[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#5e3f1b148db5bfa27fee52464ae1f5d34c49d77b for pr-75502 [INFO] extracting crate core_rustc-serialize 0.3.20-v0.3.19patch1 into /workspace/builds/worker-7/source [INFO] validating manifest of crates.io crate core_rustc-serialize 0.3.20-v0.3.19patch1 on toolchain 5e3f1b148db5bfa27fee52464ae1f5d34c49d77b [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "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-7/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "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-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 75b5c82ad7f3990085608ee5e4138d4a0f06bed20e9036b088fcf9c383b849c1 [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" "75b5c82ad7f3990085608ee5e4138d4a0f06bed20e9036b088fcf9c383b849c1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "75b5c82ad7f3990085608ee5e4138d4a0f06bed20e9036b088fcf9c383b849c1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "75b5c82ad7f3990085608ee5e4138d4a0f06bed20e9036b088fcf9c383b849c1", kill_on_drop: false }` [INFO] [stdout] 75b5c82ad7f3990085608ee5e4138d4a0f06bed20e9036b088fcf9c383b849c1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] a90e8c824ab6c92c7c507a341fd7af4b3d5fe6041a26e80d1639f67aa2d98c8a [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" "a90e8c824ab6c92c7c507a341fd7af4b3d5fe6041a26e80d1639f67aa2d98c8a", 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-f8f28230d991640d/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: 0x55d54a5be020 - std::backtrace_rs::backtrace::libunwind::trace::ha1eabb142084ea37 [INFO] [stderr] at /rustc/5e3f1b148db5bfa27fee52464ae1f5d34c49d77b/library/std/src/../../backtrace/src/backtrace/libunwind.rs:96 [INFO] [stderr] 1: 0x55d54a5be020 - std::backtrace_rs::backtrace::trace_unsynchronized::hbb8825661d997281 [INFO] [stderr] at /rustc/5e3f1b148db5bfa27fee52464ae1f5d34c49d77b/library/std/src/../../backtrace/src/backtrace/mod.rs:66 [INFO] [stderr] 2: 0x55d54a5be020 - std::sys_common::backtrace::_print_fmt::h26d850e2f7183914 [INFO] [stderr] at /rustc/5e3f1b148db5bfa27fee52464ae1f5d34c49d77b/library/std/src/sys_common/backtrace.rs:79 [INFO] [stderr] 3: 0x55d54a5be020 - ::fmt::h3834b06f68a2b012 [INFO] [stderr] at /rustc/5e3f1b148db5bfa27fee52464ae1f5d34c49d77b/library/std/src/sys_common/backtrace.rs:58 [INFO] [stderr] 4: 0x55d54a5db8cc - core::fmt::write::h3a043650ba7bf668 [INFO] [stderr] at /rustc/5e3f1b148db5bfa27fee52464ae1f5d34c49d77b/library/core/src/fmt/mod.rs:1117 [INFO] [stderr] 5: 0x55d54a5bb9e5 - std::io::Write::write_fmt::h9c0c8944a1898139 [INFO] [stderr] at /rustc/5e3f1b148db5bfa27fee52464ae1f5d34c49d77b/library/std/src/io/mod.rs:1510 [INFO] [stderr] 6: 0x55d54a5c01c0 - std::sys_common::backtrace::_print::h693c0c2cc41d4d10 [INFO] [stderr] at /rustc/5e3f1b148db5bfa27fee52464ae1f5d34c49d77b/library/std/src/sys_common/backtrace.rs:61 [INFO] [stderr] 7: 0x55d54a5c01c0 - std::sys_common::backtrace::print::h213be73e5670b8ea [INFO] [stderr] at /rustc/5e3f1b148db5bfa27fee52464ae1f5d34c49d77b/library/std/src/sys_common/backtrace.rs:48 [INFO] [stderr] 8: 0x55d54a5c01c0 - std::panicking::default_hook::{{closure}}::h2d49a3361cc4e7ea [INFO] [stderr] at /rustc/5e3f1b148db5bfa27fee52464ae1f5d34c49d77b/library/std/src/panicking.rs:200 [INFO] [stderr] 9: 0x55d54a5bff0c - std::panicking::default_hook::hd41fbdeba93207ba [INFO] [stderr] at /rustc/5e3f1b148db5bfa27fee52464ae1f5d34c49d77b/library/std/src/panicking.rs:219 [INFO] [stderr] 10: 0x55d54a5c0823 - std::panicking::rust_panic_with_hook::hcab398664b4bd473 [INFO] [stderr] at /rustc/5e3f1b148db5bfa27fee52464ae1f5d34c49d77b/library/std/src/panicking.rs:569 [INFO] [stderr] 11: 0x55d54a5c03f9 - std::panicking::begin_panic_handler::{{closure}}::h7512c6f2998ba93d [INFO] [stderr] at /rustc/5e3f1b148db5bfa27fee52464ae1f5d34c49d77b/library/std/src/panicking.rs:476 [INFO] [stderr] 12: 0x55d54a5be48c - std::sys_common::backtrace::__rust_end_short_backtrace::h1a25d7e7e1864d3d [INFO] [stderr] at /rustc/5e3f1b148db5bfa27fee52464ae1f5d34c49d77b/library/std/src/sys_common/backtrace.rs:153 [INFO] [stderr] 13: 0x55d54a5c03b9 - rust_begin_unwind [INFO] [stderr] at /rustc/5e3f1b148db5bfa27fee52464ae1f5d34c49d77b/library/std/src/panicking.rs:475 [INFO] [stderr] 14: 0x55d54a5dacd1 - core::panicking::panic_fmt::h019ad16a92ccd092 [INFO] [stderr] at /rustc/5e3f1b148db5bfa27fee52464ae1f5d34c49d77b/library/core/src/panicking.rs:85 [INFO] [stderr] 15: 0x55d54a5daa63 - core::option::expect_failed::he4d89f45e184f5ae [INFO] [stderr] at /rustc/5e3f1b148db5bfa27fee52464ae1f5d34c49d77b/library/core/src/option.rs:1266 [INFO] [stderr] 16: 0x55d54a58ba71 - core::option::Option::expect::hb57b3d2128583a91 [INFO] [stderr] at /rustc/5e3f1b148db5bfa27fee52464ae1f5d34c49d77b/library/core/src/option.rs:347 [INFO] [stderr] 17: 0x55d54a58a1b2 - build_script_build::main::h30eb0d70ea7d54b7 [INFO] [stderr] at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/core_collections-0.3.20170409/build.rs:48 [INFO] [stderr] 18: 0x55d54a58dd2b - core::ops::function::FnOnce::call_once::h55b5afab08e525e3 [INFO] [stderr] at /rustc/5e3f1b148db5bfa27fee52464ae1f5d34c49d77b/library/core/src/ops/function.rs:233 [INFO] [stderr] 19: 0x55d54a58b8fe - std::sys_common::backtrace::__rust_begin_short_backtrace::hf6aabf7d7cce43a1 [INFO] [stderr] at /rustc/5e3f1b148db5bfa27fee52464ae1f5d34c49d77b/library/std/src/sys_common/backtrace.rs:137 [INFO] [stderr] 20: 0x55d54a58e1a1 - std::rt::lang_start::{{closure}}::h17679edd747b890a [INFO] [stderr] at /rustc/5e3f1b148db5bfa27fee52464ae1f5d34c49d77b/library/std/src/rt.rs:66 [INFO] [stderr] 21: 0x55d54a5c0c32 - core::ops::function::impls:: for &F>::call_once::hde9814ae740a85dc [INFO] [stderr] at /rustc/5e3f1b148db5bfa27fee52464ae1f5d34c49d77b/library/core/src/ops/function.rs:265 [INFO] [stderr] 22: 0x55d54a5c0c32 - std::panicking::try::do_call::h3026bab8cd7540d7 [INFO] [stderr] at /rustc/5e3f1b148db5bfa27fee52464ae1f5d34c49d77b/library/std/src/panicking.rs:373 [INFO] [stderr] 23: 0x55d54a5c0c32 - std::panicking::try::h852bb5e5a66f7f84 [INFO] [stderr] at /rustc/5e3f1b148db5bfa27fee52464ae1f5d34c49d77b/library/std/src/panicking.rs:337 [INFO] [stderr] 24: 0x55d54a5c0c32 - std::panic::catch_unwind::hfeb0f3dddf7c6a72 [INFO] [stderr] at /rustc/5e3f1b148db5bfa27fee52464ae1f5d34c49d77b/library/std/src/panic.rs:394 [INFO] [stderr] 25: 0x55d54a5c0c32 - std::rt::lang_start_internal::h32f0ac6e87476559 [INFO] [stderr] at /rustc/5e3f1b148db5bfa27fee52464ae1f5d34c49d77b/library/std/src/rt.rs:51 [INFO] [stderr] 26: 0x55d54a58e177 - std::rt::lang_start::h429cfa9925366a55 [INFO] [stderr] at /rustc/5e3f1b148db5bfa27fee52464ae1f5d34c49d77b/library/std/src/rt.rs:65 [INFO] [stderr] 27: 0x55d54a58a9da - main [INFO] [stderr] 28: 0x7fdb54da90b3 - __libc_start_main [INFO] [stderr] 29: 0x55d54a5840ae - _start [INFO] [stderr] 30: 0x0 - [INFO] running `Command { std: "docker" "inspect" "a90e8c824ab6c92c7c507a341fd7af4b3d5fe6041a26e80d1639f67aa2d98c8a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a90e8c824ab6c92c7c507a341fd7af4b3d5fe6041a26e80d1639f67aa2d98c8a", kill_on_drop: false }` [INFO] [stdout] a90e8c824ab6c92c7c507a341fd7af4b3d5fe6041a26e80d1639f67aa2d98c8a