[INFO] fetching crate core_rustc-serialize 0.3.20-v0.3.19patch1... [INFO] checking core_rustc-serialize-0.3.20-v0.3.19patch1 against master#6526e5c772f2da07db745c94ca6bb0a591a39ba4 for pr-80920 [INFO] extracting crate core_rustc-serialize 0.3.20-v0.3.19patch1 into /workspace/builds/worker-1/source [INFO] validating manifest of crates.io crate core_rustc-serialize 0.3.20-v0.3.19patch1 on toolchain 6526e5c772f2da07db745c94ca6bb0a591a39ba4 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "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-1/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] ec488ad542dcce32b17b76a532f680cdcfa7bd84bdac23a179e3353c8f1bdb8c [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" "ec488ad542dcce32b17b76a532f680cdcfa7bd84bdac23a179e3353c8f1bdb8c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ec488ad542dcce32b17b76a532f680cdcfa7bd84bdac23a179e3353c8f1bdb8c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ec488ad542dcce32b17b76a532f680cdcfa7bd84bdac23a179e3353c8f1bdb8c", kill_on_drop: false }` [INFO] [stdout] ec488ad542dcce32b17b76a532f680cdcfa7bd84bdac23a179e3353c8f1bdb8c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] d11db3e87ee06b2b9c6d584ab7b2f15faa35201894c91873e4357d946186a23c [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" "d11db3e87ee06b2b9c6d584ab7b2f15faa35201894c91873e4357d946186a23c", kill_on_drop: false }` [INFO] [stderr] Compiling semver v0.1.20 [INFO] [stderr] Checking rand v0.4.6 [INFO] [stderr] Compiling rustc_version v0.1.7 [INFO] [stderr] Compiling core_collections v0.3.20170409 [INFO] [stderr] Checking rand v0.3.23 [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: 0x55a1564425a7 - std::backtrace_rs::backtrace::libunwind::trace::h8bc78f7bc1f75bdb [INFO] [stderr] at /rustc/6526e5c772f2da07db745c94ca6bb0a591a39ba4/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5 [INFO] [stderr] 1: 0x55a1564425a7 - std::backtrace_rs::backtrace::trace_unsynchronized::ha4c961c9576f95ba [INFO] [stderr] at /rustc/6526e5c772f2da07db745c94ca6bb0a591a39ba4/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stderr] 2: 0x55a1564425a7 - std::sys_common::backtrace::_print_fmt::hc20cfdc233d6eb02 [INFO] [stderr] at /rustc/6526e5c772f2da07db745c94ca6bb0a591a39ba4/library/std/src/sys_common/backtrace.rs:67:5 [INFO] [stderr] 3: 0x55a1564425a7 - ::fmt::h04bea14549780a0f [INFO] [stderr] at /rustc/6526e5c772f2da07db745c94ca6bb0a591a39ba4/library/std/src/sys_common/backtrace.rs:46:22 [INFO] [stderr] 4: 0x55a15645caec - core::fmt::write::h3868db8542c90941 [INFO] [stderr] at /rustc/6526e5c772f2da07db745c94ca6bb0a591a39ba4/library/core/src/fmt/mod.rs:1078:17 [INFO] [stderr] 5: 0x55a15643f922 - std::io::Write::write_fmt::h55dd75636eef6a5c [INFO] [stderr] at /rustc/6526e5c772f2da07db745c94ca6bb0a591a39ba4/library/std/src/io/mod.rs:1518:15 [INFO] [stderr] 6: 0x55a1564442f5 - std::sys_common::backtrace::_print::h6439e8525077c7da [INFO] [stderr] at /rustc/6526e5c772f2da07db745c94ca6bb0a591a39ba4/library/std/src/sys_common/backtrace.rs:49:5 [INFO] [stderr] 7: 0x55a1564442f5 - std::sys_common::backtrace::print::h02b685f728ce3931 [INFO] [stderr] at /rustc/6526e5c772f2da07db745c94ca6bb0a591a39ba4/library/std/src/sys_common/backtrace.rs:36:9 [INFO] [stderr] 8: 0x55a1564442f5 - std::panicking::default_hook::{{closure}}::h7c29625065fafae1 [INFO] [stderr] at /rustc/6526e5c772f2da07db745c94ca6bb0a591a39ba4/library/std/src/panicking.rs:208:50 [INFO] [stderr] 9: 0x55a156443e53 - std::panicking::default_hook::hba441710bb71f4d5 [INFO] [stderr] at /rustc/6526e5c772f2da07db745c94ca6bb0a591a39ba4/library/std/src/panicking.rs:225:9 [INFO] [stderr] 10: 0x55a156444a91 - std::panicking::rust_panic_with_hook::ha936eb00e51bc4d9 [INFO] [stderr] at /rustc/6526e5c772f2da07db745c94ca6bb0a591a39ba4/library/std/src/panicking.rs:591:17 [INFO] [stderr] 11: 0x55a1564445d7 - std::panicking::begin_panic_handler::{{closure}}::hcd15140e0238536e [INFO] [stderr] at /rustc/6526e5c772f2da07db745c94ca6bb0a591a39ba4/library/std/src/panicking.rs:497:13 [INFO] [stderr] 12: 0x55a156442a6c - std::sys_common::backtrace::__rust_end_short_backtrace::hb13a021bb64823a1 [INFO] [stderr] at /rustc/6526e5c772f2da07db745c94ca6bb0a591a39ba4/library/std/src/sys_common/backtrace.rs:141:18 [INFO] [stderr] 13: 0x55a156444539 - rust_begin_unwind [INFO] [stderr] at /rustc/6526e5c772f2da07db745c94ca6bb0a591a39ba4/library/std/src/panicking.rs:493:5 [INFO] [stderr] 14: 0x55a15645bec1 - core::panicking::panic_fmt::h20225113c4a2f8fd [INFO] [stderr] at /rustc/6526e5c772f2da07db745c94ca6bb0a591a39ba4/library/core/src/panicking.rs:92:14 [INFO] [stderr] 15: 0x55a15645bc53 - core::option::expect_failed::h8be1ca96ca0d69ca [INFO] [stderr] at /rustc/6526e5c772f2da07db745c94ca6bb0a591a39ba4/library/core/src/option.rs:1258:5 [INFO] [stderr] 16: 0x55a156409f11 - core::option::Option::expect::h7c1d504cf2d80fc3 [INFO] [stderr] at /rustc/6526e5c772f2da07db745c94ca6bb0a591a39ba4/library/core/src/option.rs:349:21 [INFO] [stderr] 17: 0x55a1564080d2 - 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: 0x55a15640c55b - core::ops::function::FnOnce::call_once::hcca5ecc144d80d43 [INFO] [stderr] at /rustc/6526e5c772f2da07db745c94ca6bb0a591a39ba4/library/core/src/ops/function.rs:227:5 [INFO] [stderr] 19: 0x55a15640c19e - std::sys_common::backtrace::__rust_begin_short_backtrace::h00d4698e713877ab [INFO] [stderr] at /rustc/6526e5c772f2da07db745c94ca6bb0a591a39ba4/library/std/src/sys_common/backtrace.rs:125:18 [INFO] [stderr] 20: 0x55a15640c241 - std::rt::lang_start::{{closure}}::h77224d87f6eb8fc9 [INFO] [stderr] at /rustc/6526e5c772f2da07db745c94ca6bb0a591a39ba4/library/std/src/rt.rs:66:18 [INFO] [stderr] 21: 0x55a156444eb7 - core::ops::function::impls:: for &F>::call_once::h7c92107c3c98a949 [INFO] [stderr] at /rustc/6526e5c772f2da07db745c94ca6bb0a591a39ba4/library/core/src/ops/function.rs:259:13 [INFO] [stderr] 22: 0x55a156444eb7 - std::panicking::try::do_call::h7454c57e8fbf0cc1 [INFO] [stderr] at /rustc/6526e5c772f2da07db745c94ca6bb0a591a39ba4/library/std/src/panicking.rs:379:40 [INFO] [stderr] 23: 0x55a156444eb7 - std::panicking::try::he71cdc15ed83b5ec [INFO] [stderr] at /rustc/6526e5c772f2da07db745c94ca6bb0a591a39ba4/library/std/src/panicking.rs:343:19 [INFO] [stderr] 24: 0x55a156444eb7 - std::panic::catch_unwind::hfc08ddb043e6e18c [INFO] [stderr] at /rustc/6526e5c772f2da07db745c94ca6bb0a591a39ba4/library/std/src/panic.rs:396:14 [INFO] [stderr] 25: 0x55a156444eb7 - std::rt::lang_start_internal::he4958117ec6901fd [INFO] [stderr] at /rustc/6526e5c772f2da07db745c94ca6bb0a591a39ba4/library/std/src/rt.rs:51:25 [INFO] [stderr] 26: 0x55a15640c217 - std::rt::lang_start::hb34d4180877752b7 [INFO] [stderr] at /rustc/6526e5c772f2da07db745c94ca6bb0a591a39ba4/library/std/src/rt.rs:65:5 [INFO] [stderr] 27: 0x55a156408a2a - main [INFO] [stderr] 28: 0x7f37afaec0b3 - __libc_start_main [INFO] [stderr] 29: 0x55a1564020ae - _start [INFO] [stderr] 30: 0x0 - [INFO] running `Command { std: "docker" "inspect" "d11db3e87ee06b2b9c6d584ab7b2f15faa35201894c91873e4357d946186a23c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d11db3e87ee06b2b9c6d584ab7b2f15faa35201894c91873e4357d946186a23c", kill_on_drop: false }` [INFO] [stdout] d11db3e87ee06b2b9c6d584ab7b2f15faa35201894c91873e4357d946186a23c