[INFO] cloning repository https://github.com/ascii-dresden/ascii-prepaid-system
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ascii-dresden/ascii-prepaid-system" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fascii-dresden%2Fascii-prepaid-system", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fascii-dresden%2Fascii-prepaid-system'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e75770b55a24674633bf492676f4c1bb83f04913
[INFO] checking ascii-dresden/ascii-prepaid-system against try#55b3f428b4fac6790b1e8492e0b91ff2d80aec7c for pr-77035
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fascii-dresden%2Fascii-prepaid-system" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ascii-dresden/ascii-prepaid-system on toolchain 55b3f428b4fac6790b1e8492e0b91ff2d80aec7c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+55b3f428b4fac6790b1e8492e0b91ff2d80aec7c" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ascii-dresden/ascii-prepaid-system
[INFO] finished tweaking git repo https://github.com/ascii-dresden/ascii-prepaid-system
[INFO] tweaked toml for git repo https://github.com/ascii-dresden/ascii-prepaid-system written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/ascii-dresden/ascii-prepaid-system already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+55b3f428b4fac6790b1e8492e0b91ff2d80aec7c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pest_generator v2.1.1
[INFO] [stderr]   Downloaded handlebars v3.0.1
[INFO] [stderr]   Downloaded actix-testing v1.0.0
[INFO] [stderr]   Downloaded hashbrown v0.1.8
[INFO] [stderr]   Downloaded enum-as-inner v0.3.0
[INFO] [stderr]   Downloaded twoway v0.2.1
[INFO] [stderr]   Downloaded actix-files v0.2.1
[INFO] [stderr]   Downloaded aho-corasick v0.7.8
[INFO] [stderr]   Downloaded actix-macros v0.1.1
[INFO] [stderr]   Downloaded actix-rt v1.0.0
[INFO] [stderr]   Downloaded backtrace v0.3.43
[INFO] [stderr]   Downloaded unchecked-index v0.2.2
[INFO] [stderr]   Downloaded actix-multipart v0.2.0
[INFO] [stderr]   Downloaded diesel_derives v1.4.1
[INFO] [stderr]   Downloaded actix-server v1.0.1
[INFO] [stderr]   Downloaded bufstream v0.1.4
[INFO] [stderr]   Downloaded actix-identity v0.2.1
[INFO] [stderr]   Downloaded derive_more v0.99.2
[INFO] [stderr]   Downloaded cexpr v0.3.6
[INFO] [stderr]   Downloaded actix-web-codegen v0.2.0
[INFO] [stderr]   Downloaded ucd-trie v0.1.2
[INFO] [stderr]   Downloaded pest v2.1.2
[INFO] [stderr]   Downloaded pest_meta v2.1.2
[INFO] [stderr]   Downloaded bindgen v0.48.1
[INFO] [stderr]   Downloaded regex-syntax v0.6.14
[INFO] [stderr]   Downloaded diesel v1.4.3
[INFO] [stderr]   Downloaded ascii_utils v0.9.3
[INFO] [stderr]   Downloaded chrono v0.4.10
[INFO] [stderr]   Downloaded bumpalo v3.2.0
[INFO] [stderr]   Downloaded regex v1.3.4
[INFO] [stderr]   Downloaded r2d2 v0.8.8
[INFO] [stderr]   Downloaded lettre v0.9.2
[INFO] [stderr]   Downloaded lettre_email v0.9.2
[INFO] [stderr]   Downloaded sass-rs v0.2.2
[INFO] [stderr]   Downloaded sublime_fuzzy v0.6.0
[INFO] [stderr]   Downloaded clang-sys v0.26.4
[INFO] [stderr]   Downloaded sass-sys v0.4.17
[INFO] [stderr]   Downloaded argonautica v0.2.0
[INFO] [stderr]   Downloaded serde_json v1.0.47
[INFO] [stderr]   Downloaded bytestring v0.1.4
[INFO] [stderr]   Downloaded glob v0.2.11
[INFO] [stderr]   Downloaded derive_more v0.15.0
[INFO] [stderr]   Downloaded email v0.0.20
[INFO] [stderr]   Downloaded fast_chemail v0.9.6
[INFO] [stderr]   Downloaded actix-threadpool v0.3.1
[INFO] [stderr]   Downloaded scheduled-thread-pool v0.2.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+55b3f428b4fac6790b1e8492e0b91ff2d80aec7c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c3a59aed243ff33e4ace63bdb1597aa25a7992319d74c82c11edea6895065c4e
[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" "c3a59aed243ff33e4ace63bdb1597aa25a7992319d74c82c11edea6895065c4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c3a59aed243ff33e4ace63bdb1597aa25a7992319d74c82c11edea6895065c4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3a59aed243ff33e4ace63bdb1597aa25a7992319d74c82c11edea6895065c4e", kill_on_drop: false }`
[INFO] [stdout] c3a59aed243ff33e4ace63bdb1597aa25a7992319d74c82c11edea6895065c4e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+55b3f428b4fac6790b1e8492e0b91ff2d80aec7c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a27d5e3c03fcd4a7f8ae0f532290949b32e9b43261b37b373817e2fc0de660b9
[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" "a27d5e3c03fcd4a7f8ae0f532290949b32e9b43261b37b373817e2fc0de660b9", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling proc-macro2 v1.0.8
