[INFO] fetching crate io-arc 1.0.0...
[INFO] checking io-arc-1.0.0 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate io-arc 1.0.0 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate io-arc 1.0.0
[INFO] finished tweaking crates.io crate io-arc 1.0.0
[INFO] tweaked toml for crates.io crate io-arc 1.0.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate io-arc 1.0.0 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "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" "+998b6603a58e47f42ccce7a67943234e96b6839e" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 1 package to latest compatible version
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bd044d9f17ffbad2f04b4b948bc9c4bd3ab8a755eeb225558c0ab6082aa472e1
[INFO] running `Command { std: "docker" "start" "-a" "bd044d9f17ffbad2f04b4b948bc9c4bd3ab8a755eeb225558c0ab6082aa472e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bd044d9f17ffbad2f04b4b948bc9c4bd3ab8a755eeb225558c0ab6082aa472e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd044d9f17ffbad2f04b4b948bc9c4bd3ab8a755eeb225558c0ab6082aa472e1", kill_on_drop: false }`
[INFO] [stdout] bd044d9f17ffbad2f04b4b948bc9c4bd3ab8a755eeb225558c0ab6082aa472e1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 473ea973ff172cd3b843515d61ba9d74a6a6a80040c5ad3e572da8f48730cff6
[INFO] running `Command { std: "docker" "start" "-a" "473ea973ff172cd3b843515d61ba9d74a6a6a80040c5ad3e572da8f48730cff6", kill_on_drop: false }`
[INFO] [stderr]     Checking futures-io v0.3.31
[INFO] [stderr]     Checking io-arc v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.17s
[INFO] running `Command { std: "docker" "inspect" "473ea973ff172cd3b843515d61ba9d74a6a6a80040c5ad3e572da8f48730cff6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "473ea973ff172cd3b843515d61ba9d74a6a6a80040c5ad3e572da8f48730cff6", kill_on_drop: false }`
[INFO] [stdout] 473ea973ff172cd3b843515d61ba9d74a6a6a80040c5ad3e572da8f48730cff6