[INFO] cloning repository https://github.com/jacobrosenthal/rust-ffi-bench
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jacobrosenthal/rust-ffi-bench" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjacobrosenthal%2Frust-ffi-bench", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjacobrosenthal%2Frust-ffi-bench'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e85828968a52a6415b19ea2b37f404f2f25ea8f2
[INFO] testing jacobrosenthal/rust-ffi-bench against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjacobrosenthal%2Frust-ffi-bench" "/workspace/builds/worker-27/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-27/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jacobrosenthal/rust-ffi-bench on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jacobrosenthal/rust-ffi-bench
[INFO] finished tweaking git repo https://github.com/jacobrosenthal/rust-ffi-bench
[INFO] tweaked toml for git repo https://github.com/jacobrosenthal/rust-ffi-bench written to /workspace/builds/worker-27/source/Cargo.toml
[INFO] crate git repo https://github.com/jacobrosenthal/rust-ffi-bench already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://github.com/lifthrasiir/rust-encoding`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ucd-util v0.1.2
[INFO] [stderr]   Downloaded memchr v2.1.1
[INFO] [stderr]   Downloaded regex-syntax v0.6.3
[INFO] [stderr]   Downloaded regex v1.0.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 36f9c06df1478157ab5d3cf82a15c8e7fa25bb4e1f98c44177f456335acd9738
[INFO] running `Command { std: "docker" "start" "-a" "36f9c06df1478157ab5d3cf82a15c8e7fa25bb4e1f98c44177f456335acd9738", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "36f9c06df1478157ab5d3cf82a15c8e7fa25bb4e1f98c44177f456335acd9738", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36f9c06df1478157ab5d3cf82a15c8e7fa25bb4e1f98c44177f456335acd9738", kill_on_drop: false }`
[INFO] [stdout] 36f9c06df1478157ab5d3cf82a15c8e7fa25bb4e1f98c44177f456335acd9738
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 57da13161c0526cdf0366210bcd149b09e70620ab872c71db600ac27aff6c794
[INFO] running `Command { std: "docker" "start" "-a" "57da13161c0526cdf0366210bcd149b09e70620ab872c71db600ac27aff6c794", kill_on_drop: false }`
[INFO] [stderr]    Compiling encoding_index_tests v0.1.5 (https://github.com/lifthrasiir/rust-encoding#eb3d3c30)
[INFO] [stderr]    Compiling encoding-types v0.2.0 (https://github.com/lifthrasiir/rust-encoding#eb3d3c30)
[INFO] [stderr]    Compiling byteorder v1.2.7
[INFO] [stderr]    Compiling encoding-index-japanese v1.20141219.6 (https://github.com/lifthrasiir/rust-encoding#eb3d3c30)
[INFO] [stderr]    Compiling encoding-index-korean v1.20141219.6 (https://github.com/lifthrasiir/rust-encoding#eb3d3c30)
[INFO] [stderr]    Compiling encoding-index-simpchinese v1.20160120.0 (https://github.com/lifthrasiir/rust-encoding#eb3d3c30)
[INFO] [stderr]    Compiling encoding-index-tradchinese v1.20141219.6 (https://github.com/lifthrasiir/rust-encoding#eb3d3c30)
[INFO] [stderr]    Compiling encoding-index-singlebyte v1.20160120.0 (https://github.com/lifthrasiir/rust-encoding#eb3d3c30)
[INFO] [stderr]    Compiling encoding v0.3.0-dev (https://github.com/lifthrasiir/rust-encoding#eb3d3c30)
[INFO] [stderr]    Compiling ffi-bench v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(uniform_paths)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `uniform_paths` has been stable since 1.32.0 and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(test)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(slice_patterns)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `slice_patterns` has been stable since 1.42.0 and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | #![feature(unsized_locals)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `unsized_locals` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> src/main.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | #![feature(unsized_locals)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout]   = note: see issue #48055 <https://github.com/rust-lang/rust/issues/48055> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/flt.rs:42:9
[INFO] [stdout]    |
[INFO] [stdout] 42 |         ((value as u32) << shift)
[INFO] [stdout]    |         ^                       ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 42 -         ((value as u32) << shift)
[INFO] [stdout] 42 +         (value as u32) << shift
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate-level attribute should be in the root module
[INFO] [stdout]  --> src/flt.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(slice_patterns)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate-level attribute should be in the root module
[INFO] [stdout]  --> src/flt.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(test)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors; 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ffi-bench` due to 5 previous errors; 4 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "57da13161c0526cdf0366210bcd149b09e70620ab872c71db600ac27aff6c794", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "57da13161c0526cdf0366210bcd149b09e70620ab872c71db600ac27aff6c794", kill_on_drop: false }`
[INFO] [stdout] 57da13161c0526cdf0366210bcd149b09e70620ab872c71db600ac27aff6c794