[INFO] cloning repository https://github.com/aisamanra/xargo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/aisamanra/xargo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faisamanra%2Fxargo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faisamanra%2Fxargo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b67abf8c1ad5e129618117715a10acf8aacadf6d
[INFO] testing aisamanra/xargo against 1.47.0 for beta-1.48-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faisamanra%2Fxargo" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/aisamanra/xargo 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/aisamanra/xargo
[INFO] finished tweaking git repo https://github.com/aisamanra/xargo
[INFO] tweaked toml for git repo https://github.com/aisamanra/xargo written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/aisamanra/xargo 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-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] 2821fa4932ba904fe30ee655e9ea92c60f5cf6b5fea8a62fce676919bec97294
[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" "2821fa4932ba904fe30ee655e9ea92c60f5cf6b5fea8a62fce676919bec97294", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2821fa4932ba904fe30ee655e9ea92c60f5cf6b5fea8a62fce676919bec97294", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2821fa4932ba904fe30ee655e9ea92c60f5cf6b5fea8a62fce676919bec97294", kill_on_drop: false }`
[INFO] [stdout] 2821fa4932ba904fe30ee655e9ea92c60f5cf6b5fea8a62fce676919bec97294
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] [stdout] 0cba054fd2d9b706b1913f352fba1d95cf420bed9af94ec7e2938b73a3fff931
[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" "0cba054fd2d9b706b1913f352fba1d95cf420bed9af94ec7e2938b73a3fff931", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.18
[INFO] [stderr]    Compiling backtrace v0.3.0
[INFO] [stderr]    Compiling serde v0.8.21
[INFO] [stderr]    Compiling xargo v0.3.8 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling walkdir v1.0.3
[INFO] [stderr]    Compiling backtrace-sys v0.1.5
[INFO] [stderr]    Compiling toml v0.2.1
[INFO] [stderr]    Compiling rand v0.3.15
[INFO] [stderr]    Compiling fs2 v0.4.1
[INFO] [stderr]    Compiling error-chain v0.7.2
[INFO] [stderr]    Compiling tempdir v0.3.5
[INFO] [stderr]    Compiling serde_json v0.8.4
[INFO] [stdout] warning: lint `unused_doc_comment` has been renamed to `unused_doc_comments`
[INFO] [stdout]  --> src/errors.rs:2:10
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![allow(unused_doc_comment)]
[INFO] [stdout]   |          ^^^^^^^^^^^^^^^^^^ help: use the new name: `unused_doc_comments`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(renamed_and_removed_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/flock.rs:149:11
[INFO] [stdout]     |
[INFO] [stdout] 149 |     try: &Fn() -> io::Result<()>,
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn() -> io::Result<()>`
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/main.rs:1:9
[INFO] [stdout]     |
[INFO] [stdout] 1   | #![deny(warnings)]
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` implied by `#[warn(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/flock.rs:150:13
[INFO] [stdout]     |
[INFO] [stdout] 150 |     block: &Fn() -> io::Result<()>,
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn() -> io::Result<()>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::env::home_dir`: This function's behavior is unexpected and probably not what you want. Consider using a crate from crates.io instead.
[INFO] [stdout]   --> src/xargo.rs:82:9
[INFO] [stdout]    |
[INFO] [stdout] 82 |         env::home_dir()
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/main.rs:1:9
[INFO] [stdout]    |
[INFO] [stdout] 1  | #![deny(warnings)]
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    = note: `#[warn(deprecated)]` implied by `#[warn(warnings)]`
[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/xargo-e3326da8a962a06c.xargo.6zkczmup-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/xargo-e3326da8a962a06c.xargo.6zkczmup-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/xargo-e3326da8a962a06c.xargo.6zkczmup-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/xargo-e3326da8a962a06c.xargo.6zkczmup-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/xargo-e3326da8a962a06c.xargo.6zkczmup-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/xargo-e3326da8a962a06c.xargo.6zkczmup-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/xargo-e3326da8a962a06c.xargo.6zkczmup-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/xargo-e3326da8a962a06c.xargo.6zkczmup-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/xargo-e3326da8a962a06c.xargo.6zkczmup-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/xargo-e3326da8a962a06c.xargo.6zkczmup-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/xargo-e3326da8a962a06c.xargo.6zkczmup-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/xargo-e3326da8a962a06c.xargo.6zkczmup-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/xargo-e3326da8a962a06c.xargo.6zkczmup-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/xargo-e3326da8a962a06c.xargo.6zkczmup-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/xargo-e3326da8a962a06c.xargo.6zkczmup-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/xargo-e3326da8a962a06c.xargo.6zkczmup-cgu.9.rcgu.o" "-o" "/opt/rustwide/target/debug/deps/xargo-e3326da8a962a06c" "/opt/rustwide/target/debug/deps/xargo-e3326da8a962a06c.30zygacvmrzclyti.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/libwalkdir-46a1fb010b55cdad.rlib" "/opt/rustwide/target/debug/deps/libtoml-be37c1754a62605b.rlib" "/opt/rustwide/target/debug/deps/librustc_serialize-082c5bea4c3eafb1.rlib" "/opt/rustwide/target/debug/deps/libtempdir-4dd6ea83e76a06dc.rlib" "/opt/rustwide/target/debug/deps/librand-cf834a08e6b84d06.rlib" "/opt/rustwide/target/debug/deps/libserde_json-699b1a10b0e55439.rlib" "/opt/rustwide/target/debug/deps/libdtoa-dac9caaee66f955a.rlib" "/opt/rustwide/target/debug/deps/libitoa-15a50a4aba9ad0b8.rlib" "/opt/rustwide/target/debug/deps/libserde-d03a48e938fdf905.rlib" "/opt/rustwide/target/debug/deps/libnum_traits-68c0603f54582ee3.rlib" "/opt/rustwide/target/debug/deps/librustc_version-5528e336ae7c5af4.rlib" "/opt/rustwide/target/debug/deps/libsemver-59e1de64c67cbd31.rlib" "/opt/rustwide/target/debug/deps/libfs2-52e1d8a1a1b53501.rlib" "/opt/rustwide/target/debug/deps/liberror_chain-de2bafc741c3203d.rlib" "/opt/rustwide/target/debug/deps/libbacktrace-035d7de719be4e71.rlib" "/opt/rustwide/target/debug/deps/libbacktrace_sys-605d059251a3fa94.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-19f84d5612491181.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-035d7de719be4e71.rlib(backtrace-035d7de719be4e71.backtrace.1aytlwc6-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-035d7de719be4e71.rlib(backtrace-035d7de719be4e71.backtrace.1aytlwc6-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; 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `xargo`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "0cba054fd2d9b706b1913f352fba1d95cf420bed9af94ec7e2938b73a3fff931", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0cba054fd2d9b706b1913f352fba1d95cf420bed9af94ec7e2938b73a3fff931", kill_on_drop: false }`
[INFO] [stdout] 0cba054fd2d9b706b1913f352fba1d95cf420bed9af94ec7e2938b73a3fff931
