[INFO] fetching crate rusting 0.2.0...
[INFO] testing rusting-0.2.0 against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] extracting crate rusting 0.2.0 into /workspace/builds/worker-83/source
[INFO] validating manifest of crates.io crate rusting 0.2.0 on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rusting 0.2.0
[INFO] finished tweaking crates.io crate rusting 0.2.0
[INFO] tweaked toml for crates.io crate rusting 0.2.0 written to /workspace/builds/worker-83/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "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-83/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/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" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ac2fa30ab25b1175737bc497a064f9337e447fc91c7f004dc85e120838dc0da3
[INFO] running `Command { std: "docker" "start" "-a" "ac2fa30ab25b1175737bc497a064f9337e447fc91c7f004dc85e120838dc0da3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ac2fa30ab25b1175737bc497a064f9337e447fc91c7f004dc85e120838dc0da3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac2fa30ab25b1175737bc497a064f9337e447fc91c7f004dc85e120838dc0da3", kill_on_drop: false }`
[INFO] [stdout] ac2fa30ab25b1175737bc497a064f9337e447fc91c7f004dc85e120838dc0da3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/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" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7801b34ac40b77389c207be5a7f4f37fc00f17635326325059914f6dedb6988a
[INFO] running `Command { std: "docker" "start" "-a" "7801b34ac40b77389c207be5a7f4f37fc00f17635326325059914f6dedb6988a", kill_on_drop: false }`
[INFO] [stderr]    Compiling rusting v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]  --> src/lib.rs:4:16
[INFO] [stdout]   |
[INFO] [stdout] 4 |     fn rust(self, F) -> T;
[INFO] [stdout]   |                   ^ help: try naming the parameter or explicitly ignoring it: `_: F`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[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] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.10s
[INFO] running `Command { std: "docker" "inspect" "7801b34ac40b77389c207be5a7f4f37fc00f17635326325059914f6dedb6988a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7801b34ac40b77389c207be5a7f4f37fc00f17635326325059914f6dedb6988a", kill_on_drop: false }`
[INFO] [stdout] 7801b34ac40b77389c207be5a7f4f37fc00f17635326325059914f6dedb6988a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/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" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fdc4a5433e339531b054954e5adf33a410e3b2e54b3e6c0a7ad51c7041f08d72
[INFO] running `Command { std: "docker" "start" "-a" "fdc4a5433e339531b054954e5adf33a410e3b2e54b3e6c0a7ad51c7041f08d72", kill_on_drop: false }`
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]  --> src/lib.rs:4:16
[INFO] [stdout]   |
[INFO] [stdout] 4 |     fn rust(self, F) -> T;
[INFO] [stdout]   |                   ^ help: try naming the parameter or explicitly ignoring it: `_: F`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rusting v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]  --> src/lib.rs:4:16
[INFO] [stdout]   |
[INFO] [stdout] 4 |     fn rust(self, F) -> T;
[INFO] [stdout]   |                   ^ help: try naming the parameter or explicitly ignoring it: `_: F`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[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] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.44s
[INFO] running `Command { std: "docker" "inspect" "fdc4a5433e339531b054954e5adf33a410e3b2e54b3e6c0a7ad51c7041f08d72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fdc4a5433e339531b054954e5adf33a410e3b2e54b3e6c0a7ad51c7041f08d72", kill_on_drop: false }`
[INFO] [stdout] fdc4a5433e339531b054954e5adf33a410e3b2e54b3e6c0a7ad51c7041f08d72
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/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" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 674b9797fecfcdee08dc02427d76a54e4de43aec132ecaa6572a962ceca7ab49
[INFO] running `Command { std: "docker" "start" "-a" "674b9797fecfcdee08dc02427d76a54e4de43aec132ecaa6572a962ceca7ab49", kill_on_drop: false }`
[INFO] [stderr] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stderr]  --> src/lib.rs:4:16
[INFO] [stderr]   |
[INFO] [stderr] 4 |     fn rust(self, F) -> T;
[INFO] [stderr]   |                   ^ help: try naming the parameter or explicitly ignoring it: `_: F`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stderr]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stderr]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stderr] 
[INFO] [stderr] warning: `rusting` (lib) generated 1 warning
[INFO] [stderr] warning: `rusting` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rusting-e1162aaac4a24341)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rusting
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "674b9797fecfcdee08dc02427d76a54e4de43aec132ecaa6572a962ceca7ab49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "674b9797fecfcdee08dc02427d76a54e4de43aec132ecaa6572a962ceca7ab49", kill_on_drop: false }`
[INFO] [stdout] 674b9797fecfcdee08dc02427d76a54e4de43aec132ecaa6572a962ceca7ab49