[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 try#5fee451ebd94296ea05214e819c311e164b30af6 for pr-139042
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCaellian%2Ftypelist" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Caellian/typelist on toolchain 5fee451ebd94296ea05214e819c311e164b30af6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5fee451ebd94296ea05214e819c311e164b30af6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-4-tc2/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-4-tc2/source/Cargo.toml
[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" "+5fee451ebd94296ea05214e819c311e164b30af6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+5fee451ebd94296ea05214e819c311e164b30af6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b1881cae65a09f77bff2daf6af9592afb5e8f74b18e7163223e80d7461b63a5f
[INFO] running `Command { std: "docker" "start" "-a" "b1881cae65a09f77bff2daf6af9592afb5e8f74b18e7163223e80d7461b63a5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b1881cae65a09f77bff2daf6af9592afb5e8f74b18e7163223e80d7461b63a5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b1881cae65a09f77bff2daf6af9592afb5e8f74b18e7163223e80d7461b63a5f", kill_on_drop: false }`
[INFO] [stdout] b1881cae65a09f77bff2daf6af9592afb5e8f74b18e7163223e80d7461b63a5f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+5fee451ebd94296ea05214e819c311e164b30af6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 214600b8fd3838b44859f3001f3e78f513a0b0117cb6e989a2853da09747ea60
[INFO] running `Command { std: "docker" "start" "-a" "214600b8fd3838b44859f3001f3e78f513a0b0117cb6e989a2853da09747ea60", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling prettyplease v0.2.22
[INFO] [stderr]    Compiling 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)]` 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]     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)]` 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)]` 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-7d6df2cdbefee867/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr] 
[INFO] [stderr]   thread 'main' 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:     0x5dbee22affa2 - std::backtrace_rs::backtrace::libunwind::trace::h76a675e3bed93fe4
[INFO] [stderr]                                  at /rustc/5fee451ebd94296ea05214e819c311e164b30af6/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stderr]      1:     0x5dbee22affa2 - std::backtrace_rs::backtrace::trace_unsynchronized::hbe24d41fddbf213a
[INFO] [stderr]                                  at /rustc/5fee451ebd94296ea05214e819c311e164b30af6/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stderr]      2:     0x5dbee22affa2 - std::sys::backtrace::_print_fmt::h61bce63f9138e231
[INFO] [stderr]                                  at /rustc/5fee451ebd94296ea05214e819c311e164b30af6/library/std/src/sys/backtrace.rs:66:9
[INFO] [stderr]      3:     0x5dbee22affa2 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h83064dac7c3d7d4e
[INFO] [stderr]                                  at /rustc/5fee451ebd94296ea05214e819c311e164b30af6/library/std/src/sys/backtrace.rs:39:26
[INFO] [stderr]      4:     0x5dbee22ce273 - core::fmt::rt::Argument::fmt::h3b5ab7e22cd8a04c
[INFO] [stderr]                                  at /rustc/5fee451ebd94296ea05214e819c311e164b30af6/library/core/src/fmt/rt.rs:184:76
[INFO] [stderr]      5:     0x5dbee22ce273 - core::fmt::write::ha0b4fd5f79fd7783
[INFO] [stderr]                                  at /rustc/5fee451ebd94296ea05214e819c311e164b30af6/library/core/src/fmt/mod.rs:1480:21
[INFO] [stderr]      6:     0x5dbee22add53 - std::io::default_write_fmt::hbd4baadb0e6e75fe
[INFO] [stderr]                                  at /rustc/5fee451ebd94296ea05214e819c311e164b30af6/library/std/src/io/mod.rs:639:11
[INFO] [stderr]      7:     0x5dbee22add53 - std::io::Write::write_fmt::hc34e0f4578180512
[INFO] [stderr]                                  at /rustc/5fee451ebd94296ea05214e819c311e164b30af6/library/std/src/io/mod.rs:1914:13
[INFO] [stderr]      8:     0x5dbee22afdf2 - std::sys::backtrace::BacktraceLock::print::hef7ee76eb345d78b
[INFO] [stderr]                                  at /rustc/5fee451ebd94296ea05214e819c311e164b30af6/library/std/src/sys/backtrace.rs:42:9
[INFO] [stderr]      9:     0x5dbee22b0e62 - std::panicking::default_hook::{{closure}}::h4d1fcb690be0806e
[INFO] [stderr]                                  at /rustc/5fee451ebd94296ea05214e819c311e164b30af6/library/std/src/panicking.rs:300:22
[INFO] [stderr]     10:     0x5dbee22b0c65 - std::panicking::default_hook::h678d64c04011e5a5
