[INFO] cloning repository https://github.com/wraithan/prime-challenge [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wraithan/prime-challenge" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwraithan%2Fprime-challenge", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwraithan%2Fprime-challenge'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 325a0214cc7cc7a7f69db60e58e381f350a90bf5 [INFO] checking wraithan/prime-challenge against master#f25e92bd42b14e45440c0a30a4ed751ea502f430 for pr-127481 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwraithan%2Fprime-challenge" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/wraithan/prime-challenge on toolchain f25e92bd42b14e45440c0a30a4ed751ea502f430 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f25e92bd42b14e45440c0a30a4ed751ea502f430" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/wraithan/prime-challenge [INFO] finished tweaking git repo https://github.com/wraithan/prime-challenge [INFO] tweaked toml for git repo https://github.com/wraithan/prime-challenge written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/wraithan/prime-challenge already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f25e92bd42b14e45440c0a30a4ed751ea502f430" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Updating crates.io index [INFO] [stderr] Blocking waiting for file lock on package cache [ERROR] error running command: no output for 300 seconds [ERROR] this task or one of its parent failed! [ERROR] no output for 300 seconds [ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace. [INFO] checking wraithan/prime-challenge against try#81417ccfba1b50f064bed768ddab670f5bbfdcfe for pr-127481 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwraithan%2Fprime-challenge" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/wraithan/prime-challenge on toolchain 81417ccfba1b50f064bed768ddab670f5bbfdcfe [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+81417ccfba1b50f064bed768ddab670f5bbfdcfe" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/wraithan/prime-challenge [INFO] finished tweaking git repo https://github.com/wraithan/prime-challenge [INFO] tweaked toml for git repo https://github.com/wraithan/prime-challenge written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/wraithan/prime-challenge already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+81417ccfba1b50f064bed768ddab670f5bbfdcfe" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [ERROR] error running command: no output for 300 seconds [INFO] checking wraithan/prime-challenge against try#81417ccfba1b50f064bed768ddab670f5bbfdcfe for pr-127481 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwraithan%2Fprime-challenge" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/wraithan/prime-challenge on toolchain 81417ccfba1b50f064bed768ddab670f5bbfdcfe [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+81417ccfba1b50f064bed768ddab670f5bbfdcfe" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/wraithan/prime-challenge [INFO] finished tweaking git repo https://github.com/wraithan/prime-challenge [INFO] tweaked toml for git repo https://github.com/wraithan/prime-challenge written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/wraithan/prime-challenge already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+81417ccfba1b50f064bed768ddab670f5bbfdcfe" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [ERROR] error running command: no output for 300 seconds [INFO] checking wraithan/prime-challenge against try#81417ccfba1b50f064bed768ddab670f5bbfdcfe for pr-127481 