[INFO] fetching crate byte-mutator 0.2.0... [INFO] testing byte-mutator-0.2.0 against master#99e3aef02079e9c10583638520cd0c134dc3a01d for pr-85530 [INFO] extracting crate byte-mutator 0.2.0 into /workspace/builds/worker-4/source [INFO] validating manifest of crates.io crate byte-mutator 0.2.0 on toolchain 99e3aef02079e9c10583638520cd0c134dc3a01d [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "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-4/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 740c077d2b774b55759c89a701093dca99a57b7c2366baa87b33ca1eec207ad1 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "740c077d2b774b55759c89a701093dca99a57b7c2366baa87b33ca1eec207ad1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "740c077d2b774b55759c89a701093dca99a57b7c2366baa87b33ca1eec207ad1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "740c077d2b774b55759c89a701093dca99a57b7c2366baa87b33ca1eec207ad1", kill_on_drop: false }` [INFO] [stdout] 740c077d2b774b55759c89a701093dca99a57b7c2366baa87b33ca1eec207ad1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "-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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 20e26db37d7ab0aa999758ac9fbf093c651a05c138aa75fc1e7c5d9a85c4becd [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "20e26db37d7ab0aa999758ac9fbf093c651a05c138aa75fc1e7c5d9a85c4becd", kill_on_drop: false }` [INFO] [stderr] Compiling arrayvec v0.5.2 [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 2.40s [INFO] running `Command { std: "docker" "inspect" "20e26db37d7ab0aa999758ac9fbf093c651a05c138aa75fc1e7c5d9a85c4becd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "20e26db37d7ab0aa999758ac9fbf093c651a05c138aa75fc1e7c5d9a85c4becd", kill_on_drop: false }` [INFO] [stdout] 20e26db37d7ab0aa999758ac9fbf093c651a05c138aa75fc1e7c5d9a85c4becd [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "-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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 4075ebcaacd4859d12a99df500f10060ddc7fa1efe59591b94b5e299bf2b41fc [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "4075ebcaacd4859d12a99df500f10060ddc7fa1efe59591b94b5e299bf2b41fc", kill_on_drop: false }` [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] [stderr] Compiling byte-mutator v0.2.0 (/opt/rustwide/workdir) [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 1.13s [INFO] running `Command { std: "docker" "inspect" "4075ebcaacd4859d12a99df500f10060ddc7fa1efe59591b94b5e299bf2b41fc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4075ebcaacd4859d12a99df500f10060ddc7fa1efe59591b94b5e299bf2b41fc", kill_on_drop: false }` [INFO] [stdout] 4075ebcaacd4859d12a99df500f10060ddc7fa1efe59591b94b5e299bf2b41fc [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "-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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 881eaedf273808b79fded7b6d6ba9a02102f544fe01ff282b0095b273626ed23 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "881eaedf273808b79fded7b6d6ba9a02102f544fe01ff282b0095b273626ed23", 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: 1 warning emitted [INFO] [stderr] [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: 1 warning emitted [INFO] [stderr] [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: 1 warning emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.01s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/byte_mutator-a941bc9ffa83c531) [INFO] [stdout] [INFO] [stdout] running 6 tests [INFO] [stdout] test mutators::bitflipper::tests::flip_bit ... ok [INFO] [stdout] test tests::mutator_stage ... ok [INFO] [stdout] test undo_buffer::tests::mutate_reset_range ... ok [INFO] [stdout] test undo_buffer::tests::mutate_and_reset ... ok [INFO] [stdout] test fuzz_config::tests::config_from_file ... 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 0.00s [INFO] [stdout] [INFO] [stderr] Running tests/tests.rs (/opt/rustwide/target/debug/deps/tests-667ac822d5a70b23) [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 0.43s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "881eaedf273808b79fded7b6d6ba9a02102f544fe01ff282b0095b273626ed23", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "881eaedf273808b79fded7b6d6ba9a02102f544fe01ff282b0095b273626ed23", kill_on_drop: false }` [INFO] [stdout] 881eaedf273808b79fded7b6d6ba9a02102f544fe01ff282b0095b273626ed23