[INFO] fetching crate mutants 0.0.3...
[INFO] checking mutants-0.0.3 against master#8e37e151835d96d6a7415e93e6876561485a3354 for pr-134218
[INFO] extracting crate mutants 0.0.3 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate mutants 0.0.3 on toolchain 8e37e151835d96d6a7415e93e6876561485a3354
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8e37e151835d96d6a7415e93e6876561485a3354" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mutants 0.0.3
[INFO] finished tweaking crates.io crate mutants 0.0.3
[INFO] tweaked toml for crates.io crate mutants 0.0.3 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8e37e151835d96d6a7415e93e6876561485a3354" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8e37e151835d96d6a7415e93e6876561485a3354" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+8e37e151835d96d6a7415e93e6876561485a3354" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3fa363446a394efffe6fb02ce44e71200773450965eb681cf0778f44b43c12e0
[INFO] running `Command { std: "docker" "start" "-a" "3fa363446a394efffe6fb02ce44e71200773450965eb681cf0778f44b43c12e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3fa363446a394efffe6fb02ce44e71200773450965eb681cf0778f44b43c12e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3fa363446a394efffe6fb02ce44e71200773450965eb681cf0778f44b43c12e0", kill_on_drop: false }`
[INFO] [stdout] 3fa363446a394efffe6fb02ce44e71200773450965eb681cf0778f44b43c12e0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=forbid" "-e" "RUSTDOCFLAGS=--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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+8e37e151835d96d6a7415e93e6876561485a3354" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0aa8f63bac121b6cd4c691d22b264ac51b7e1e70259fa614f0ea13f3c85f9d4b
[INFO] running `Command { std: "docker" "start" "-a" "0aa8f63bac121b6cd4c691d22b264ac51b7e1e70259fa614f0ea13f3c85f9d4b", kill_on_drop: false }`
[INFO] [stderr]     Checking mutants v0.0.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.20s
[INFO] running `Command { std: "docker" "inspect" "0aa8f63bac121b6cd4c691d22b264ac51b7e1e70259fa614f0ea13f3c85f9d4b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0aa8f63bac121b6cd4c691d22b264ac51b7e1e70259fa614f0ea13f3c85f9d4b", kill_on_drop: false }`
[INFO] [stdout] 0aa8f63bac121b6cd4c691d22b264ac51b7e1e70259fa614f0ea13f3c85f9d4b