[INFO] cloning repository https://github.com/milesrout/ch
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/milesrout/ch" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmilesrout%2Fch", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmilesrout%2Fch'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 69e2a86e86defa4845b5dc51954afca341bd66c2
[INFO] testing milesrout/ch against 1.47.0 for beta-1.48-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmilesrout%2Fch" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/milesrout/ch on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/milesrout/ch
[INFO] finished tweaking git repo https://github.com/milesrout/ch
[INFO] tweaked toml for git repo https://github.com/milesrout/ch written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/milesrout/ch already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 13bc4b9983c7e75014432268e95182108e6b73d99d53941c0e5d4752d8417f14
[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" "13bc4b9983c7e75014432268e95182108e6b73d99d53941c0e5d4752d8417f14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "13bc4b9983c7e75014432268e95182108e6b73d99d53941c0e5d4752d8417f14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "13bc4b9983c7e75014432268e95182108e6b73d99d53941c0e5d4752d8417f14", kill_on_drop: false }`
[INFO] [stdout] 13bc4b9983c7e75014432268e95182108e6b73d99d53941c0e5d4752d8417f14
[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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "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] 95069757261e880c5895cf5b79d649808f3d28de80761336b818bfd0dd4afd69
[INFO] running `Command { std: "docker" "start" "-a" "95069757261e880c5895cf5b79d649808f3d28de80761336b818bfd0dd4afd69", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.17
[INFO] [stderr]    Compiling gcc v0.3.38
[INFO] [stderr]    Compiling backtrace v0.3.0
[INFO] [stderr]    Compiling regex-syntax v0.3.9
[INFO] [stderr]    Compiling rustc-demangle v0.1.3
[INFO] [stderr]    Compiling either v1.0.1
[INFO] [stderr]    Compiling cfg-if v0.1.0
[INFO] [stderr]    Compiling dbghelp-sys v0.2.0
[INFO] [stderr]    Compiling itertools v0.5.5
[INFO] [stderr]    Compiling thread-id v2.0.0
[INFO] [stderr]    Compiling memchr v0.1.11
[INFO] [stderr]    Compiling thread_local v0.2.7
[INFO] [stderr]    Compiling aho-corasick v0.5.3
[INFO] [stderr]    Compiling backtrace-sys v0.1.5
[INFO] [stderr]    Compiling regex v0.1.80
[INFO] [stderr]    Compiling ch v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lexer.rs:325:48
[INFO] [stdout]     |
[INFO] [stdout] 325 |             &Error::Regex(ref err) => (err as &error::Error).description(),
[INFO] [stdout]     |                                                ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/lexer.rs:325:62
[INFO] [stdout]     |
[INFO] [stdout] 325 |             &Error::Regex(ref err) => (err as &error::Error).description(),
[INFO] [stdout]     |                                                              ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_expr`
[INFO] [stdout]    --> src/parser.rs:121:12
[INFO] [stdout]     |
[INFO] [stdout] 121 |     pub fn parse_expr(&mut self) -> Result<Expr> {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[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" "-Wl,--eh-frame-hdr" "-L" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/rustwide/target/debug/deps/ch-5862e50a6eb560cb.ch.b8dv2l7z-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/ch-5862e50a6eb560cb.ch.b8dv2l7z-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/ch-5862e50a6eb560cb.ch.b8dv2l7z-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/ch-5862e50a6eb560cb.ch.b8dv2l7z-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/ch-5862e50a6eb560cb.ch.b8dv2l7z-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/ch-5862e50a6eb560cb.ch.b8dv2l7z-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/ch-5862e50a6eb560cb.ch.b8dv2l7z-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/ch-5862e50a6eb560cb.ch.b8dv2l7z-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/ch-5862e50a6eb560cb.ch.b8dv2l7z-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/ch-5862e50a6eb560cb.ch.b8dv2l7z-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/ch-5862e50a6eb560cb.ch.b8dv2l7z-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/ch-5862e50a6eb560cb.ch.b8dv2l7z-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/ch-5862e50a6eb560cb.ch.b8dv2l7z-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/ch-5862e50a6eb560cb.ch.b8dv2l7z-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/ch-5862e50a6eb560cb.ch.b8dv2l7z-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/ch-5862e50a6eb560cb.ch.b8dv2l7z-cgu.9.rcgu.o" "-o" "/opt/rustwide/target/debug/deps/ch-5862e50a6eb560cb" "/opt/rustwide/target/debug/deps/ch-5862e50a6eb560cb.1wujln11p7ikpc3o.