[INFO] updating cached repository https://github.com/pop-os/upgrade
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] [stderr] From https://github.com/pop-os/upgrade
[INFO] [stderr]  - [deleted]         (none)     -> cancel-recovery
[INFO] [stderr]  * [new branch]      async-recovery -> async-recovery
[INFO] [stderr]    684c4ca..e366296  master         -> master
[INFO] [stderr]  + 80b4f5b...e64a503 refresh-os     -> refresh-os  (forced update)
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e3662962bd5d5eed1320874976e7e7a6386d09e3
[INFO] checking pop-os/upgrade against master#0d2817a439c2ad9fe343f6347eb6d90947893363 for pr-67531
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpop-os%2Fupgrade" "/workspace/builds/worker-5/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/pop-os/upgrade on toolchain 0d2817a439c2ad9fe343f6347eb6d90947893363
[INFO] running `"/workspace/cargo-home/bin/cargo" "+0d2817a439c2ad9fe343f6347eb6d90947893363" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/pop-os/upgrade
[INFO] removed workspace from git repo https://github.com/pop-os/upgrade
[INFO] finished tweaking git repo https://github.com/pop-os/upgrade
[INFO] tweaked toml for git repo https://github.com/pop-os/upgrade written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/pop-os/upgrade already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+0d2817a439c2ad9fe343f6347eb6d90947893363" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /workspace/builds/worker-5/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/workspace/cargo-home/bin/cargo" "+0d2817a439c2ad9fe343f6347eb6d90947893363" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Updating git repository `https://github.com/pop-os/sysfs-class`
[INFO] [stderr]     Updating git repository `https://github.com/pop-os/apt-cli-wrappers`
[INFO] [stderr]     Updating git repository `https://github.com/pop-os/apt-fetcher`
[INFO] [stderr]     Updating git repository `https://github.com/pop-os/apt-keyring`
[INFO] [stderr]     Updating git repository `https://github.com/pop-os/apt-sources-lists`
[INFO] [stderr]     Updating git repository `https://github.com/pop-os/async-fetcher`
[INFO] [stderr]     Updating git repository `https://github.com/pop-os/distinst/`
[INFO] [stderr]     Updating git repository `https://github.com/pop-os/parallel-getter`
[INFO] [stderr]     Updating git repository `https://github.com/pop-os/exit-status-ext`
[INFO] [stderr]     Updating git repository `https://github.com/pop-os/apt-release-file`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+0d2817a439c2ad9fe343f6347eb6d90947893363" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+0d2817a439c2ad9fe343f6347eb6d90947893363" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 9151bb4935135cdf6daeb4b70c35219337eabf25e532ee24cd05930b9236a028
[INFO] running `"docker" "start" "-a" "9151bb4935135cdf6daeb4b70c35219337eabf25e532ee24cd05930b9236a028"`
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling syn v1.0.11
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling bitflags v0.8.2
[INFO] [stderr]     Checking smallvec v1.1.0
[INFO] [stderr]    Compiling ucd-util v0.1.5
[INFO] [stderr]    Compiling utf8-ranges v1.0.4
[INFO] [stderr]    Compiling unicode-width v0.1.7
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling vec_map v0.8.1
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]    Compiling lazy_static v0.2.11
[INFO] [stderr]     Checking numtoa v0.2.3
[INFO] [stderr]    Compiling encoding_rs v0.8.22
[INFO] [stderr]     Checking arc-swap v0.4.4
[INFO] [stderr]     Checking cascade v0.1.4
[INFO] [stderr]     Checking rle-decode-fast v1.0.1
[INFO] [stderr]     Checking unicode_categories v0.1.1
[INFO] [stderr]     Checking iowrap v0.1.2
[INFO] [stderr]     Checking deb-architectures v0.1.0
[INFO] [stderr]    Compiling either v1.5.3
[INFO] [stderr]     Checking hex-view v0.1.3
[INFO] [stderr]     Checking distinst-bootloader v0.1.0 (https://github.com/pop-os/distinst/#ad942ea6)
[INFO] [stderr]     Checking exit-status-ext v0.1.0 (https://github.com/pop-os/exit-status-ext#46700735)
[INFO] [stderr]     Checking progress-streams v1.1.0
[INFO] [stderr]     Checking hex v0.4.0
[INFO] [stderr]     Checking human-sort v0.2.2
[INFO] [stderr]     Checking enclose v1.1.8
[INFO] [stderr]     Checking atomic v0.4.5
[INFO] [stderr]     Checking os-release v0.1.0
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]    Compiling lz4-sys v1.8.3
[INFO] [stderr]     Checking itertools v0.7.11
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]    Compiling syntex_pos v0.58.1
[INFO] [stderr]    Compiling clang-sys v0.19.0
[INFO] [stderr]    Compiling libdbus-sys v0.2.1
[INFO] [stderr]    Compiling lzma-sys v0.1.15
[INFO] [stderr]     Checking block-padding v0.1.5
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling regex-syntax v0.5.6
[INFO] [stderr]     Checking sysfs-class v0.1.2 (https://github.com/pop-os/sysfs-class#25c8ab30)
[INFO] [stderr]     Checking unicode-normalization v0.1.11
[INFO] [stderr]    Compiling backtrace-sys v0.1.32
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling libloading v0.4.3
[INFO] [stderr]     Checking snailquote v0.2.0
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]    Compiling aho-corasick v0.6.10
[INFO] [stderr]     Checking rand_chacha v0.1.1
[INFO] [stderr]    Compiling smart-default v0.2.0
[INFO] [stderr]     Checking libflate v0.1.27
