[INFO] fetching crate pros-async 0.2.1...
[INFO] checking pros-async-0.2.1 against try#012cd62c9add58ab3910e44c137d87db3ab70f61 for pr-155915
[INFO] extracting crate pros-async 0.2.1 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate pros-async 0.2.1
[INFO] finished tweaking crates.io crate pros-async 0.2.1
[INFO] tweaked toml for crates.io crate pros-async 0.2.1 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate pros-async 0.2.1 on toolchain 012cd62c9add58ab3910e44c137d87db3ab70f61
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "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" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 21 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9421c6386dc00a507b692a81e6d1067879ba061f9e88d807a57e371cf44ece11
[INFO] running `Command { std: "docker" "start" "-a" "9421c6386dc00a507b692a81e6d1067879ba061f9e88d807a57e371cf44ece11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9421c6386dc00a507b692a81e6d1067879ba061f9e88d807a57e371cf44ece11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9421c6386dc00a507b692a81e6d1067879ba061f9e88d807a57e371cf44ece11", kill_on_drop: false }`
[INFO] [stdout] 9421c6386dc00a507b692a81e6d1067879ba061f9e88d807a57e371cf44ece11
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 190d85bb8947fa60740f0a63e1b693fe9e6278bf3990e84b4ddc20ac79f52f4f
[INFO] running `Command { std: "docker" "start" "-a" "190d85bb8947fa60740f0a63e1b693fe9e6278bf3990e84b4ddc20ac79f52f4f", kill_on_drop: false }`
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]    Compiling heck v0.5.0
[INFO] [stderr]     Checking memchr v2.8.0
[INFO] [stderr]    Compiling pros-sys v0.8.1
[INFO] [stderr]     Checking async-task v4.7.1
[INFO] [stderr]     Checking waker-fn v1.2.0
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]     Checking lock_api v0.4.14
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]     Checking no_std_io v0.6.0
[INFO] [stderr]    Compiling snafu-derive v0.8.9
[INFO] [stderr]     Checking snafu v0.8.9
[INFO] [stderr]     Checking pros-core v0.1.2
[INFO] [stderr]     Checking pros-async v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.35s
[INFO] running `Command { std: "docker" "inspect" "190d85bb8947fa60740f0a63e1b693fe9e6278bf3990e84b4ddc20ac79f52f4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "190d85bb8947fa60740f0a63e1b693fe9e6278bf3990e84b4ddc20ac79f52f4f", kill_on_drop: false }`
[INFO] [stdout] 190d85bb8947fa60740f0a63e1b693fe9e6278bf3990e84b4ddc20ac79f52f4f