[INFO] fetching crate cracker 0.1.0... [INFO] checking cracker-0.1.0 against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393 [INFO] extracting crate cracker 0.1.0 into /workspace/builds/worker-2/source [INFO] validating manifest of crates.io crate cracker 0.1.0 on toolchain 45d050cde277b22a755847338f2acc2c7b834141 [INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking crates.io crate cracker 0.1.0 [INFO] finished tweaking crates.io crate cracker 0.1.0 [INFO] tweaked toml for crates.io crate cracker 0.1.0 written to /workspace/builds/worker-2/source/Cargo.toml [INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] c8ed39d3b95863268255d5404a59f9abf4d7a07aa5fe662b58deef6a0e801685 [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" "c8ed39d3b95863268255d5404a59f9abf4d7a07aa5fe662b58deef6a0e801685"` [INFO] [stderr] Compiling typenum v1.12.0 [INFO] [stderr] Compiling gcc v0.3.55 [INFO] [stderr] Checking rustc-serialize v0.3.24 [INFO] [stderr] Checking constant_time_eq v0.1.5 [INFO] [stderr] Checking byte-tools v0.1.3 [INFO] [stderr] Checking rand v0.4.6 [INFO] [stderr] Checking time v0.1.43 [INFO] [stderr] Compiling rust-crypto v0.2.36 [INFO] [stderr] Checking rand v0.3.23 [INFO] [stderr] Checking jobsteal v0.5.1 [INFO] [stderr] Checking generic-array v0.7.3 [INFO] [stderr] Checking digest v0.5.2 [INFO] [stderr] Checking crypto-mac v0.3.0 [INFO] [stderr] Checking blake2 v0.5.2 [INFO] [stderr] Checking pwhash v0.1.2 [INFO] [stderr] Checking cracker v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unused import: `std::thread` [INFO] [stderr] --> src/lib.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 6 | use std::thread; [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused imports: `Blake2b`, `Digest` [INFO] [stderr] --> src/lib.rs:15:14 [INFO] [stderr] | [INFO] [stderr] 15 | use blake2::{Blake2b, Digest}; [INFO] [stderr] | ^^^^^^^ ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::thread` [INFO] [stderr] --> src/lib.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 6 | use std::thread; [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused imports: `Blake2b`, `Digest` [INFO] [stderr] --> src/lib.rs:15:14 [INFO] [stderr] | [INFO] [stderr] 15 | use blake2::{Blake2b, Digest}; [INFO] [stderr] | ^^^^^^^ ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused variable: `file` [INFO] [stderr] --> src/lib.rs:69:13 [INFO] [stderr] | [INFO] [stderr] 69 | let mut file = OpenOptions::new() [INFO] [stderr] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_file` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/lib.rs:69:13 [INFO] [stderr] | [INFO] [stderr] 69 | let mut file = OpenOptions::new() [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/lib.rs:100:45 [INFO] [stderr] | [INFO] [stderr] 100 | ... file.write((hash.to_string() + ":" + word + "\n").as_bytes()); [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: 5 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: unused variable: `file` [INFO] [stderr] --> src/lib.rs:69:13 [INFO] [stderr] | [INFO] [stderr] 69 | let mut file = OpenOptions::new() [INFO] [stderr] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_file` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/lib.rs:69:13 [INFO] [stderr] | [INFO] [stderr] 69 | let mut file = OpenOptions::new() [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/lib.rs:100:45 [INFO] [stderr] | [INFO] [stderr] 100 | ... file.write((hash.to_string() + ":" + word + "\n").as_bytes()); [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: 5 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 17.19s [INFO] running `"docker" "inspect" "c8ed39d3b95863268255d5404a59f9abf4d7a07aa5fe662b58deef6a0e801685"` [INFO] running `"docker" "rm" "-f" "c8ed39d3b95863268255d5404a59f9abf4d7a07aa5fe662b58deef6a0e801685"` [INFO] [stdout] c8ed39d3b95863268255d5404a59f9abf4d7a07aa5fe662b58deef6a0e801685