[INFO] fetching crate mtbl 0.2.1...
[INFO] testing mtbl-0.2.1 against 1.45.2 for beta-1.46-1
[INFO] extracting crate mtbl 0.2.1 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate mtbl 0.2.1 on toolchain 1.45.2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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 /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a8052170b8fdfe5f9e93d286aabe71176c3a24d1a88f9eec8721e7acd9e606cc
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "a8052170b8fdfe5f9e93d286aabe71176c3a24d1a88f9eec8721e7acd9e606cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a8052170b8fdfe5f9e93d286aabe71176c3a24d1a88f9eec8721e7acd9e606cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a8052170b8fdfe5f9e93d286aabe71176c3a24d1a88f9eec8721e7acd9e606cc", kill_on_drop: false }`
[INFO] [stdout] a8052170b8fdfe5f9e93d286aabe71176c3a24d1a88f9eec8721e7acd9e606cc
[INFO] running `Command { std: "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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d903c0b4f488ae4e51fe61bbce19cbddf6beb72169cc89172aa4995db7bad18e
[INFO] running `Command { std: "docker" "start" "-a" "d903c0b4f488ae4e51fe61bbce19cbddf6beb72169cc89172aa4995db7bad18e", kill_on_drop: false }`
[INFO] [stderr]    Compiling mtbl-sys v0.2.0
[INFO] [stderr]    Compiling mtbl v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/sorter.rs:171:13
[INFO] [stdout]     |
[INFO] [stdout] 171 |             try!(self.add(k.as_ref(), v.as_ref()));
[INFO] [stdout]     |             ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/writer.rs:150:13
[INFO] [stdout]     |
[INFO] [stdout] 150 |             try!(self.add(k.as_ref(), v.as_ref()));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/merger.rs:15:20
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub type MergeFn = Fn(&[u8], &[u8], &[u8]) -> Vec<u8>;
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&[u8], &[u8], &[u8]) -> Vec<u8>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/merger.rs:24:23
[INFO] [stdout]    |
[INFO] [stdout] 24 |     _sources: Vec<Box<Read>>,
[INFO] [stdout]    |                       ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/reader.rs:95:31
[INFO] [stdout]    |
[INFO] [stdout] 95 | impl<'a> IntoIterator for &'a Read {
[INFO] [stdout]    |                               ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/writer.rs:120:16
[INFO] [stdout]     |
[INFO] [stdout] 120 |     _file: Box<AsRawFd>,
[INFO] [stdout]     |                ^^^^^^^ help: use `dyn`: `dyn AsRawFd`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.65s
[INFO] running `Command { std: "docker" "inspect" "d903c0b4f488ae4e51fe61bbce19cbddf6beb72169cc89172aa4995db7bad18e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d903c0b4f488ae4e51fe61bbce19cbddf6beb72169cc89172aa4995db7bad18e", kill_on_drop: false }`
[INFO] [stdout] d903c0b4f488ae4e51fe61bbce19cbddf6beb72169cc89172aa4995db7bad18e
[INFO] running `Command { std: "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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 71e39f4424256a7d95a63cbbe7ad3cf3b266d195193d904bce46d0a9b2bedb4a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "71e39f4424256a7d95a63cbbe7ad3cf3b266d195193d904bce46d0a9b2bedb4a", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.58
[INFO] [stderr]    Compiling lz4-sys v1.9.2
[INFO] [stderr]    Compiling lz4 v1.23.2
[INFO] [stderr]    Compiling mtbl v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/sorter.rs:171:13
[INFO] [stdout]     |
[INFO] [stdout] 171 |             try!(self.add(k.as_ref(), v.as_ref()));
[INFO] [stdout]     |             ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/writer.rs:150:13
[INFO] [stdout]     |
[INFO] [stdout] 150 |             try!(self.add(k.as_ref(), v.as_ref()));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/merger.rs:15:20
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub type MergeFn = Fn(&[u8], &[u8], &[u8]) -> Vec<u8>;
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&[u8], &[u8], &[u8]) -> Vec<u8>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/merger.rs:24:23
[INFO] [stdout]    |
[INFO] [stdout] 24 |     _sources: Vec<Box<Read>>,
[INFO] [stdout]    |                       ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/reader.rs:95:31
[INFO] [stdout]    |
[INFO] [stdout] 95 | impl<'a> IntoIterator for &'a Read {
[INFO] [stdout]    |                               ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/reader.rs:411:35
[INFO] [stdout]     |
[INFO] [stdout] 411 |         for (k, v) in &reader as &Read {
[INFO] [stdout]     |                                   ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/writer.rs:120:16
[INFO] [stdout]     |
[INFO] [stdout] 120 |     _file: Box<AsRawFd>,
