[INFO] fetching crate byte-mutator 0.2.0... [INFO] testing byte-mutator-0.2.0 against beta-2021-09-08 for beta-1.56-1 [INFO] extracting crate byte-mutator 0.2.0 into /workspace/builds/worker-43/source [INFO] validating manifest of crates.io crate byte-mutator 0.2.0 on toolchain beta-2021-09-08 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "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-43/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 49a98b2f663ac1efb57cd74fdca1b458d98df97d8313cae706900c0905b57e42 [INFO] running `Command { std: "docker" "start" "-a" "49a98b2f663ac1efb57cd74fdca1b458d98df97d8313cae706900c0905b57e42", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "49a98b2f663ac1efb57cd74fdca1b458d98df97d8313cae706900c0905b57e42", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "49a98b2f663ac1efb57cd74fdca1b458d98df97d8313cae706900c0905b57e42", kill_on_drop: false }` [INFO] [stdout] 49a98b2f663ac1efb57cd74fdca1b458d98df97d8313cae706900c0905b57e42 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] b345c57980143ac61215fcc4abeeb52d7755da690b0ab2a10f09a583ee7a7ca3 [INFO] running `Command { std: "docker" "start" "-a" "b345c57980143ac61215fcc4abeeb52d7755da690b0ab2a10f09a583ee7a7ca3", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling proc-macro2 v1.0.29 [INFO] [stderr] Compiling unicode-xid v0.2.2 [INFO] [stderr] Compiling serde v1.0.130 [INFO] [stderr] Compiling syn v1.0.76 [INFO] [stderr] Compiling serde_derive v1.0.130 [INFO] [stderr] Compiling arrayvec v0.5.2 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Compiling toml v0.5.8 [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: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 46.21s [INFO] running `Command { std: "docker" "inspect" "b345c57980143ac61215fcc4abeeb52d7755da690b0ab2a10f09a583ee7a7ca3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b345c57980143ac61215fcc4abeeb52d7755da690b0ab2a10f09a583ee7a7ca3", kill_on_drop: false }` [INFO] [stdout] b345c57980143ac61215fcc4abeeb52d7755da690b0ab2a10f09a583ee7a7ca3 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 1f1cda15c3f8de4860a336e13e9996485cfb5d952f7463b7ef69fa584b83d5bc [INFO] running `Command { std: "docker" "start" "-a" "1f1cda15c3f8de4860a336e13e9996485cfb5d952f7463b7ef69fa584b83d5bc", kill_on_drop: false }` [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: 1 warning emitted [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: 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: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.97s [INFO] running `Command { std: "docker" "inspect" "1f1cda15c3f8de4860a336e13e9996485cfb5d952f7463b7ef69fa584b83d5bc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1f1cda15c3f8de4860a336e13e9996485cfb5d952f7463b7ef69fa584b83d5bc", kill_on_drop: false }` [INFO] [stdout] 1f1cda15c3f8de4860a336e13e9996485cfb5d952f7463b7ef69fa584b83d5bc [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 5a2a4cfce0035abc54df3f7b2d4baca5e1506a7a3a2062978deb157d92a65bab [INFO] running `Command { std: "docker" "start" "-a" "5a2a4cfce0035abc54df3f7b2d4baca5e1506a7a3a2062978deb157d92a65bab", 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: `byte-mutator` (lib) generated 1 warning [INFO] [stderr] warning: `byte-mutator` (lib test) generated 1 warning (1 duplicate) [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 0.02s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/byte_mutator-2292072574abff82) [INFO] [stdout] [INFO] [stdout] running 6 tests [INFO] [stdout] test mutators::bitflipper::tests::flip_bit ... ok [INFO] [stdout] test undo_buffer::tests::mutate_and_reset ... ok [INFO] [stderr] Running tests/tests.rs (/opt/rustwide/target/debug/deps/tests-236ec3ae8b601ada) [INFO] [stdout] test fuzz_config::tests::config_from_string ... ok [INFO] [stdout] test tests::mutator_stage ... ok [INFO] [stdout] test undo_buffer::tests::mutate_reset_range ... ok [INFO] [stdout] test fuzz_config::tests::config_from_file ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] running 2 tests [INFO] [stdout] test mutator ... ok [INFO] [stdout] test mutator_from_config ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [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 0.58s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "5a2a4cfce0035abc54df3f7b2d4baca5e1506a7a3a2062978deb157d92a65bab", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5a2a4cfce0035abc54df3f7b2d4baca5e1506a7a3a2062978deb157d92a65bab", kill_on_drop: false }` [INFO] [stdout] 5a2a4cfce0035abc54df3f7b2d4baca5e1506a7a3a2062978deb157d92a65bab