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwraithan%2Fprime-challenge" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/wraithan/prime-challenge on toolchain 81417ccfba1b50f064bed768ddab670f5bbfdcfe [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+81417ccfba1b50f064bed768ddab670f5bbfdcfe" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/wraithan/prime-challenge [INFO] finished tweaking git repo https://github.com/wraithan/prime-challenge [INFO] tweaked toml for git repo https://github.com/wraithan/prime-challenge written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/wraithan/prime-challenge already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+81417ccfba1b50f064bed768ddab670f5bbfdcfe" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded primal-estimate v0.2.1 [INFO] [stderr] Downloaded rustc_version v0.1.4 [INFO] [stderr] Downloaded primal-check v0.2.2 [INFO] [stderr] Downloaded primal-bit v0.2.3 [INFO] [stderr] Downloaded primal v0.2.3 [INFO] [stderr] Downloaded hamming v0.1.3 [INFO] [stderr] Downloaded libc v0.2.2 [INFO] [stderr] Downloaded num v0.1.27 [INFO] [stderr] Downloaded primal-sieve v0.2.4 [INFO] [stderr] Downloaded rand v0.3.12 [INFO] [stderr] Downloaded scoped_threadpool v0.1.6 [INFO] [stderr] Downloaded winapi v0.2.5 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+81417ccfba1b50f064bed768ddab670f5bbfdcfe" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 9bba8a9b8ae660166c068aac6a0548669195088819ffdddf214172cdc1d4d79f [INFO] running `Command { std: "docker" "start" "-a" "9bba8a9b8ae660166c068aac6a0548669195088819ffdddf214172cdc1d4d79f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "9bba8a9b8ae660166c068aac6a0548669195088819ffdddf214172cdc1d4d79f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9bba8a9b8ae660166c068aac6a0548669195088819ffdddf214172cdc1d4d79f", kill_on_drop: false }` [INFO] [stdout] 9bba8a9b8ae660166c068aac6a0548669195088819ffdddf214172cdc1d4d79f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "RUSTDOCFLAGS=--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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+81417ccfba1b50f064bed768ddab670f5bbfdcfe" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] a7d76a8f2374fda41e0213ba627b5bbaa57a0a0c0230062af2cb104b3ee3427d [INFO] running `Command { std: "docker" "start" "-a" "a7d76a8f2374fda41e0213ba627b5bbaa57a0a0c0230062af2cb104b3ee3427d", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] Compiling winapi-build v0.1.1 [INFO] [stderr] Checking winapi v0.2.5 [INFO] [stderr] Checking libc v0.2.2 [INFO] [stderr] Compiling semver v0.1.20 [INFO] [stderr] Checking rustc-serialize v0.3.16 [INFO] [stderr] Checking hamming v0.1.3 [INFO] [stderr] Checking primal-estimate v0.2.1 [INFO] [stdout] error[E0642]: patterns aren't allowed in functions without bodies [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/rustc-serialize-0.3.16/src/serialize.rs:145:45 [INFO] [stdout] | [INFO] [stdout] 145 | ... &f_name: &str, [INFO] [stdout] | ^^^^^^^ pattern not allowed in function without body [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking primal-bit v0.2.3 [INFO] [stderr] Compiling advapi32-sys v0.1.2 [INFO] [stderr] Compiling kernel32-sys v0.2.1 [INFO] [stdout] error[E0310]: the parameter type `T` may not live long enough [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/rustc-serialize-0.3.16/src/serialize.rs:452:5 [INFO] [stdout] | [INFO] [stdout] 452 | fn decode(d: &mut D) -> Result, D::Error> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | the parameter type `T` must be valid for the