[INFO] cloning repository https://github.com/udoprog/futures-option
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/udoprog/futures-option" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fudoprog%2Ffutures-option", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fudoprog%2Ffutures-option'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2ef220dc55cbc86eeccb2f7d4eb527d19dc8b9e8
[INFO] checking udoprog/futures-option against master#936f2600b6c903b04387f74ed5cbce88bb06d243 for pr-91141
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fudoprog%2Ffutures-option" "/workspace/builds/worker-73/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-73/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/udoprog/futures-option 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 git repo https://github.com/udoprog/futures-option
[INFO] finished tweaking git repo https://github.com/udoprog/futures-option
[INFO] tweaked toml for git repo https://github.com/udoprog/futures-option written to /workspace/builds/worker-73/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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-73/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/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] 93c6c72f14bb1de7bc0238fd1da1d819d66c62c6ebb791455561b0ff8a6998c8
[INFO] running `Command { std: "docker" "start" "-a" "93c6c72f14bb1de7bc0238fd1da1d819d66c62c6ebb791455561b0ff8a6998c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "93c6c72f14bb1de7bc0238fd1da1d819d66c62c6ebb791455561b0ff8a6998c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93c6c72f14bb1de7bc0238fd1da1d819d66c62c6ebb791455561b0ff8a6998c8", kill_on_drop: false }`
[INFO] [stdout] 93c6c72f14bb1de7bc0238fd1da1d819d66c62c6ebb791455561b0ff8a6998c8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/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] f50646fe0f19a804da94efa5c5598729b7b3330d84f77bdcd3395450d3ca2a2d
[INFO] running `Command { std: "docker" "start" "-a" "f50646fe0f19a804da94efa5c5598729b7b3330d84f77bdcd3395450d3ca2a2d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling libc v0.2.108
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.82
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]     Checking smallvec v1.7.0
[INFO] [stderr]    Compiling futures-core v0.3.18
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]     Checking bytes v1.1.0
[INFO] [stderr]     Checking async-fuse v0.11.2 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling tokio v1.14.0
[INFO] [stderr]     Checking lock_api v0.4.5
[INFO] [stderr]     Checking instant v0.1.12
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]     Checking mio v0.7.14
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]    Compiling tokio-macros v1.6.0
[INFO] [stderr]    Compiling async-stream-impl v0.3.2
[INFO] [stderr]     Checking async-stream v0.3.2
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 06s
[INFO] running `Command { std: "docker" "inspect" "f50646fe0f19a804da94efa5c5598729b7b3330d84f77bdcd3395450d3ca2a2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f50646fe0f19a804da94efa5c5598729b7b3330d84f77bdcd3395450d3ca2a2d", kill_on_drop: false }`
[INFO] [stdout] f50646fe0f19a804da94efa5c5598729b7b3330d84f77bdcd3395450d3ca2a2d