[INFO] fetching crate prefixes 0.1.0...
[INFO] building prefixes-0.1.0 against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] extracting crate prefixes 0.1.0 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate prefixes 0.1.0
[INFO] finished tweaking crates.io crate prefixes 0.1.0
[INFO] tweaked toml for crates.io crate prefixes 0.1.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate prefixes 0.1.0 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] 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] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 18 packages to latest compatible versions
[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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded prefixes-uppercase-os v0.1.0
[INFO] [stderr]   Downloaded prefixes-ms v0.1.0
[INFO] [stderr]   Downloaded prefixes-uppercase-p v0.1.0
[INFO] [stderr]   Downloaded prefixes-os v0.1.0
[INFO] [stderr]   Downloaded prefixes-uppercase-re v0.1.0
[INFO] [stderr]   Downloaded prefixes-f v0.1.0
[INFO] [stderr]   Downloaded prefixes-re v0.1.0
[INFO] [stderr]   Downloaded prefixes-p v0.1.0
[INFO] [stderr]   Downloaded prefixes-s v0.1.0
[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] 6329cf60ce20f6661d8ab80f16900fbca3e3406decbd7673a36d54de84bbcd3d
[INFO] running `Command { std: "docker" "start" "-a" "6329cf60ce20f6661d8ab80f16900fbca3e3406decbd7673a36d54de84bbcd3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6329cf60ce20f6661d8ab80f16900fbca3e3406decbd7673a36d54de84bbcd3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6329cf60ce20f6661d8ab80f16900fbca3e3406decbd7673a36d54de84bbcd3d", kill_on_drop: false }`
[INFO] [stdout] 6329cf60ce20f6661d8ab80f16900fbca3e3406decbd7673a36d54de84bbcd3d
[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] 1d2ef573396a4c5281b3ead09c0a4845c9b8fd27952126d900baed9457c32103
[INFO] running `Command { std: "docker" "start" "-a" "1d2ef573396a4c5281b3ead09c0a4845c9b8fd27952126d900baed9457c32103", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling quote v1.0.41
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling prefixes-f v0.1.0
[INFO] [stderr]    Compiling prefixes-s v0.1.0
[INFO] [stderr]    Compiling prefixes-uppercase-os v0.1.0
[INFO] [stderr]    Compiling prefixes-re v0.1.0
[INFO] [stderr]    Compiling prefixes-p v0.1.0
[INFO] [stderr]    Compiling prefixes-uppercase-re v0.1.0
[INFO] [stderr]    Compiling prefixes-os v0.1.0
[INFO] [stderr]    Compiling prefixes-ms v0.1.0
[INFO] [stderr]    Compiling prefixes-uppercase-p v0.1.0
[INFO] [stderr]    Compiling prefixes v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.52s
[INFO] running `Command { std: "docker" "inspect" "1d2ef573396a4c5281b3ead09c0a4845c9b8fd27952126d900baed9457c32103", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d2ef573396a4c5281b3ead09c0a4845c9b8fd27952126d900baed9457c32103", kill_on_drop: false }`
[INFO] [stdout] 1d2ef573396a4c5281b3ead09c0a4845c9b8fd27952126d900baed9457c32103
[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] 694715fdddddcad153556780038423f61ef517714ceba3b1c2da13cc09f35849
[INFO] running `Command { std: "docker" "start" "-a" "694715fdddddcad153556780038423f61ef517714ceba3b1c2da13cc09f35849", kill_on_drop: false }`
[INFO] [stderr]    Compiling prefixes v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.39s
[INFO] running `Command { std: "docker" "inspect" "694715fdddddcad153556780038423f61ef517714ceba3b1c2da13cc09f35849", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "694715fdddddcad153556780038423f61ef517714ceba3b1c2da13cc09f35849", kill_on_drop: false }`
[INFO] [stdout] 694715fdddddcad153556780038423f61ef517714ceba3b1c2da13cc09f35849