[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 beta-2021-08-01 for beta-1.55-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faisamanra%2Fxargo" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/aisamanra/xargo on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", 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-12/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" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde v0.8.21
[INFO] [stderr]   Downloaded smallvec v0.1.8
[INFO] [stderr]   Downloaded num-traits v0.1.36
[INFO] [stderr]   Downloaded owning_ref v0.2.2
[INFO] [stderr]   Downloaded backtrace v0.3.0
[INFO] [stderr]   Downloaded rustc-serialize v0.3.22
[INFO] [stderr]   Downloaded tempdir v0.3.5
[INFO] [stderr]   Downloaded fs2 v0.4.1
[INFO] [stderr]   Downloaded rustc-demangle v0.1.3
[INFO] [stderr]   Downloaded error-chain v0.7.2
[INFO] [stderr]   Downloaded serde_json v0.8.4
[INFO] [stderr]   Downloaded gcc v0.3.41
[INFO] [stderr]   Downloaded dtoa v0.2.2
[INFO] [stderr]   Downloaded walkdir v1.0.3
[INFO] [stderr]   Downloaded backtrace-sys v0.1.5
[INFO] [stderr]   Downloaded parking_lot v0.3.6
[INFO] [stderr]   Downloaded parking_lot_core v0.2.0
[INFO] [stderr]   Downloaded itoa v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b3a0aadf4fc1a61d4e7c410ad86dcbab2a3644de339e97efc8138a595dd98fec
[INFO] running `Command { std: "docker" "start" "-a" "b3a0aadf4fc1a61d4e7c410ad86dcbab2a3644de339e97efc8138a595dd98fec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b3a0aadf4fc1a61d4e7c410ad86dcbab2a3644de339e97efc8138a595dd98fec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b3a0aadf4fc1a61d4e7c410ad86dcbab2a3644de339e97efc8138a595dd98fec", kill_on_drop: false }`
[INFO] [stdout] b3a0aadf4fc1a61d4e7c410ad86dcbab2a3644de339e97efc8138a595dd98fec
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6bffa7dc44cf8962be9d48f3df5aeece08b17ae5c26caa7b1378d3f7db6be0f7
[INFO] running `Command { std: "docker" "start" "-a" "6bffa7dc44cf8962be9d48f3df5aeece08b17ae5c26caa7b1378d3f7db6be0f7", kill_on_drop: false }`
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]    Compiling libc v0.2.18
[INFO] [stderr]    Compiling gcc v0.3.41
[INFO] [stderr]    Compiling winapi v0.2.8
[INFO] [stderr]    Compiling backtrace v0.3.0
[INFO] [stderr]    Compiling rustc-demangle v0.1.3
[INFO] [stderr]    Compiling itoa v0.1.1
[INFO] [stderr]    Compiling xargo v0.3.8 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling num-traits v0.1.36
[INFO] [stderr]    Compiling serde v0.8.21
[INFO] [stderr]    Compiling semver v0.1.20
[INFO] [stderr]    Compiling dtoa v0.2.2
[INFO] [stderr]    Compiling rustc-serialize v0.3.22
[INFO] [stderr]    Compiling walkdir v1.0.3
[INFO] [stderr]    Compiling dbghelp-sys v0.2.0
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]    Compiling rustc_version v0.1.7
[INFO] [stderr]    Compiling rand v0.3.15
[INFO] [stderr]    Compiling fs2 v0.4.1
[INFO] [stderr]    Compiling backtrace-sys v0.1.5
[INFO] [stderr]    Compiling tempdir v0.3.5
[INFO] [stderr]    Compiling error-chain v0.7.2
[INFO] [stderr]    Compiling toml v0.2.1
[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]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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:82:14
[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 status: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note: "cc" "-m64" "/opt/rustwide/target/debug/deps/xargo-48847d1ebf132a28.xargo.e2738d5d-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/xargo-48847d1ebf132a28.xargo.e2738d5d-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/xargo-48847d1ebf132a28.xargo.e2738d5d-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/xargo-48847d1ebf132a28.xargo.e2738d5d-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/xargo-48847d1ebf132a28.xargo.e2738d5d-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/xargo-48847d1ebf132a28.xargo.e2738d5d-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/xargo-48847d1ebf132a28.xargo.e2738d5d-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/xargo-48847d1ebf132a28.xargo.e2738d5d-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/xargo-48847d1ebf132a28.xargo.e2738d5d-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/xargo-48847d1ebf132a28.xargo.e2738d5d-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/xargo-48847d1ebf132a28.xargo.e2738d5d-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/xargo-48847d1ebf132a28.xargo.e2738d5d-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/xargo-48847d1ebf132a28.xargo.e2738d5d-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