[INFO] fetching crate hyperjson 0.2.4...
[INFO] checking hyperjson-0.2.4 against beta-2020-07-24 for pr-75494-beta
[INFO] extracting crate hyperjson 0.2.4 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate hyperjson 0.2.4 on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-7/source/.cargo/config
[INFO] started tweaking crates.io crate hyperjson 0.2.4
[INFO] finished tweaking crates.io crate hyperjson 0.2.4
[INFO] tweaked toml for crates.io crate hyperjson 0.2.4 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cc256cf6f32a33c6a310ce781ac517b305560f17a76f9e80b3ec843a40e20400
[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" "cc256cf6f32a33c6a310ce781ac517b305560f17a76f9e80b3ec843a40e20400", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cc256cf6f32a33c6a310ce781ac517b305560f17a76f9e80b3ec843a40e20400", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc256cf6f32a33c6a310ce781ac517b305560f17a76f9e80b3ec843a40e20400", kill_on_drop: false }`
[INFO] [stdout] cc256cf6f32a33c6a310ce781ac517b305560f17a76f9e80b3ec843a40e20400
[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" "+beta-2020-07-24" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 809f9a5d281252759f64dc2d0288e00bdc512409f22f4f1ca13fd903ae8e154c
[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" "809f9a5d281252759f64dc2d0288e00bdc512409f22f4f1ca13fd903ae8e154c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.39
[INFO] [stderr]    Compiling serde_derive v1.0.115
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde v1.0.115
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]    Compiling itoa v0.4.6
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking adler v0.2.3
[INFO] [stderr]    Compiling unindent v0.1.6
[INFO] [stderr]    Compiling inventory v0.1.8
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking gimli v0.22.0
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]     Checking object v0.20.0
[INFO] [stderr]     Checking rustc-demangle v0.1.16
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]    Compiling paste-impl v0.1.18
[INFO] [stderr]     Checking miniz_oxide v0.4.0
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling aho-corasick v0.7.13
[INFO] [stderr]     Checking paste v0.1.18
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling regex v1.3.9
[INFO] [stderr]     Checking addr2line v0.13.0
[INFO] [stderr]     Checking backtrace v0.3.50
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling pyo3-derive-backend v0.8.5
[INFO] [stderr]    Compiling indoc-impl v0.3.6
[INFO] [stderr]    Compiling ctor v0.1.15
[INFO] [stderr]    Compiling inventory-impl v0.1.8
[INFO] [stderr]    Compiling ghost v0.1.2
[INFO] [stderr]    Compiling pyo3cls v0.8.5
[INFO] [stderr]     Checking indoc v0.3.6
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]    Compiling pyo3 v0.8.5
[INFO] [stderr] error: failed to run custom build command for `pyo3 v0.8.5`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/pyo3-2b66377000d39cbf/build-script-build` (exit code: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   thread 'main' panicked at 'Error: pyo3 requires a nightly or dev version of Rust.', /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/pyo3-0.8.5/build.rs:542:9
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x56078d4a8035 - backtrace::backtrace::libunwind::trace::h5e2646fa3eddf2ea
[INFO] [stderr]                                  at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/libunwind.rs:86
[INFO] [stderr]      1:     0x56078d4a8035 - backtrace::backtrace::trace_unsynchronized::hb95dd7f77ce47877
[INFO] [stderr]                                  at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/mod.rs:66
[INFO] [stderr]      2:     0x56078d4a8035 - std::sys_common::backtrace::_print_fmt::h5e71b67af43fd70d
