[INFO] fetching crate core_io 0.1.20210325... [INFO] checking core_io-0.1.20210325 against master#0a8629bff642c3c3b84bb644c0099194f063b627 for pr-86231 [INFO] extracting crate core_io 0.1.20210325 into /workspace/builds/worker-2/source [INFO] validating manifest of crates.io crate core_io 0.1.20210325 on toolchain 0a8629bff642c3c3b84bb644c0099194f063b627 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0a8629bff642c3c3b84bb644c0099194f063b627" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [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-2/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0a8629bff642c3c3b84bb644c0099194f063b627" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0a8629bff642c3c3b84bb644c0099194f063b627" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+0a8629bff642c3c3b84bb644c0099194f063b627" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 9a8e1ae7601d06227a8a2f2251d57dc12a8ab33ef6a528daa9e3861fb080a45b [INFO] running `Command { std: "docker" "start" "-a" "9a8e1ae7601d06227a8a2f2251d57dc12a8ab33ef6a528daa9e3861fb080a45b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "9a8e1ae7601d06227a8a2f2251d57dc12a8ab33ef6a528daa9e3861fb080a45b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9a8e1ae7601d06227a8a2f2251d57dc12a8ab33ef6a528daa9e3861fb080a45b", kill_on_drop: false }` [INFO] [stdout] 9a8e1ae7601d06227a8a2f2251d57dc12a8ab33ef6a528daa9e3861fb080a45b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+0a8629bff642c3c3b84bb644c0099194f063b627" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] c542b6db6051bb12ae68ee16745165b71a9b251e3f5edd328d8bc9e290e66e7c [INFO] running `Command { std: "docker" "start" "-a" "c542b6db6051bb12ae68ee16745165b71a9b251e3f5edd328d8bc9e290e66e7c", kill_on_drop: false }` [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] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `/opt/rustwide/target/debug/build/core_io-fcf34645d8cafef0/build-script-build` (exit status: 101) [INFO] [stderr] --- stderr [INFO] [stderr] thread 'main' panicked at 'Unknown compiler version, upgrade core_io?', build.rs:73:69 [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x55aee99d1110 - std::backtrace_rs::backtrace::libunwind::trace::hfa838fc631229987 [INFO] [stderr] at /rustc/0a8629bff642c3c3b84bb644c0099194f063b627/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5 [INFO] [stderr] 1: 0x55aee99d1110 - std::backtrace_rs::backtrace::trace_unsynchronized::h93a23e36ec026219 [INFO] [stderr] at /rustc/0a8629bff642c3c3b84bb644c0099194f063b627/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stderr] 2: 0x55aee99d1110 - std::sys_common::backtrace::_print_fmt::hba56c7f796a4152f [INFO] [stderr] at /rustc/0a8629bff642c3c3b84bb644c0099194f063b627/library/std/src/sys_common/backtrace.rs:67:5 [INFO] [stderr] 3: 0x55aee99d1110 - ::fmt::h214637f1e26310e1 [INFO] [stderr] at /rustc/0a8629bff642c3c3b84bb644c0099194f063b627/library/std/src/sys_common/backtrace.rs:46:22 [INFO] [stderr] 4: 0x55aee99edf3c - core::fmt::write::h7aa6cd0067dca82a [INFO] [stderr] at /rustc/0a8629bff642c3c3b84bb644c0099194f063b627/library/core/src/fmt/mod.rs:1110:17 [INFO] [stderr] 5: 0x55aee99cef85 - std::io::Write::write_fmt::heb07fc0616bbd06d [INFO] [stderr] at /rustc/0a8629bff642c3c3b84bb644c0099194f063b627/library/std/src/io/mod.rs:1588:15 [INFO] [stderr] 6: 0x55aee99d2ecb - std::sys_common::backtrace::_print::h2c2441c37e894fb5 [INFO] [stderr] at /rustc/0a8629bff642c3c3b84bb644c0099194f063b627/library/std/src/sys_common/backtrace.rs:49:5 [INFO] [stderr] 7: 0x55aee99d2ecb - std::sys_common::backtrace::print::h4fb679ac439362ea [INFO] [stderr] at /rustc/0a8629bff642c3c3b84bb644c0099194f063b627/library/std/src/sys_common/backtrace.rs:36:9 [INFO] [stderr] 8: 0x55aee99d2ecb - std::panicking::default_hook::{{closure}}::h56bbadec2356e5d2 [INFO] [stderr] at /rustc/0a8629bff642c3c3b84bb644c0099194f063b627/library/std/src/panicking.rs:208:50 [INFO] [stderr] 9: 0x55aee99d29a1 - std::panicking::default_hook::hb25822b45f6fdc4e [INFO] [stderr] at /rustc/0a8629bff642c3c3b84bb644c0099194f063b627/library/std/src/panicking.rs:225:9 [INFO] [stderr] 10: 0x55aee99d3594 - std::panicking::rust_panic_with_hook::h4da5578e7277d2d4 [INFO] [stderr] at /rustc/0a8629bff642c3c3b84bb644c0099194f063b627/library/std/src/panicking.rs:622:17 [INFO] [stderr] 11: 0x55aee99d3077 - std::panicking::begin_panic_handler::{{closure}}::h003783ddb3cba4e8 [INFO] [stderr] at /rustc/0a8629bff642c3c3b84bb644c0099194f063b627/library/std/src/panicking.rs:519:13 [INFO] [stderr] 12: 0x55aee99d15ec - std::sys_common::backtrace::__rust_end_short_backtrace::hd138d2032731ed21 [INFO] [stderr] at /rustc/0a8629bff642c3c3b84bb644c0099194f063b627/library/std/src/sys_common/backtrace.rs:141:18 [INFO] [stderr] 13: 0x55aee99d2fd9 - rust_begin_unwind [INFO] [stderr] at /rustc/0a8629bff642c3c3b84bb644c0099194f063b627/library/std/src/panicking.rs:515:5 [INFO] [stderr] 14: 0x55aee999e211 - core::panicking::panic_fmt::hbe99dddd3092ba3c [INFO] [stderr] at /rustc/0a8629bff642c3c3b84bb644c0099194f063b627/library/core/src/panicking.rs:92:14 [INFO] [stderr] 15: 0x55aee999e103 - core::option::expect_failed::h52daa91c8ef676fe [INFO] [stderr] at /rustc/0a8629bff642c3c3b84bb644c0099194f063b627/library/core/src/option.rs:1243:5 [INFO] [stderr] 16: 0x55aee99a176e - core::option::Option::expect::hfd2140aade898c39 [INFO] [stderr] at /rustc/0a8629bff642c3c3b84bb644c0099194f063b627/library/core/src/option.rs:351:21 [INFO] [stderr] 17: 0x55aee99a4551 - build_script_build::main::h09a0cf4341a3a40d [INFO] [stderr] at /opt/rustwide/workdir/build.rs:73:4 [INFO] [stderr] 18: 0x55aee99a36ab - core::ops::function::FnOnce::call_once::he8764f6ae1d093e4 [INFO] [stderr] at /rustc/0a8629bff642c3c3b84bb644c0099194f063b627/library/core/src/ops/function.rs:227:5 [INFO] [stderr] 19: 0x55aee99a519e - std::sys_common::backtrace::__rust_begin_short_backtrace::h7c1f10f5c0b350a6 [INFO] [stderr] at /rustc/0a8629bff642c3c3b84bb644c0099194f063b627/library/std/src/sys_common/backtrace.rs:125:18 [INFO] [stderr] 20: 0x55aee99a5221 - std::rt::lang_start::{{closure}}::h335255dd661f1c7d [INFO] [stderr] at /rustc/0a8629bff642c3c3b84bb644c0099194f063b627/library/std/src/rt.rs:49:18 [INFO] [stderr] 21: 0x55aee99d3a99 - core::ops::function::impls:: for &F>::call_once::hd933294140eb11aa [INFO] [stderr] at /rustc/0a8629bff642c3c3b84bb644c0099194f063b627/library/core/src/ops/function.rs:259:13 [INFO] [stderr] 22: 0x55aee99d3a99 - std::panicking::try::do_call::h8342fe3d9218b807 [INFO] [stderr] at /rustc/0a8629bff642c3c3b84bb644c0099194f063b627/library/std/src/panicking.rs:401:40 [INFO] [stderr] 23: 0x55aee99d3a99 - std::panicking::try::hcbd73d6d0d58a8f0 [INFO] [stderr] at /rustc/0a8629bff642c3c3b84bb644c0099194f063b627/library/std/src/panicking.rs:365:19 [INFO] [stderr] 24: 0x55aee99d3a99 - std::panic::catch_unwind::hde9cf73f810acfcc [INFO] [stderr] at /rustc/0a8629bff642c3c3b84bb644c0099194f063b627/library/std/src/panic.rs:434:14 [INFO] [stderr] 25: 0x55aee99d3a99 - std::rt::lang_start_internal::heb39e7ea6e5d6f6f [INFO] [stderr] at /rustc/0a8629bff642c3c3b84bb644c0099194f063b627/library/std/src/rt.rs:34:21 [INFO] [stderr] 26: 0x55aee99a5200 - std::rt::lang_start::hbf86fe9536ab1def [INFO] [stderr] at /rustc/0a8629bff642c3c3b84bb644c0099194f063b627/library/std/src/rt.rs:48:5 [INFO] [stderr] 27: 0x55aee99a50fc - main [INFO] [stderr] 28: 0x7f6e047010b3 - __libc_start_main [INFO] [stderr] 29: 0x55aee999e96e - _start [INFO] [stderr] 30: 0x0 - [INFO] running `Command { std: "docker" "inspect" "c542b6db6051bb12ae68ee16745165b71a9b251e3f5edd328d8bc9e290e66e7c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c542b6db6051bb12ae68ee16745165b71a9b251e3f5edd328d8bc9e290e66e7c", kill_on_drop: false }` [INFO] [stdout] c542b6db6051bb12ae68ee16745165b71a9b251e3f5edd328d8bc9e290e66e7c