[INFO] [stdout]     |                ^^^^^^^ help: use `dyn`: `dyn AsRawFd`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: linking with `cc` failed: exit code: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note: "cc" "-Wl,--as-needed" "-Wl,-z,noexecstack" "-m64" "-L" "/opt/rustwide/rustup-home/toolchains/1.45.2-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/rustwide/target/debug/deps/mtbl-74247639d1542ac7.mtbl.4oe63ton-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/mtbl-74247639d1542ac7.mtbl.4oe63ton-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/mtbl-74247639d1542ac7.mtbl.4oe63ton-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/mtbl-74247639d1542ac7.mtbl.4oe63ton-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/mtbl-74247639d1542ac7.mtbl.4oe63ton-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/mtbl-74247639d1542ac7.mtbl.4oe63ton-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/mtbl-74247639d1542ac7.mtbl.4oe63ton-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/mtbl-74247639d1542ac7.mtbl.4oe63ton-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/mtbl-74247639d1542ac7.mtbl.4oe63ton-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/mtbl-74247639d1542ac7.mtbl.4oe63ton-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/mtbl-74247639d1542ac7.mtbl.4oe63ton-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/mtbl-74247639d1542ac7.mtbl.4oe63ton-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/mtbl-74247639d1542ac7.mtbl.4oe63ton-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/mtbl-74247639d1542ac7.mtbl.4oe63ton-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/mtbl-74247639d1542ac7.mtbl.4oe63ton-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/mtbl-74247639d1542ac7.mtbl.4oe63ton-cgu.9.rcgu.o" "-o" "/opt/rustwide/target/debug/deps/mtbl-74247639d1542ac7" "/opt/rustwide/target/debug/deps/mtbl-74247639d1542ac7.5ejkb24qoumytzi3.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-0fef6fee54e7c22a/out" "-L" "/opt/rustwide/rustup-home/toolchains/1.45.2-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/rustup-home/toolchains/1.45.2-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libtest-3ad1ab5f7ba3783f.rlib" "/opt/rustwide/rustup-home/toolchains/1.45.2-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libterm-be4838eb8e86accd.rlib" "/opt/rustwide/rustup-home/toolchains/1.45.2-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgetopts-d7f97d30aca9ddf1.rlib" "/opt/rustwide/rustup-home/toolchains/1.45.2-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunicode_width-2e806a0559ee0b3f.rlib" "/opt/rustwide/rustup-home/toolchains/1.45.2-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_std-9137a404219e7a82.rlib" "/opt/rustwide/target/debug/deps/libtempfile-f2dd29942d9c0b51.rlib" "/opt/rustwide/target/debug/deps/librand-d4e2111805436139.rlib" "/opt/rustwide/target/debug/deps/librand-51f5f7bf0186ec60.rlib" "/opt/rustwide/target/debug/deps/libmtbl_sys-9699224a3c604676.rlib" "/opt/rustwide/target/debug/deps/liblibc-809b3ff95751964d.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/1.45.2-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-8bb11f807a7b6b4c.rlib" "/opt/rustwide/rustup-home/toolchains/1.45.2-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-ca8087507780d964.rlib" "/opt/rustwide/rustup-home/toolchains/1.45.2-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-259c92b387c1c166.rlib" "/opt/rustwide/rustup-home/toolchains/1.45.2-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-16e0a2fbbb8e14b3.rlib" "/opt/rustwide/rustup-home/toolchains/1.45.2-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace-8a1651b8e23d2aaf.rlib" "/opt/rustwide/rustup-home/toolchains/1.45.2-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace_sys-23bdd98b0574083e.rlib" "/opt/rustwide/rustup-home/toolchains/1.45.2-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-855a92055ec33e2e.rlib" "/opt/rustwide/rustup-home/toolchains/1.45.2-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-24c70dd44fbacdfb.rlib" "/opt/rustwide/rustup-home/toolchains/1.45.2-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-b326273841bae587.rlib" "/opt/rustwide/rustup-home/toolchains/1.45.2-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-ac3c1f0e16507051.rlib" "/opt/rustwide/rustup-home/toolchains/1.45.2-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-a5729542b65954aa.rlib" "/opt/rustwide/rustup-home/toolchains/1.45.2-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-09bd1119ab1cad7d.rlib" "/opt/rustwide/rustup-home/toolchains/1.45.2-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-9a787681bfbeaf61.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/1.45.2-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-5a0398ee67f74664.rlib" "-Wl,-Bdynamic" "-lmtbl" "-lutil" "-ldl" "-lutil" "-ldl" "-lrt" "-lpthread" "-lgcc_s" "-lc" "-lm" "-lrt" "-lpthread" "-lutil" "-ldl" "-lutil"
[INFO] [stdout]   = note: /usr/bin/ld: cannot find -lmtbl
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mtbl`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "71e39f4424256a7d95a63cbbe7ad3cf3b266d195193d904bce46d0a9b2bedb4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71e39f4424256a7d95a63cbbe7ad3cf3b266d195193d904bce46d0a9b2bedb4a", kill_on_drop: false }`
[INFO] [stdout] 71e39f4424256a7d95a63cbbe7ad3cf3b266d195193d904bce46d0a9b2bedb4a