[INFO] cloning repository https://github.com/Caellian/typelist
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Caellian/typelist" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCaellian%2Ftypelist", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCaellian%2Ftypelist'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8d7254c8ed77f46609cb0ac5b6d181118df194a6
[INFO] checking Caellian/typelist against master#f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b for pr-148329
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCaellian%2Ftypelist" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-2-tc1/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/Caellian/typelist
[INFO] finished tweaking git repo https://github.com/Caellian/typelist
[INFO] tweaked toml for git repo https://github.com/Caellian/typelist written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Caellian/typelist on toolchain f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Caellian/typelist 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" "+f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 456d1db03153c00bf3d8d7169b88c0e91fb69739bf1e715b79bb34ca130b088f
[INFO] running `Command { std: "docker" "start" "-a" "456d1db03153c00bf3d8d7169b88c0e91fb69739bf1e715b79bb34ca130b088f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "456d1db03153c00bf3d8d7169b88c0e91fb69739bf1e715b79bb34ca130b088f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "456d1db03153c00bf3d8d7169b88c0e91fb69739bf1e715b79bb34ca130b088f", kill_on_drop: false }`
[INFO] [stdout] 456d1db03153c00bf3d8d7169b88c0e91fb69739bf1e715b79bb34ca130b088f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9a481747c00016bb07249610d62b9bfd351919f0a859a1010bd0a9c9f613c122
[INFO] running `Command { std: "docker" "start" "-a" "9a481747c00016bb07249610d62b9bfd351919f0a859a1010bd0a9c9f613c122", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling prettyplease v0.2.22
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling syn v2.0.79
[INFO] [stderr]     Checking variadic-t-codegen v0.1.0 (/opt/rustwide/workdir/codegen)
[INFO] [stderr]     Checking variadic-t-macros v0.1.0 (/opt/rustwide/workdir/macros)
[INFO] [stdout] warning: method `mapping_signatures` is never used
[INFO] [stdout]   --> codegen/src/mapping.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | impl<'a> TupleMappingTrait<'a> {
[INFO] [stdout]    | ------------------------------ method in this implementation
[INFO] [stdout] 20 |     fn mapping_signatures(&self, receiver: Receiver) -> impl Iterator<Item = Signature> + '_ {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fnonce_bound` is never used
[INFO] [stdout]    --> codegen/src/util.rs:292:8
[INFO] [stdout]     |
[INFO] [stdout] 292 | pub fn fnonce_bound(inputs: impl IntoIterator<Item = Type>, output: Type) -> TraitBound {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fn_bound` is never used
[INFO] [stdout]    --> codegen/src/util.rs:296:8
[INFO] [stdout]     |
[INFO] [stdout] 296 | pub fn fn_bound(inputs: impl IntoIterator<Item = Type>, output: Type) -> TraitBound {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `mapping_signatures` is never used
[INFO] [stdout]   --> codegen/src/mapping.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | impl<'a> TupleMappingTrait<'a> {
[INFO] [stdout]    | ------------------------------ method in this implementation
[INFO] [stdout] 20 |     fn mapping_signatures(&self, receiver: Receiver) -> impl Iterator<Item = Signature> + '_ {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fnonce_bound` is never used
[INFO] [stdout]    --> codegen/src/util.rs:292:8
[INFO] [stdout]     |
[INFO] [stdout] 292 | pub fn fnonce_bound(inputs: impl IntoIterator<Item = Type>, output: Type) -> TraitBound {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fn_bound` is never used
[INFO] [stdout]    --> codegen/src/util.rs:296:8
[INFO] [stdout]     |
[INFO] [stdout] 296 | pub fn fn_bound(inputs: impl IntoIterator<Item = Type>, output: Type) -> TraitBound {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `mapping_signatures` is never used
[INFO] [stdout]   --> codegen/src/mapping.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | impl<'a> TupleMappingTrait<'a> {
[INFO] [stdout]    | ------------------------------ method in this implementation
