[INFO] fetching crate exonum_leveldb 0.9.1... [INFO] checking exonum_leveldb-0.9.1 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930 [INFO] extracting crate exonum_leveldb 0.9.1 into /workspace/builds/worker-3-tc2/source [INFO] validating manifest of crates.io crate exonum_leveldb 0.9.1 on toolchain c387b04bf028733cd561d62128c8a5eee4bc1458 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate exonum_leveldb 0.9.1 [INFO] removed 0 missing tests [INFO] finished tweaking crates.io crate exonum_leveldb 0.9.1 [INFO] tweaked toml for crates.io crate exonum_leveldb 0.9.1 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" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [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 hermit-abi v0.3.9 (available: v0.4.0) [INFO] [stderr] Adding rand v0.4.6 (available: v0.8.5) [INFO] [stderr] Adding rand_core v0.3.1 (available: v0.6.4) [INFO] [stderr] Adding rand_core v0.4.2 (available: v0.6.4) [INFO] [stderr] Adding rdrand v0.4.0 (available: v0.8.3) [INFO] [stderr] Adding remove_dir_all v0.5.3 (available: v0.8.4) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] warning: An explicit [[test]] section is specified in Cargo.toml which currently [INFO] [stderr] disables Cargo from automatically inferring other test targets. [INFO] [stderr] This inference behavior will change in the Rust 2018 edition and the following [INFO] [stderr] files will be included as a test target: [INFO] [stderr] [INFO] [stderr] * tests/binary.rs [INFO] [stderr] * tests/snapshots.rs [INFO] [stderr] * tests/comparator.rs [INFO] [stderr] * tests/management.rs [INFO] [stderr] * tests/database.rs [INFO] [stderr] * tests/cache.rs [INFO] [stderr] * tests/compaction.rs [INFO] [stderr] * tests/utils.rs [INFO] [stderr] * tests/writebatch.rs [INFO] [stderr] * tests/iterator.rs [INFO] [stderr] * tests/concurrent_access.rs [INFO] [stderr] [INFO] [stderr] This is likely to break cargo build or cargo test as these files may not be [INFO] [stderr] ready to be compiled as a test target today. You can future-proof yourself [INFO] [stderr] and disable this warning by adding `autotests = false` to your [package] [INFO] [stderr] section. You may also move the files to a location where Cargo would not [INFO] [stderr] automatically infer them to be a target, such as in subfolders. [INFO] [stderr] [INFO] [stderr] For more information on this warning you can consult [INFO] [stderr] https://github.com/rust-lang/cargo/issues/5330 [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] Blocking waiting for file lock on package cache [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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 5aadf29ca9c3fdd01932c406db572fe270005ce37bdeabf786a8771d65a84454 [INFO] running `Command { std: "docker" "start" "-a" "5aadf29ca9c3fdd01932c406db572fe270005ce37bdeabf786a8771d65a84454", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "5aadf29ca9c3fdd01932c406db572fe270005ce37bdeabf786a8771d65a84454", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5aadf29ca9c3fdd01932c406db572fe270005ce37bdeabf786a8771d65a84454", kill_on_drop: false }` [INFO] [stdout] 5aadf29ca9c3fdd01932c406db572fe270005ce37bdeabf786a8771d65a84454 [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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] b0ef12286d15f09bd88ab9497d60efc0321da0c76574d914b3c9704c929651e5 [INFO] running `Command { std: "docker" "start" "-a" "b0ef12286d15f09bd88ab9497d60efc0321da0c76574d914b3c9704c929651e5", kill_on_drop: false }` [INFO] [stderr] warning: An explicit [[test]] section is specified in Cargo.toml which currently [INFO] [stderr] disables Cargo from automatically inferring other test targets. [INFO] [stderr] This inference behavior will change in the Rust 2018 edition and the following [INFO] [stderr] files will be included as a test target: [INFO] [stderr] [INFO] [stderr] * tests/binary.rs [INFO] [stderr] * tests/snapshots.rs [INFO] [stderr] * tests/comparator.rs [INFO] [stderr] * tests/management.rs [INFO] [stderr] * tests/database.rs [INFO] [stderr] * tests/cache.rs [INFO] [stderr] * tests/compaction.rs [INFO] [stderr] * tests/utils.rs [INFO] [stderr] * tests/writebatch.rs [INFO] [stderr] * tests/iterator.rs [INFO] [stderr] * tests/concurrent_access.rs [INFO] [stderr] [INFO] [stderr] This is likely to break cargo build or cargo test as these files may not be [INFO] [stderr] ready to be compiled as a test target today. You can future-proof yourself [INFO] [stderr] and disable this warning by adding `autotests = false` to your [package] [INFO] [stderr] section. You may also move the files to a location where Cargo would not [INFO] [stderr] automatically infer them to be a target, such as in subfolders. [INFO] [stderr] [INFO] [stderr] For more information on this warning you can consult [INFO] [stderr] https://github.com/rust-lang/cargo/issues/5330 [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] Checking ffi-opaque v2.0.1 [INFO] [stderr] Checking remove_dir_all v0.5.3 [INFO] [stderr] Compiling cmake v0.1.51 [INFO] [stderr] Compiling num_cpus v1.16.0 [INFO] [stderr] Checking rand v0.4.6 [INFO] [stderr] Compiling leveldb-sys v2.0.9 [INFO] [stderr] Checking tempdir v0.3.7 [INFO] [stderr] Checking exonum_leveldb v0.9.