[INFO] fetching crate singleton-manager 0.1.4... [INFO] building singleton-manager-0.1.4 against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523 [INFO] extracting crate singleton-manager 0.1.4 into /workspace/builds/worker-5-tc1/source [INFO] validating manifest of crates.io crate singleton-manager 0.1.4 on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] removed /workspace/builds/worker-5-tc1/source/rust-toolchain [INFO] started tweaking crates.io crate singleton-manager 0.1.4 [INFO] finished tweaking crates.io crate singleton-manager 0.1.4 [INFO] tweaked toml for crates.io crate singleton-manager 0.1.4 written to /workspace/builds/worker-5-tc1/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "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 5 packages to latest compatible versions [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 45d21d5d0c68e270eb2bac8f625eea89aab45ed0f545b23f06602fd847c69e74 [INFO] running `Command { std: "docker" "start" "-a" "45d21d5d0c68e270eb2bac8f625eea89aab45ed0f545b23f06602fd847c69e74", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "45d21d5d0c68e270eb2bac8f625eea89aab45ed0f545b23f06602fd847c69e74", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "45d21d5d0c68e270eb2bac8f625eea89aab45ed0f545b23f06602fd847c69e74", kill_on_drop: false }` [INFO] [stdout] 45d21d5d0c68e270eb2bac8f625eea89aab45ed0f545b23f06602fd847c69e74 [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 -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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 5f1a270eab30260ae1b29562d1ec344550925ba066117ac87053433e59bc0b4b [INFO] running `Command { std: "docker" "start" "-a" "5f1a270eab30260ae1b29562d1ec344550925ba066117ac87053433e59bc0b4b", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.169 [INFO] [stderr] Compiling getrandom v0.2.15 [INFO] [stderr] Compiling uuid v1.11.0 [INFO] [stderr] Compiling singleton-manager v0.1.4 (/opt/rustwide/workdir) [INFO] [stdout] warning: elided lifetime has a name [INFO] [stdout] --> src/lib.rs:342:65 [INFO] [stdout] | [INFO] [stdout] 342 | fn singleton_get(&'static mut self, alias: &Uuid) -> Result<&mut Box> { [INFO] [stdout] | ^ this elided lifetime gets resolved as `'static` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(elided_named_lifetimes)]` on by default [INFO] [stdout] help: consider specifying it explicitly [INFO] [stdout] | [INFO] [stdout] 342 | fn singleton_get(&'static mut self, alias: &Uuid) -> Result<&'static mut Box> { [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: elided lifetime has a name [INFO] [stdout] --> src/lib.rs:381:59 [INFO] [stdout] | [INFO] [stdout] 381 | fn factory(&'static mut self, alias: &Uuid) -> Result<&mut Box> { [INFO] [stdout] | ^ this elided lifetime gets resolved as `'static` [INFO] [stdout] | [INFO] [stdout] help: consider specifying it explicitly [INFO] [stdout] | [INFO] [stdout] 381 | fn factory(&'static mut self, alias: &Uuid) -> Result<&'static mut Box> { [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: creating a shared reference to mutable static is discouraged [INFO] [stdout] --> src/lib.rs:174:13 [INFO] [stdout] | [INFO] [stdout] 174 | ONCE.call_once(|| INSTANCE = Cell::new(Some(SingletonManager::new()))); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ shared reference to mutable static [INFO] [stdout] | [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives [INFO] [stdout] = note: `#[warn(static_mut_refs)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: creating a shared reference to mutable static is discouraged [INFO] [stdout] --> src/lib.rs:175:20 [INFO] [stdout] | [INFO] [stdout] 175 | match *INSTANCE.as_ptr() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ shared reference to mutable static [INFO] [stdout] | [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.41s [INFO] running `Command { std: "docker" "inspect" "5f1a270eab30260ae1b29562d1ec344550925ba066117ac87053433e59bc0b4b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5f1a270eab30260ae1b29562d1ec344550925ba066117ac87053433e59bc0b4b", kill_on_drop: false }` [INFO] [stdout] 5f1a270eab30260ae1b29562d1ec344550925ba066117ac87053433e59bc0b4b [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 -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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 9957781d5614f5cca508dfed335671c54b63c950db04d491b82eda360c61938a [INFO] running `Command { std: "docker" "start" "-a" "9957781d5614f5cca508dfed335671c54b63c950db04d491b82eda360c61938a", kill_on_drop: false }` [INFO] [stdout] warning: elided lifetime has a name [INFO] [stdout] --> src/lib.rs:342:65 [INFO] [stdout] | [INFO] [stdout] 342 | fn singleton_get(&'static mut self, alias: &Uuid) -> Result<&mut Box> { [INFO] [stdout] | ^ this elided lifetime gets resolved as `'static` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(elided_named_lifetimes)]` on by default [INFO] [stdout] help: consider specifying it explicitly [INFO] [stdout] | [INFO] [stdout] 342 | fn singleton_get(&'static mut self, alias: &Uuid) -> Result<&'static mut Box> { [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: elided lifetime has a name [INFO] [stdout] --> src/lib.rs:381:59 [INFO] [stdout] | [INFO] [stdout] 381 | fn factory(&'static mut self, alias: &Uuid) -> Result<&mut Box> { [INFO] [stdout] | ^ this elided lifetime gets resolved as `'static` [INFO] [stdout] | [INFO] [stdout] help: consider specifying it explicitly [INFO] [stdout] | [INFO] [stdout] 381 | fn factory(&'static mut self, alias: &Uuid) -> Result<&'static mut Box> { [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling singleton-manager v0.1.4 (/opt/rustwide/workdir) [INFO] [stdout] warning: creating a shared reference to mutable static is discouraged [INFO] [stdout] --> src/lib.rs:174:13 [INFO] [stdout] | [INFO] [stdout] 174 | ONCE.call_once(|| INSTANCE = Cell::new(Some(SingletonManager::new()))); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ shared reference to mutable static [INFO] [stdout] | [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives [INFO] [stdout] = note: `#[warn(static_mut_refs)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: creating a shared reference to mutable static is discouraged [INFO] [stdout] --> src/lib.rs:175:20 [INFO] [stdout] | [INFO] [stdout] 175 | match *INSTANCE.as_ptr() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ shared reference to mutable static [INFO] [stdout] | [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: elided lifetime has a name [INFO] [stdout] --> src/lib.rs:342:65 [INFO] [stdout] | [INFO] [stdout] 342 | fn singleton_get(&'static mut self, alias: &Uuid) -> Result<&mut Box> { [INFO] [stdout] | ^ this elided lifetime gets resolved as `'static` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(elided_named_lifetimes)]` on by default [INFO] [stdout] help: consider specifying it explicitly [INFO] [stdout] | [INFO] [stdout] 342 | fn singleton_get(&'static mut self, alias: &Uuid) -> Result<&'static mut Box> { [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: elided lifetime has a name [INFO] [stdout] --> src/lib.rs:381:59 [INFO] [stdout] | [INFO] [stdout] 381 | fn factory(&'static mut self, alias: &Uuid) -> Result<&mut Box> { [INFO] [stdout] | ^ this elided lifetime gets resolved as `'static` [INFO] [stdout] | [INFO] [stdout] help: consider specifying it explicitly [INFO] [stdout] | [INFO] [stdout] 381 | fn factory(&'static mut self, alias: &Uuid) -> Result<&'static mut Box> { [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::ops::Deref` [INFO] [stdout] --> src/lib.rs:434:9 [INFO] [stdout] | [INFO] [stdout] 434 | use std::ops::Deref; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: creating a shared reference to mutable static is discouraged [INFO] [stdout] --> src/lib.rs:174:13 [INFO] [stdout] | [INFO] [stdout] 174 | ONCE.call_once(|| INSTANCE = Cell::new(Some(SingletonManager::new()))); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ shared reference to mutable static [INFO] [stdout] | [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives [INFO] [stdout] = note: `#[warn(static_mut_refs)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: creating a shared reference to mutable static is discouraged [INFO] [stdout] --> src/lib.rs:175:20 [INFO] [stdout] | [INFO] [stdout] 175 | match *INSTANCE.as_ptr() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ shared reference to mutable static [INFO] [stdout] | [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.24s [INFO] running `Command { std: "docker" "inspect" "9957781d5614f5cca508dfed335671c54b63c950db04d491b82eda360c61938a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9957781d5614f5cca508dfed335671c54b63c950db04d491b82eda360c61938a", kill_on_drop: false }` [INFO] [stdout] 9957781d5614f5cca508dfed335671c54b63c950db04d491b82eda360c61938a