[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#04ff05c9c0cfbca33115c5f1b8bb20a66a54b799 for pr-147834
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCaellian%2Ftypelist" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-1-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-1-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Caellian/typelist on toolchain 04ff05c9c0cfbca33115c5f1b8bb20a66a54b799
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+04ff05c9c0cfbca33115c5f1b8bb20a66a54b799" "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" "+04ff05c9c0cfbca33115c5f1b8bb20a66a54b799" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+04ff05c9c0cfbca33115c5f1b8bb20a66a54b799" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b2b43dd30a2ac726e6ab387b30d545f90130a4588cab60e5d9293b16d939a986
[INFO] running `Command { std: "docker" "start" "-a" "b2b43dd30a2ac726e6ab387b30d545f90130a4588cab60e5d9293b16d939a986", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b2b43dd30a2ac726e6ab387b30d545f90130a4588cab60e5d9293b16d939a986", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2b43dd30a2ac726e6ab387b30d545f90130a4588cab60e5d9293b16d939a986", kill_on_drop: false }`
[INFO] [stdout] b2b43dd30a2ac726e6ab387b30d545f90130a4588cab60e5d9293b16d939a986
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+04ff05c9c0cfbca33115c5f1b8bb20a66a54b799" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c1933192142aff907c18a2298710759a6d623d59de563be19aaa943c694445a8
[INFO] running `Command { std: "docker" "start" "-a" "c1933192142aff907c18a2298710759a6d623d59de563be19aaa943c694445a8", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling prettyplease v0.2.22
[INFO] [stderr]     Checking unicode-ident v1.0.13
[INFO] [stderr]     Checking quote v1.0.37
[INFO] [stderr]     Checking syn v2.0.79
[INFO] [stderr]     Checking variadic-t-codegen v0.1.0 (/opt/rustwide/workdir/codegen)
[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: 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: 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]     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] [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' (232) 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:     0x5b328d9e16e2 - std::backtrace_rs::backtrace::libunwind::trace::h5b10d8d38c4bcd99
[INFO] [stderr]                                  at /rustc/04ff05c9c0cfbca33115c5f1b8bb20a66a54b799/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stderr]      1:     0x5b328d9e16e2 - std::backtrace_rs::backtrace::trace_unsynchronized::h91ff6307cb600af0
[INFO] [stderr]                                  at /rustc/04ff05c9c0cfbca33115c5f1b8bb20a66a54b799/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stderr]      2:     0x5b328d9e16e2 - std::sys::backtrace::_print_fmt::h9aed4c565cef2a51
[INFO] [stderr]                                  at /rustc/04ff05c9c0cfbca33115c5f1b8bb20a66a54b799/library/std/src/sys/backtrace.rs:66:9
[INFO] [stderr]      3:     0x5b328d9e16e2 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h6c686dc381194ca8
[INFO] [stderr]                                  at /rustc/04ff05c9c0cfbca33115c5f1b8bb20a66a54b799/library/std/src/sys/backtrace.rs:39:26
[INFO] [stderr]      4:     0x5b328d9f0fcf - core::fmt::rt::Argument::fmt::ha6ca7c473cfcc90b
[INFO] [stderr]                                  at /rustc/04ff05c9c0cfbca33115c5f1b8bb20a66a54b799/library/core/src/fmt/rt.rs:173:76
[INFO] [stderr]      5:     0x5b328d9f0fcf - core::fmt::write::h2b7e1e4441166417
[INFO] [stderr]                                  at /rustc/04ff05c9c0cfbca33115c5f1b8bb20a66a54b799/library/core/src/fmt/mod.rs:1469:25
[INFO] [stderr]      6:     0x5b328d9bfaa3 - std::io::default_write_fmt::h8c98997065cfd9f0
[INFO] [stderr]                                  at /rustc/04ff05c9c0cfbca33115c5f1b8bb20a66a54b799/library/std/src/io/mod.rs:639:11
[INFO] [stderr]      7:     0x5b328d9bfaa3 - std::io::Write::write_fmt::hdafd4114bd1f888e
[INFO] [stderr]                                  at /rustc/04ff05c9c0cfbca33115c5f1b8bb20a66a54b799/library/std/src/io/mod.rs:1954:13
[INFO] [stderr]      8:     0x5b328d9c4c32 - std::sys::backtrace::BacktraceLock::print::h77ddc3fa97dc90a9
[INFO] [stderr]                                  at /rustc/04ff05c9c0cfbca33115c5f1b8bb20a66a54b799/library/std/src/sys/backtrace.rs:42:9
[INFO] [stderr]      9:     0x5b328d9c676f - std::panicking::default_hook::{{closure}}::he8407a3a28791da3
[INFO] [stderr]                                  at /rustc/04ff05c9c0cfbca33115c5f1b8bb20a66a54b799/library/std/src/panicking.rs:301:27
[INFO] [stderr]     10:     0x5b328d9c65c9 - std::panicking::default_hook::h13a7c8af3befd07d
