[INFO] cloning repository https://github.com/stammw/blog
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/stammw/blog" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstammw%2Fblog", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstammw%2Fblog'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 242154580e35571586666cc074a2c4dada56ec29
[INFO] checking stammw/blog against beta-2020-07-24 for pr-75494-beta
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstammw%2Fblog" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/stammw/blog 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] started tweaking git repo https://github.com/stammw/blog
[INFO] finished tweaking git repo https://github.com/stammw/blog
[INFO] tweaked toml for git repo https://github.com/stammw/blog written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/stammw/blog already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "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-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 3d0ca4c52d4ef7fca2af7f7d4687a1f912b2bfde9497d012cd9da460bbdc6996
[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" "3d0ca4c52d4ef7fca2af7f7d4687a1f912b2bfde9497d012cd9da460bbdc6996", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3d0ca4c52d4ef7fca2af7f7d4687a1f912b2bfde9497d012cd9da460bbdc6996", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d0ca4c52d4ef7fca2af7f7d4687a1f912b2bfde9497d012cd9da460bbdc6996", kill_on_drop: false }`
[INFO] [stdout] 3d0ca4c52d4ef7fca2af7f7d4687a1f912b2bfde9497d012cd9da460bbdc6996
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 681c6a289d1a4997cc2fefb7c2b4552f712c73f65e0c4a5bccd18e8e56869799
[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" "681c6a289d1a4997cc2fefb7c2b4552f712c73f65e0c4a5bccd18e8e56869799", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.43
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling proc-macro2 v0.4.23
[INFO] [stderr]    Compiling cc v1.0.25
[INFO] [stderr]     Checking cfg-if v0.1.6
[INFO] [stderr]    Compiling yansi v0.4.0
[INFO] [stderr]     Checking lazy_static v1.2.0
[INFO] [stderr]    Compiling serde v1.0.80
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling byteorder v1.2.7
[INFO] [stderr]    Compiling httparse v1.3.3
[INFO] [stderr]    Compiling ryu v0.2.7
[INFO] [stderr]    Compiling matches v0.1.8
[INFO] [stderr]    Compiling pq-sys v0.4.6
[INFO] [stderr]     Checking stable_deref_trait v1.1.1
[INFO] [stderr]     Checking ucd-util v0.1.2
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling percent-encoding v1.0.1
[INFO] [stderr]     Checking bitflags v1.0.4
[INFO] [stderr]    Compiling pkg-config v0.3.14
[INFO] [stderr]     Checking futures v0.1.25
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling untrusted v0.6.2
[INFO] [stderr]    Compiling typeable v0.1.2
[INFO] [stderr]     Checking antidote v1.0.0
[INFO] [stderr]    Compiling traitobject v0.1.0
[INFO] [stderr]     Checking utf8-ranges v1.0.2
[INFO] [stderr]    Compiling language-tags v0.2.2
[INFO] [stderr]    Compiling state v0.4.1
[INFO] [stderr]     Checking crossbeam-utils v0.5.0
[INFO] [stderr]    Compiling regex v1.0.6
[INFO] [stderr]    Compiling rustc-demangle v0.1.9
[INFO] [stderr]     Checking itoa v0.4.3
[INFO] [stderr]     Checking nodrop v0.1.13
[INFO] [stderr]     Checking unicode-xid v0.1.0
[INFO] [stderr]    Compiling bitflags v0.9.1
[INFO] [stderr]     Checking indexmap v1.0.2
[INFO] [stderr]     Checking foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling pulldown-cmark v0.2.0
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]     Checking constant_time_eq v0.1.3
[INFO] [stderr]     Checking glob v0.2.11
[INFO] [stderr]     Checking deunicode v0.4.3
[INFO] [stderr]    Compiling proc-macro2 v0.3.8
[INFO] [stderr]    Compiling log v0.4.6
[INFO] [stderr]     Checking base64 v0.10.0
[INFO] [stderr]    Compiling unicode-bidi v0.3.4
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]     Checking owning_ref v0.3.3
[INFO] [stderr]     Checking regex-syntax v0.6.3
[INFO] [stderr]     Checking regex-syntax v0.5.6
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling base64 v0.9.3
[INFO] [stderr]    Compiling memchr v2.1.1
[INFO] [stderr]    Compiling unicase v1.4.2
[INFO] [stderr]    Compiling pear_codegen v0.1.0
[INFO] [stderr]    Compiling rocket_codegen v0.4.0-rc.1
[INFO] [stderr]    Compiling rocket_contrib_codegen v0.4.0-rc.1
[INFO] [stderr]    Compiling rocket v0.4.0-rc.1
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking time v0.1.40
[INFO] [stderr]     Checking num_cpus v1.8.0
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking inotify-sys v0.1.3
[INFO] [stderr]     Checking isatty v0.1.9
[INFO] [stderr]     Checking filetime v0.2.3
[INFO] [stderr]     Checking walkdir v2.2.7
[INFO] [stderr]     Checking scheduled-thread-pool v0.2.0
[INFO] [stderr]     Checking arrayvec v0.4.7
[INFO] [stderr]     Checking foreign-types v0.3.2
[INFO] [stderr]     Checking getopts v0.2.18
[INFO] [stderr]     Checking smallvec v0.6.5
[INFO] [stderr]     Checking slug v0.1.4
[INFO] [stderr]     Checking rand v0.5.5
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]     Checking lock_api v0.1.4
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]    Compiling quote v0.5.2
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking bytes v0.4.10
[INFO] [stderr] error: failed to run custom build command for `pear_codegen v0.1.0`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/pear_codegen-71cca2944bf92443/build-script-build` (exit code: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   [1;31mError:[0m [37mPear requires a nightly or dev version of Rust.[0m
[INFO] [stderr]   [37mInstalled version is:[0m [33m1.46.0-beta.2 (2020-07-23)[0m. [37mMinimum required:[0m [33m1.31.0-nightly (2018-10-05)[0m.
