[INFO] fetching crate core_io 0.1.20210325... [INFO] testing core_io-0.1.20210325 against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-7 [INFO] extracting crate core_io 0.1.20210325 into /workspace/builds/worker-5-tc2/source [INFO] started tweaking crates.io crate core_io 0.1.20210325 [INFO] finished tweaking crates.io crate core_io 0.1.20210325 [INFO] tweaked toml for crates.io crate core_io 0.1.20210325 written to /workspace/builds/worker-5-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate core_io 0.1.20210325 on toolchain c2e32f1c9652b13ed99608599c1e855462f421f3 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 2 packages to latest compatible versions [INFO] [stderr] Adding rustc_version v0.1.7 (available: v0.4.1) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] bd4ba06655059a5d33ca5f6e7aa25da17b79a751c1ad63ba2e48c480b46b537e [INFO] running `Command { std: "docker" "start" "-a" "bd4ba06655059a5d33ca5f6e7aa25da17b79a751c1ad63ba2e48c480b46b537e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "bd4ba06655059a5d33ca5f6e7aa25da17b79a751c1ad63ba2e48c480b46b537e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "bd4ba06655059a5d33ca5f6e7aa25da17b79a751c1ad63ba2e48c480b46b537e", kill_on_drop: false }` [INFO] [stdout] bd4ba06655059a5d33ca5f6e7aa25da17b79a751c1ad63ba2e48c480b46b537e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 5dec182f59a28ac3444b2b3ad7368f71b9a23abf0e138cb5dc31024c946ea12d [INFO] running `Command { std: "docker" "start" "-a" "5dec182f59a28ac3444b2b3ad7368f71b9a23abf0e138cb5dc31024c946ea12d", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024 [INFO] [stderr] Compiling semver v0.1.20 [INFO] [stderr] Compiling rustc_version v0.1.7 [INFO] [stderr] Compiling core_io v0.1.20210325 (/opt/rustwide/workdir) [INFO] [stderr] error: failed to run custom build command for `core_io v0.1.20210325 (/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/core_io-4229bd5f1955963e/build-script-build` (exit status: 101) [INFO] [stderr] --- stderr [INFO] [stderr] [INFO] [stderr] thread 'main' (69) panicked at build.rs:73:69: [INFO] [stderr] Unknown compiler version, upgrade core_io? [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x56825d565cc2 - std::backtrace_rs::backtrace::libunwind::trace::h9ea1e07ac77a25d7 [INFO] [stderr] at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9 [INFO] [stderr] 1: 0x56825d565cc2 - std::backtrace_rs::backtrace::trace_unsynchronized::h72b75eb83b53d15a [INFO] [stderr] at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14 [INFO] [stderr] 2: 0x56825d565cc2 - std::sys::backtrace::_print_fmt::h255777b7ec902439 [INFO] [stderr] at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/sys/backtrace.rs:66:9 [INFO] [stderr] 3: 0x56825d565cc2 - ::fmt::h8a1ac49fcd7ee8ce [INFO] [stderr] at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/sys/backtrace.rs:39:26 [INFO] [stderr] 4: 0x56825d574b9f - core::fmt::rt::Argument::fmt::h635cbf3c6754cc90 [INFO] [stderr] at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/core/src/fmt/rt.rs:173:76 [INFO] [stderr] 5: 0x56825d574b9f - core::fmt::write::hbdcc0ec4f1bab1db [INFO] [stderr] at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/core/src/fmt/mod.rs:1469:25 [INFO] [stderr] 6: 0x56825d53c533 - std::io::default_write_fmt::hb29d13affe7e9cd0 [INFO] [stderr] at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/io/mod.rs:639:11 [INFO] [stderr] 7: 0x56825d53c533 - std::io::Write::write_fmt::hec441b8c6eca32b9 [INFO] [stderr] at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/io/mod.rs:1954:13 [INFO] [stderr] 8: 0x56825d545882 - std::sys::backtrace::BacktraceLock::print::h052febbd86f7bf07 [INFO] [stderr] at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/sys/backtrace.rs:42:9 [INFO] [stderr] 9: 0x56825d54760c - std::panicking::default_hook::{{closure}}::h66aeee20dd470abb [INFO] [stderr] at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/panicking.rs:301:27 [INFO] [stderr] 10: 0x56825d547466 - std::panicking::default_hook::h9d66b9642014ce48 [INFO] [stderr] at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/panicking.rs:328:9 [INFO] [stderr] 11: 0x56825d547be5 - std::panicking::panic_with_hook::h6d5921a1a1fa5a8e [INFO] [stderr] at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/panicking.rs:834:13 [INFO] [stderr] 12: 0x56825d547a7a - std::panicking::panic_handler::{{closure}}::hafeef6f707d43542 [INFO] [stderr] at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/panicking.rs:707:13 [INFO] [stderr] 13: 0x56825d5459b9 - std::sys::backtrace::__rust_end_short_backtrace::h08cbc3319a3d0120 [INFO] [stderr] at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/sys/backtrace.rs:174:18 [INFO] [stderr] 14: 0x56825d530d3d - __rustc[ce5c411ff86ab1b2]::rust_begin_unwind [INFO] [stderr] at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/panicking.rs:698:5 [INFO] [stderr] 15: 0x56825d5785e0 - core::panicking::panic_fmt::h774fb860369a0f7b [INFO] [stderr] at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/core/src/panicking.rs:80:14 [INFO] [stderr] 16: 0x56825d577b8b - core::panicking::panic_display::he03706704e11228d [INFO] [stderr] at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/core/src/panicking.rs:264:5 [INFO] [stderr] 17: 0x56825d577b8b - core::option::expect_failed::h93f7d068e0e46bec [INFO] [stderr] at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/core/src/option.rs:2183:5 [INFO] [stderr] 18: 0x56825d523073 - core::option::Option::expect::h04724cffd8bc14b6 [INFO] [stderr] 19: 0x56825d52047c - build_script_build::main::he41e312dbc475acc [INFO] [stderr] 20: 0x56825d521c13 - core::ops::function::FnOnce::call_once::h16557f3e0aa8b525 [INFO] [stderr] 21: 0x56825d521926 - std::sys::backtrace::__rust_begin_short_backtrace::h3fd9372381c212e5 [INFO] [stderr] 22: 0x56825d521619 - std::rt::lang_start::{{closure}}::h99f8e2b07b00aa99 [INFO] [stderr] 23: 0x56825d53dbc0 - core::ops::function::impls:: for &F>::call_once::h9095abc9db71b07e [INFO] [stderr] at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/core/src/ops/function.rs:287:21 [INFO] [stderr] 24: 0x56825d53dbc0 - std::panicking::catch_unwind::do_call::h6cf5dc461761418c [INFO] [stderr] at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/panicking.rs:590:40 [INFO] [stderr] 25: 0x56825d53dbc0 - std::panicking::catch_unwind::h60074fd2327f40bd [INFO] [stderr] at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/panicking.rs:553:19 [INFO] [stderr] 26: 0x56825d53dbc0 - std::panic::catch_unwind::heb14fa8e39d051cf [INFO] [stderr] at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/panic.rs:359:14 [INFO] [stderr] 27: 0x56825d53dbc0 - std::rt::lang_start_internal::{{closure}}::hfb550bec36306a19 [INFO] [stderr] at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/rt.rs:175:24 [INFO] [stderr] 28: 0x56825d53dbc0 - std::panicking::catch_unwind::do_call::hc805f36f35b6d647 [INFO] [stderr] at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/panicking.rs:590:40 [INFO] [stderr] 29: 0x56825d53dbc0 - std::panicking::catch_unwind::hb8d32f0195463ad2 [INFO] [stderr] at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/panicking.rs:553:19 [INFO] [stderr] 30: 0x56825d53dbc0 - std::panic::catch_unwind::hcebe3b1d5adfc5a2 [INFO] [stderr] at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/panic.rs:359:14 [INFO] [stderr] 31: 0x56825d53dbc0 - std::rt::lang_start_internal::h27f55ed238aa26df [INFO] [stderr] at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/rt.rs:171:5 [INFO] [stderr] 32: 0x56825d521601 - std::rt::lang_start::h56285652ab4be558 [INFO] [stderr] 33: 0x56825d524925 - main [INFO] [stderr] 34: 0x79abf0bf81ca - [INFO] [stderr] 35: 0x79abf0bf828b - __libc_start_main [INFO] [stderr] 36: 0x56825d51f965 - _start [INFO] [stderr] 37: 0x0 - [INFO] running `Command { std: "docker" "inspect" "5dec182f59a28ac3444b2b3ad7368f71b9a23abf0e138cb5dc31024c946ea12d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5dec182f59a28ac3444b2b3ad7368f71b9a23abf0e138cb5dc31024c946ea12d", kill_on_drop: false }` [INFO] [stdout] 5dec182f59a28ac3444b2b3ad7368f71b9a23abf0e138cb5dc31024c946ea12d