[INFO] fetching crate rockstar 0.0.1-alpha...
[INFO] checking rockstar-0.0.1-alpha against master#936f2600b6c903b04387f74ed5cbce88bb06d243 for pr-91141
[INFO] extracting crate rockstar 0.0.1-alpha into /workspace/builds/worker-48/source
[INFO] validating manifest of crates.io crate rockstar 0.0.1-alpha on toolchain 936f2600b6c903b04387f74ed5cbce88bb06d243
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rockstar 0.0.1-alpha
[INFO] finished tweaking crates.io crate rockstar 0.0.1-alpha
[INFO] tweaked toml for crates.io crate rockstar 0.0.1-alpha written to /workspace/builds/worker-48/source/Cargo.toml
[INFO] crate crates.io crate rockstar 0.0.1-alpha already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-48/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-48/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8448625c37d729e59dc1a1badd405604515ed64c9158ccf4cb84047cc82c2b41
[INFO] running `Command { std: "docker" "start" "-a" "8448625c37d729e59dc1a1badd405604515ed64c9158ccf4cb84047cc82c2b41", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8448625c37d729e59dc1a1badd405604515ed64c9158ccf4cb84047cc82c2b41", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8448625c37d729e59dc1a1badd405604515ed64c9158ccf4cb84047cc82c2b41", kill_on_drop: false }`
[INFO] [stdout] 8448625c37d729e59dc1a1badd405604515ed64c9158ccf4cb84047cc82c2b41
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-48/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-48/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 122f3fe882c10a175d32eb81a5ef6030564e465bb0d120b52b775b14be66acf4
[INFO] running `Command { std: "docker" "start" "-a" "122f3fe882c10a175d32eb81a5ef6030564e465bb0d120b52b775b14be66acf4", kill_on_drop: false }`
[INFO] [stderr]     Checking rockstar v0.0.1-alpha (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.07s
[INFO] running `Command { std: "docker" "inspect" "122f3fe882c10a175d32eb81a5ef6030564e465bb0d120b52b775b14be66acf4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "122f3fe882c10a175d32eb81a5ef6030564e465bb0d120b52b775b14be66acf4", kill_on_drop: false }`
[INFO] [stdout] 122f3fe882c10a175d32eb81a5ef6030564e465bb0d120b52b775b14be66acf4