[INFO] cloning repository https://github.com/giggio/bulkmail.rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/giggio/bulkmail.rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgiggio%2Fbulkmail.rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgiggio%2Fbulkmail.rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cc7df95ed3ca4ad37a4f4b65fb361a5dc5c1b745
[INFO] testing giggio/bulkmail.rs against beta-2022-02-22 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgiggio%2Fbulkmail.rs" "/workspace/builds/worker-35/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-35/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/giggio/bulkmail.rs on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/giggio/bulkmail.rs
[INFO] finished tweaking git repo https://github.com/giggio/bulkmail.rs
[INFO] tweaked toml for git repo https://github.com/giggio/bulkmail.rs written to /workspace/builds/worker-35/source/Cargo.toml
[INFO] crate git repo https://github.com/giggio/bulkmail.rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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 diff v0.1.12
[INFO] [stderr]   Downloaded pretty_assertions v0.7.2
[INFO] [stderr]   Downloaded typenum v1.13.0
[INFO] [stderr]   Downloaded serde v1.0.127
[INFO] [stderr]   Downloaded serde_derive v1.0.127
[INFO] [stderr]   Downloaded quoted_printable v0.4.3
[INFO] [stderr]   Downloaded lettre v0.10.0-rc.3
[INFO] [stderr]   Downloaded serde_json v1.0.66
[INFO] [stderr]   Downloaded handlebars v4.1.1
[INFO] [stderr]   Downloaded openssl-src v111.15.0+1.1.1k
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0eaf57ef7f4ff3b6c94e986106158127e5385f000c237a8fb02a55507d9770f0
[INFO] running `Command { std: "docker" "start" "-a" "0eaf57ef7f4ff3b6c94e986106158127e5385f000c237a8fb02a55507d9770f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0eaf57ef7f4ff3b6c94e986106158127e5385f000c237a8fb02a55507d9770f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0eaf57ef7f4ff3b6c94e986106158127e5385f000c237a8fb02a55507d9770f0", kill_on_drop: false }`
[INFO] [stdout] 0eaf57ef7f4ff3b6c94e986106158127e5385f000c237a8fb02a55507d9770f0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 041e4abe7bd13fc41ac508b1b4ae435ff5a84536ccc20667af0cf15636ae323b
[INFO] running `Command { std: "docker" "start" "-a" "041e4abe7bd13fc41ac508b1b4ae435ff5a84536ccc20667af0cf15636ae323b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling cc v1.0.69
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling once_cell v1.8.0
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling serde_derive v1.0.127
[INFO] [stderr]    Compiling untrusted v0.7.1
[INFO] [stderr]    Compiling serde v1.0.127
[INFO] [stderr]    Compiling spin v0.5.2
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling radium v0.5.3
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]    Compiling foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling openssl v0.10.35
[INFO] [stderr]    Compiling tap v1.0.1
[INFO] [stderr]    Compiling matches v0.1.8
[INFO] [stderr]    Compiling wyz v0.2.0
[INFO] [stderr]    Compiling funty v1.1.0
[INFO] [stderr]    Compiling native-tls v0.2.7
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]    Compiling serde_json v1.0.66
[INFO] [stderr]    Compiling openssl-probe v0.1.4
[INFO] [stderr]    Compiling match_cfg v0.1.0
[INFO] [stderr]    Compiling regex-automata v0.1.10
[INFO] [stderr]    Compiling base64 v0.13.0
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling quick-error v2.0.1
[INFO] [stderr]    Compiling quoted_printable v0.4.3
[INFO] [stderr]    Compiling fastrand v1.5.0
[INFO] [stderr]    Compiling bulkmail v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling httpdate v1.0.1
[INFO] [stderr]    Compiling mime v0.3.16
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling instant v0.1.10
[INFO] [stderr]    Compiling lock_api v0.4.4
[INFO] [stderr]    Compiling nom v6.2.1
[INFO] [stderr]    Compiling tinyvec v1.3.1
[INFO] [stderr]    Compiling foreign-types v0.3.2
[INFO] [stderr]    Compiling unicode-bidi v0.3.5
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]    Compiling openssl-src v111.15.0+1.1.1k
[INFO] [stderr]    Compiling unicode-normalization v0.1.19
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]    Compiling openssl-sys v0.9.65
[INFO] [stderr]    Compiling pest_meta v2.1.3
[INFO] [stderr]    Compiling bitvec v0.19.5
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling parking_lot_core v0.8.3
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling hostname v0.3.1
[INFO] [stderr]    Compiling which v4.2.2
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling parking_lot v0.11.1
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling idna v0.2.3
[INFO] [stderr]    Compiling scheduled-thread-pool v0.2.5
[INFO] [stderr]    Compiling r2d2 v0.8.9
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]    Compiling webpki v0.21.4
[INFO] [stderr]    Compiling sct v0.6.1
[INFO] [stderr] error: could not compile `syn`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name syn --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/syn-1.0.74/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --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="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' --cfg 'feature="visit"' -C metadata=9a7c2e22c9793288 -C extra-filename=-9a7c2e22c9793288 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-99e494321b9801a4.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-14520ee950573b38.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-11d097b41f2e60a4.rmeta --cap-lints allow --cap-lints=warn --cfg syn_disable_nightly_tests` (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" "041e4abe7bd13fc41ac508b1b4ae435ff5a84536ccc20667af0cf15636ae323b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "041e4abe7bd13fc41ac508b1b4ae435ff5a84536ccc20667af0cf15636ae323b", kill_on_drop: false }`
[INFO] [stdout] 041e4abe7bd13fc41ac508b1b4ae435ff5a84536ccc20667af0cf15636ae323b