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/libregex-18be4dd6c9a96821.rlib" "/opt/rustwide/target/debug/deps/libutf8_ranges-dd8541f65d3c4d9c.rlib" "/opt/rustwide/target/debug/deps/libregex_syntax-e35d65fced74597a.rlib" "/opt/rustwide/target/debug/deps/libthread_local-ec664d75d451f328.rlib" "/opt/rustwide/target/debug/deps/libthread_id-885250f70f1a1583.rlib" "/opt/rustwide/target/debug/deps/libaho_corasick-3ec51cbafdd81738.rlib" "/opt/rustwide/target/debug/deps/libmemchr-d16a2b3d2494b2a7.rlib" "/opt/rustwide/target/debug/deps/libitertools-20a86adcd92b3627.rlib" "/opt/rustwide/target/debug/deps/libeither-d7fb4c90ab971717.rlib" "/opt/rustwide/target/debug/deps/libbacktrace-92c5b65b20b65335.rlib" "/opt/rustwide/target/debug/deps/libbacktrace_sys-cea05d1d8585e765.rlib" "/opt/rustwide/target/debug/deps/librustc_demangle-1f54c49f5be732f2.rlib" "/opt/rustwide/target/debug/deps/libcfg_if-d6fcb4c35c06a007.rlib" "/opt/rustwide/target/debug/deps/libdbghelp-720313caad178130.rlib" "/opt/rustwide/target/debug/deps/libwinapi-2b3c8de3012066b8.rlib" "/opt/rustwide/target/debug/deps/libkernel32-7b1b1e9c00963030.rlib" "/opt/rustwide/target/debug/deps/liblibc-d2596c72592a93ea.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-f14aca24435a5414.rlib" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-48d342a8b48d1d01.rlib" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libminiz_oxide-14bc0820888c8eb3.rlib" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libadler-9cbd9e217bff06bc.rlib" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libobject-31826136df98934e.rlib" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libaddr2line-075976a117c8fd5d.rlib" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgimli-2d5cbedfbf17a011.rlib" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-0474372ff08c5319.rlib" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-d437c34460d2315a.rlib" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-fb61ed1b8cc4de79.rlib" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-bf76d1b643bfc9f0.rlib" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-a1b53aa7fddcf418.rlib" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-28585e57fac45c73.rlib" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-64801769bc15ab28.rlib" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-541997b56bb98660.rlib" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-cdea3c81adab3d12.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-cd9f15a39fb65cbc.rlib" "-Wl,-Bdynamic" "-lutil" "-ldl" "-lrt" "-lpthread" "-lgcc_s" "-lc" "-lm" "-lrt" "-lpthread" "-lutil" "-ldl" "-lutil"
[INFO] [stdout]   = note: /usr/bin/ld: /opt/rustwide/target/debug/deps/libbacktrace-92c5b65b20b65335.rlib(backtrace-92c5b65b20b65335.backtrace.46elg053-cgu.13.rcgu.o): in function `backtrace::symbolize::libbacktrace::init_state::{{closure}}':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.0/src/symbolize/libbacktrace.rs:156: undefined reference to `backtrace_create_state'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/libbacktrace-92c5b65b20b65335.rlib(backtrace-92c5b65b20b65335.backtrace.46elg053-cgu.13.rcgu.o): in function `backtrace::symbolize::libbacktrace::resolve':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.0/src/symbolize/libbacktrace.rs:173: undefined reference to `backtrace_pcinfo'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.0/src/symbolize/libbacktrace.rs:177: undefined reference to `backtrace_syminfo'
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ch`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "95069757261e880c5895cf5b79d649808f3d28de80761336b818bfd0dd4afd69", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "95069757261e880c5895cf5b79d649808f3d28de80761336b818bfd0dd4afd69", kill_on_drop: false }`
[INFO] [stdout] 95069757261e880c5895cf5b79d649808f3d28de80761336b818bfd0dd4afd69
