[INFO] fetching crate byte-mutator 0.2.0... [INFO] testing byte-mutator-0.2.0 against beta-2022-02-22 for beta-1.60-1 [INFO] extracting crate byte-mutator 0.2.0 into /workspace/builds/worker-32/source [INFO] validating manifest of crates.io crate byte-mutator 0.2.0 on toolchain beta-2022-02-22 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate byte-mutator 0.2.0 [INFO] finished tweaking crates.io crate byte-mutator 0.2.0 [INFO] tweaked toml for crates.io crate byte-mutator 0.2.0 written to /workspace/builds/worker-32/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 6df0ff8a5a0aa0c41340b87472b2ad00186ba0cd2cfe3bdb322cf19393c04aac [INFO] running `Command { std: "docker" "start" "-a" "6df0ff8a5a0aa0c41340b87472b2ad00186ba0cd2cfe3bdb322cf19393c04aac", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "6df0ff8a5a0aa0c41340b87472b2ad00186ba0cd2cfe3bdb322cf19393c04aac", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6df0ff8a5a0aa0c41340b87472b2ad00186ba0cd2cfe3bdb322cf19393c04aac", kill_on_drop: false }` [INFO] [stdout] 6df0ff8a5a0aa0c41340b87472b2ad00186ba0cd2cfe3bdb322cf19393c04aac [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 6bfe008f284ca4b7cbf7954ca0eda49d31613237a217f5e7bc26aaf712f880c0 [INFO] running `Command { std: "docker" "start" "-a" "6bfe008f284ca4b7cbf7954ca0eda49d31613237a217f5e7bc26aaf712f880c0", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling syn v1.0.86 [INFO] [stderr] Compiling arrayvec v0.5.2 [INFO] [stderr] Compiling toml v0.5.8 [INFO] [stderr] Compiling serde_derive v1.0.136 [INFO] [stderr] Compiling byte-mutator v0.2.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `Iterations` [INFO] [stdout] --> src/fuzz_config.rs:5:13 [INFO] [stdout] | [INFO] [stdout] 5 | use crate::{Iterations, Stage}; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `cur_stage` [INFO] [stdout] --> src/lib.rs:86:5 [INFO] [stdout] | [INFO] [stdout] 86 | cur_stage: usize, [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] note: `ByteMutator` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] --> src/lib.rs:81:10 [INFO] [stdout] | [INFO] [stdout] 81 | #[derive(Debug, Clone)] [INFO] [stdout] | ^^^^^ ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 16.05s [INFO] running `Command { std: "docker" "inspect" "6bfe008f284ca4b7cbf7954ca0eda49d31613237a217f5e7bc26aaf712f880c0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6bfe008f284ca4b7cbf7954ca0eda49d31613237a217f5e7bc26aaf712f880c0", kill_on_drop: false }` [INFO] [stdout] 6bfe008f284ca4b7cbf7954ca0eda49d31613237a217f5e7bc26aaf712f880c0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 30621f16a52ecd0a2f579f531f0aea965badda283359927e3b97801b85beb651 [INFO] running `Command { std: "docker" "start" "-a" "30621f16a52ecd0a2f579f531f0aea965badda283359927e3b97801b85beb651", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling byte-mutator v0.2.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `Iterations` [INFO] [stdout] --> src/fuzz_config.rs:5:13 [INFO] [stdout] | [INFO] [stdout] 5 | use crate::{Iterations, Stage}; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `cur_stage` [INFO] [stdout] --> src/lib.rs:86:5 [INFO] [stdout] | [INFO] [stdout] 86 | cur_stage: usize, [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] note: `ByteMutator` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] --> src/lib.rs:81:10 [INFO] [stdout] | [INFO] [stdout] 81 | #[derive(Debug, Clone)] [INFO] [stdout] | ^^^^^ ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Iterations` [INFO] [stdout] --> src/fuzz_config.rs:5:13 [INFO] [stdout] | [INFO] [stdout] 5 | use crate::{Iterations, Stage}; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> tests/tests.rs:19:9 [INFO] [stdout] | [INFO] [stdout] 19 | let mut mutator = ByteMutator::new().with_stages(vec![Stage { [INFO] [stdout] | ----^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `cur_stage` [INFO] [stdout] --> src/lib.rs:86:5 [INFO] [stdout] | [INFO] [stdout] 86 | cur_stage: usize, [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] note: `ByteMutator` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] --> src/lib.rs:81:10 [INFO] [stdout] | [INFO] [stdout] 81 | #[derive(Debug, Clone)] [INFO] [stdout] | ^^^^^ ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.90s [INFO] running `Command { std: "docker" "inspect" "30621f16a52ecd0a2f579f531f0aea965badda283359927e3b97801b85beb651", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "30621f16a52ecd0a2f579f531f0aea965badda283359927e3b97801b85beb651", kill_on_drop: false }` [INFO] [stdout] 30621f16a52ecd0a2f579f531f0aea965badda283359927e3b97801b85beb651 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] de967d26e1cdde12a1dc5ed8147b8d394c3e1e2a3dc83920491e61f1983ba9ac [INFO] running `Command { std: "docker" "start" "-a" "de967d26e1cdde12a1dc5ed8147b8d394c3e1e2a3dc83920491e61f1983ba9ac", kill_on_drop: false }` [INFO] [stderr] warning: unused import: `Iterations` [INFO] [stderr] --> src/fuzz_config.rs:5:13 [INFO] [stderr] | [INFO] [stderr] 5 | use crate::{Iterations, Stage}; [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: field is never read: `cur_stage` [INFO] [stderr] --> src/lib.rs:86:5 [INFO] [stderr] | [INFO] [stderr] 86 | cur_stage: usize, [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] note: `ByteMutator` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stderr] --> src/lib.rs:81:10 [INFO] [stderr] | [INFO] [stderr] 81 | #[derive(Debug, Clone)] [INFO] [stderr] | ^^^^^ ^^^^^ [INFO] [stderr] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: `byte-mutator` (lib) generated 2 warnings [INFO] [stderr] warning: `byte-mutator` (lib test) generated 2 warnings (2 duplicates) [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> tests/tests.rs:19:9 [INFO] [stderr] | [INFO] [stderr] 19 | let mut mutator = ByteMutator::new().with_stages(vec![Stage { [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: `byte-mutator` (test "tests") generated 1 warning [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.08s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/byte_mutator-53a198b7e9d011ac) [INFO] [stdout] [INFO] [stdout] running 6 tests [INFO] [stdout] test mutators::bitflipper::tests::flip_bit ... ok [INFO] [stdout] test fuzz_config::tests::config_from_file ... ok [INFO] [stderr] Running tests/tests.rs (/opt/rustwide/target/debug/deps/tests-26b46375f4c1a9e9) [INFO] [stdout] test tests::mutator_stage ... ok [INFO] [stdout] test undo_buffer::tests::mutate_and_reset ... ok [INFO] [stdout] test undo_buffer::tests::mutate_reset_range ... ok [INFO] [stdout] test fuzz_config::tests::config_from_string ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] running 2 tests [INFO] [stdout] test mutator_from_config ... ok [INFO] [stdout] test mutator ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s [INFO] [stdout] [INFO] [stderr] Doc-tests byte-mutator [INFO] [stdout] [INFO] [stdout] running 2 tests [INFO] [stdout] test src/lib.rs - (line 7) ... ok [INFO] [stdout] test src/mutators/mod.rs - mutators (line 4) ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.73s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "de967d26e1cdde12a1dc5ed8147b8d394c3e1e2a3dc83920491e61f1983ba9ac", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "de967d26e1cdde12a1dc5ed8147b8d394c3e1e2a3dc83920491e61f1983ba9ac", kill_on_drop: false }` [INFO] [stdout] de967d26e1cdde12a1dc5ed8147b8d394c3e1e2a3dc83920491e61f1983ba9ac