[INFO] cloning repository https://github.com/frde-me/UntitledLang
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/frde-me/UntitledLang" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffrde-me%2FUntitledLang", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffrde-me%2FUntitledLang'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2236debf09b53b7df7644342a74ce754dde909c7
[INFO] checking frde-me/UntitledLang against try#8d0c454bea9d9cc2cc7e288388f3b7d1da19c04f for pr-114559
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffrde-me%2FUntitledLang" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/frde-me/UntitledLang on toolchain 8d0c454bea9d9cc2cc7e288388f3b7d1da19c04f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8d0c454bea9d9cc2cc7e288388f3b7d1da19c04f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/frde-me/UntitledLang
[INFO] finished tweaking git repo https://github.com/frde-me/UntitledLang
[INFO] tweaked toml for git repo https://github.com/frde-me/UntitledLang written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/frde-me/UntitledLang already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8d0c454bea9d9cc2cc7e288388f3b7d1da19c04f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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@sha256:5c16f4e6c37141f9fef0bc86f7a492d732943053e42aab8461035881e3f53823" "/opt/rustwide/cargo-home/bin/cargo" "+8d0c454bea9d9cc2cc7e288388f3b7d1da19c04f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 63ef0d42e37844a5306db2166fe1e67061331fe76f15114dd63431ec0f635d76
[INFO] running `Command { std: "docker" "start" "-a" "63ef0d42e37844a5306db2166fe1e67061331fe76f15114dd63431ec0f635d76", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "63ef0d42e37844a5306db2166fe1e67061331fe76f15114dd63431ec0f635d76", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63ef0d42e37844a5306db2166fe1e67061331fe76f15114dd63431ec0f635d76", kill_on_drop: false }`
[INFO] [stdout] 63ef0d42e37844a5306db2166fe1e67061331fe76f15114dd63431ec0f635d76
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:5c16f4e6c37141f9fef0bc86f7a492d732943053e42aab8461035881e3f53823" "/opt/rustwide/cargo-home/bin/cargo" "+8d0c454bea9d9cc2cc7e288388f3b7d1da19c04f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c65e1753586d622f2c13c647e71178f1ed126cefc923981adaef9059534a22ab
[INFO] running `Command { std: "docker" "start" "-a" "c65e1753586d622f2c13c647e71178f1ed126cefc923981adaef9059534a22ab", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.33
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde v1.0.114
[INFO] [stderr]    Compiling serde_json v1.0.56
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr] thread 'rustc' panicked at compiler/rustc_metadata/src/rmeta/encoder.rs:461:9:
[INFO] [stderr] assertion failed: pos.get() <= self.position()
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x7f04f4089ffc - std::backtrace_rs::backtrace::libunwind::trace::h95c05112ab9ece34
[INFO] [stderr]                                at /rustc/8d0c454bea9d9cc2cc7e288388f3b7d1da19c04f/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5
[INFO] [stderr]    1:     0x7f04f4089ffc - std::backtrace_rs::backtrace::trace_unsynchronized::h9b8c9bbe114eaecc
[INFO] [stderr]                                at /rustc/8d0c454bea9d9cc2cc7e288388f3b7d1da19c04f/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]    2:     0x7f04f4089ffc - std::sys_common::backtrace::_print_fmt::h40a8af6b0d5e0a31
[INFO] [stderr]                                at /rustc/8d0c454bea9d9cc2cc7e288388f3b7d1da19c04f/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stderr]    3:     0x7f04f4089ffc - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hf75f5ed052b9b292
[INFO] [stderr]                                at /rustc/8d0c454bea9d9cc2cc7e288388f3b7d1da19c04f/library/std/src/sys_common/backtrace.rs:44:22
