[INFO] crate mtbl 0.2.1 is already in cache
[INFO] testing mtbl-0.2.1 against 1.38.0 for beta-1.39-1
[INFO] extracting crate mtbl 0.2.1 into work/builds/worker-9/source
[INFO] validating manifest of crates.io crate mtbl 0.2.1 on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate mtbl 0.2.1
[INFO] finished tweaking crates.io crate mtbl 0.2.1
[INFO] tweaked toml for crates.io crate mtbl 0.2.1 written to work/builds/worker-9/source/Cargo.toml
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-9/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/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=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" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] 5e127568282170c88dd96c0da43f084cf93e17fdacb923121ff7ba86d67b7cc1
[INFO] running `"docker" "start" "-a" "5e127568282170c88dd96c0da43f084cf93e17fdacb923121ff7ba86d67b7cc1"`
[INFO] [stderr]    Compiling mtbl-sys v0.2.0
[INFO] [stderr]    Compiling mtbl v0.2.1 (/opt/rustwide/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 1.03s
[INFO] running `"docker" "inspect" "5e127568282170c88dd96c0da43f084cf93e17fdacb923121ff7ba86d67b7cc1"`
[INFO] running `"docker" "rm" "-f" "5e127568282170c88dd96c0da43f084cf93e17fdacb923121ff7ba86d67b7cc1"`
[INFO] [stdout] 5e127568282170c88dd96c0da43f084cf93e17fdacb923121ff7ba86d67b7cc1
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-9/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/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=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" "+1.38.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 840c25ae103341e9419e90589294d1958692fd69d6ea0d7c1525dd40d0ff45cb
[INFO] running `"docker" "start" "-a" "840c25ae103341e9419e90589294d1958692fd69d6ea0d7c1525dd40d0ff45cb"`
[INFO] [stderr]    Compiling lz4-sys v1.8.3
[INFO] [stderr]    Compiling lz4 v1.23.1
[INFO] [stderr]    Compiling mtbl v0.2.1 (/opt/rustwide/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/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/rustwide/target/debug/deps/mtbl-b8a3d5eda5c171fb.mtbl.dwhyymdb-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/mtbl-b8a3d5eda5c171fb.mtbl.dwhyymdb-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/mtbl-b8a3d5eda5c171fb.mtbl.dwhyymdb-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/mtbl-b8a3d5eda5c171fb.mtbl.dwhyymdb-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/mtbl-b8a3d5eda5c171fb.mtbl.dwhyymdb-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/mtbl-b8a3d5eda5c171fb.mtbl.dwhyymdb-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/mtbl-b8a3d5eda5c171fb.mtbl.dwhyymdb-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/mtbl-b8a3d5eda5c171fb.mtbl.dwhyymdb-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/mtbl-b8a3d5eda5c171fb.mtbl.dwhyymdb-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/mtbl-b8a3d5eda5c171fb.mtbl.dwhyymdb-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/mtbl-b8a3d5eda5c171fb.mtbl.dwhyymdb-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/mtbl-b8a3d5eda5c171fb.mtbl.dwhyymdb-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/mtbl-b8a3d5eda5c171fb.mtbl.dwhyymdb-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/mtbl-b8a3d5eda5c171fb.mtbl.dwhyymdb-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/mtbl-b8a3d5eda5c171fb.mtbl.dwhyymdb-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/mtbl-b8a3d5eda5c171fb.mtbl.dwhyymdb-cgu.9.rcgu.o" "-o" "/opt/rustwide/target/debug/deps/mtbl-b8a3d5eda5c171fb" "/opt/rustwide/target/debug/deps/mtbl-b8a3d5eda5c171fb.2uy5vxqqojwv665e.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/target/debug/build/lz4-sys-503c8abce4134f85/out" "-L" "/opt/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libtest-8b6fbd25e1766083.rlib" "/opt/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libterm-bd8f21e3bdd6cbdc.rlib" "/opt/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgetopts-bfcad117c6a632af.rlib" "/opt/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunicode_width-79a1f91e8ce4eb83.rlib" "/opt/rustwide/target/debug/deps/libtempfile-3a5ae98e804deb79.rlib" "/opt/rustwide/target/debug/deps/librand-df37cf038f4c3201.rlib" "/opt/rustwide/target/debug/deps/librand-250eafcf18e8ca2a.rlib" "/opt/rustwide/target/debug/deps/libmtbl_sys-1a356d054502dca9.rlib" "/opt/rustwide/target/debug/deps/liblibc-a3b13f6b27abcc70.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-12ce12f1efc08aa3.rlib" "/opt/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-5d3cd1b3ddab72e4.rlib" "/opt/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace-f8222943dfd167e2.rlib" "/opt/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace_sys-0cd00b2d3108cd48.rlib" "/opt/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-485c05ba6ce1b438.rlib" "/opt/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-63e6b1072426ba59.rlib" "/opt/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-a421aff1d43911ee.rlib" "/opt/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-3deef8ef4fe80dff.rlib" "/opt/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-f65a176f0586269e.rlib" "/opt/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-ad46d4080f4d7e57.rlib" "/opt/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-da6c590582bf0885.rlib" "/opt/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-837ca740df32db0a.rlib" "/opt/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-db27c965e824589f.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-68a4f8466685ed76.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" "840c25ae103341e9419e90589294d1958692fd69d6ea0d7c1525dd40d0ff45cb"`
[INFO] running `"docker" "rm" "-f" "840c25ae103341e9419e90589294d1958692fd69d6ea0d7c1525dd40d0ff45cb"`
[INFO] [stdout] 840c25ae103341e9419e90589294d1958692fd69d6ea0d7c1525dd40d0ff45cb