/xargo-48847d1ebf132a28.xargo.e2738d5d-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/xargo-48847d1ebf132a28.xargo.e2738d5d-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/xargo-48847d1ebf132a28.xargo.e2738d5d-cgu.9.rcgu.o" "/opt/rustwide/target/debug/deps/xargo-48847d1ebf132a28.bjgryvrl9i3atwn.rcgu.o" "-Wl,--as-needed" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/libwalkdir-710b1c98607da7e7.rlib" "/opt/rustwide/target/debug/deps/libtoml-aaacf749ef4beb23.rlib" "/opt/rustwide/target/debug/deps/librustc_serialize-22a7a0a2489e8bde.rlib" "/opt/rustwide/target/debug/deps/libtempdir-b92b65a6123ec41c.rlib" "/opt/rustwide/target/debug/deps/librand-496b1c671132b73c.rlib" "/opt/rustwide/target/debug/deps/libserde_json-339d7850fd1e9190.rlib" "/opt/rustwide/target/debug/deps/libdtoa-4c21066868a58a6c.rlib" "/opt/rustwide/target/debug/deps/libitoa-8bce939282e50e48.rlib" "/opt/rustwide/target/debug/deps/libserde-a72ee413ace0959d.rlib" "/opt/rustwide/target/debug/deps/libnum_traits-54d0f8b811f24613.rlib" "/opt/rustwide/target/debug/deps/librustc_version-9bbeb914b4683bd8.rlib" "/opt/rustwide/target/debug/deps/libsemver-2e1ca6098deefcbe.rlib" "/opt/rustwide/target/debug/deps/libfs2-385149b7a3b31219.rlib" "/opt/rustwide/target/debug/deps/liberror_chain-6302ad2ee21abd2c.rlib" "/opt/rustwide/target/debug/deps/libbacktrace-d08bafc82018545c.rlib" "/opt/rustwide/target/debug/deps/libbacktrace_sys-d2c5d655ca33811a.rlib" "/opt/rustwide/target/debug/deps/librustc_demangle-3b2872ec00202141.rlib" "/opt/rustwide/target/debug/deps/libcfg_if-cb4975d79218c50c.rlib" "/opt/rustwide/target/debug/deps/libdbghelp-c40943c0997989bc.rlib" "/opt/rustwide/target/debug/deps/libwinapi-07f1a1e4ac0d8c89.rlib" "/opt/rustwide/target/debug/deps/libkernel32-d777c3697a107ee0.rlib" "/opt/rustwide/target/debug/deps/liblibc-82f1a6fdfca786e7.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-197d933f09d9a590.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-46a006cddfd334f0.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libminiz_oxide-5b9870310e470b38.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libadler-260022ba8f1ab4ee.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libobject-71377435a799394f.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libaddr2line-658ee5924fde57cd.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgimli-9e8627da6bd1b94a.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd_detect-19fdaac49f59be84.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-cb00e2691ea45905.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-50f6726defae5ae1.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-2afc16311deea26e.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-bb5cb0fe086ee8cf.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-896053247b5dfd0b.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-735e1f2ac3cf23be.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-9dfb6622644c732c.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-beea7d9617fe25c5.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-8ef7dd43fc671f88.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-a9a3b2ad67977f47.rlib" "-Wl,-Bdynamic" "-lutil" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc" "-Wl,--eh-frame-hdr" "-Wl,-znoexecstack" "-L" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/debug/deps/xargo-48847d1ebf132a28" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs"
[INFO] [stdout]   = note: /usr/bin/ld: /opt/rustwide/target/debug/deps/libbacktrace-d08bafc82018545c.rlib(backtrace-d08bafc82018545c.backtrace.ece877ad-cgu.11.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-d08bafc82018545c.rlib(backtrace-d08bafc82018545c.backtrace.ece877ad-cgu.11.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]   = help: some `extern` functions couldn't be found; some native libraries may need to be installed or have their path specified
[INFO] [stdout]   = note: use the `-l` flag to specify native libraries to link
[INFO] [stdout]   = note: use the `cargo:rustc-link-lib` directive to specify the native libraries to link with Cargo (see https://doc.rust-lang.org/cargo/reference/build-scripts.html#cargorustc-link-libkindname)
[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` due to 2 previous errors; 4 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "6bffa7dc44cf8962be9d48f3df5aeece08b17ae5c26caa7b1378d3f7db6be0f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6bffa7dc44cf8962be9d48f3df5aeece08b17ae5c26caa7b1378d3f7db6be0f7", kill_on_drop: false }`
[INFO] [stdout] 6bffa7dc44cf8962be9d48f3df5aeece08b17ae5c26caa7b1378d3f7db6be0f7
