[INFO] updating cached repository https://github.com/stereobooster/natural_sort-pgxn
[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] e252d44f77e2cc20fc721d5222ff82cb4b171dc6
[INFO] testing stereobooster/natural_sort-pgxn against 1.44.0 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstereobooster%2Fnatural_sort-pgxn" "/workspace/builds/worker-5/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/stereobooster/natural_sort-pgxn on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/stereobooster/natural_sort-pgxn
[INFO] finished tweaking git repo https://github.com/stereobooster/natural_sort-pgxn
[INFO] tweaked toml for git repo https://github.com/stereobooster/natural_sort-pgxn written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/stereobooster/natural_sort-pgxn already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] warning: path `/workspace/builds/worker-5/source/src/natural_sort.rs` was erroneously implicitly accepted for library `natural_sort`,
[INFO] [stderr] please rename the file to `src/lib.rs` or set lib.path in Cargo.toml
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] error: the lock file /workspace/builds/worker-5/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Updating git repository `https://github.com/lifthrasiir/rust-natord.git`
[INFO] [stderr]     Updating git repository `https://github.com/jeff-davis/postgres-extension.rs.git`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] warning: path `/workspace/builds/worker-5/source/src/natural_sort.rs` was erroneously implicitly accepted for library `natural_sort`,
[INFO] [stderr] please rename the file to `src/lib.rs` or set lib.path in Cargo.toml
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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=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" "+1.44.0" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 3e08b3c6bc5338e304e1a4eae82d280db93601b7b604c7549b2df1629c6183de
[INFO] running `"docker" "start" "-a" "3e08b3c6bc5338e304e1a4eae82d280db93601b7b604c7549b2df1629c6183de"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: path `/opt/rustwide/workdir/src/natural_sort.rs` was erroneously implicitly accepted for library `natural_sort`,
[INFO] [stderr] please rename the file to `src/lib.rs` or set lib.path in Cargo.toml
[INFO] [stderr]    Compiling postgres_extension_macros v0.0.1 (https://github.com/jeff-davis/postgres-extension.rs.git?branch=fixes#5b365177)
[INFO] [stderr]    Compiling natord v1.0.9 (https://github.com/lifthrasiir/rust-natord.git#93e5f0ac)
[INFO] [stderr]    Compiling postgres_extension v0.0.1 (https://github.com/jeff-davis/postgres-extension.rs.git?branch=fixes#5b365177)
[INFO] [stderr]    Compiling natural_sort v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0557]: feature has been removed
[INFO] [stderr]  --> src/natural_sort.rs:1:18
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(libc, custom_attribute, plugin)]
[INFO] [stderr]   |                  ^^^^^^^^^^^^^^^^ feature has been removed
[INFO] [stderr]   |
[INFO] [stderr]   = note: removed in favor of `#![register_tool]` and `#![register_attr]`
[INFO] [stderr] 
[INFO] [stderr] error[E0457]: plugin `postgres_extension_macros` only found in rlib format, but must be available in dylib format
[INFO] [stderr]  --> src/natural_sort.rs:2:11
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![plugin(postgres_extension_macros)]
[INFO] [stderr]   |           ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: cannot find attribute `pg_export` in this scope
[INFO] [stderr]   --> src/natural_sort.rs:20:3
[INFO] [stderr]    |
[INFO] [stderr] 20 | #[pg_export]
[INFO] [stderr]    |   ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stderr]  --> src/natural_sort.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(libc, custom_attribute, plugin)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated attribute `plugin`: compiler plugins are deprecated. See https://github.com/rust-lang/rust/pull/64675
[INFO] [stderr]  --> src/natural_sort.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![plugin(postgres_extension_macros)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: may be removed in a future compiler version
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'rustc_private': this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via `Cargo.toml` instead?
[INFO] [stderr]   --> src/natural_sort.rs:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | extern crate libc;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #27812 <https://github.com/rust-lang/rust/issues/27812> for more information
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'rustc_private': this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via `Cargo.toml` instead?
[INFO] [stderr]   --> src/natural_sort.rs:12:12
[INFO] [stderr]    |
[INFO] [stderr] 12 | use libc::{c_int};
[INFO] [stderr]    |            ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #27812 <https://github.com/rust-lang/rust/issues/27812> for more information
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'rustc_private': this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via `Cargo.toml` instead?
[INFO] [stderr]   --> src/natural_sort.rs:18:1
[INFO] [stderr]    |
[INFO] [stderr] 18 | pg_module!(version: 90400);
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #27812 <https://github.com/rust-lang/rust/issues/27812> for more information
[INFO] [stderr]    = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'rustc_private': this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via `Cargo.toml` instead?
[INFO] [stderr]   --> src/natural_sort.rs:21:51
[INFO] [stderr]    |
[INFO] [stderr] 21 | pub fn natural_compare(a: VarChar, b: VarChar) -> c_int {
[INFO] [stderr]    |                                                   ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #27812 <https://github.com/rust-lang/rust/issues/27812> for more information
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 8 previous errors; 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0554, E0557, E0658.
[INFO] [stderr] For more information about an error, try `rustc --explain E0554`.
[INFO] [stderr] error: could not compile `natural_sort`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "3e08b3c6bc5338e304e1a4eae82d280db93601b7b604c7549b2df1629c6183de"`
[INFO] running `"docker" "rm" "-f" "3e08b3c6bc5338e304e1a4eae82d280db93601b7b604c7549b2df1629c6183de"`
[INFO] [stdout] 3e08b3c6bc5338e304e1a4eae82d280db93601b7b604c7549b2df1629c6183de