[INFO] fetching crate mid 3.0.7...
[INFO] building mid-3.0.7 against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237-1
[INFO] extracting crate mid 3.0.7 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate mid 3.0.7
[INFO] finished tweaking crates.io crate mid 3.0.7
[INFO] tweaked toml for crates.io crate mid 3.0.7 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mid 3.0.7 on toolchain d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate mid 3.0.7 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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1b7ccefa4d7b709ea8c96200dc963dc399743a3f30636c805b4f2a55f6a92d8f
[INFO] running `Command { std: "docker" "start" "-a" "1b7ccefa4d7b709ea8c96200dc963dc399743a3f30636c805b4f2a55f6a92d8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1b7ccefa4d7b709ea8c96200dc963dc399743a3f30636c805b4f2a55f6a92d8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b7ccefa4d7b709ea8c96200dc963dc399743a3f30636c805b4f2a55f6a92d8f", kill_on_drop: false }`
[INFO] [stdout] 1b7ccefa4d7b709ea8c96200dc963dc399743a3f30636c805b4f2a55f6a92d8f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0ed40ee817d5df35f13ed3451265eab6f39c681289f931df6e5e49e4d17b77c5
[INFO] running `Command { std: "docker" "start" "-a" "0ed40ee817d5df35f13ed3451265eab6f39c681289f931df6e5e49e4d17b77c5", kill_on_drop: false }`
[INFO] [stderr]    Compiling hmac-sha256 v1.1.12
[INFO] [stderr]    Compiling mid v3.0.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.92s
[INFO] running `Command { std: "docker" "inspect" "0ed40ee817d5df35f13ed3451265eab6f39c681289f931df6e5e49e4d17b77c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ed40ee817d5df35f13ed3451265eab6f39c681289f931df6e5e49e4d17b77c5", kill_on_drop: false }`
[INFO] [stdout] 0ed40ee817d5df35f13ed3451265eab6f39c681289f931df6e5e49e4d17b77c5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 530bcfae4b34d4695d09ea97f8270c1e77bae3e39a2771e913c4d5df7a698a7f
[INFO] running `Command { std: "docker" "start" "-a" "530bcfae4b34d4695d09ea97f8270c1e77bae3e39a2771e913c4d5df7a698a7f", kill_on_drop: false }`
[INFO] [stderr]    Compiling mid v3.0.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.77s
[INFO] running `Command { std: "docker" "inspect" "530bcfae4b34d4695d09ea97f8270c1e77bae3e39a2771e913c4d5df7a698a7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "530bcfae4b34d4695d09ea97f8270c1e77bae3e39a2771e913c4d5df7a698a7f", kill_on_drop: false }`
[INFO] [stdout] 530bcfae4b34d4695d09ea97f8270c1e77bae3e39a2771e913c4d5df7a698a7f