[INFO] fetching crate mbn 1.0.2...
[INFO] building mbn-1.0.2 against master#ad211ced81509462cdfe4c29ed10f97279a0acae for pr-135216-2
[INFO] extracting crate mbn 1.0.2 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate mbn 1.0.2 on toolchain ad211ced81509462cdfe4c29ed10f97279a0acae
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad211ced81509462cdfe4c29ed10f97279a0acae" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mbn 1.0.2
[INFO] finished tweaking crates.io crate mbn 1.0.2
[INFO] tweaked toml for crates.io crate mbn 1.0.2 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate crates.io crate mbn 1.0.2 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" "+ad211ced81509462cdfe4c29ed10f97279a0acae" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded elf v0.7.4
[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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+ad211ced81509462cdfe4c29ed10f97279a0acae" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d37964c3698f492bda3fff2616ec2ba0feffb9820f4e6f4e39981dbf6fbadf74
[INFO] running `Command { std: "docker" "start" "-a" "d37964c3698f492bda3fff2616ec2ba0feffb9820f4e6f4e39981dbf6fbadf74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d37964c3698f492bda3fff2616ec2ba0feffb9820f4e6f4e39981dbf6fbadf74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d37964c3698f492bda3fff2616ec2ba0feffb9820f4e6f4e39981dbf6fbadf74", kill_on_drop: false }`
[INFO] [stdout] d37964c3698f492bda3fff2616ec2ba0feffb9820f4e6f4e39981dbf6fbadf74
[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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+ad211ced81509462cdfe4c29ed10f97279a0acae" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 87cd87a2448bd26b30b258f3b7be4e733471568a0c988682b12db768ad85495c
[INFO] running `Command { std: "docker" "start" "-a" "87cd87a2448bd26b30b258f3b7be4e733471568a0c988682b12db768ad85495c", kill_on_drop: false }`
[INFO] [stderr]    Compiling elf v0.7.4
[INFO] [stderr]    Compiling mbn v1.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.87s
[INFO] running `Command { std: "docker" "inspect" "87cd87a2448bd26b30b258f3b7be4e733471568a0c988682b12db768ad85495c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "87cd87a2448bd26b30b258f3b7be4e733471568a0c988682b12db768ad85495c", kill_on_drop: false }`
[INFO] [stdout] 87cd87a2448bd26b30b258f3b7be4e733471568a0c988682b12db768ad85495c
[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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+ad211ced81509462cdfe4c29ed10f97279a0acae" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] afdb83debb7621fdc42b56f315341e064c021f07a2198164a819c3e10fda2ff9
[INFO] running `Command { std: "docker" "start" "-a" "afdb83debb7621fdc42b56f315341e064c021f07a2198164a819c3e10fda2ff9", kill_on_drop: false }`
[INFO] [stderr]    Compiling mbn v1.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.81s
[INFO] running `Command { std: "docker" "inspect" "afdb83debb7621fdc42b56f315341e064c021f07a2198164a819c3e10fda2ff9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "afdb83debb7621fdc42b56f315341e064c021f07a2198164a819c3e10fda2ff9", kill_on_drop: false }`
[INFO] [stdout] afdb83debb7621fdc42b56f315341e064c021f07a2198164a819c3e10fda2ff9