[INFO] crate rust-lapper 0.3.9 is already in cache
[INFO] testing rust-lapper-0.3.9 against 1.38.0 for beta-1.39-1
[INFO] extracting crate rust-lapper 0.3.9 into work/builds/worker-2/source
[INFO] validating manifest of crates.io crate rust-lapper 0.3.9 on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate rust-lapper 0.3.9
[INFO] finished tweaking crates.io crate rust-lapper 0.3.9
[INFO] tweaked toml for crates.io crate rust-lapper 0.3.9 written to work/builds/worker-2/source/Cargo.toml
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] 843b073665fc8fb2c53f4686d684918da0969807a106ba5dfe2d3075b075807a
[INFO] running `"docker" "start" "-a" "843b073665fc8fb2c53f4686d684918da0969807a106ba5dfe2d3075b075807a"`
[INFO] [stderr]    Compiling rust-lapper v0.3.9 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.52s
[INFO] running `"docker" "inspect" "843b073665fc8fb2c53f4686d684918da0969807a106ba5dfe2d3075b075807a"`
[INFO] running `"docker" "rm" "-f" "843b073665fc8fb2c53f4686d684918da0969807a106ba5dfe2d3075b075807a"`
[INFO] [stdout] 843b073665fc8fb2c53f4686d684918da0969807a106ba5dfe2d3075b075807a
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] e2e8fd37515bbd3c56eaf7cd3c82f58059bf4085b7fe299028e1b502cd70f7cd
[INFO] running `"docker" "start" "-a" "e2e8fd37515bbd3c56eaf7cd3c82f58059bf4085b7fe299028e1b502cd70f7cd"`
[INFO] [stderr]    Compiling bio v0.28.2
[INFO] [stderr]    Compiling superslice v1.0.0
[INFO] [stderr]    Compiling cpu-time v0.1.0
[INFO] [stderr]    Compiling strum_macros v0.13.0
[INFO] [stderr]    Compiling rand_xoshiro v0.3.1
[INFO] [stderr]    Compiling rand_os v0.2.2
[INFO] [stderr]    Compiling nested_intervals v0.2.0
[INFO] [stderr]    Compiling criterion v0.3.0
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stderr]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/nested_intervals-0.2.0/src/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(nll)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: Could not compile `nested_intervals`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "e2e8fd37515bbd3c56eaf7cd3c82f58059bf4085b7fe299028e1b502cd70f7cd"`
[INFO] running `"docker" "rm" "-f" "e2e8fd37515bbd3c56eaf7cd3c82f58059bf4085b7fe299028e1b502cd70f7cd"`
[INFO] [stdout] e2e8fd37515bbd3c56eaf7cd3c82f58059bf4085b7fe299028e1b502cd70f7cd