[INFO] [stderr]    4:     0x7f04f40f06ec - core::fmt::rt::Argument::fmt::hffeb3e553a905a87
[INFO] [stderr]                                at /rustc/8d0c454bea9d9cc2cc7e288388f3b7d1da19c04f/library/core/src/fmt/rt.rs:138:9
[INFO] [stderr]    5:     0x7f04f40f06ec - core::fmt::write::h06156a70e814a16b
[INFO] [stderr]                                at /rustc/8d0c454bea9d9cc2cc7e288388f3b7d1da19c04f/library/core/src/fmt/mod.rs:1094:21
[INFO] [stderr]    6:     0x7f04f407c77e - std::io::Write::write_fmt::hb6fb87e7cb33fe00
[INFO] [stderr]                                at /rustc/8d0c454bea9d9cc2cc7e288388f3b7d1da19c04f/library/std/src/io/mod.rs:1714:15
[INFO] [stderr]    7:     0x7f04f4089de5 - std::sys_common::backtrace::_print::h1c6ff3535af88622
[INFO] [stderr]                                at /rustc/8d0c454bea9d9cc2cc7e288388f3b7d1da19c04f/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stderr]    8:     0x7f04f4089de5 - std::sys_common::backtrace::print::hf0fe9fcc757f1154
[INFO] [stderr]                                at /rustc/8d0c454bea9d9cc2cc7e288388f3b7d1da19c04f/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stderr]    9:     0x7f04f408cf3a - std::panicking::panic_hook_with_disk_dump::{{closure}}::h4b1c3589e7c717b6
[INFO] [stderr]                                at /rustc/8d0c454bea9d9cc2cc7e288388f3b7d1da19c04f/library/std/src/panicking.rs:278:22
[INFO] [stderr]   10:     0x7f04f408cbd3 - std::panicking::panic_hook_with_disk_dump::h2cdb9acbe8b44af6
[INFO] [stderr]                                at /rustc/8d0c454bea9d9cc2cc7e288388f3b7d1da19c04f/library/std/src/panicking.rs:312:9
[INFO] [stderr]   11:     0x7f04f7359579 - <rustc_driver_impl[888f9151d6a36396]::install_ice_hook::{closure#0} as core[e69a394748c4e160]::ops::function::FnOnce<(&core[e69a394748c4e160]::panic::panic_info::PanicInfo,)>>::call_once::{shim:vtable#0}
[INFO] [stderr]   12:     0x7f04f408d7e0 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h150fe7b03d0c7299
[INFO] [stderr]                                at /rustc/8d0c454bea9d9cc2cc7e288388f3b7d1da19c04f/library/alloc/src/boxed.rs:2021:9
[INFO] [stderr]   13:     0x7f04f408d7e0 - std::panicking::rust_panic_with_hook::hc3d9c432e268eccf
[INFO] [stderr]                                at /rustc/8d0c454bea9d9cc2cc7e288388f3b7d1da19c04f/library/std/src/panicking.rs:733:13
[INFO] [stderr]   14:     0x7f04f408d521 - std::panicking::begin_panic_handler::{{closure}}::h391325021f5856f8
[INFO] [stderr]                                at /rustc/8d0c454bea9d9cc2cc7e288388f3b7d1da19c04f/library/std/src/panicking.rs:619:13
[INFO] [stderr]   15:     0x7f04f408a536 - std::sys_common::backtrace::__rust_end_short_backtrace::hbe78316b808f4d85
[INFO] [stderr]                                at /rustc/8d0c454bea9d9cc2cc7e288388f3b7d1da19c04f/library/std/src/sys_common/backtrace.rs:170:18
[INFO] [stderr]   16:     0x7f04f408d2b2 - rust_begin_unwind
[INFO] [stderr]                                at /rustc/8d0c454bea9d9cc2cc7e288388f3b7d1da19c04f/library/std/src/panicking.rs:617:5
[INFO] [stderr]   17:     0x7f04f40ecaa3 - core::panicking::panic_fmt::h575955c6bc6c8b4e
[INFO] [stderr]                                at /rustc/8d0c454bea9d9cc2cc7e288388f3b7d1da19c04f/library/core/src/panicking.rs:67:14
[INFO] [stderr]   18:     0x7f04f40ecb33 - core::panicking::panic::h3454f4a68fce66aa
[INFO] [stderr]                                at /rustc/8d0c454bea9d9cc2cc7e288388f3b7d1da19c04f/library/core/src/panicking.rs:117:5
[INFO] [stderr] error: could not compile `syn` (lib)
[INFO] running `Command { std: "docker" "inspect" "c65e1753586d622f2c13c647e71178f1ed126cefc923981adaef9059534a22ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c65e1753586d622f2c13c647e71178f1ed126cefc923981adaef9059534a22ab", kill_on_drop: false }`
[INFO] [stdout] c65e1753586d622f2c13c647e71178f1ed126cefc923981adaef9059534a22ab
