[INFO] fetching crate muttest 0.0.0-reserved...
[INFO] building muttest-0.0.0-reserved against master#ad85bc524b1ad696e42061ad8338d382dffbdbe5 for pr-146237-1
[INFO] extracting crate muttest 0.0.0-reserved into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate muttest 0.0.0-reserved
[INFO] finished tweaking crates.io crate muttest 0.0.0-reserved
[INFO] tweaked toml for crates.io crate muttest 0.0.0-reserved written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate muttest 0.0.0-reserved on toolchain ad85bc524b1ad696e42061ad8338d382dffbdbe5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "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" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "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" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c42cd0dca1d61a9e7ba5c76e793a1beaa5e1a8ef26dcccd63f6bbd6f491c7f66
[INFO] running `Command { std: "docker" "start" "-a" "c42cd0dca1d61a9e7ba5c76e793a1beaa5e1a8ef26dcccd63f6bbd6f491c7f66", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c42cd0dca1d61a9e7ba5c76e793a1beaa5e1a8ef26dcccd63f6bbd6f491c7f66", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c42cd0dca1d61a9e7ba5c76e793a1beaa5e1a8ef26dcccd63f6bbd6f491c7f66", kill_on_drop: false }`
[INFO] [stdout] c42cd0dca1d61a9e7ba5c76e793a1beaa5e1a8ef26dcccd63f6bbd6f491c7f66
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f1193fe9c7dcdf47090769e157dd591a4ccc0c48f5f4b05c2ee52dc6831184b6
[INFO] running `Command { std: "docker" "start" "-a" "f1193fe9c7dcdf47090769e157dd591a4ccc0c48f5f4b05c2ee52dc6831184b6", kill_on_drop: false }`
[INFO] [stderr]    Compiling muttest v0.0.0-reserved (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.11s
[INFO] running `Command { std: "docker" "inspect" "f1193fe9c7dcdf47090769e157dd591a4ccc0c48f5f4b05c2ee52dc6831184b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1193fe9c7dcdf47090769e157dd591a4ccc0c48f5f4b05c2ee52dc6831184b6", kill_on_drop: false }`
[INFO] [stdout] f1193fe9c7dcdf47090769e157dd591a4ccc0c48f5f4b05c2ee52dc6831184b6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3e1e7cdce142b858c478721197da5706b0e36f61df2e08137c8fe73ae16c8ce0
[INFO] running `Command { std: "docker" "start" "-a" "3e1e7cdce142b858c478721197da5706b0e36f61df2e08137c8fe73ae16c8ce0", kill_on_drop: false }`
[INFO] [stderr]    Compiling muttest v0.0.0-reserved (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `Command { std: "docker" "inspect" "3e1e7cdce142b858c478721197da5706b0e36f61df2e08137c8fe73ae16c8ce0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e1e7cdce142b858c478721197da5706b0e36f61df2e08137c8fe73ae16c8ce0", kill_on_drop: false }`
[INFO] [stdout] 3e1e7cdce142b858c478721197da5706b0e36f61df2e08137c8fe73ae16c8ce0