[INFO] updating cached repository https://github.com/krgn/bufr
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 3c6858cea0338ed2b253bdd668a23d21defb75f8
[INFO] checking krgn/bufr against master#fdc0011561c6365c596dfd8fa1ef388162bc89c7 for pr-66504-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkrgn%2Fbufr" "/workspace/builds/worker-4/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/krgn/bufr on toolchain fdc0011561c6365c596dfd8fa1ef388162bc89c7
[INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/krgn/bufr
[INFO] finished tweaking git repo https://github.com/krgn/bufr
[INFO] tweaked toml for git repo https://github.com/krgn/bufr written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/krgn/bufr already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 0476261b8e71071b688ae42160281733d4b83d39abc5fa3e0bdf90fb1d33d134
[INFO] running `"docker" "start" "-a" "0476261b8e71071b688ae42160281733d4b83d39abc5fa3e0bdf90fb1d33d134"`
[INFO] [stderr]     Checking rand_core v0.3.0
[INFO] [stderr]     Checking memchr v2.1.2
[INFO] [stderr]     Checking backtrace-sys v0.1.28
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking num_cpus v1.9.0
[INFO] [stderr]     Checking rand v0.4.5
[INFO] [stderr]    Compiling syn v0.15.24
[INFO] [stderr]     Checking itertools-num v0.1.3
[INFO] [stderr]     Checking backtrace v0.3.13
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_os v0.1.1
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_chacha v0.1.1
[INFO] [stderr]     Checking rand_pcg v0.1.1
[INFO] [stderr]     Checking aho-corasick v0.6.9
[INFO] [stderr]     Checking csv-core v0.1.5
[INFO] [stderr]     Checking rand v0.6.4
[INFO] [stderr]     Checking criterion-stats v0.3.0
[INFO] [stderr]     Checking csv v1.0.5
[INFO] [stderr]     Checking regex v1.1.0
[INFO] [stderr]     Checking env_logger v0.5.13
[INFO] [stderr]     Checking handlebars v1.0.5
[INFO] [stderr]     Checking quickcheck v0.8.0
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]    Compiling serde_derive v1.0.84
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking criterion-plot v0.2.7
[INFO] [stderr]     Checking criterion v0.2.7
[INFO] [stderr]     Checking bufr v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: the feature `result_map_or_else` has been stable since 1.41.0 and no longer requires an attribute to enable
[INFO] [stderr]  --> src/lib.rs:2:12
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(result_map_or_else)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(stable_features)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `result_map_or_else` has been stable since 1.41.0 and no longer requires an attribute to enable
[INFO] [stderr]  --> src/lib.rs:2:12
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(result_map_or_else)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(stable_features)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `bufr::Mgr`
[INFO] [stderr]  --> benches/arc-mutex-vec.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use bufr::Mgr;
[INFO] [stderr]   |     ^^^^^^^^^ no `Mgr` in the root
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'rand::XorShiftRng': import from rand_xorshift crate instead
[INFO] [stderr]   --> benches/arc-mutex-vec.rs:11:30
[INFO] [stderr]    |
[INFO] [stderr] 11 | use rand::{Rng, SeedableRng, XorShiftRng};
[INFO] [stderr]    |                              ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0432`.
[INFO] [stderr] warning: use of deprecated item 'rand::XorShiftRng': import from rand_xorshift crate instead
[INFO] [stderr]   --> benches/mspc-queue.rs:10:30
[INFO] [stderr]    |
[INFO] [stderr] 10 | use rand::{Rng, SeedableRng, XorShiftRng};
[INFO] [stderr]    |                              ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error: could not compile `bufr`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "0476261b8e71071b688ae42160281733d4b83d39abc5fa3e0bdf90fb1d33d134"`
[INFO] running `"docker" "rm" "-f" "0476261b8e71071b688ae42160281733d4b83d39abc5fa3e0bdf90fb1d33d134"`
[INFO] [stdout] 0476261b8e71071b688ae42160281733d4b83d39abc5fa3e0bdf90fb1d33d134