[INFO] updating cached repository stereobooster/natural_sort-pgxn
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/stereobooster/natural_sort-pgxn
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/stereobooster/natural_sort-pgxn" "work/ex/beta-1.38-1/sources/1.37.0/gh/stereobooster/natural_sort-pgxn"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/stereobooster/natural_sort-pgxn'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/stereobooster/natural_sort-pgxn" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/stereobooster/natural_sort-pgxn"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/stereobooster/natural_sort-pgxn'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e252d44f77e2cc20fc721d5222ff82cb4b171dc6
[INFO] sha for GitHub repo stereobooster/natural_sort-pgxn: e252d44f77e2cc20fc721d5222ff82cb4b171dc6
[INFO] validating manifest of stereobooster/natural_sort-pgxn on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of stereobooster/natural_sort-pgxn on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing stereobooster/natural_sort-pgxn
[INFO] finished frobbing stereobooster/natural_sort-pgxn
[INFO] frobbed toml for stereobooster/natural_sort-pgxn written to work/ex/beta-1.38-1/sources/1.37.0/gh/stereobooster/natural_sort-pgxn/Cargo.toml
[INFO] started frobbing stereobooster/natural_sort-pgxn
[INFO] finished frobbing stereobooster/natural_sort-pgxn
[INFO] frobbed toml for stereobooster/natural_sort-pgxn written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/stereobooster/natural_sort-pgxn/Cargo.toml
[INFO] crate stereobooster/natural_sort-pgxn already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/stereobooster/natural_sort-pgxn/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "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 `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "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 `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing stereobooster/natural_sort-pgxn against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/stereobooster/natural_sort-pgxn:/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=warn" "-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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 35066d4ee3dbc75a725d042727f4237d34b7d66bf9e455b0a5dcbca3451d1a01
[INFO] running `"docker" "start" "-a" "35066d4ee3dbc75a725d042727f4237d34b7d66bf9e455b0a5dcbca3451d1a01"`
[INFO] [stderr] warning: path `/opt/crater/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 natord v1.0.9 (https://github.com/lifthrasiir/rust-natord.git#93e5f0ac)
[INFO] [stderr]    Compiling postgres_extension_macros v0.0.1 (https://github.com/jeff-davis/postgres-extension.rs.git?branch=fixes#5b365177)
[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/crater/workdir)
[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[E0554]: `#![feature]` may not be used on the beta 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] 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: for more information, see https://github.com/rust-lang/rust/issues/27812
[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: for more information, see https://github.com/rust-lang/rust/issues/27812
[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: for more information, see https://github.com/rust-lang/rust/issues/27812
[INFO] [stderr]    = note: this error 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] 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: for more information, see https://github.com/rust-lang/rust/issues/27812
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 6 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0554, 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" "35066d4ee3dbc75a725d042727f4237d34b7d66bf9e455b0a5dcbca3451d1a01"`
[INFO] running `"docker" "rm" "-f" "35066d4ee3dbc75a725d042727f4237d34b7d66bf9e455b0a5dcbca3451d1a01"`
[INFO] [stdout] 35066d4ee3dbc75a725d042727f4237d34b7d66bf9e455b0a5dcbca3451d1a01