[INFO] fetching crate cargo-mutagen 0.1.2...
[INFO] testing cargo-mutagen-0.1.2 against beta-2023-04-20 for beta-1.70-1
[INFO] extracting crate cargo-mutagen 0.1.2 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate cargo-mutagen 0.1.2 on toolchain beta-2023-04-20
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-04-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cargo-mutagen 0.1.2
[INFO] finished tweaking crates.io crate cargo-mutagen 0.1.2
[INFO] tweaked toml for crates.io crate cargo-mutagen 0.1.2 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" __CARGO_TEST_CHANNEL_OVERRIDE_DO_NOT_USE_THIS="nightly" "/workspace/cargo-home/bin/cargo" "+beta-2023-04-20" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-04-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rustc-demangle v0.1.23
[INFO] [stderr]   Downloaded json v0.11.15
[INFO] [stderr]   Downloaded wait-timeout v0.1.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ebae1e779d6042a16608c48f524ad23ba75796db1aeab068f78ad225be84e5d4
[INFO] running `Command { std: "docker" "start" "-a" "ebae1e779d6042a16608c48f524ad23ba75796db1aeab068f78ad225be84e5d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ebae1e779d6042a16608c48f524ad23ba75796db1aeab068f78ad225be84e5d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ebae1e779d6042a16608c48f524ad23ba75796db1aeab068f78ad225be84e5d4", kill_on_drop: false }`
[INFO] [stdout] ebae1e779d6042a16608c48f524ad23ba75796db1aeab068f78ad225be84e5d4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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" "RUSTDOCFLAGS=--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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bcee6c59dfeedf7384fd2dcf93d7bb1b5a15076926ef6813d021f45b23526637
[INFO] running `Command { std: "docker" "start" "-a" "bcee6c59dfeedf7384fd2dcf93d7bb1b5a15076926ef6813d021f45b23526637", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling gimli v0.27.2
[INFO] [stderr]    Compiling unicode-xid v0.2.4
[INFO] [stderr]    Compiling rustc-demangle v0.1.23
[INFO] [stderr]    Compiling json v0.11.15
[INFO] [stderr]    Compiling object v0.30.3
[INFO] [stderr]    Compiling wait-timeout v0.1.5
[INFO] [stderr]    Compiling backtrace v0.3.67
[INFO] [stderr]    Compiling addr2line v0.19.0
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling cargo-mutagen v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:48:31
[INFO] [stdout]    |
[INFO] [stdout] 48 | fn run_mutations(runner: &mut Runner, list: &[String]) -> Result<()> {
[INFO] [stdout]    |                               ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 48 | fn run_mutations(runner: &mut dyn Runner, list: &[String]) -> Result<()> {
[INFO] [stdout]    |                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:161:26
[INFO] [stdout]     |
[INFO] [stdout] 161 |         let runner: &mut Runner = if with_coverage {
[INFO] [stdout]     |                          ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 161 |         let runner: &mut dyn Runner = if with_coverage {
[INFO] [stdout]     |                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.19s
[INFO] running `Command { std: "docker" "inspect" "bcee6c59dfeedf7384fd2dcf93d7bb1b5a15076926ef6813d021f45b23526637", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bcee6c59dfeedf7384fd2dcf93d7bb1b5a15076926ef6813d021f45b23526637", kill_on_drop: false }`
[INFO] [stdout] bcee6c59dfeedf7384fd2dcf93d7bb1b5a15076926ef6813d021f45b23526637
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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" "RUSTDOCFLAGS=--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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fc48c84b8fb34cc618257452f5e5eee7e82633cfbad6a386f1ced5649c3df344
[INFO] running `Command { std: "docker" "start" "-a" "fc48c84b8fb34cc618257452f5e5eee7e82633cfbad6a386f1ced5649c3df344", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling cargo-mutagen v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:48:31
[INFO] [stdout]    |
[INFO] [stdout] 48 | fn run_mutations(runner: &mut Runner, list: &[String]) -> Result<()> {
[INFO] [stdout]    |                               ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 48 | fn run_mutations(runner: &mut dyn Runner, list: &[String]) -> Result<()> {
[INFO] [stdout]    |                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:161:26
[INFO] [stdout]     |
[INFO] [stdout] 161 |         let runner: &mut Runner = if with_coverage {
[INFO] [stdout]     |                          ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 161 |         let runner: &mut dyn Runner = if with_coverage {
[INFO] [stdout]     |                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.67s
[INFO] running `Command { std: "docker" "inspect" "fc48c84b8fb34cc618257452f5e5eee7e82633cfbad6a386f1ced5649c3df344", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc48c84b8fb34cc618257452f5e5eee7e82633cfbad6a386f1ced5649c3df344", kill_on_drop: false }`
[INFO] [stdout] fc48c84b8fb34cc618257452f5e5eee7e82633cfbad6a386f1ced5649c3df344
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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" "RUSTDOCFLAGS=--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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] fa4160c4b5d277020f7cd82e1ecfb84173fea0f87201142648aec4694d52a12f
[INFO] running `Command { std: "docker" "start" "-a" "fa4160c4b5d277020f7cd82e1ecfb84173fea0f87201142648aec4694d52a12f", kill_on_drop: false }`
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:48:31
[INFO] [stderr]    |
[INFO] [stderr] 48 | fn run_mutations(runner: &mut Runner, list: &[String]) -> Result<()> {
[INFO] [stderr]    |                               ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 48 | fn run_mutations(runner: &mut dyn Runner, list: &[String]) -> Result<()> {
[INFO] [stderr]    |                               +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:161:26
[INFO] [stderr]     |
[INFO] [stderr] 161 |         let runner: &mut Runner = if with_coverage {
[INFO] [stderr]     |                          ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 161 |         let runner: &mut dyn Runner = if with_coverage {
[INFO] [stderr]     |                          +++
[INFO] [stderr] 
[INFO] [stderr] warning: `cargo-mutagen` (bin "cargo-mutagen" test) generated 2 warnings (run `cargo fix --bin "cargo-mutagen" --tests` to apply 2 suggestions)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/cargo_mutagen-2f888c48195aad7a)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test tests::it_decodes_well_formed_mutations ... ok
[INFO] [stdout] test tests::it_fails_to_decode_malformed_mutations ... ok
[INFO] [stdout] test runner::tests::it_returns_test_if_they_were_added ... ok
[INFO] [stdout] test runner::tests::it_returns_no_tests_on_empty ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "fa4160c4b5d277020f7cd82e1ecfb84173fea0f87201142648aec4694d52a12f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa4160c4b5d277020f7cd82e1ecfb84173fea0f87201142648aec4694d52a12f", kill_on_drop: false }`
[INFO] [stdout] fa4160c4b5d277020f7cd82e1ecfb84173fea0f87201142648aec4694d52a12f