static lifetime... [INFO] [stdout] | ...so that the type `T` will meet its required lifetime bounds... [INFO] [stdout] | [INFO] [stdout] note: ...that is required by this bound [INFO] [stdout] --> /rustc/81417ccfba1b50f064bed768ddab670f5bbfdcfe/library/alloc/src/borrow.rs:180:30 [INFO] [stdout] help: consider adding an explicit lifetime bound [INFO] [stdout] | [INFO] [stdout] 448 | impl<'a, T: ?Sized + 'static> Decodable for Cow<'a, T> [INFO] [stdout] | +++++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking primal-sieve v0.2.4 [INFO] [stderr] Compiling rustc_version v0.1.4 [INFO] [stderr] Checking time v0.1.34 [INFO] [stderr] Checking rand v0.3.12 [INFO] [stderr] Compiling scoped_threadpool v0.1.6 [INFO] [stderr] error: failed to run custom build command for `scoped_threadpool v0.1.6` [INFO] [stderr] note: To improve backtraces for build dependencies, set the CARGO_PROFILE_DEV_BUILD_OVERRIDE_DEBUG=true environment variable to enable debug information generation. [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `/opt/rustwide/target/debug/build/scoped_threadpool-38de02fe4803ca5c/build-script-build` (exit status: 101) [INFO] [stderr] --- stderr [INFO] [stderr] thread 'main' panicked at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/rustc_version-0.1.4/src/lib.rs:115:5: [INFO] [stderr] unexpected -vV format [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x55757959c515 - std::backtrace_rs::backtrace::libunwind::trace::h47fc29e5166a0210 [INFO] [stderr] at /rustc/81417ccfba1b50f064bed768ddab670f5bbfdcfe/library/std/src/../../backtrace/src/backtrace/libunwind.rs:116:5 [INFO] [stderr] 1: 0x55757959c515 - std::backtrace_rs::backtrace::trace_unsynchronized::h4235a8fad8da48f5 [INFO] [stderr] at /rustc/81417ccfba1b50f064bed768ddab670f5bbfdcfe/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stderr] 2: 0x55757959c515 - std::sys::backtrace::_print_fmt::hd72e2ddb1749aeb6 [INFO] [stderr] at /rustc/81417ccfba1b50f064bed768ddab670f5bbfdcfe/library/std/src/sys/backtrace.rs:68:5 [INFO] [stderr] 3: 0x55757959c515 - ::fmt::hbe3be82c3e742eb9 [INFO] [stderr] at /rustc/81417ccfba1b50f064bed768ddab670f5bbfdcfe/library/std/src/sys/backtrace.rs:44:22 [INFO] [stderr] 4: 0x5575795bcb5b - core::fmt::rt::Argument::fmt::h81fb7b2fb951d796 [INFO] [stderr] at /rustc/81417ccfba1b50f064bed768ddab670f5bbfdcfe/library/core/src/fmt/rt.rs:173:76 [INFO] [stderr] 5: 0x5575795bcb5b - core::fmt::write::hbed6bf8ba4698c6d [INFO] [stderr] at /rustc/81417ccfba1b50f064bed768ddab670f5bbfdcfe/library/core/src/fmt/mod.rs:1182:21 [INFO] [stderr] 6: 0x557579599edf - std::io::Write::write_fmt::h39369ea94a5e357a [INFO] [stderr] at /rustc/81417ccfba1b50f064bed768ddab670f5bbfdcfe/library/std/src/io/mod.rs:1835:15 [INFO] [stderr] 7: 0x55757959c2ee - std::sys::backtrace::_print::h010a6a914ed5b315 [INFO] [stderr] at /rustc/81417ccfba1b50f064bed768ddab670f5bbfdcfe/library/std/src/sys/backtrace.rs:47:5 [INFO] [stderr] 8: 0x55757959c2ee - std::sys::backtrace::print::h8d6ec550f96f97e9 [INFO] [stderr] at /rustc/81417ccfba1b50f064bed768ddab670f5bbfdcfe/library/std/src/sys/backtrace.rs:34:9 [INFO] [stderr] 9: 0x55757959d599 - std::panicking::default_hook::{{closure}}::hdad008d283fb0e1a [INFO] [stderr] 10: 0x55757959d33c - std::panicking::default_hook::ha5ea5beab991c168 [INFO] [stderr] at /rustc/81417ccfba1b50f064bed768ddab670f5bbfdcfe/library/std/src/panicking.rs:292:9 [INFO] [stderr] 11: 0x55757959db71 - std::panicking::rust_panic_with_hook::h4ffa409895c04d1b [INFO] [stderr] at /rustc/81417ccfba1b50f064bed768ddab670f5bbfdcfe/library/std/src/panicking.rs:796:13 [INFO] [stderr] 12: 0x55757956ca2a - std::panicking::begin_panic::{{closure}}::hc623655094ae907f [INFO] [stderr] 13: 0x55757956914a - std::sys::backtrace::__rust_end_short_backtrace::h82dafc379679601b [INFO] [stderr] 14: 0x55757956c9db - std::panicking::begin_panic::h78dd4caac4278b82 [INFO] [stderr] 15: 0x55757956b88c - rustc_version::version_meta_for::h2a72e0f5cc34c3a3 [INFO] [stderr] 16: 0x55757956b62d - rustc_version::version_meta::h81d84e243dea6e54 [INFO] [stderr] 17: 0x55757956b2df - rustc_version::version::h88a75c24ad01d0b1 [INFO] [stderr] 18: 0x55757956c32a - rustc_version::version_matches::h24f49786c201ec41 [INFO] [stderr] 19: 0x557579568456 - build_script_build::main::hce1d01953b4437ad [INFO] [stderr] 20: 0x5575795683e3 - core::ops::function::FnOnce::call_once::h42aecbd7c437c4d7 [INFO] [stderr] 21: 0x5575795683c6 - std::sys::backtrace::__rust_begin_short_backtrace::h9f8e53373b226186 [INFO] [stderr] 22: 0x5575795683a9 - std::rt::lang_start::{{closure}}::h0bb22e8ce1d3c23f [INFO] [stderr] 23: 0x557579596edd - core::ops::function::impls:: for &F>::call_once::h4db52d33d48bde75 [INFO] [stderr] at /rustc/81417ccfba1b50f064bed768ddab670f5bbfdcfe/library/core/src/ops/function.rs:284:13 [INFO] [stderr] 24: 0x557579596edd - std::panicking::try::do_call::h0055760f1312eb21 [INFO] [stderr] at /rustc/81417ccfba1b50f064bed768ddab670f5bbfdcfe/library/std/src/panicking.rs:553:40 [INFO] [stderr] 25: 0x557579596edd - std::panicking::try::ha6349a59932e5dfd [INFO] [stderr] at /rustc/81417ccfba1b50f064bed768ddab670f5bbfdcfe/library/std/src/panicking.rs:517:19 [INFO] [stderr] 26: 0x557579596edd - std::panic::catch_unwind::hd1ca42c1a8792236 [INFO] [stderr] at /rustc/81417ccfba1b50f064bed768ddab670f5bbfdcfe/library/std/src/panic.rs:350:14 [INFO] [stderr] 27: 0x557579596edd - std::rt::lang_start_internal::{{closure}}::h052e9c3643022dde [INFO] [stderr] at /rustc/81417ccfba1b50f064bed768ddab670f5bbfdcfe/library/std/src/rt.rs:141:48 [INFO] [stderr] 28: 0x557579596edd - std::panicking::try::do_call::h7f3a081674df5662 [INFO] [stderr] at /rustc/81417ccfba1b50f064bed768ddab670f5bbfdcfe/library/std/src/panicking.rs:553:40 [INFO] [stderr] 29: 0x557579596edd - std::panicking::try::h461739890eaf8e9e [INFO] [stderr] at /rustc/81417ccfba1b50f064bed768ddab670f5bbfdcfe/library/std/src/panicking.rs:517:19 [INFO] [stderr] 30: 0x557579596edd - std::panic::catch_unwind::h5bd8f0aee8a3ce91 [INFO] [stderr] at /rustc/81417ccfba1b50f064bed768ddab670f5bbfdcfe/library/std/src/panic.rs:350:14 [INFO] [stderr] 31: 0x557579596edd - std::rt::lang_start_internal::h7bae8eae6eacd481 [INFO] [stderr] at /rustc/81417ccfba1b50f064bed768ddab670f5bbfdcfe/library/std/src/rt.rs:141:20 [INFO] [stderr] 32: 0x557579568387 - std::rt::lang_start::h99434c338a9e7ca3 [INFO] [stderr] 33: 0x557579568495 - main [INFO] [stderr] 34: 0x7f1d30753d90 - [INFO] [stderr] 35: 0x7f1d30753e40 - __libc_start_main [INFO] [stderr] 36: 0x557579568295 - _start [INFO] [stderr] 37: 0x0 - [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] error: aborting due to 2 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0310, E0642. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0310`. [INFO] [stdout] [INFO] [stderr] error: could not compile `rustc-serialize` (lib) due to 3 previous errors [INFO] running `Command { std: "docker" "inspect" "a7d76a8f2374fda41e0213ba627b5bbaa57a0a0c0230062af2cb104b3ee3427d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a7d76a8f2374fda41e0213ba627b5bbaa57a0a0c0230062af2cb104b3ee3427d", kill_on_drop: false }` [INFO] [stdout] a7d76a8f2374fda41e0213ba627b5bbaa57a0a0c0230062af2cb104b3ee3427d