[INFO] [stdout] 20 |     fn mapping_signatures(&self, receiver: Receiver) -> impl Iterator<Item = Signature> + '_ {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fnonce_bound` is never used
[INFO] [stdout]    --> codegen/src/util.rs:292:8
[INFO] [stdout]     |
[INFO] [stdout] 292 | pub fn fnonce_bound(inputs: impl IntoIterator<Item = Type>, output: Type) -> TraitBound {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fn_bound` is never used
[INFO] [stdout]    --> codegen/src/util.rs:296:8
[INFO] [stdout]     |
[INFO] [stdout] 296 | pub fn fn_bound(inputs: impl IntoIterator<Item = Type>, output: Type) -> TraitBound {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling variadic-t v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: failed to run custom build command for `variadic-t v0.1.0 (/opt/rustwide/workdir)`
[INFO] [stderr] note: To improve backtraces for build dependencies, set the CARGO_PROFILE_DEV_BUILD_OVERRIDE_DEBUG=true environment variable to enable debug information generation.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/variadic-t-ff31631c1ad06760/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr] 
[INFO] [stderr]   thread 'main' (206) panicked at /opt/rustwide/workdir/codegen/src/lib.rs:96:48:
[INFO] [stderr]   called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x5d1acacf46a2 - std::backtrace_rs::backtrace::libunwind::trace::hf8c8bace9f876b2f
[INFO] [stderr]                                  at /rustc/f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stderr]      1:     0x5d1acacf46a2 - std::backtrace_rs::backtrace::trace_unsynchronized::h8e01642c3e7b2e43
[INFO] [stderr]                                  at /rustc/f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stderr]      2:     0x5d1acacf46a2 - std::sys::backtrace::_print_fmt::h77160e868f55b489
[INFO] [stderr]                                  at /rustc/f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b/library/std/src/sys/backtrace.rs:66:9
[INFO] [stderr]      3:     0x5d1acacf46a2 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h86816ab5bed03abd
[INFO] [stderr]                                  at /rustc/f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b/library/std/src/sys/backtrace.rs:39:26
[INFO] [stderr]      4:     0x5d1acad03f6f - core::fmt::rt::Argument::fmt::h7537687515eb9d20
[INFO] [stderr]                                  at /rustc/f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b/library/core/src/fmt/rt.rs:173:76
[INFO] [stderr]      5:     0x5d1acad03f6f - core::fmt::write::h514dae0dfa4deb62
[INFO] [stderr]                                  at /rustc/f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b/library/core/src/fmt/mod.rs:1469:25
[INFO] [stderr]      6:     0x5d1acacd2883 - std::io::default_write_fmt::he54a134961fc9925
[INFO] [stderr]                                  at /rustc/f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b/library/std/src/io/mod.rs:639:11
[INFO] [stderr]      7:     0x5d1acacd2883 - std::io::Write::write_fmt::h251346ee5c06db9e
[INFO] [stderr]                                  at /rustc/f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b/library/std/src/io/mod.rs:1954:13
[INFO] [stderr]      8:     0x5d1acacd7c72 - std::sys::backtrace::BacktraceLock::print::h8f0fd6e76f7a78f6
[INFO] [stderr]                                  at /rustc/f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b/library/std/src/sys/backtrace.rs:42:9
[INFO] [stderr]      9:     0x5d1acacd97af - std::panicking::default_hook::{{closure}}::hd4616c16f9170728
[INFO] [stderr]                                  at /rustc/f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b/library/std/src/panicking.rs:301:27
[INFO] [stderr]     10:     0x5d1acacd9609 - std::panicking::default_hook::hf57a825abaeaf8f2
[INFO] [stderr]                                  at /rustc/f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b/library/std/src/panicking.rs:328:9
[INFO] [stderr]     11:     0x5d1acacd9e35 - std::panicking::panic_with_hook::h2106eda2577ac1d1
[INFO] [stderr]                                  at /rustc/f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b/library/std/src/panicking.rs:834:13
[INFO] [stderr]     12:     0x5d1acacd9c1a - std::panicking::panic_handler::{{closure}}::h31145d8ce6be191b
[INFO] [stderr]                                  at /rustc/f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b/library/std/src/panicking.rs:707:13
