[INFO] updating cached repository https://github.com/sile/dg
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/mnt/big/crater/work/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] 0ba3f6e789448c0c02fd7b8d4dbcdb3faf74603a
[INFO] checking sile/dg against master#9b9d2aff8de4d499b4ba7ca406e000f8d3754ea7 for pr-64564
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsile%2Fdg" "work/builds/worker-2/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sile/dg on toolchain 9b9d2aff8de4d499b4ba7ca406e000f8d3754ea7-alt
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+9b9d2aff8de4d499b4ba7ca406e000f8d3754ea7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/sile/dg
[INFO] finished tweaking git repo https://github.com/sile/dg
[INFO] tweaked toml for git repo https://github.com/sile/dg written to work/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/sile/dg already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+9b9d2aff8de4d499b4ba7ca406e000f8d3754ea7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/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=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" "+9b9d2aff8de4d499b4ba7ca406e000f8d3754ea7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 6c9fed34fa8790eaed3a40a5c225a5a20fe1342ef54157d14890e80113e6c1a5
[INFO] running `"docker" "start" "-a" "6c9fed34fa8790eaed3a40a5c225a5a20fe1342ef54157d14890e80113e6c1a5"`
[INFO] [stderr]    Compiling num-traits v0.2.4
[INFO] [stderr]    Compiling num-integer v0.1.38
[INFO] [stderr]     Checking nom v2.2.1
[INFO] [stderr]     Checking cfg-if v0.1.3
[INFO] [stderr]     Checking crossbeam v0.2.12
[INFO] [stderr]    Compiling serde v1.0.66
[INFO] [stderr]     Checking trackable v0.2.17
[INFO] [stderr]     Checking atomic_immut v0.1.4
[INFO] [stderr]     Checking lazy_static v1.0.1
[INFO] [stderr]     Checking slog v2.2.3
[INFO] [stderr]     Checking rand_core v0.2.1
[INFO] [stderr]     Checking nbchan v0.1.2
[INFO] [stderr]     Checking splay_tree v0.2.10
[INFO] [stderr]     Checking take_mut v0.2.2
[INFO] [stderr]    Compiling proc-macro2 v0.4.6
[INFO] [stderr]     Checking time v0.1.40
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking inotify-sys v0.1.2
[INFO] [stderr]     Checking term v0.5.1
[INFO] [stderr]     Checking num_cpus v1.8.0
[INFO] [stderr]     Checking isatty v0.1.8
[INFO] [stderr]     Checking net2 v0.2.32
[INFO] [stderr]     Checking log v0.4.2
[INFO] [stderr]     Checking rand v0.5.1
[INFO] [stderr]    Compiling rustc_version v0.2.2
[INFO] [stderr]     Checking slog-scope v4.0.1
[INFO] [stderr]     Checking thread_local v0.3.5
[INFO] [stderr]     Checking inotify v0.5.1
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking mio v0.6.14
[INFO] [stderr]    Compiling quote v0.6.3
[INFO] [stderr]     Checking slog-async v2.3.0
[INFO] [stderr]    Compiling syn v0.14.2
[INFO] [stderr]     Checking slog-stdlog v3.0.2
[INFO] [stderr]    Compiling procinfo v0.4.2
[INFO] [stderr]     Checking fibers v0.1.10
[INFO] [stderr]     Checking scalable_cuckoo_filter v0.1.2
[INFO] [stderr]     Checking chrono v0.4.3
[INFO] [stderr]     Checking fibers_inotify v0.1.1
[INFO] [stderr]     Checking slog-term v2.4.0
[INFO] [stderr]    Compiling serde_derive v1.0.66
[INFO] [stderr]     Checking prometrics v0.1.11
[INFO] [stderr]     Checking tasque v0.1.4
[INFO] [stderr]     Checking fibers_tasque v0.1.1
[INFO] [stderr]     Checking sloggers v0.2.7
[INFO] [stderr]     Checking dg v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/error.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | derive_traits_for_trackable_error_newtype!(Error, ErrorKind);
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/error.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | derive_traits_for_trackable_error_newtype!(Error, ErrorKind);
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 56.06s
[INFO] running `"docker" "inspect" "6c9fed34fa8790eaed3a40a5c225a5a20fe1342ef54157d14890e80113e6c1a5"`
[INFO] running `"docker" "rm" "-f" "6c9fed34fa8790eaed3a40a5c225a5a20fe1342ef54157d14890e80113e6c1a5"`
[INFO] [stdout] 6c9fed34fa8790eaed3a40a5c225a5a20fe1342ef54157d14890e80113e6c1a5