[INFO] fetching crate core_rustc-serialize 0.3.20-v0.3.19patch1... [INFO] checking core_rustc-serialize-0.3.20-v0.3.19patch1 against try#3e22d1f9053c0fc87629b3c6d5d9567856368e5d for pr-78714 [INFO] extracting crate core_rustc-serialize 0.3.20-v0.3.19patch1 into /workspace/builds/worker-13/source [INFO] validating manifest of crates.io crate core_rustc-serialize 0.3.20-v0.3.19patch1 on toolchain 3e22d1f9053c0fc87629b3c6d5d9567856368e5d [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking crates.io crate core_rustc-serialize 0.3.20-v0.3.19patch1 [INFO] finished tweaking crates.io crate core_rustc-serialize 0.3.20-v0.3.19patch1 [INFO] tweaked toml for crates.io crate core_rustc-serialize 0.3.20-v0.3.19patch1 written to /workspace/builds/worker-13/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded core_collections v0.3.20170409 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 8d4ae5cd633b8873797fa56dc6c14b46f62831a14de5fd88632188889878d31a [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "8d4ae5cd633b8873797fa56dc6c14b46f62831a14de5fd88632188889878d31a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "8d4ae5cd633b8873797fa56dc6c14b46f62831a14de5fd88632188889878d31a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8d4ae5cd633b8873797fa56dc6c14b46f62831a14de5fd88632188889878d31a", kill_on_drop: false }` [INFO] [stdout] 8d4ae5cd633b8873797fa56dc6c14b46f62831a14de5fd88632188889878d31a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 8f036c173fa53997c9a3366394ae0722143f5859b7a5ead8b49fa6b4aa7f59c0 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "8f036c173fa53997c9a3366394ae0722143f5859b7a5ead8b49fa6b4aa7f59c0", kill_on_drop: false }` [INFO] [stderr] Compiling core_collections v0.3.20170409 [INFO] [stderr] error: failed to run custom build command for `core_collections v0.3.20170409` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `/opt/rustwide/target/debug/build/core_collections-1c01d3be017e67f9/build-script-build` (exit code: 101) [INFO] [stderr] --- stderr [INFO] [stderr] thread 'main' panicked at 'Unknown compiler version, upgrade core_collections?', /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/core_collections-0.3.20170409/build.rs:48:69 [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x561112dc0780 - std::backtrace_rs::backtrace::libunwind::trace::h448c56741b6011d3 [INFO] [stderr] at /rustc/3e22d1f9053c0fc87629b3c6d5d9567856368e5d/library/std/src/../../backtrace/src/backtrace/libunwind.rs:100:5 [INFO] [stderr] 1: 0x561112dc0780 - std::backtrace_rs::backtrace::trace_unsynchronized::h2d26397c5720fdbb [INFO] [stderr] at /rustc/3e22d1f9053c0fc87629b3c6d5d9567856368e5d/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stderr] 2: 0x561112dc0780 - std::sys_common::backtrace::_print_fmt::h720a2f61f75b9f58 [INFO] [stderr] at /rustc/3e22d1f9053c0fc87629b3c6d5d9567856368e5d/library/std/src/sys_common/backtrace.rs:67:5 [INFO] [stderr] 3: 0x561112dc0780 - ::fmt::h8d62bbfda6d5c836 [INFO] [stderr] at /rustc/3e22d1f9053c0fc87629b3c6d5d9567856368e5d/library/std/src/sys_common/backtrace.rs:46:22 [INFO] [stderr] 4: 0x561112ddd70c - core::fmt::write::h1857a60b204f1b6a [INFO] [stderr] at /rustc/3e22d1f9053c0fc87629b3c6d5d9567856368e5d/library/core/src/fmt/mod.rs:1078:17 [INFO] [stderr] 5: 0x561112dbdc02 - std::io::Write::write_fmt::h16a9fe7680ac245c [INFO] [stderr] at /rustc/3e22d1f9053c0fc87629b3c6d5d9567856368e5d/library/std/src/io/mod.rs:1516:15 [INFO] [stderr] 6: 0x561112dc2a65 - std::sys_common::backtrace::_print::h9ba51a6db618de7d [INFO] [stderr] at /rustc/3e22d1f9053c0fc87629b3c6d5d9567856368e5d/library/std/src/sys_common/backtrace.rs:49:5 [INFO] [stderr] 7: 0x561112dc2a65 - std::sys_common::backtrace::print::h5f20e41c85e91716 [INFO] [stderr] at /rustc/3e22d1f9053c0fc87629b3c6d5d9567856368e5d/library/std/src/sys_common/backtrace.rs:36:9 [INFO] [stderr] 8: 0x561112dc2a65 - std::panicking::default_hook::{{closure}}::h5b7294ca19e8edab [INFO] [stderr] at /rustc/3e22d1f9053c0fc87629b3c6d5d9567856368e5d/library/std/src/panicking.rs:208:50 [INFO] [stderr] 9: 0x561112dc25ba - std::panicking::default_hook::hb3948d1f74b6ff4c [INFO] [stderr] at /rustc/3e22d1f9053c0fc87629b3c6d5d9567856368e5d/library/std/src/panicking.rs:225:9 [INFO] [stderr] 10: 0x561112dc3201 - std::panicking::rust_panic_with_hook::h55d23fef0ad751bc [INFO] [stderr] at /rustc/3e22d1f9053c0fc87629b3c6d5d9567856368e5d/library/std/src/panicking.rs:591:17 [INFO] [stderr] 11: 0x561112dc2d47 - std::panicking::begin_panic_handler::{{closure}}::h56ae74c6dea6e141 [INFO] [stderr] at /rustc/3e22d1f9053c0fc87629b3c6d5d9567856368e5d/library/std/src/panicking.rs:497:13 [INFO] [stderr] 12: 0x561112dc0c1c - std::sys_common::backtrace::__rust_end_short_backtrace::h3c4721f56689fae4 [INFO] [stderr] at /rustc/3e22d1f9053c0fc87629b3c6d5d9567856368e5d/library/std/src/sys_common/backtrace.rs:141:18 [INFO] [stderr] 13: 0x561112dc2ca9 - rust_begin_unwind [INFO] [stderr] at /rustc/3e22d1f9053c0fc87629b3c6d5d9567856368e5d/library/std/src/panicking.rs:493:5 [INFO] [stderr] 14: 0x561112ddcab1 - core::panicking::panic_fmt::hb15d6f55e8472f62 [INFO] [stderr] at /rustc/3e22d1f9053c0fc87629b3c6d5d9567856368e5d/library/core/src/panicking.rs:92:14 [INFO] [stderr] 15: 0x561112ddc843 - core::option::expect_failed::h6bc6a05976f4cb88 [INFO] [stderr] at /rustc/3e22d1f9053c0fc87629b3c6d5d9567856368e5d/library/core/src/option.rs:1260:5 [INFO] [stderr] 16: 0x561112d8dfd1 - core::option::Option::expect::h6c3013cefd09680a [INFO] [stderr] at /rustc/3e22d1f9053c0fc87629b3c6d5d9567856368e5d/library/core/src/option.rs:349:21 [INFO] [stderr] 17: 0x561112d8c0b2 - build_script_build::main::h6ba1950740b857b0 [INFO] [stderr] at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/core_collections-0.3.20170409/build.rs:48:4 [INFO] [stderr] 18: 0x561112d9016b - core::ops::function::FnOnce::call_once::h47251e695f81908a [INFO] [stderr] at /rustc/3e22d1f9053c0fc87629b3c6d5d9567856368e5d/library/core/src/ops/function.rs:227:5 [INFO] [stderr] 19: 0x561112d8de1e - std::sys_common::backtrace::__rust_begin_short_backtrace::hd0eb2ddf83c5c1cc [INFO] [stderr] at /rustc/3e22d1f9053c0fc87629b3c6d5d9567856368e5d/library/std/src/sys_common/backtrace.rs:125:18 [INFO] [stderr] 20: 0x561112d90611 - std::rt::lang_start::{{closure}}::h953f052f769e10f8 [INFO] [stderr] at /rustc/3e22d1f9053c0fc87629b3c6d5d9567856368e5d/library/std/src/rt.rs:66:18 [INFO] [stderr] 21: 0x561112dc3627 - core::ops::function::impls:: for &F>::call_once::h3f3ba5d1e0ce8d49 [INFO] [stderr] at /rustc/3e22d1f9053c0fc87629b3c6d5d9567856368e5d/library/core/src/ops/function.rs:259:13 [INFO] [stderr] 22: 0x561112dc3627 - std::panicking::try::do_call::hd7a374fc87b951e7 [INFO] [stderr] at /rustc/3e22d1f9053c0fc87629b3c6d5d9567856368e5d/library/std/src/panicking.rs:379:40 [INFO] [stderr] 23: 0x561112dc3627 - std::panicking::try::h068087b173f80a49 [INFO] [stderr] at /rustc/3e22d1f9053c0fc87629b3c6d5d9567856368e5d/library/std/src/panicking.rs:343:19 [INFO] [stderr] 24: 0x561112dc3627 - std::panic::catch_unwind::h1f8259807e825279 [INFO] [stderr] at /rustc/3e22d1f9053c0fc87629b3c6d5d9567856368e5d/library/std/src/panic.rs:396:14 [INFO] [stderr] 25: 0x561112dc3627 - std::rt::lang_start_internal::h8ff82302dd620b52 [INFO] [stderr] at /rustc/3e22d1f9053c0fc87629b3c6d5d9567856368e5d/library/std/src/rt.rs:51:25 [INFO] [stderr] 26: 0x561112d905e7 - std::rt::lang_start::h9af7dfb718a6f953 [INFO] [stderr] at /rustc/3e22d1f9053c0fc87629b3c6d5d9567856368e5d/library/std/src/rt.rs:65:5 [INFO] [stderr] 27: 0x561112d8c99a - main [INFO] [stderr] 28: 0x7f841443a0b3 - __libc_start_main [INFO] [stderr] 29: 0x561112d860ae - _start [INFO] [stderr] 30: 0x0 - [INFO] running `Command { std: "docker" "inspect" "8f036c173fa53997c9a3366394ae0722143f5859b7a5ead8b49fa6b4aa7f59c0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8f036c173fa53997c9a3366394ae0722143f5859b7a5ead8b49fa6b4aa7f59c0", kill_on_drop: false }` [INFO] [stdout] 8f036c173fa53997c9a3366394ae0722143f5859b7a5ead8b49fa6b4aa7f59c0