[INFO] fetching crate softcore-prelude 0.4.0...
[INFO] building softcore-prelude-0.4.0 against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] extracting crate softcore-prelude 0.4.0 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate softcore-prelude 0.4.0
[INFO] finished tweaking crates.io crate softcore-prelude 0.4.0
[INFO] tweaked toml for crates.io crate softcore-prelude 0.4.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate softcore-prelude 0.4.0 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] crate crates.io crate softcore-prelude 0.4.0 already has a lockfile, it will not be regenerated
[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-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 7ca262ae54f8f158e45adceeda54a901ca0166bc9cccac664071da2386ac0c03
[INFO] running `Command { std: "docker" "start" "-a" "7ca262ae54f8f158e45adceeda54a901ca0166bc9cccac664071da2386ac0c03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7ca262ae54f8f158e45adceeda54a901ca0166bc9cccac664071da2386ac0c03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ca262ae54f8f158e45adceeda54a901ca0166bc9cccac664071da2386ac0c03", kill_on_drop: false }`
[INFO] [stdout] 7ca262ae54f8f158e45adceeda54a901ca0166bc9cccac664071da2386ac0c03
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 93f1222d420ad8f80f694f6e021fdce21c55ef62738f95de37b3a1296497b085
[INFO] running `Command { std: "docker" "start" "-a" "93f1222d420ad8f80f694f6e021fdce21c55ef62738f95de37b3a1296497b085", kill_on_drop: false }`
[INFO] [stderr]    Compiling softcore-prelude v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.20s
[INFO] running `Command { std: "docker" "inspect" "93f1222d420ad8f80f694f6e021fdce21c55ef62738f95de37b3a1296497b085", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93f1222d420ad8f80f694f6e021fdce21c55ef62738f95de37b3a1296497b085", kill_on_drop: false }`
[INFO] [stdout] 93f1222d420ad8f80f694f6e021fdce21c55ef62738f95de37b3a1296497b085
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 5d06d65634e2ce428f3e2b89f86db68004cd8ef951ad8c0f0c6ed48652317eea
[INFO] running `Command { std: "docker" "start" "-a" "5d06d65634e2ce428f3e2b89f86db68004cd8ef951ad8c0f0c6ed48652317eea", kill_on_drop: false }`
[INFO] [stderr]    Compiling softcore-prelude v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.62s
[INFO] running `Command { std: "docker" "inspect" "5d06d65634e2ce428f3e2b89f86db68004cd8ef951ad8c0f0c6ed48652317eea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d06d65634e2ce428f3e2b89f86db68004cd8ef951ad8c0f0c6ed48652317eea", kill_on_drop: false }`
[INFO] [stdout] 5d06d65634e2ce428f3e2b89f86db68004cd8ef951ad8c0f0c6ed48652317eea