[INFO] [stderr]     13:     0x5d1acacd7da9 - std::sys::backtrace::__rust_end_short_backtrace::hfe6436ea26285ee7
[INFO] [stderr]                                  at /rustc/f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b/library/std/src/sys/backtrace.rs:174:18
[INFO] [stderr]     14:     0x5d1acacc724d - __rustc[b7055cc68e17015c]::rust_begin_unwind
[INFO] [stderr]                                  at /rustc/f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b/library/std/src/panicking.rs:698:5
[INFO] [stderr]     15:     0x5d1acad07950 - core::panicking::panic_fmt::h7c9830ee7d78611e
[INFO] [stderr]                                  at /rustc/f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b/library/core/src/panicking.rs:80:14
[INFO] [stderr]     16:     0x5d1acad06fd6 - core::result::unwrap_failed::h109630239261f134
[INFO] [stderr]                                  at /rustc/f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b/library/core/src/result.rs:1862:5
[INFO] [stderr]     17:     0x5d1acab487c9 - variadic_t_codegen::generate::he416375c7822e967
[INFO] [stderr]     18:     0x5d1acab48597 - build_script_build::main::h5476c79cfc84a3fb
[INFO] [stderr]     19:     0x5d1acab49343 - core::ops::function::FnOnce::call_once::h33e6cf0bdf9943ff
[INFO] [stderr]     20:     0x5d1acab48e86 - std::sys::backtrace::__rust_begin_short_backtrace::h937abf932f9810af
[INFO] [stderr]     21:     0x5d1acab48de9 - std::rt::lang_start::{{closure}}::hc7ee60abb3816dbc
[INFO] [stderr]     22:     0x5d1acacd3c30 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::hd6f37eb5295dd5be
[INFO] [stderr]                                  at /rustc/f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b/library/core/src/ops/function.rs:287:21
[INFO] [stderr]     23:     0x5d1acacd3c30 - std::panicking::catch_unwind::do_call::h3815aed4c6b7b95d
[INFO] [stderr]                                  at /rustc/f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b/library/std/src/panicking.rs:590:40
[INFO] [stderr]     24:     0x5d1acacd3c30 - std::panicking::catch_unwind::h85465135f484172f
[INFO] [stderr]                                  at /rustc/f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b/library/std/src/panicking.rs:553:19
[INFO] [stderr]     25:     0x5d1acacd3c30 - std::panic::catch_unwind::hf2aa9366fc13ac15
[INFO] [stderr]                                  at /rustc/f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b/library/std/src/panic.rs:359:14
[INFO] [stderr]     26:     0x5d1acacd3c30 - std::rt::lang_start_internal::{{closure}}::hbfe27d8fd739a4f8
[INFO] [stderr]                                  at /rustc/f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b/library/std/src/rt.rs:175:24
[INFO] [stderr]     27:     0x5d1acacd3c30 - std::panicking::catch_unwind::do_call::hccfb13b3b7b74f6f
[INFO] [stderr]                                  at /rustc/f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b/library/std/src/panicking.rs:590:40
[INFO] [stderr]     28:     0x5d1acacd3c30 - std::panicking::catch_unwind::hae657d0473b4e58d
[INFO] [stderr]                                  at /rustc/f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b/library/std/src/panicking.rs:553:19
[INFO] [stderr]     29:     0x5d1acacd3c30 - std::panic::catch_unwind::h7f34feed7ea39f44
[INFO] [stderr]                                  at /rustc/f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b/library/std/src/panic.rs:359:14
[INFO] [stderr]     30:     0x5d1acacd3c30 - std::rt::lang_start_internal::h73d296ed2be53c98
[INFO] [stderr]                                  at /rustc/f5711a55f5d5e2f942057d0f6d648dd2d8b2c37b/library/std/src/rt.rs:171:5
[INFO] [stderr]     31:     0x5d1acab48dd1 - std::rt::lang_start::hae6dc4c07b230809
[INFO] [stderr]     32:     0x5d1acab49d95 - main
[INFO] [stderr]     33:     0x7d0768c111ca - <unknown>
[INFO] [stderr]     34:     0x7d0768c1128b - __libc_start_main
[INFO] [stderr]     35:     0x5d1acab483a5 - _start
[INFO] [stderr]     36:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "9a481747c00016bb07249610d62b9bfd351919f0a859a1010bd0a9c9f613c122", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a481747c00016bb07249610d62b9bfd351919f0a859a1010bd0a9c9f613c122", kill_on_drop: false }`
[INFO] [stdout] 9a481747c00016bb07249610d62b9bfd351919f0a859a1010bd0a9c9f613c122