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: elided lifetime has a name [INFO] [stdout] --> src/database/iterator.rs:41:52 [INFO] [stdout] | [INFO] [stdout] 39 | pub trait Iterable<'a> { [INFO] [stdout] | -- lifetime `'a` declared here [INFO] [stdout] 40 | /// Return an Iterator iterating over (Key,Value) pairs [INFO] [stdout] 41 | fn iter(&'a self, options: ReadOptions<'a>) -> Iterator; [INFO] [stdout] | ^^^^^^^^ this elided lifetime gets resolved as `'a` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(elided_named_lifetimes)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: elided lifetime has a name [INFO] [stdout] --> src/database/iterator.rs:45:52 [INFO] [stdout] | [INFO] [stdout] 44 | impl<'a> Iterable<'a> for Database { [INFO] [stdout] | -- lifetime `'a` declared here [INFO] [stdout] 45 | fn iter(&'a self, options: ReadOptions<'a>) -> Iterator { [INFO] [stdout] | ^^^^^^^^ this elided lifetime gets resolved as `'a` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: elided lifetime has a name [INFO] [stdout] --> src/database/snapshots.rs:80:56 [INFO] [stdout] | [INFO] [stdout] 79 | impl<'a> Iterable<'a> for Snapshot<'a> { [INFO] [stdout] | -- lifetime `'a` declared here [INFO] [stdout] 80 | fn iter(&'a self, mut options: ReadOptions<'a>) -> Iterator { [INFO] [stdout] | ^^^^^^^^ this elided lifetime gets resolved as `'a` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/database/error.rs:41:32 [INFO] [stdout] | [INFO] [stdout] 41 | fn cause(&self) -> Option<&std::error::Error> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 41 | fn cause(&self) -> Option<&dyn std::error::Error> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: elided lifetime has a name [INFO] [stdout] --> src/database/iterator.rs:41:52 [INFO] [stdout] | [INFO] [stdout] 39 | pub trait Iterable<'a> { [INFO] [stdout] | -- lifetime `'a` declared here [INFO] [stdout] 40 | /// Return an Iterator iterating over (Key,Value) pairs [INFO] [stdout] 41 | fn iter(&'a self, options: ReadOptions<'a>) -> Iterator; [INFO] [stdout] | ^^^^^^^^ this elided lifetime gets resolved as `'a` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(elided_named_lifetimes)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: elided lifetime has a name [INFO] [stdout] --> src/database/iterator.rs:45:52 [INFO] [stdout] | [INFO] [stdout] 44 | impl<'a> Iterable<'a> for Database { [INFO] [stdout] | -- lifetime `'a` declared here [INFO] [stdout] 45 | fn iter(&'a self, options: ReadOptions<'a>) -> Iterator { [INFO] [stdout] | ^^^^^^^^ this elided lifetime gets resolved as `'a` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: elided lifetime has a name [INFO] [stdout] --> src/database/snapshots.rs:80:56 [INFO] [stdout] | [INFO] [stdout] 79 | impl<'a> Iterable<'a> for Snapshot<'a> { [INFO] [stdout] | -- lifetime `'a` declared here [INFO] [stdout] 80 | fn iter(&'a self, mut options: ReadOptions<'a>) -> Iterator { [INFO] [stdout] | ^^^^^^^^ this elided lifetime gets resolved as `'a` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/database/error.rs:41:32 [INFO] [stdout] | [INFO] [stdout] 41 | fn cause(&self) -> Option<&std::error::Error> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 41 | fn cause(&self) -> Option<&dyn std::error::Error> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> tests/iterator.rs:65:22 [INFO] [stdout] | [INFO] [stdout] 65 | let iterable: &mut Iterable = database; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 65 | let iterable: &mut dyn Iterable = database; [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> tests/iterator.rs:80:22 [INFO] [stdout] | [INFO] [stdout] 80 | let iterable: &mut Iterable = database; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 80 | let iterable: &mut dyn Iterable = database; [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `collect` that must be used [INFO] [stdout] --> tests/concurrent_access.rs:17:5 [INFO] [stdout] | [INFO] [stdout] 17 | / (0..10).map(|i| { [INFO] [stdout] 18 | | let local_db = shared.clone(); [INFO] [stdout] 19 | | [INFO] [stdout] 20 | | thread::spawn(move || { [INFO] [stdout] ... | [INFO] [stdout] 28 | | .map(JoinHandle::join) [INFO] [stdout] 29 | | .collect::>(); [INFO] [stdout] | |________________________^ [INFO] [stdout] | [INFO] [stdout] = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 17 | let _ = (0..10).map(|i| { [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.98s [INFO] running `Command { std: "docker" "inspect" "b0ef12286d15f09bd88ab9497d60efc0321da0c76574d914b3c9704c929651e5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b0ef12286d15f09bd88ab9497d60efc0321da0c76574d914b3c9704c929651e5", kill_on_drop: false }` [INFO] [stdout] b0ef12286d15f09bd88ab9497d60efc0321da0c76574d914b3c9704c929651e5