[INFO] fetching crate buf_stream 0.2.0...
[INFO] checking buf_stream-0.2.0 against master#936f2600b6c903b04387f74ed5cbce88bb06d243 for pr-91141
[INFO] extracting crate buf_stream 0.2.0 into /workspace/builds/worker-47/source
[INFO] validating manifest of crates.io crate buf_stream 0.2.0 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 buf_stream 0.2.0
[INFO] finished tweaking crates.io crate buf_stream 0.2.0
[INFO] tweaked toml for crates.io crate buf_stream 0.2.0 written to /workspace/builds/worker-47/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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-47/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-47/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] 84196d64d40f07bc4609bdff5c8386d3ea44ba98efa1f1f56a1842c7004a5b7e
[INFO] running `Command { std: "docker" "start" "-a" "84196d64d40f07bc4609bdff5c8386d3ea44ba98efa1f1f56a1842c7004a5b7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "84196d64d40f07bc4609bdff5c8386d3ea44ba98efa1f1f56a1842c7004a5b7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84196d64d40f07bc4609bdff5c8386d3ea44ba98efa1f1f56a1842c7004a5b7e", kill_on_drop: false }`
[INFO] [stdout] 84196d64d40f07bc4609bdff5c8386d3ea44ba98efa1f1f56a1842c7004a5b7e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-47/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-47/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] fc50ee11fde4dbb5d7da50f8cf63f353c62e8910ffefa26b6f9a8101fe6022b0
[INFO] running `Command { std: "docker" "start" "-a" "fc50ee11fde4dbb5d7da50f8cf63f353c62e8910ffefa26b6f9a8101fe6022b0", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking buf_stream v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/lib.rs:111:23
[INFO] [stdout]     |
[INFO] [stdout] 111 |         error::Error::description(self.error())
[INFO] [stdout]     |                       ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/lib.rs:111:23
[INFO] [stdout]     |
[INFO] [stdout] 111 |         error::Error::description(self.error())
[INFO] [stdout]     |                       ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.79s
[INFO] running `Command { std: "docker" "inspect" "fc50ee11fde4dbb5d7da50f8cf63f353c62e8910ffefa26b6f9a8101fe6022b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc50ee11fde4dbb5d7da50f8cf63f353c62e8910ffefa26b6f9a8101fe6022b0", kill_on_drop: false }`
[INFO] [stdout] fc50ee11fde4dbb5d7da50f8cf63f353c62e8910ffefa26b6f9a8101fe6022b0