating a reference requires the pointer target to be valid and imposes aliasing requirements [INFO] [stdout] note: autoref is being applied to this expression, resulting in: `&[u8]` [INFO] [stdout] --> src/rtt.rs:66:45 [INFO] [stdout] | [INFO] [stdout] 66 | ptr::write_volatile(&mut self.size, (*buffer).len()); [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] note: method calls to `len` require a reference [INFO] [stdout] --> /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/core/src/slice/mod.rs:114:5 [INFO] [stdout] = note: `#[deny(dangerous_implicit_autorefs)]` on by default [INFO] [stdout] help: try using a raw pointer method instead; or if this reference is intentional, make it explicit [INFO] [stdout] | [INFO] [stdout] 66 | ptr::write_volatile(&mut self.size, (&(*buffer)).len()); [INFO] [stdout] | ++ + [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `rtt-target` (lib) due to 1 previous error; 2 warnings emitted [INFO] running `Command { std: "docker" "inspect" "f67305c6b381f9fc70a1ea4c5c6834bcebb9b3976e30f894b58cdd6d2a73a14a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f67305c6b381f9fc70a1ea4c5c6834bcebb9b3976e30f894b58cdd6d2a73a14a", kill_on_drop: false }` [INFO] [stdout] f67305c6b381f9fc70a1ea4c5c6834bcebb9b3976e30f894b58cdd6d2a73a14a