[INFO] crate mtbl 0.2.1 is already in cache
[INFO] extracting crate mtbl 0.2.1 into work/ex/beta-1.38-1/sources/1.37.0/reg/mtbl/0.2.1
[INFO] extracting crate mtbl 0.2.1 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/mtbl/0.2.1
[INFO] validating manifest of mtbl-0.2.1 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 mtbl-0.2.1 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 mtbl-0.2.1
[INFO] finished frobbing mtbl-0.2.1
[INFO] frobbed toml for mtbl-0.2.1 written to work/ex/beta-1.38-1/sources/1.37.0/reg/mtbl/0.2.1/Cargo.toml
[INFO] started frobbing mtbl-0.2.1
[INFO] finished frobbing mtbl-0.2.1
[INFO] frobbed toml for mtbl-0.2.1 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/mtbl/0.2.1/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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] 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 mtbl-0.2.1 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-0/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/mtbl/0.2.1:/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] 0f07fc63078f1e3ba28d95f953cb1ae6f6234303dd75ba22954aefc7f6dc6e94
[INFO] running `"docker" "start" "-a" "0f07fc63078f1e3ba28d95f953cb1ae6f6234303dd75ba22954aefc7f6dc6e94"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling mtbl-sys v0.2.0
[INFO] [stderr]    Compiling mtbl v0.2.1 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/merger.rs:15:20
[INFO] [stderr]    |
[INFO] [stderr] 15 | pub type MergeFn = Fn(&[u8], &[u8], &[u8]) -> Vec<u8>;
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&[u8], &[u8], &[u8]) -> Vec<u8>`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/merger.rs:24:23
[INFO] [stderr]    |
[INFO] [stderr] 24 |     _sources: Vec<Box<Read>>,
[INFO] [stderr]    |                       ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/reader.rs:95:31
[INFO] [stderr]    |
[INFO] [stderr] 95 | impl<'a> IntoIterator for &'a Read {
[INFO] [stderr]    |                               ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/writer.rs:120:16
[INFO] [stderr]     |
[INFO] [stderr] 120 |     _file: Box<AsRawFd>,
[INFO] [stderr]     |                ^^^^^^^ help: use `dyn`: `dyn AsRawFd`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.66s
[INFO] running `"docker" "inspect" "0f07fc63078f1e3ba28d95f953cb1ae6f6234303dd75ba22954aefc7f6dc6e94"`
[INFO] running `"docker" "rm" "-f" "0f07fc63078f1e3ba28d95f953cb1ae6f6234303dd75ba22954aefc7f6dc6e94"`
[INFO] [stdout] 0f07fc63078f1e3ba28d95f953cb1ae6f6234303dd75ba22954aefc7f6dc6e94
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/mtbl/0.2.1:/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" "test" "--frozen" "--no-run"`
[INFO] [stdout] 3c8c8e4bb27049e7ec082d043691ed06211d7d1e765f65e3ed59cc1c376d31ce
[INFO] running `"docker" "start" "-a" "3c8c8e4bb27049e7ec082d043691ed06211d7d1e765f65e3ed59cc1c376d31ce"`
[INFO] [stderr]    Compiling lz4-sys v1.8.3
[INFO] [stderr]    Compiling lz4 v1.23.1
[INFO] [stderr]    Compiling mtbl v0.2.1 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/merger.rs:15:20
[INFO] [stderr]    |
[INFO] [stderr] 15 | pub type MergeFn = Fn(&[u8], &[u8], &[u8]) -> Vec<u8>;
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&[u8], &[u8], &[u8]) -> Vec<u8>`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/merger.rs:24:23
[INFO] [stderr]    |
[INFO] [stderr] 24 |     _sources: Vec<Box<Read>>,
[INFO] [stderr]    |                       ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/reader.rs:95:31
[INFO] [stderr]    |
[INFO] [stderr] 95 | impl<'a> IntoIterator for &'a Read {
[INFO] [stderr]    |                               ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/reader.rs:411:35
[INFO] [stderr]     |
[INFO] [stderr] 411 |         for (k, v) in &reader as &Read {
[INFO] [stderr]     |                                   ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/writer.rs:120:16
[INFO] [stderr]     |
[INFO] [stderr] 120 |     _file: Box<AsRawFd>,
[INFO] [stderr]     |                ^^^^^^^ help: use `dyn`: `dyn AsRawFd`
[INFO] [stderr] 
