Dec 17 11:54:44.929 INFO checking withoutboats/bpb against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 17 11:54:44.929 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-5/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/withoutboats/bpb:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 17 11:54:45.592 INFO [stdout] ee209c4a4c6d1415270fdd13e1f921a0d8f0c093a6f4a5b581b82d55e76a04fb
Dec 17 11:54:45.594 INFO running `"docker" "start" "-a" "ee209c4a4c6d1415270fdd13e1f921a0d8f0c093a6f4a5b581b82d55e76a04fb"`
Dec 17 11:54:47.375 INFO [stderr] warning: the cargo feature `edition` is now stable and is no longer necessary to be listed in the manifest
Dec 17 11:54:47.375 INFO [stderr] warning: the cargo feature `rename-dependency` is now stable and is no longer necessary to be listed in the manifest
Dec 17 11:54:47.501 INFO [stderr]    Compiling libc v0.2.42
Dec 17 11:54:47.501 INFO [stderr]    Compiling rand_core v0.2.1
Dec 17 11:54:47.501 INFO [stderr]    Compiling byteorder v1.2.3
Dec 17 11:54:47.502 INFO [stderr]    Compiling subtle v0.6.3
Dec 17 11:54:47.502 INFO [stderr]     Checking arrayref v0.3.4
Dec 17 11:54:47.509 INFO [stderr]    Compiling clear_on_drop v0.2.3
Dec 17 11:54:47.516 INFO [stderr]    Compiling proc-macro2 v0.4.6
Dec 17 11:54:48.031 INFO [stderr]     Checking rand v0.5.4
Dec 17 11:54:48.644 INFO [stderr]     Checking base64 v0.9.2
Dec 17 11:54:48.948 INFO [stderr]    Compiling typenum v1.10.0
Dec 17 11:54:50.336 INFO [stderr]     Checking block-buffer v0.3.3
Dec 17 11:54:50.412 INFO [stderr]     Checking digest v0.7.5
Dec 17 11:54:50.604 INFO [stderr]     Checking backtrace v0.3.9
Dec 17 11:54:53.050 INFO [stderr]     Checking failure v0.1.1
Dec 17 11:54:53.560 INFO [stderr]     Checking sha2 v0.7.1
Dec 17 11:54:54.640 INFO [stderr]    Compiling quote v0.6.3
Dec 17 11:54:56.100 INFO [stderr]    Compiling syn v0.14.4
Dec 17 11:54:56.488 INFO [stderr]    Compiling generic-array v0.9.0
Dec 17 11:55:03.008 INFO [stderr]    Compiling curve25519-dalek v0.18.0
Dec 17 11:55:11.278 INFO [stderr]    Compiling serde_derive v1.0.70
Dec 17 11:55:12.276 INFO [stderr]     Checking ed25519-dalek v0.7.0
Dec 17 11:55:12.928 INFO [stderr]     Checking pbp v0.4.0
Dec 17 11:55:26.552 INFO [stderr]     Checking bpb v1.1.0 (/opt/crater/workdir)
Dec 17 11:55:26.620 INFO [stderr] warning[E0705]: the feature `rust_2018_preview` is included in the Rust 2018 edition
Dec 17 11:55:26.620 INFO [stderr]  --> src/main.rs:1:12
Dec 17 11:55:26.620 INFO [stderr]   |
Dec 17 11:55:26.620 INFO [stderr] 1 | #![feature(rust_2018_preview)]
Dec 17 11:55:26.620 INFO [stderr]   |            ^^^^^^^^^^^^^^^^^
Dec 17 11:55:26.620 INFO [stderr] 
Dec 17 11:55:26.668 INFO [stderr] warning[E0705]: the feature `rust_2018_preview` is included in the Rust 2018 edition
Dec 17 11:55:26.668 INFO [stderr]  --> src/main.rs:1:12
Dec 17 11:55:26.668 INFO [stderr]   |
Dec 17 11:55:26.668 INFO [stderr] 1 | #![feature(rust_2018_preview)]
Dec 17 11:55:26.668 INFO [stderr]   |            ^^^^^^^^^^^^^^^^^
Dec 17 11:55:26.668 INFO [stderr] 
Dec 17 11:55:27.349 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 40.00s
Dec 17 11:55:27.666 INFO running `"docker" "inspect" "ee209c4a4c6d1415270fdd13e1f921a0d8f0c093a6f4a5b581b82d55e76a04fb"`
Dec 17 11:55:27.781 INFO running `"docker" "rm" "-f" "ee209c4a4c6d1415270fdd13e1f921a0d8f0c093a6f4a5b581b82d55e76a04fb"`
Dec 17 11:55:27.883 INFO [stdout] ee209c4a4c6d1415270fdd13e1f921a0d8f0c093a6f4a5b581b82d55e76a04fb