[INFO] fetching crate geen 0.0.7... [INFO] checking geen-0.0.7 against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393 [INFO] extracting crate geen 0.0.7 into /workspace/builds/worker-3/source [INFO] validating manifest of crates.io crate geen 0.0.7 on toolchain 45d050cde277b22a755847338f2acc2c7b834141 [INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking crates.io crate geen 0.0.7 [INFO] finished tweaking crates.io crate geen 0.0.7 [INFO] tweaked toml for crates.io crate geen 0.0.7 written to /workspace/builds/worker-3/source/Cargo.toml [INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] cb37353d321c09ec9562f467173197b64727384509512e1639dc13ad8fdda9c4 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `"docker" "start" "-a" "cb37353d321c09ec9562f467173197b64727384509512e1639dc13ad8fdda9c4"` [INFO] [stderr] Compiling syn v1.0.18 [INFO] [stderr] Checking scopeguard v1.1.0 [INFO] [stderr] Compiling maybe-uninit v2.0.0 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Compiling bindgen v0.37.4 [INFO] [stderr] Compiling typenum v1.12.0 [INFO] [stderr] Compiling proc-macro-hack v0.5.15 [INFO] [stderr] Compiling crunchy v0.2.2 [INFO] [stderr] Compiling packed_simd v0.3.3 [INFO] [stderr] Checking fixedbitset v0.2.0 [INFO] [stderr] Compiling autocfg v0.1.7 [INFO] [stderr] Checking arrayvec v0.5.1 [INFO] [stderr] Checking subtle v2.2.2 [INFO] [stderr] Checking rustc-hex v2.1.0 [INFO] [stderr] Checking static_assertions v1.1.0 [INFO] [stderr] Checking constant_time_eq v0.1.5 [INFO] [stderr] Checking arrayref v0.3.6 [INFO] [stderr] Compiling crossbeam-utils v0.7.2 [INFO] [stderr] Compiling memoffset v0.5.4 [INFO] [stderr] Compiling crossbeam-epoch v0.8.2 [INFO] [stderr] Compiling clang-sys v0.23.0 [INFO] [stderr] Checking lock_api v0.3.4 [INFO] [stderr] Compiling proc-macro2 v0.3.5 [INFO] [stderr] Compiling indexmap v1.3.2 [INFO] [stderr] Checking anyhow v1.0.28 [INFO] [stderr] Compiling getrandom v0.1.14 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Checking thread-id v3.3.0 [INFO] [stderr] Checking backtrace-sys v0.1.37 [INFO] [stderr] Compiling clap v2.33.0 [INFO] [stderr] Checking blake2b_simd v0.5.10 [INFO] [stderr] Checking backtrace v0.3.46 [INFO] [stderr] Compiling env_logger v0.5.13 [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stderr] Checking uint v0.8.3 [INFO] [stderr] Compiling quote v0.5.2 [INFO] [stderr] Checking rand_chacha v0.2.2 [INFO] [stderr] Compiling hashbrown v0.6.3 [INFO] [stderr] Checking crossbeam-queue v0.2.1 [INFO] [stderr] Checking petgraph v0.5.0 [INFO] [stderr] Checking crossbeam-deque v0.7.3 [INFO] [stderr] Checking rand v0.7.3 [INFO] [stderr] Checking rayon-core v1.7.0 [INFO] [stderr] Compiling const-random-macro v0.1.8 [INFO] [stderr] Checking rayon v1.3.0 [INFO] [stderr] Checking generic-array v0.12.3 [INFO] [stderr] Checking const-random v0.1.8 [INFO] [stderr] Checking ahash v0.2.18 [INFO] [stderr] Checking digest v0.8.1 [INFO] [stderr] Checking parking_lot_core v0.7.2 [INFO] [stderr] Checking parking_lot v0.10.2 [INFO] [stderr] Compiling synstructure v0.12.3 [INFO] [stderr] Compiling serde_derive v1.0.106 [INFO] [stderr] Compiling thiserror-impl v1.0.16 [INFO] [stderr] Compiling zeroize_derive v1.0.0 [INFO] [stderr] Checking zeroize v1.1.0 [INFO] [stderr] Checking thiserror v1.0.16 [INFO] [stderr] Checking serde v1.0.106 [INFO] [stderr] Compiling croaring-sys v0.3.9 [INFO] [stderr] Checking bytes v0.5.4 [INFO] [stderr] Checking serde_json v1.0.52 [INFO] [stderr] Checking bincode v1.2.1 [INFO] [stderr] Checking curve25519-dalek v2.0.0 [INFO] [stderr] Checking mohan v0.0.53 [INFO] [stderr] Checking croaring v0.3.9 [INFO] [stderr] Checking geen v0.0.7 (/opt/rustwide/workdir) [INFO] [stderr] warning: unnecessary parentheses around block return value [INFO] [stderr] --> src/mmr.rs:227:9 [INFO] [stderr] | [INFO] [stderr] 227 | (self.get_merkle_root() == other.get_merkle_root()) [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_parens)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around block return value [INFO] [stderr] --> src/mutable_mmr.rs:230:9 [INFO] [stderr] | [INFO] [stderr] 230 | (self.get_merkle_root() == other.get_merkle_root()) [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around block return value [INFO] [stderr] --> src/mmr.rs:227:9 [INFO] [stderr] | [INFO] [stderr] 227 | (self.get_merkle_root() == other.get_merkle_root()) [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_parens)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around block return value [INFO] [stderr] --> src/mutable_mmr.rs:230:9 [INFO] [stderr] | [INFO] [stderr] 230 | (self.get_merkle_root() == other.get_merkle_root()) [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] [INFO] [stderr] warning: unused variable: `i` [INFO] [stderr] --> src/merkle_proof.rs:280:13 [INFO] [stderr] | [INFO] [stderr] 280 | for i in 0..path_len.as_u64() { [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `i` [INFO] [stderr] --> src/merkle_proof.rs:287:13 [INFO] [stderr] | [INFO] [stderr] 287 | for i in 0..peaks_len.as_u64() { [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/merkle_proof.rs:258:9 [INFO] [stderr] | [INFO] [stderr] 258 | path_len.write(writer); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/merkle_proof.rs:261:13 [INFO] [stderr] | [INFO] [stderr] 261 | self.path[i].write(writer); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/merkle_proof.rs:265:9 [INFO] [stderr] | [INFO] [stderr] 265 | peaks_len.write(writer); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/merkle_proof.rs:268:13 [INFO] [stderr] | [INFO] [stderr] 268 | self.peaks[i].write(writer); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: 8 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: unused variable: `i` [INFO] [stderr] --> src/merkle_proof.rs:280:13 [INFO] [stderr] | [INFO] [stderr] 280 | for i in 0..path_len.as_u64() { [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `i` [INFO] [stderr] --> src/merkle_proof.rs:287:13 [INFO] [stderr] | [INFO] [stderr] 287 | for i in 0..peaks_len.as_u64() { [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/merkle_proof.rs:258:9 [INFO] [stderr] | [INFO] [stderr] 258 | path_len.write(writer); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/merkle_proof.rs:261:13 [INFO] [stderr] | [INFO] [stderr] 261 | self.path[i].write(writer); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/merkle_proof.rs:265:9 [INFO] [stderr] | [INFO] [stderr] 265 | peaks_len.write(writer); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/merkle_proof.rs:268:13 [INFO] [stderr] | [INFO] [stderr] 268 | self.peaks[i].write(writer); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: 8 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 2m 43s [INFO] running `"docker" "inspect" "cb37353d321c09ec9562f467173197b64727384509512e1639dc13ad8fdda9c4"` [INFO] running `"docker" "rm" "-f" "cb37353d321c09ec9562f467173197b64727384509512e1639dc13ad8fdda9c4"` [INFO] [stdout] cb37353d321c09ec9562f467173197b64727384509512e1639dc13ad8fdda9c4