[INFO] [stderr]                                  at /rustc/5fee451ebd94296ea05214e819c311e164b30af6/library/std/src/panicking.rs:327:9
[INFO] [stderr]     11:     0x5dbee22b1772 - std::panicking::rust_panic_with_hook::hb834795fb6cb5eb3
[INFO] [stderr]                                  at /rustc/5fee451ebd94296ea05214e819c311e164b30af6/library/std/src/panicking.rs:833:13
[INFO] [stderr]     12:     0x5dbee22b160a - std::panicking::begin_panic_handler::{{closure}}::h93e25349bcf97d0e
[INFO] [stderr]                                  at /rustc/5fee451ebd94296ea05214e819c311e164b30af6/library/std/src/panicking.rs:706:13
[INFO] [stderr]     13:     0x5dbee22b0499 - std::sys::backtrace::__rust_end_short_backtrace::hce12881bdea21d65
[INFO] [stderr]                                  at /rustc/5fee451ebd94296ea05214e819c311e164b30af6/library/std/src/sys/backtrace.rs:168:18
[INFO] [stderr]     14:     0x5dbee22b129d - __rustc[64dab68cc01ac0bb]::rust_begin_unwind
[INFO] [stderr]                                  at /rustc/5fee451ebd94296ea05214e819c311e164b30af6/library/std/src/panicking.rs:697:5
[INFO] [stderr]     15:     0x5dbee22cd400 - core::panicking::panic_fmt::h8f158a07adb5c9bf
[INFO] [stderr]                                  at /rustc/5fee451ebd94296ea05214e819c311e164b30af6/library/core/src/panicking.rs:75:14
[INFO] [stderr]     16:     0x5dbee22cd896 - core::result::unwrap_failed::h1eaf0d9a403ddfdf
[INFO] [stderr]                                  at /rustc/5fee451ebd94296ea05214e819c311e164b30af6/library/core/src/result.rs:1704:5
[INFO] [stderr]     17:     0x5dbee2112ef9 - variadic_t_codegen::generate::h5f5419c2c9499b4d
[INFO] [stderr]     18:     0x5dbee21145d7 - build_script_build::main::hf33aa61bc6b92986
[INFO] [stderr]     19:     0x5dbee2113af3 - core::ops::function::FnOnce::call_once::h52f55bcd5ca5ba77
[INFO] [stderr]     20:     0x5dbee2113556 - std::sys::backtrace::__rust_begin_short_backtrace::h9341e3602dd1c777
[INFO] [stderr]     21:     0x5dbee21134b9 - std::rt::lang_start::{{closure}}::hfeb97eceb228bd50
[INFO] [stderr]     22:     0x5dbee22ab240 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h0718dfbaf4dda687
[INFO] [stderr]                                  at /rustc/5fee451ebd94296ea05214e819c311e164b30af6/library/core/src/ops/function.rs:284:13
[INFO] [stderr]     23:     0x5dbee22ab240 - std::panicking::try::do_call::hac94109376a2feb6
[INFO] [stderr]                                  at /rustc/5fee451ebd94296ea05214e819c311e164b30af6/library/std/src/panicking.rs:589:40
[INFO] [stderr]     24:     0x5dbee22ab240 - std::panicking::try::h80ad42a7225a38d6
[INFO] [stderr]                                  at /rustc/5fee451ebd94296ea05214e819c311e164b30af6/library/std/src/panicking.rs:552:19
[INFO] [stderr]     25:     0x5dbee22ab240 - std::panic::catch_unwind::h6128c327fb0ebbf6
[INFO] [stderr]                                  at /rustc/5fee451ebd94296ea05214e819c311e164b30af6/library/std/src/panic.rs:359:14
[INFO] [stderr]     26:     0x5dbee22ab240 - std::rt::lang_start_internal::{{closure}}::h49cf5bbb1bc1d295
[INFO] [stderr]                                  at /rustc/5fee451ebd94296ea05214e819c311e164b30af6/library/std/src/rt.rs:168:24
[INFO] [stderr]     27:     0x5dbee22ab240 - std::panicking::try::do_call::hb39c0d6e393b1411
[INFO] [stderr]                                  at /rustc/5fee451ebd94296ea05214e819c311e164b30af6/library/std/src/panicking.rs:589:40
[INFO] [stderr]     28:     0x5dbee22ab240 - std::panicking::try::he79a2dee8af6d87b
[INFO] [stderr]                                  at /rustc/5fee451ebd94296ea05214e819c311e164b30af6/library/std/src/panicking.rs:552:19
[INFO] [stderr]     29:     0x5dbee22ab240 - std::panic::catch_unwind::hb8f4a6fb4188066d
[INFO] [stderr]                                  at /rustc/5fee451ebd94296ea05214e819c311e164b30af6/library/std/src/panic.rs:359:14
[INFO] [stderr]     30:     0x5dbee22ab240 - std::rt::lang_start_internal::ha33f3ff8925b54c0
[INFO] [stderr]                                  at /rustc/5fee451ebd94296ea05214e819c311e164b30af6/library/std/src/rt.rs:164:5
[INFO] [stderr]     31:     0x5dbee21134a1 - std::rt::lang_start::h021a3d2b84ec315a
[INFO] [stderr]     32:     0x5dbee2114685 - main
[INFO] [stderr]     33:     0x722772cd81ca - <unknown>
[INFO] [stderr]     34:     0x722772cd828b - __libc_start_main
[INFO] [stderr]     35:     0x5dbee2112c95 - _start
[INFO] [stderr]     36:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "214600b8fd3838b44859f3001f3e78f513a0b0117cb6e989a2853da09747ea60", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "214600b8fd3838b44859f3001f3e78f513a0b0117cb6e989a2853da09747ea60", kill_on_drop: false }`
[INFO] [stdout] 214600b8fd3838b44859f3001f3e78f513a0b0117cb6e989a2853da09747ea60
