[INFO] fetching crate sf 0.1.1...
[INFO] checking sf-0.1.1 against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] extracting crate sf 0.1.1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate sf 0.1.1 on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sf 0.1.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate sf 0.1.1
[INFO] tweaked toml for crates.io crate sf 0.1.1 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a8747a5b1494e35f6798c18e44fe7c72ad109fc8232c4c5e50e63ea186927896
[INFO] running `Command { std: "docker" "start" "-a" "a8747a5b1494e35f6798c18e44fe7c72ad109fc8232c4c5e50e63ea186927896", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a8747a5b1494e35f6798c18e44fe7c72ad109fc8232c4c5e50e63ea186927896", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a8747a5b1494e35f6798c18e44fe7c72ad109fc8232c4c5e50e63ea186927896", kill_on_drop: false }`
[INFO] [stdout] a8747a5b1494e35f6798c18e44fe7c72ad109fc8232c4c5e50e63ea186927896
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ea9cc063fef167cadeea9d3f9bf1156bb2a316ccb3b03154cc7f0e6592060170
[INFO] running `Command { std: "docker" "start" "-a" "ea9cc063fef167cadeea9d3f9bf1156bb2a316ccb3b03154cc7f0e6592060170", kill_on_drop: false }`
[INFO] [stderr]     Checking sf v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/errors.rs:21:32
[INFO] [stdout]    |
[INFO] [stdout] 21 |     fn cause(&self) -> Option<&StdError> {
[INFO] [stdout]    |                                ^^^^^^^^ help: use `dyn`: `dyn StdError`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/errors.rs:21:32
[INFO] [stdout]    |
[INFO] [stdout] 21 |     fn cause(&self) -> Option<&StdError> {
[INFO] [stdout]    |                                ^^^^^^^^ help: use `dyn`: `dyn StdError`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.38s
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ea9cc063fef167cadeea9d3f9bf1156bb2a316ccb3b03154cc7f0e6592060170", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea9cc063fef167cadeea9d3f9bf1156bb2a316ccb3b03154cc7f0e6592060170", kill_on_drop: false }`
[INFO] [stdout] ea9cc063fef167cadeea9d3f9bf1156bb2a316ccb3b03154cc7f0e6592060170