[INFO] fetching crate syscaller-core 0.2.3...
[INFO] building syscaller-core-0.2.3 against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] extracting crate syscaller-core 0.2.3 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate syscaller-core 0.2.3
[INFO] finished tweaking crates.io crate syscaller-core 0.2.3
[INFO] tweaked toml for crates.io crate syscaller-core 0.2.3 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate syscaller-core 0.2.3 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 syscaller-core 0.2.3 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-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b21f34d4ab109fe5aaad3ec1ffcc37ecfaa3857b70cb6fab65333e71cec45011
[INFO] running `Command { std: "docker" "start" "-a" "b21f34d4ab109fe5aaad3ec1ffcc37ecfaa3857b70cb6fab65333e71cec45011", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b21f34d4ab109fe5aaad3ec1ffcc37ecfaa3857b70cb6fab65333e71cec45011", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b21f34d4ab109fe5aaad3ec1ffcc37ecfaa3857b70cb6fab65333e71cec45011", kill_on_drop: false }`
[INFO] [stdout] b21f34d4ab109fe5aaad3ec1ffcc37ecfaa3857b70cb6fab65333e71cec45011
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 24d0d6c9fe991b7a042d4f3ea7847526bc9e87de91e43ed0790a6c4c8e9f34ab
[INFO] running `Command { std: "docker" "start" "-a" "24d0d6c9fe991b7a042d4f3ea7847526bc9e87de91e43ed0790a6c4c8e9f34ab", kill_on_drop: false }`
[INFO] [stderr]    Compiling syscaller-core v0.2.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.16s
[INFO] running `Command { std: "docker" "inspect" "24d0d6c9fe991b7a042d4f3ea7847526bc9e87de91e43ed0790a6c4c8e9f34ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "24d0d6c9fe991b7a042d4f3ea7847526bc9e87de91e43ed0790a6c4c8e9f34ab", kill_on_drop: false }`
[INFO] [stdout] 24d0d6c9fe991b7a042d4f3ea7847526bc9e87de91e43ed0790a6c4c8e9f34ab
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7d7a3552d1a122f29367307e275852722993eb65b9f367c3f035ba57a2f1f98b
[INFO] running `Command { std: "docker" "start" "-a" "7d7a3552d1a122f29367307e275852722993eb65b9f367c3f035ba57a2f1f98b", kill_on_drop: false }`
[INFO] [stderr]    Compiling syscaller-core v0.2.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.23s
[INFO] running `Command { std: "docker" "inspect" "7d7a3552d1a122f29367307e275852722993eb65b9f367c3f035ba57a2f1f98b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d7a3552d1a122f29367307e275852722993eb65b9f367c3f035ba57a2f1f98b", kill_on_drop: false }`
[INFO] [stdout] 7d7a3552d1a122f29367307e275852722993eb65b9f367c3f035ba57a2f1f98b