[INFO] fetching crate toktok_core 0.2.1...
[INFO] checking toktok_core-0.2.1 against master#55e86c996809902e8bbad512cfb4d2c18be446d9 for pr-153027
[INFO] extracting crate toktok_core 0.2.1 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate toktok_core 0.2.1
[INFO] finished tweaking crates.io crate toktok_core 0.2.1
[INFO] tweaked toml for crates.io crate toktok_core 0.2.1 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate toktok_core 0.2.1 on toolchain 55e86c996809902e8bbad512cfb4d2c18be446d9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+55e86c996809902e8bbad512cfb4d2c18be446d9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate toktok_core 0.2.1 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" "+55e86c996809902e8bbad512cfb4d2c18be446d9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+55e86c996809902e8bbad512cfb4d2c18be446d9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 613e835b46423547dd1c28817609aaafed199ed7be3e9bf7555d17984864c7c8
[INFO] running `Command { std: "docker" "start" "-a" "613e835b46423547dd1c28817609aaafed199ed7be3e9bf7555d17984864c7c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "613e835b46423547dd1c28817609aaafed199ed7be3e9bf7555d17984864c7c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "613e835b46423547dd1c28817609aaafed199ed7be3e9bf7555d17984864c7c8", kill_on_drop: false }`
[INFO] [stdout] 613e835b46423547dd1c28817609aaafed199ed7be3e9bf7555d17984864c7c8
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+55e86c996809902e8bbad512cfb4d2c18be446d9" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2221d86597be3f934ccae6fdc19e697f20fe3652fa666c4c7cdc0564945a701d
[INFO] running `Command { std: "docker" "start" "-a" "2221d86597be3f934ccae6fdc19e697f20fe3652fa666c4c7cdc0564945a701d", kill_on_drop: false }`
[INFO] [stderr]     Checking toktok_core v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.39s
[INFO] running `Command { std: "docker" "inspect" "2221d86597be3f934ccae6fdc19e697f20fe3652fa666c4c7cdc0564945a701d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2221d86597be3f934ccae6fdc19e697f20fe3652fa666c4c7cdc0564945a701d", kill_on_drop: false }`
[INFO] [stdout] 2221d86597be3f934ccae6fdc19e697f20fe3652fa666c4c7cdc0564945a701d