[INFO] fetching crate safer_owning_ref 0.5.0... [INFO] checking safer_owning_ref-0.5.0 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864 [INFO] extracting crate safer_owning_ref 0.5.0 into /workspace/builds/worker-3-tc2/source [INFO] validating manifest of crates.io crate safer_owning_ref 0.5.0 on toolchain 7014e13d5becc920d4bea3cd87942c8a13d359bf [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate safer_owning_ref 0.5.0 [INFO] finished tweaking crates.io crate safer_owning_ref 0.5.0 [INFO] tweaked toml for crates.io crate safer_owning_ref 0.5.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "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 1 package to latest compatible version [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] c62f90afaf4477d488470f66016e91d6976d8d061664261270960a2737be9ac4 [INFO] running `Command { std: "docker" "start" "-a" "c62f90afaf4477d488470f66016e91d6976d8d061664261270960a2737be9ac4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "c62f90afaf4477d488470f66016e91d6976d8d061664261270960a2737be9ac4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c62f90afaf4477d488470f66016e91d6976d8d061664261270960a2737be9ac4", kill_on_drop: false }` [INFO] [stdout] c62f90afaf4477d488470f66016e91d6976d8d061664261270960a2737be9ac4 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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 -Dtail_expr_drop_order" "-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 7c247c380695db37e1376560218ddf4bedd7b5357283bb0cc3b43b51ac62c202 [INFO] running `Command { std: "docker" "start" "-a" "7c247c380695db37e1376560218ddf4bedd7b5357283bb0cc3b43b51ac62c202", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] Checking stable_deref_trait v1.2.0 [INFO] [stderr] Checking safer_owning_ref v0.5.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unnecessary parentheses around type [INFO] [stdout] --> src/lib.rs:1141:28 [INFO] [stdout] | [INFO] [stdout] 1141 | where O: Send, for<'a> (&'a T): Send {} [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 1141 - where O: Send, for<'a> (&'a T): Send {} [INFO] [stdout] 1141 + where O: Send, for<'a> &'a T: Send {} [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around type [INFO] [stdout] --> src/lib.rs:1143:28 [INFO] [stdout] | [INFO] [stdout] 1143 | where O: Sync, for<'a> (&'a T): Sync {} [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 1143 - where O: Sync, for<'a> (&'a T): Sync {} [INFO] [stdout] 1143 + where O: Sync, for<'a> &'a T: Sync {} [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around type [INFO] [stdout] --> src/lib.rs:1146:28 [INFO] [stdout] | [INFO] [stdout] 1146 | where O: Send, for<'a> (&'a mut T): Send {} [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 1146 - where O: Send, for<'a> (&'a mut T): Send {} [INFO] [stdout] 1146 + where O: Send, for<'a> &'a mut T: Send {} [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around type [INFO] [stdout] --> src/lib.rs:1148:28 [INFO] [stdout] | [INFO] [stdout] 1148 | where O: Sync, for<'a> (&'a mut T): Sync {} [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 1148 - where O: Sync, for<'a> (&'a mut T): Sync {} [INFO] [stdout] 1148 + where O: Sync, for<'a> &'a mut T: Sync {} [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around type [INFO] [stdout] --> src/lib.rs:1141:28 [INFO] [stdout] | [INFO] [stdout] 1141 | where O: Send, for<'a> (&'a T): Send {} [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 1141 - where O: Send, for<'a> (&'a T): Send {} [INFO] [stdout] 1141 + where O: Send, for<'a> &'a T: Send {} [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around type [INFO] [stdout] --> src/lib.rs:1143:28 [INFO] [stdout] | [INFO] [stdout] 1143 | where O: Sync, for<'a> (&'a T): Sync {} [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 1143 - where O: Sync, for<'a> (&'a T): Sync {} [INFO] [stdout] 1143 + where O: Sync, for<'a> &'a T: Sync {} [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around type [INFO] [stdout] --> src/lib.rs:1146:28 [INFO] [stdout] | [INFO] [stdout] 1146 | where O: Send, for<'a> (&'a mut T): Send {} [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 1146 - where O: Send, for<'a> (&'a mut T): Send {} [INFO] [stdout] 1146 + where O: Send, for<'a> &'a mut T: Send {} [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around type [INFO] [stdout] --> src/lib.rs:1148:28 [INFO] [stdout] | [INFO] [stdout] 1148 | where O: Sync, for<'a> (&'a mut T): Sync {} [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 1148 - where O: Sync, for<'a> (&'a mut T): Sync {} [INFO] [stdout] 1148 + where O: Sync, for<'a> &'a mut T: Sync {} [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated method `OwningRefMut::<'t, O, T>::map`: unsafe function. can create aliased references [INFO] [stdout] --> src/lib.rs:1778:50 [INFO] [stdout] | [INFO] [stdout] 1778 | let or: BoxRef<_, str> = unsafe { or.map(|_| "hello") }; [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated method `OwningRefMut::<'t, O, T>::as_owner`: unsafe function. can create aliased references [INFO] [stdout] --> src/lib.rs:1843:40 [INFO] [stdout] | [INFO] [stdout] 1843 | assert_eq!(&** unsafe { or.as_owner() }, "hello world"); [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated method `OwningRefMut::<'t, O, T>::map`: unsafe function. can create aliased references [INFO] [stdout] --> src/lib.rs:2055:46 [INFO] [stdout] | [INFO] [stdout] 2055 | let or: BoxRef<()> = unsafe { or.map(|x| x) }; [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: creating a mutable reference to mutable static is discouraged [INFO] [stdout] --> src/lib.rs:1804:53 [INFO] [stdout] | [INFO] [stdout] 1804 | let mut_s: &'static mut [u8] = unsafe { &mut MUT_S }; [INFO] [stdout] | ^^^^^^^^^^ mutable reference to mutable static [INFO] [stdout] | [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: mutable references to mutable statics are dangerous; it's undefined behavior if any other pointer to the static is used or if any other reference is created for the static while the mutable reference lives [INFO] [stdout] = note: `#[warn(static_mut_refs)]` on by default [INFO] [stdout] help: use `&raw mut` instead to create a raw pointer [INFO] [stdout] | [INFO] [stdout] 1804 | let mut_s: &'static mut [u8] = unsafe { &raw mut MUT_S }; [INFO] [stdout] | ~~~~~~~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 8 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.60s [INFO] running `Command { std: "docker" "inspect" "7c247c380695db37e1376560218ddf4bedd7b5357283bb0cc3b43b51ac62c202", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7c247c380695db37e1376560218ddf4bedd7b5357283bb0cc3b43b51ac62c202", kill_on_drop: false }` [INFO] [stdout] 7c247c380695db37e1376560218ddf4bedd7b5357283bb0cc3b43b51ac62c202