[INFO] [stderr]     Checking crossbeam-epoch v0.5.2
[INFO] [stderr]     Checking crossbeam-epoch v0.6.1
[INFO] [stderr]     Checking envfile v0.2.1
[INFO] [stderr]     Checking crossbeam-channel v0.4.0
[INFO] [stderr]     Checking sedregex v0.1.1
[INFO] [stderr]    Compiling smart-default v0.3.0
[INFO] [stderr]     Checking crossbeam-deque v0.5.2
[INFO] [stderr]     Checking distinst-utils v0.1.0 (https://github.com/pop-os/distinst/#ad942ea6)
[INFO] [stderr]     Checking num v0.2.0
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking sha-1 v0.8.1
[INFO] [stderr]     Checking sha2 v0.8.0
[INFO] [stderr]     Checking md-5 v0.8.0
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking num_cpus v1.11.1
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking errno v0.2.4
[INFO] [stderr]     Checking openssl-sys v0.9.53
[INFO] [stderr]     Checking getrandom v0.1.13
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking flate2 v1.0.13
[INFO] [stderr]     Checking signal-hook-registry v1.2.0
[INFO] [stderr]     Checking filetime v0.2.8
[INFO] [stderr]     Checking dbus v0.6.5
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]    Compiling syntex_errors v0.58.1
[INFO] [stderr]    Compiling memchr v1.0.2
[INFO] [stderr]    Compiling which v1.0.5
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]     Checking backtrace v0.3.40
[INFO] [stderr]     Checking loopdev v0.2.1
[INFO] [stderr]     Checking exec v0.3.1
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking mio v0.6.21
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]     Checking xz2 v0.1.6
[INFO] [stderr]     Checking signal-hook v0.1.12
[INFO] [stderr]     Checking url v2.1.0
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking chrono v0.4.10
[INFO] [stderr]    Compiling nom v3.2.1
[INFO] [stderr]     Checking openssl v0.10.26
[INFO] [stderr]     Checking sys-mount v1.2.1
[INFO] [stderr]     Checking error-chain v0.12.1
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]    Compiling syntex_syntax v0.58.1
[INFO] [stderr]     Checking tokio-io v0.1.12
[INFO] [stderr]     Checking http v0.1.21
[INFO] [stderr]     Checking string v0.2.1
[INFO] [stderr]     Checking tokio-buf v0.1.1
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]     Checking cookie v0.12.0
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]     Checking distinst-chroot v0.1.0 (https://github.com/pop-os/distinst/#ad942ea6)
[INFO] [stderr]     Checking publicsuffix v1.5.4
[INFO] [stderr]     Checking apt-release-file v0.1.1 (https://github.com/pop-os/apt-release-file#a080bc6a)
[INFO] [stderr]     Checking procfs v0.5.4
[INFO] [stderr] error[E0423]: expected function, tuple struct or tuple variant, found struct `ast::Name`
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/syntex_syntax-0.58.1/src/symbol.rs:146:27
[INFO] [stderr]     |
[INFO] [stderr] 146 |                       name: ast::Name($index),
[INFO] [stderr]     |                             ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 165 | / declare_keywords! {
[INFO] [stderr] 166 | |     // Invalid identifier
[INFO] [stderr] 167 | |     (0,  Invalid,        "")
[INFO] [stderr] 168 | |
[INFO] [stderr] ...   |
[INFO] [stderr] 231 | |     (56, CrateRoot, "{{root}}")
[INFO] [stderr] 232 | | }
[INFO] [stderr]     | |_- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr]     Checking procfs v0.7.7
[INFO] [stderr]     Checking fern v0.5.9
[INFO] [stderr]     Checking uuid v0.7.4
[INFO] [stderr]     Checking rand v0.7.2
[INFO] [stderr]     Checking tokio-codec v0.1.1
[INFO] [stderr]    Compiling cexpr v0.2.3
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling proc-macro-error v0.2.6
[INFO] [stderr] error: could not compile `http`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name http /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/http-0.1.21/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata -C debuginfo=2 -C metadata=c327645f7322285f -C extra-filename=-c327645f7322285f --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bytes=/opt/rustwide/target/debug/deps/libbytes-fb1b947bc63e7571.rmeta --extern fnv=/opt/rustwide/target/debug/deps/libfnv-bb29fbb99c526ade.rmeta --extern itoa=/opt/rustwide/target/debug/deps/libitoa-869ce0b89be7549b.rmeta --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `syn`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --edition=2018 --crate-name syn /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/syn-1.0.11/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C debuginfo=2 --cfg 'feature="clone-impls"' --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="extra-traits"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' --cfg 'feature="visit"' -C metadata=1df9d7cfdc1935d7 -C extra-filename=-1df9d7cfdc1935d7 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-b72f7a561f9f3962.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-731f7bf81d0096d1.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-3e2a12017787a801.rmeta --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0423`.
[INFO] [stderr] error: could not compile `syntex_syntax`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "9151bb4935135cdf6daeb4b70c35219337eabf25e532ee24cd05930b9236a028"`
[INFO] running `"docker" "rm" "-f" "9151bb4935135cdf6daeb4b70c35219337eabf25e532ee24cd05930b9236a028"`
[INFO] [stdout] 9151bb4935135cdf6daeb4b70c35219337eabf25e532ee24cd05930b9236a028