[INFO] [stderr]                                  at /rustc/04ff05c9c0cfbca33115c5f1b8bb20a66a54b799/library/std/src/panicking.rs:328:9
[INFO] [stderr]     11:     0x5b328d9c6df5 - std::panicking::panic_with_hook::h2e9e4a8ab29bed1b
[INFO] [stderr]                                  at /rustc/04ff05c9c0cfbca33115c5f1b8bb20a66a54b799/library/std/src/panicking.rs:834:13
[INFO] [stderr]     12:     0x5b328d9c6bda - std::panicking::panic_handler::{{closure}}::h532cbb6601506606
[INFO] [stderr]                                  at /rustc/04ff05c9c0cfbca33115c5f1b8bb20a66a54b799/library/std/src/panicking.rs:707:13
[INFO] [stderr]     13:     0x5b328d9c4d69 - std::sys::backtrace::__rust_end_short_backtrace::hc53cbf87d4647961
[INFO] [stderr]                                  at /rustc/04ff05c9c0cfbca33115c5f1b8bb20a66a54b799/library/std/src/sys/backtrace.rs:174:18
[INFO] [stderr]     14:     0x5b328d9b420d - __rustc[8a6c2e5bab0fd969]::rust_begin_unwind
[INFO] [stderr]                                  at /rustc/04ff05c9c0cfbca33115c5f1b8bb20a66a54b799/library/std/src/panicking.rs:698:5
[INFO] [stderr]     15:     0x5b328d9f49b0 - core::panicking::panic_fmt::h6f32932d33196761
[INFO] [stderr]                                  at /rustc/04ff05c9c0cfbca33115c5f1b8bb20a66a54b799/library/core/src/panicking.rs:80:14
[INFO] [stderr]     16:     0x5b328d9f4036 - core::result::unwrap_failed::h333e1e9d882a115c
[INFO] [stderr]                                  at /rustc/04ff05c9c0cfbca33115c5f1b8bb20a66a54b799/library/core/src/result.rs:1862:5
[INFO] [stderr]     17:     0x5b328d835789 - variadic_t_codegen::generate::h405aa9913819730e
[INFO] [stderr]     18:     0x5b328d835557 - build_script_build::main::h86f327f157d531e9
[INFO] [stderr]     19:     0x5b328d836303 - core::ops::function::FnOnce::call_once::h2b425e928ffce0fd
[INFO] [stderr]     20:     0x5b328d835e46 - std::sys::backtrace::__rust_begin_short_backtrace::h42b66ce7162f731d
[INFO] [stderr]     21:     0x5b328d835da9 - std::rt::lang_start::{{closure}}::hed20a0c37de93811
[INFO] [stderr]     22:     0x5b328d9c0bf0 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::hc778f5eee8f06531
[INFO] [stderr]                                  at /rustc/04ff05c9c0cfbca33115c5f1b8bb20a66a54b799/library/core/src/ops/function.rs:287:21
[INFO] [stderr]     23:     0x5b328d9c0bf0 - std::panicking::catch_unwind::do_call::h8642eb90ec4f284b
[INFO] [stderr]                                  at /rustc/04ff05c9c0cfbca33115c5f1b8bb20a66a54b799/library/std/src/panicking.rs:590:40
[INFO] [stderr]     24:     0x5b328d9c0bf0 - std::panicking::catch_unwind::h632d5bee465d35bf
[INFO] [stderr]                                  at /rustc/04ff05c9c0cfbca33115c5f1b8bb20a66a54b799/library/std/src/panicking.rs:553:19
[INFO] [stderr]     25:     0x5b328d9c0bf0 - std::panic::catch_unwind::h8614abbdec605ea5
[INFO] [stderr]                                  at /rustc/04ff05c9c0cfbca33115c5f1b8bb20a66a54b799/library/std/src/panic.rs:359:14
[INFO] [stderr]     26:     0x5b328d9c0bf0 - std::rt::lang_start_internal::{{closure}}::he900e0ef1190ed68
[INFO] [stderr]                                  at /rustc/04ff05c9c0cfbca33115c5f1b8bb20a66a54b799/library/std/src/rt.rs:175:24
[INFO] [stderr]     27:     0x5b328d9c0bf0 - std::panicking::catch_unwind::do_call::h802f9473e2c32f11
[INFO] [stderr]                                  at /rustc/04ff05c9c0cfbca33115c5f1b8bb20a66a54b799/library/std/src/panicking.rs:590:40
[INFO] [stderr]     28:     0x5b328d9c0bf0 - std::panicking::catch_unwind::hf04979aa19129a2f
[INFO] [stderr]                                  at /rustc/04ff05c9c0cfbca33115c5f1b8bb20a66a54b799/library/std/src/panicking.rs:553:19
[INFO] [stderr]     29:     0x5b328d9c0bf0 - std::panic::catch_unwind::hee09ad77e8325352
[INFO] [stderr]                                  at /rustc/04ff05c9c0cfbca33115c5f1b8bb20a66a54b799/library/std/src/panic.rs:359:14
[INFO] [stderr]     30:     0x5b328d9c0bf0 - std::rt::lang_start_internal::hd9b9605d3f6093ca
[INFO] [stderr]                                  at /rustc/04ff05c9c0cfbca33115c5f1b8bb20a66a54b799/library/std/src/rt.rs:171:5
[INFO] [stderr]     31:     0x5b328d835d91 - std::rt::lang_start::he0635b63eea6ba6c
[INFO] [stderr]     32:     0x5b328d836d55 - main
[INFO] [stderr]     33:     0x756ddf5fa1ca - <unknown>
[INFO] [stderr]     34:     0x756ddf5fa28b - __libc_start_main
[INFO] [stderr]     35:     0x5b328d835365 - _start
[INFO] [stderr]     36:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "c1933192142aff907c18a2298710759a6d623d59de563be19aaa943c694445a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1933192142aff907c18a2298710759a6d623d59de563be19aaa943c694445a8", kill_on_drop: false }`
[INFO] [stdout] c1933192142aff907c18a2298710759a6d623d59de563be19aaa943c694445a8
