[INFO] fetching crate random 0.12.2...
[INFO] checking random-0.12.2 against try#8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346 for pr-86194
[INFO] extracting crate random 0.12.2 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate random 0.12.2 on toolchain 8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate random 0.12.2
[INFO] finished tweaking crates.io crate random 0.12.2
[INFO] tweaked toml for crates.io crate random 0.12.2 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346" "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" "+8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4d0c8a998e5d22bdddc7a7235839ba54c5eabd63d30a899093a7338d086222ac
[INFO] running `Command { std: "docker" "start" "-a" "4d0c8a998e5d22bdddc7a7235839ba54c5eabd63d30a899093a7338d086222ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4d0c8a998e5d22bdddc7a7235839ba54c5eabd63d30a899093a7338d086222ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d0c8a998e5d22bdddc7a7235839ba54c5eabd63d30a899093a7338d086222ac", kill_on_drop: false }`
[INFO] [stdout] 4d0c8a998e5d22bdddc7a7235839ba54c5eabd63d30a899093a7338d086222ac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ddef21e9d31a34293a61c076ba45e4d1e0cf22dc41cc59f138974781a5fc8227
[INFO] running `Command { std: "docker" "start" "-a" "ddef21e9d31a34293a61c076ba45e4d1e0cf22dc41cc59f138974781a5fc8227", kill_on_drop: false }`
[INFO] [stderr]     Checking random v0.12.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]  --> src/value.rs:6:16
[INFO] [stdout]   |
[INFO] [stdout] 6 |     fn read<S>(&mut S) -> Self where S: Source;
[INFO] [stdout]   |                ^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &mut S`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout]   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
[INFO] [stdout]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]  --> src/value.rs:6:16
[INFO] [stdout]   |
[INFO] [stdout] 6 |     fn read<S>(&mut S) -> Self where S: Source;
[INFO] [stdout]   |                ^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &mut S`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout]   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
[INFO] [stdout]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[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 0.19s
[INFO] running `Command { std: "docker" "inspect" "ddef21e9d31a34293a61c076ba45e4d1e0cf22dc41cc59f138974781a5fc8227", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ddef21e9d31a34293a61c076ba45e4d1e0cf22dc41cc59f138974781a5fc8227", kill_on_drop: false }`
[INFO] [stdout] ddef21e9d31a34293a61c076ba45e4d1e0cf22dc41cc59f138974781a5fc8227