[INFO] [stderr] error: linking with `cc` failed: exit code: 1
[INFO] [stderr]   |
[INFO] [stderr]   = note: "cc" "-Wl,--as-needed" "-Wl,-z,noexecstack" "-m64" "-L" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/crater/target/debug/deps/mtbl-d8bcc4844dee848d.mtbl.9i4yo5zx-cgu.0.rcgu.o" "/opt/crater/target/debug/deps/mtbl-d8bcc4844dee848d.mtbl.9i4yo5zx-cgu.1.rcgu.o" "/opt/crater/target/debug/deps/mtbl-d8bcc4844dee848d.mtbl.9i4yo5zx-cgu.10.rcgu.o" "/opt/crater/target/debug/deps/mtbl-d8bcc4844dee848d.mtbl.9i4yo5zx-cgu.11.rcgu.o" "/opt/crater/target/debug/deps/mtbl-d8bcc4844dee848d.mtbl.9i4yo5zx-cgu.12.rcgu.o" "/opt/crater/target/debug/deps/mtbl-d8bcc4844dee848d.mtbl.9i4yo5zx-cgu.13.rcgu.o" "/opt/crater/target/debug/deps/mtbl-d8bcc4844dee848d.mtbl.9i4yo5zx-cgu.14.rcgu.o" "/opt/crater/target/debug/deps/mtbl-d8bcc4844dee848d.mtbl.9i4yo5zx-cgu.15.rcgu.o" "/opt/crater/target/debug/deps/mtbl-d8bcc4844dee848d.mtbl.9i4yo5zx-cgu.2.rcgu.o" "/opt/crater/target/debug/deps/mtbl-d8bcc4844dee848d.mtbl.9i4yo5zx-cgu.3.rcgu.o" "/opt/crater/target/debug/deps/mtbl-d8bcc4844dee848d.mtbl.9i4yo5zx-cgu.4.rcgu.o" "/opt/crater/target/debug/deps/mtbl-d8bcc4844dee848d.mtbl.9i4yo5zx-cgu.5.rcgu.o" "/opt/crater/target/debug/deps/mtbl-d8bcc4844dee848d.mtbl.9i4yo5zx-cgu.6.rcgu.o" "/opt/crater/target/debug/deps/mtbl-d8bcc4844dee848d.mtbl.9i4yo5zx-cgu.7.rcgu.o" "/opt/crater/target/debug/deps/mtbl-d8bcc4844dee848d.mtbl.9i4yo5zx-cgu.8.rcgu.o" "/opt/crater/target/debug/deps/mtbl-d8bcc4844dee848d.mtbl.9i4yo5zx-cgu.9.rcgu.o" "-o" "/opt/crater/target/debug/deps/mtbl-d8bcc4844dee848d" "/opt/crater/target/debug/deps/mtbl-d8bcc4844dee848d.1k6db4jjo67odmao.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/crater/target/debug/deps" "-L" "/opt/crater/target/debug/build/lz4-sys-dfdb691db61f9178/out" "-L" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libtest-f0d86b2ef6410e4f.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libterm-28a84d78fba0104f.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgetopts-625008d0a6744ece.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunicode_width-b85c11af396739da.rlib" "/opt/crater/target/debug/deps/libtempfile-06fec63a0af00e8e.rlib" "/opt/crater/target/debug/deps/librand-5eda43279f0ef45c.rlib" "/opt/crater/target/debug/deps/librand-7efbcbd89944bda6.rlib" "/opt/crater/target/debug/deps/libmtbl_sys-2e6fe03300e050d3.rlib" "/opt/crater/target/debug/deps/liblibc-37f3d1c853b3b7bd.rlib" "-Wl,--start-group" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-1d6d86bd078a28e9.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-e9721e46a424e2a9.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace-c07193698f282147.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace_sys-6da45690f3863086.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-690797036dd27680.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-d3896ccbfd8eda2b.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-7cccc3739e3d7623.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-5e9ba178a513cd29.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-5ca9f83bf63d1f4b.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-bba1c7ef9e950882.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-e23c9de62012deb5.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-9b59dffdcd513d5d.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-17392340ab2e4a97.rlib" "-Wl,--end-group" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-ac21508a81e3f7f3.rlib" "-Wl,-Bdynamic" "-lmtbl" "-lutil" "-lutil" "-ldl" "-lrt" "-lpthread" "-lgcc_s" "-lc" "-lm" "-lrt" "-lpthread" "-lutil" "-lutil"
[INFO] [stderr]   = note: /usr/bin/ld: cannot find -lmtbl
[INFO] [stderr]           collect2: error: ld returned 1 exit status
[INFO] [stderr]           
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `mtbl`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "3c8c8e4bb27049e7ec082d043691ed06211d7d1e765f65e3ed59cc1c376d31ce"`
[INFO] running `"docker" "rm" "-f" "3c8c8e4bb27049e7ec082d043691ed06211d7d1e765f65e3ed59cc1c376d31ce"`
[INFO] [stdout] 3c8c8e4bb27049e7ec082d043691ed06211d7d1e765f65e3ed59cc1c376d31ce