[INFO] [stderr]   thread 'main' panicked at 'Aborting compilation due to incompatible compiler.', /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/pear_codegen-0.1.0/build.rs:31:13
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x55cc28afc3e5 - 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:     0x55cc28afc3e5 - 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:     0x55cc28afc3e5 - std::sys_common::backtrace::_print_fmt::h5e71b67af43fd70d
[INFO] [stderr]                                  at src/libstd/sys_common/backtrace.rs:78
[INFO] [stderr]      3:     0x55cc28afc3e5 - <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:     0x55cc28b1e13c - core::fmt::write::ha20e7262fa3e8a7a
[INFO] [stderr]                                  at src/libcore/fmt/mod.rs:1076
[INFO] [stderr]      5:     0x55cc28af9a62 - std::io::Write::write_fmt::h1aebfe8a5a79e36d
[INFO] [stderr]                                  at src/libstd/io/mod.rs:1537
[INFO] [stderr]      6:     0x55cc28afe820 - std::sys_common::backtrace::_print::h9c07314cc66ba539
[INFO] [stderr]                                  at src/libstd/sys_common/backtrace.rs:62
[INFO] [stderr]      7:     0x55cc28afe820 - std::sys_common::backtrace::print::hd1fd65f49a2d8544
[INFO] [stderr]                                  at src/libstd/sys_common/backtrace.rs:49
[INFO] [stderr]      8:     0x55cc28afe820 - std::panicking::default_hook::{{closure}}::h222da46485ab36fc
[INFO] [stderr]                                  at src/libstd/panicking.rs:198
[INFO] [stderr]      9:     0x55cc28afe56c - std::panicking::default_hook::hc5868949d129ed00
[INFO] [stderr]                                  at src/libstd/panicking.rs:217
[INFO] [stderr]     10:     0x55cc28afee63 - std::panicking::rust_panic_with_hook::h26a6ab8b0993c0c8
[INFO] [stderr]                                  at src/libstd/panicking.rs:526
[INFO] [stderr]     11:     0x55cc28ad7a55 - std::panicking::begin_panic::h4403c5746c602146
[INFO] [stderr]                                  at /rustc/6f959902b3103c49ca981fbc01871589c3498489/src/libstd/panicking.rs:456
[INFO] [stderr]     12:     0x55cc28ad5836 - build_script_build::main::h63b4d0a584626aab
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/pear_codegen-0.1.0/build.rs:31
[INFO] [stderr]     13:     0x55cc28ad7fcb - std::rt::lang_start::{{closure}}::hb01651e90c02c6b9
[INFO] [stderr]                                  at /rustc/6f959902b3103c49ca981fbc01871589c3498489/src/libstd/rt.rs:67
[INFO] [stderr]     14:     0x55cc28aff233 - std::rt::lang_start_internal::{{closure}}::h84a998219831fa70
[INFO] [stderr]                                  at src/libstd/rt.rs:52
[INFO] [stderr]     15:     0x55cc28aff233 - std::panicking::try::do_call::he8e1d689a3e26def
[INFO] [stderr]                                  at src/libstd/panicking.rs:348
[INFO] [stderr]     16:     0x55cc28aff233 - std::panicking::try::h264b6eebc2fa7bbf
[INFO] [stderr]                                  at src/libstd/panicking.rs:325
[INFO] [stderr]     17:     0x55cc28aff233 - std::panic::catch_unwind::hbf28fafa723b2128
[INFO] [stderr]                                  at src/libstd/panic.rs:394
[INFO] [stderr]     18:     0x55cc28aff233 - std::rt::lang_start_internal::he959aa59bc3ec202
[INFO] [stderr]                                  at src/libstd/rt.rs:51
[INFO] [stderr]     19:     0x55cc28ad7fa7 - std::rt::lang_start::h4e0e29bcc1cd77e4
[INFO] [stderr]                                  at /rustc/6f959902b3103c49ca981fbc01871589c3498489/src/libstd/rt.rs:67
[INFO] [stderr]     20:     0x55cc28ad66da - main
[INFO] [stderr]     21:     0x7f008c8310b3 - __libc_start_main
[INFO] [stderr]     22:     0x55cc28ad517e - _start
[INFO] [stderr]     23:                0x0 - <unknown>
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "681c6a289d1a4997cc2fefb7c2b4552f712c73f65e0c4a5bccd18e8e56869799", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "681c6a289d1a4997cc2fefb7c2b4552f712c73f65e0c4a5bccd18e8e56869799", kill_on_drop: false }`
[INFO] [stdout] 681c6a289d1a4997cc2fefb7c2b4552f712c73f65e0c4a5bccd18e8e56869799
