[INFO] crate core_collections 0.3.20170409 is already in cache [INFO] checking core_collections-0.3.20170409 against try#e922e6444795ab795fab1943288aee3d543699b8 for pr-66852 [INFO] extracting crate core_collections 0.3.20170409 into /workspace/builds/worker-4/source [INFO] validating manifest of crates.io crate core_collections 0.3.20170409 on toolchain e922e6444795ab795fab1943288aee3d543699b8 [INFO] running `"/workspace/cargo-home/bin/cargo" "+e922e6444795ab795fab1943288aee3d543699b8" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking crates.io crate core_collections 0.3.20170409 [INFO] finished tweaking crates.io crate core_collections 0.3.20170409 [INFO] tweaked toml for crates.io crate core_collections 0.3.20170409 written to /workspace/builds/worker-4/source/Cargo.toml [INFO] running `"/workspace/cargo-home/bin/cargo" "+e922e6444795ab795fab1943288aee3d543699b8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/workspace/cargo-home/bin/cargo" "+e922e6444795ab795fab1943288aee3d543699b8" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+e922e6444795ab795fab1943288aee3d543699b8" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] 83c4bd8e3e9a9ce9baca6abeb3460aba165881927560f2df7e6f25e18ffa3ce3 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `"docker" "start" "-a" "83c4bd8e3e9a9ce9baca6abeb3460aba165881927560f2df7e6f25e18ffa3ce3"` [INFO] [stderr] Compiling core_collections v0.3.20170409 (/opt/rustwide/workdir) [INFO] [stderr] error: failed to run custom build command for `core_collections v0.3.20170409 (/opt/rustwide/workdir)` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `/opt/rustwide/target/debug/build/core_collections-d3724c806d0af831/build-script-build` (exit code: 101) [INFO] [stderr] --- stderr [INFO] [stderr] thread 'main' panicked at 'Unknown compiler version, upgrade core_collections?', src/libcore/option.rs:1188:5 [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x56120920e8c4 - backtrace::backtrace::libunwind::trace::h9f1d8738cf6f142e [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.40/src/backtrace/libunwind.rs:88 [INFO] [stderr] 1: 0x56120920e8c4 - backtrace::backtrace::trace_unsynchronized::h36d929b1b2ff5781 [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.40/src/backtrace/mod.rs:66 [INFO] [stderr] 2: 0x56120920e8c4 - std::sys_common::backtrace::_print_fmt::hacbc333e6aeece5a [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:84 [INFO] [stderr] 3: 0x56120920e8c4 - ::fmt::hdf9238626066ab75 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:61 [INFO] [stderr] 4: 0x56120922bb7c - core::fmt::write::h5e029752b22165fa [INFO] [stderr] at src/libcore/fmt/mod.rs:1024 [INFO] [stderr] 5: 0x56120920c147 - std::io::Write::write_fmt::hf6191160ed350e3f [INFO] [stderr] at src/libstd/io/mod.rs:1428 [INFO] [stderr] 6: 0x5612092108ce - std::sys_common::backtrace::_print::h6a8189d6f64e43ee [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:65 [INFO] [stderr] 7: 0x5612092108ce - std::sys_common::backtrace::print::h8fb1dcbcd98a6ec2 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:50 [INFO] [stderr] 8: 0x5612092108ce - std::panicking::default_hook::{{closure}}::h85d7bb172edc868f [INFO] [stderr] at src/libstd/panicking.rs:193 [INFO] [stderr] 9: 0x5612092105c1 - std::panicking::default_hook::h4c7e437cd4a16e76 [INFO] [stderr] at src/libstd/panicking.rs:210 [INFO] [stderr] 10: 0x561209210efb - std::panicking::rust_panic_with_hook::h8647154d80cbed98 [INFO] [stderr] at src/libstd/panicking.rs:471 [INFO] [stderr] 11: 0x561209210aae - rust_begin_unwind [INFO] [stderr] at src/libstd/panicking.rs:375 [INFO] [stderr] 12: 0x56120922936e - core::panicking::panic_fmt::he443c7a6ed279995 [INFO] [stderr] at src/libcore/panicking.rs:82 [INFO] [stderr] 13: 0x5612092293d7 - core::option::expect_failed::he34a179a76a4172d [INFO] [stderr] at src/libcore/option.rs:1188 [INFO] [stderr] 14: 0x5612091e71fa - core::option::Option::expect::h5efbcb6f699b5734 [INFO] [stderr] at /rustc/e922e6444795ab795fab1943288aee3d543699b8/src/libcore/option.rs:348 [INFO] [stderr] 15: 0x5612091e4efd - build_script_build::main::h5027979384287d8b [INFO] [stderr] at /opt/rustwide/workdir/build.rs:48 [INFO] [stderr] 16: 0x5612091e68d0 - std::rt::lang_start::{{closure}}::h76ee6d90f2c30fd1 [INFO] [stderr] at /rustc/e922e6444795ab795fab1943288aee3d543699b8/src/libstd/rt.rs:67 [INFO] [stderr] 17: 0x561209210993 - std::rt::lang_start_internal::{{closure}}::h537a2d77f0f9eb2b [INFO] [stderr] at src/libstd/rt.rs:52 [INFO] [stderr] 18: 0x561209210993 - std::panicking::try::do_call::hac85bb9436248e0f [INFO] [stderr] at src/libstd/panicking.rs:292 [INFO] [stderr] 19: 0x561209216d3a - __rust_maybe_catch_panic [INFO] [stderr] at src/libpanic_unwind/lib.rs:78 [INFO] [stderr] 20: 0x561209211390 - std::panicking::try::hfda737be6bc9b3a3 [INFO] [stderr] at src/libstd/panicking.rs:270 [INFO] [stderr] 21: 0x561209211390 - std::panic::catch_unwind::hb168c94334b21b4b [INFO] [stderr] at src/libstd/panic.rs:394 [INFO] [stderr] 22: 0x561209211390 - std::rt::lang_start_internal::h76b1fe1020874f18 [INFO] [stderr] at src/libstd/rt.rs:51 [INFO] [stderr] 23: 0x5612091e68a9 - std::rt::lang_start::h0612c5d28413c7c9 [INFO] [stderr] at /rustc/e922e6444795ab795fab1943288aee3d543699b8/src/libstd/rt.rs:67 [INFO] [stderr] 24: 0x5612091e56ea - main [INFO] [stderr] 25: 0x7f41734a1b97 - __libc_start_main [INFO] [stderr] 26: 0x5612091ded2a - _start [INFO] [stderr] 27: 0x0 - [INFO] [stderr] [INFO] running `"docker" "inspect" "83c4bd8e3e9a9ce9baca6abeb3460aba165881927560f2df7e6f25e18ffa3ce3"` [INFO] running `"docker" "rm" "-f" "83c4bd8e3e9a9ce9baca6abeb3460aba165881927560f2df7e6f25e18ffa3ce3"` [INFO] [stdout] 83c4bd8e3e9a9ce9baca6abeb3460aba165881927560f2df7e6f25e18ffa3ce3