[INFO] fetching crate Pointers_Study_With_Core_Concepts 0.1.0... [INFO] checking Pointers_Study_With_Core_Concepts-0.1.0 against master#8c32e313cccf7df531e2d49ffb8227bb92304aee for pr-145608-1 [INFO] extracting crate Pointers_Study_With_Core_Concepts 0.1.0 into /workspace/builds/worker-5-tc1/source [INFO] started tweaking crates.io crate Pointers_Study_With_Core_Concepts 0.1.0 [INFO] finished tweaking crates.io crate Pointers_Study_With_Core_Concepts 0.1.0 [INFO] tweaked toml for crates.io crate Pointers_Study_With_Core_Concepts 0.1.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate Pointers_Study_With_Core_Concepts 0.1.0 on toolchain 8c32e313cccf7df531e2d49ffb8227bb92304aee [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "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" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] b2fbef4057b45aecb873ce2f4a103de06ba367db6c165d7a2c760705ec76cade [INFO] running `Command { std: "docker" "start" "-a" "b2fbef4057b45aecb873ce2f4a103de06ba367db6c165d7a2c760705ec76cade", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "b2fbef4057b45aecb873ce2f4a103de06ba367db6c165d7a2c760705ec76cade", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b2fbef4057b45aecb873ce2f4a103de06ba367db6c165d7a2c760705ec76cade", kill_on_drop: false }` [INFO] [stdout] b2fbef4057b45aecb873ce2f4a103de06ba367db6c165d7a2c760705ec76cade [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 8621bbd07d5e078f3c095df8f80b53a61584691456d5ac1247f0c68e73757627 [INFO] running `Command { std: "docker" "start" "-a" "8621bbd07d5e078f3c095df8f80b53a61584691456d5ac1247f0c68e73757627", kill_on_drop: false }` [INFO] [stderr] Checking Pointers_Study_With_Core_Concepts v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/rc.rs:81:13 [INFO] [stdout] | [INFO] [stdout] 81 | drop(inner); [INFO] [stdout] | ^^^^^-----^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&RcInner` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dropping_references)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 81 - drop(inner); [INFO] [stdout] 81 + let _ = inner; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `Box::::from_raw` that must be used [INFO] [stdout] --> src/rc.rs:84:22 [INFO] [stdout] | [INFO] [stdout] 84 | unsafe { Box::from_raw(self.inner.as_ptr()) }; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box` [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 84 | unsafe { let _ = Box::from_raw(self.inner.as_ptr()); }; [INFO] [stdout] | +++++++ + [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: crate `Pointers_Study_With_Core_Concepts` should have a snake case name [INFO] [stdout] | [INFO] [stdout] = help: convert the identifier to snake case: `pointers_study_with_core_concepts` [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/rc.rs:81:13 [INFO] [stdout] | [INFO] [stdout] 81 | drop(inner); [INFO] [stdout] | ^^^^^-----^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&RcInner` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dropping_references)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 81 - drop(inner); [INFO] [stdout] 81 + let _ = inner; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `Box::::from_raw` that must be used [INFO] [stdout] --> src/rc.rs:84:22 [INFO] [stdout] | [INFO] [stdout] 84 | unsafe { Box::from_raw(self.inner.as_ptr()) }; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box` [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 84 | unsafe { let _ = Box::from_raw(self.inner.as_ptr()); }; [INFO] [stdout] | +++++++ + [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.15s [INFO] running `Command { std: "docker" "inspect" "8621bbd07d5e078f3c095df8f80b53a61584691456d5ac1247f0c68e73757627", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8621bbd07d5e078f3c095df8f80b53a61584691456d5ac1247f0c68e73757627", kill_on_drop: false }` [INFO] [stdout] 8621bbd07d5e078f3c095df8f80b53a61584691456d5ac1247f0c68e73757627