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.14
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling memchr v2.3.0
[INFO] [stderr]    Compiling proc-macro-nested v0.1.3
[INFO] [stderr]     Checking pin-utils v0.1.0-alpha.4
[INFO] [stderr]     Checking scopeguard v1.0.0
[INFO] [stderr]     Checking pin-project-lite v0.1.4
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]    Compiling regex-syntax v0.6.14
[INFO] [stderr]    Compiling unicode-width v0.1.7
[INFO] [stderr]    Compiling vec_map v0.8.1
[INFO] [stderr]    Compiling termcolor v1.1.0
[INFO] [stderr]    Compiling bindgen v0.48.1
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]    Compiling ucd-trie v0.1.2
[INFO] [stderr]    Compiling remove_dir_all v0.5.2
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]     Checking ascii_utils v0.9.3
[INFO] [stderr]     Checking sublime_fuzzy v0.6.0
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]    Compiling indexmap v1.3.2
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]    Compiling email v0.0.20
[INFO] [stderr]     Checking http v0.2.0
[INFO] [stderr]     Checking c2-chacha v0.2.3
[INFO] [stderr]    Compiling clang-sys v0.26.4
[INFO] [stderr]     Checking miniz_oxide v0.3.6
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling humantime v1.3.0
[INFO] [stderr]     Checking lock_api v0.3.3
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking fast_chemail v0.9.6
[INFO] [stderr]     Checking pest v2.1.2
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]     Checking crc32fast v1.2.0
[INFO] [stderr]     Checking encoding_rs v0.8.22
[INFO] [stderr]     Checking base64 v0.9.3
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling hashbrown v0.1.8
[INFO] [stderr]     Checking url v2.1.1
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking block-cipher-trait v0.6.2
[INFO] [stderr]     Checking aho-corasick v0.7.8
[INFO] [stderr]     Checking twoway v0.2.1
[INFO] [stderr]    Compiling pest_meta v2.1.2
[INFO] [stderr]     Checking aes-soft v0.3.3
[INFO] [stderr]     Checking block-modes v0.3.3
[INFO] [stderr]     Checking mime_guess v2.0.1
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking signal-hook-registry v1.2.0
[INFO] [stderr]     Checking parking_lot_core v0.7.0
[INFO] [stderr]     Checking num_cpus v1.12.0
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking hostname v0.1.5
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking socket2 v0.3.11
[INFO] [stderr]     Checking flate2 v1.0.13
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling jobserver v0.1.21
[INFO] [stderr]     Checking aes v0.3.2
[INFO] [stderr]     Checking regex v1.3.4
[INFO] [stderr]     Checking mio v0.6.21
[INFO] [stderr]     Checking threadpool v1.7.1
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]     Checking resolv-conf v0.6.2
[INFO] [stderr]    Compiling cexpr v0.3.6
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking parking_lot v0.10.0
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]    Compiling cc v1.0.50
[INFO] [stderr]    Compiling sass-sys v0.4.17
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking scheduled-thread-pool v0.2.3
[INFO] [stderr]    Compiling tempdir v0.3.7
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]     Checking r2d2 v0.8.8
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]     Checking tokio v0.2.11
[INFO] [stderr] error: could not compile `syn`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name syn /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/syn-0.15.44/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -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"' -C metadata=5cbdab859a917c54 -C extra-filename=-5cbdab859a917c54 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-ab33b97f38e6e831.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-476d26c939207289.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-e62bdf8dd5704851.rmeta --cap-lints allow --cap-lints=forbid --cfg syn_can_match_trailing_dollar --cfg syn_can_use_thread_id --cfg syn_can_use_associated_constants --cfg syn_can_call_macro_by_path` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "a27d5e3c03fcd4a7f8ae0f532290949b32e9b43261b37b373817e2fc0de660b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a27d5e3c03fcd4a7f8ae0f532290949b32e9b43261b37b373817e2fc0de660b9", kill_on_drop: false }`
[INFO] [stdout] a27d5e3c03fcd4a7f8ae0f532290949b32e9b43261b37b373817e2fc0de660b9