[INFO] fetching crate nuts-backend 0.7.9...
[INFO] building nuts-backend-0.7.9 against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] extracting crate nuts-backend 0.7.9 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate nuts-backend 0.7.9
[INFO] finished tweaking crates.io crate nuts-backend 0.7.9
[INFO] tweaked toml for crates.io crate nuts-backend 0.7.9 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate nuts-backend 0.7.9 on toolchain c7f6aa2869acdbf014d094c6e427e554e160b6db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a896259e32e27c1439fb243723fb403f0ad9b9798e5b969a98501edb9f6d6c13
[INFO] running `Command { std: "docker" "start" "-a" "a896259e32e27c1439fb243723fb403f0ad9b9798e5b969a98501edb9f6d6c13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a896259e32e27c1439fb243723fb403f0ad9b9798e5b969a98501edb9f6d6c13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a896259e32e27c1439fb243723fb403f0ad9b9798e5b969a98501edb9f6d6c13", kill_on_drop: false }`
[INFO] [stdout] a896259e32e27c1439fb243723fb403f0ad9b9798e5b969a98501edb9f6d6c13
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f192d23503502fdf151cb4a9e25dd6a891d5fe82be3885f0b103ddaaee9f9d48
[INFO] running `Command { std: "docker" "start" "-a" "f192d23503502fdf151cb4a9e25dd6a891d5fe82be3885f0b103ddaaee9f9d48", kill_on_drop: false }`
[INFO] [stderr]    Compiling nuts-backend v0.7.9 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.19s
[INFO] running `Command { std: "docker" "inspect" "f192d23503502fdf151cb4a9e25dd6a891d5fe82be3885f0b103ddaaee9f9d48", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f192d23503502fdf151cb4a9e25dd6a891d5fe82be3885f0b103ddaaee9f9d48", kill_on_drop: false }`
[INFO] [stdout] f192d23503502fdf151cb4a9e25dd6a891d5fe82be3885f0b103ddaaee9f9d48
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 33c2647f3fdd0939a61cf016c85a9cf74006b5ff1e7d4e2732a1ec6a0cb0a663
[INFO] running `Command { std: "docker" "start" "-a" "33c2647f3fdd0939a61cf016c85a9cf74006b5ff1e7d4e2732a1ec6a0cb0a663", kill_on_drop: false }`
[INFO] [stderr]    Compiling nuts-backend v0.7.9 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `Command { std: "docker" "inspect" "33c2647f3fdd0939a61cf016c85a9cf74006b5ff1e7d4e2732a1ec6a0cb0a663", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33c2647f3fdd0939a61cf016c85a9cf74006b5ff1e7d4e2732a1ec6a0cb0a663", kill_on_drop: false }`
[INFO] [stdout] 33c2647f3fdd0939a61cf016c85a9cf74006b5ff1e7d4e2732a1ec6a0cb0a663