[INFO] [stderr]                                  at src/libstd/sys_common/backtrace.rs:78
[INFO] [stderr]      3:     0x56078d4a8035 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hdb4a83d2b61107e5
[INFO] [stderr]                                  at src/libstd/sys_common/backtrace.rs:59
[INFO] [stderr]      4:     0x56078d4cef0c - core::fmt::write::ha20e7262fa3e8a7a
[INFO] [stderr]                                  at src/libcore/fmt/mod.rs:1076
[INFO] [stderr]      5:     0x56078d4a5442 - std::io::Write::write_fmt::h1aebfe8a5a79e36d
[INFO] [stderr]                                  at src/libstd/io/mod.rs:1537
[INFO] [stderr]      6:     0x56078d4aa4f0 - std::sys_common::backtrace::_print::h9c07314cc66ba539
[INFO] [stderr]                                  at src/libstd/sys_common/backtrace.rs:62
[INFO] [stderr]      7:     0x56078d4aa4f0 - std::sys_common::backtrace::print::hd1fd65f49a2d8544
[INFO] [stderr]                                  at src/libstd/sys_common/backtrace.rs:49
[INFO] [stderr]      8:     0x56078d4aa4f0 - std::panicking::default_hook::{{closure}}::h222da46485ab36fc
[INFO] [stderr]                                  at src/libstd/panicking.rs:198
[INFO] [stderr]      9:     0x56078d4aa23c - std::panicking::default_hook::hc5868949d129ed00
[INFO] [stderr]                                  at src/libstd/panicking.rs:217
[INFO] [stderr]     10:     0x56078d4aab33 - std::panicking::rust_panic_with_hook::h26a6ab8b0993c0c8
[INFO] [stderr]                                  at src/libstd/panicking.rs:526
[INFO] [stderr]     11:     0x56078d2c4a69 - std::panicking::begin_panic::hfb2ac591b1f391e0
[INFO] [stderr]                                  at /rustc/6f959902b3103c49ca981fbc01871589c3498489/src/libstd/panicking.rs:456
[INFO] [stderr]     12:     0x56078d27ac56 - build_script_build::check_rustc_version::h85242df34e10ab32
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/pyo3-0.8.5/build.rs:542
[INFO] [stderr]     13:     0x56078d27afc7 - build_script_build::main::hc3bc817a4e5f5919
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/pyo3-0.8.5/build.rs:563
[INFO] [stderr]     14:     0x56078d294fdd - std::rt::lang_start::{{closure}}::h3165ca19f72e3bcd
[INFO] [stderr]                                  at /rustc/6f959902b3103c49ca981fbc01871589c3498489/src/libstd/rt.rs:67
[INFO] [stderr]     15:     0x56078d4aaf03 - std::rt::lang_start_internal::{{closure}}::h84a998219831fa70
[INFO] [stderr]                                  at src/libstd/rt.rs:52
[INFO] [stderr]     16:     0x56078d4aaf03 - std::panicking::try::do_call::he8e1d689a3e26def
[INFO] [stderr]                                  at src/libstd/panicking.rs:348
[INFO] [stderr]     17:     0x56078d4aaf03 - std::panicking::try::h264b6eebc2fa7bbf
[INFO] [stderr]                                  at src/libstd/panicking.rs:325
[INFO] [stderr]     18:     0x56078d4aaf03 - std::panic::catch_unwind::hbf28fafa723b2128
[INFO] [stderr]                                  at src/libstd/panic.rs:394
[INFO] [stderr]     19:     0x56078d4aaf03 - std::rt::lang_start_internal::he959aa59bc3ec202
[INFO] [stderr]                                  at src/libstd/rt.rs:51
[INFO] [stderr]     20:     0x56078d294fa7 - std::rt::lang_start::h8e0324dfd173ce24
[INFO] [stderr]                                  at /rustc/6f959902b3103c49ca981fbc01871589c3498489/src/libstd/rt.rs:67
[INFO] [stderr]     21:     0x56078d27ffaa - main
[INFO] [stderr]     22:     0x7fa818ff60b3 - __libc_start_main
[INFO] [stderr]     23:     0x56078d27517e - _start
[INFO] [stderr]     24:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "809f9a5d281252759f64dc2d0288e00bdc512409f22f4f1ca13fd903ae8e154c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "809f9a5d281252759f64dc2d0288e00bdc512409f22f4f1ca13fd903ae8e154c", kill_on_drop: false }`
[INFO] [stdout] 809f9a5d281252759f64dc2d0288e00bdc512409f22f4f1ca13fd903ae8e154c
