[INFO] fetching crate mutification_derive 0.3.0...
[INFO] testing mutification_derive-0.3.0 against 1.91.0 for beta-1.92-2
[INFO] extracting crate mutification_derive 0.3.0 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate mutification_derive 0.3.0
[INFO] finished tweaking crates.io crate mutification_derive 0.3.0
[INFO] tweaked toml for crates.io crate mutification_derive 0.3.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate mutification_derive 0.3.0 on toolchain 1.91.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 4 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 59e90f92fa259ef018e1bb42c07b413205dc0e785d4e5c93a15ec2dd3fab892d
[INFO] running `Command { std: "docker" "start" "-a" "59e90f92fa259ef018e1bb42c07b413205dc0e785d4e5c93a15ec2dd3fab892d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "59e90f92fa259ef018e1bb42c07b413205dc0e785d4e5c93a15ec2dd3fab892d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "59e90f92fa259ef018e1bb42c07b413205dc0e785d4e5c93a15ec2dd3fab892d", kill_on_drop: false }`
[INFO] [stdout] 59e90f92fa259ef018e1bb42c07b413205dc0e785d4e5c93a15ec2dd3fab892d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3bff6a5bb0c13c39a4c608eecbd2cc03936ae33f67a3aee5a747bf5f5c07a92c
[INFO] running `Command { std: "docker" "start" "-a" "3bff6a5bb0c13c39a4c608eecbd2cc03936ae33f67a3aee5a747bf5f5c07a92c", kill_on_drop: false }`
[INFO] [stderr]    Compiling quote v1.0.41
[INFO] [stderr]    Compiling syn v2.0.108
[INFO] [stderr]    Compiling mutification_derive v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.17s
[INFO] running `Command { std: "docker" "inspect" "3bff6a5bb0c13c39a4c608eecbd2cc03936ae33f67a3aee5a747bf5f5c07a92c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3bff6a5bb0c13c39a4c608eecbd2cc03936ae33f67a3aee5a747bf5f5c07a92c", kill_on_drop: false }`
[INFO] [stdout] 3bff6a5bb0c13c39a4c608eecbd2cc03936ae33f67a3aee5a747bf5f5c07a92c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b819255f076fef679d2b3bfc5990d4baf07a1341e5b94d8da813617dd6e0edff
[INFO] running `Command { std: "docker" "start" "-a" "b819255f076fef679d2b3bfc5990d4baf07a1341e5b94d8da813617dd6e0edff", kill_on_drop: false }`
[INFO] [stderr]    Compiling mutification_derive v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.42s
[INFO] running `Command { std: "docker" "inspect" "b819255f076fef679d2b3bfc5990d4baf07a1341e5b94d8da813617dd6e0edff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b819255f076fef679d2b3bfc5990d4baf07a1341e5b94d8da813617dd6e0edff", kill_on_drop: false }`
[INFO] [stdout] b819255f076fef679d2b3bfc5990d4baf07a1341e5b94d8da813617dd6e0edff
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 079513ab404a559268fefbb6f73c313f4e46b4cb4d3eb6847b8fb39e2e3525da
[INFO] running `Command { std: "docker" "start" "-a" "079513ab404a559268fefbb6f73c313f4e46b4cb4d3eb6847b8fb39e2e3525da", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/mutification_derive-659db6e0c0817945)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests mutification_derive
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "079513ab404a559268fefbb6f73c313f4e46b4cb4d3eb6847b8fb39e2e3525da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "079513ab404a559268fefbb6f73c313f4e46b4cb4d3eb6847b8fb39e2e3525da", kill_on_drop: false }`
[INFO] [stdout] 079513ab404a559268fefbb6f73c313f4e46b4cb4d3eb6847b8fb39e2e3525da