[INFO] fetching crate IMAPServer 0.2.0...
[INFO] building IMAPServer-0.2.0 against try#4987e9d4227139400384ab59296ffee3b0fb1183 for pr-146237-2
[INFO] extracting crate IMAPServer 0.2.0 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate IMAPServer 0.2.0
[INFO] finished tweaking crates.io crate IMAPServer 0.2.0
[INFO] tweaked toml for crates.io crate IMAPServer 0.2.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate IMAPServer 0.2.0 on toolchain 4987e9d4227139400384ab59296ffee3b0fb1183
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate IMAPServer 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e46c293aac55768ee3a061bc1fd8730b325f0ba4696b20c8ed6a7c3b1ac626f4
[INFO] running `Command { std: "docker" "start" "-a" "e46c293aac55768ee3a061bc1fd8730b325f0ba4696b20c8ed6a7c3b1ac626f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e46c293aac55768ee3a061bc1fd8730b325f0ba4696b20c8ed6a7c3b1ac626f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e46c293aac55768ee3a061bc1fd8730b325f0ba4696b20c8ed6a7c3b1ac626f4", kill_on_drop: false }`
[INFO] [stdout] e46c293aac55768ee3a061bc1fd8730b325f0ba4696b20c8ed6a7c3b1ac626f4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1a2fb67646ba26ecffb17d17b6dffa22ea3848fd42281765dab8a21565235c97
[INFO] running `Command { std: "docker" "start" "-a" "1a2fb67646ba26ecffb17d17b6dffa22ea3848fd42281765dab8a21565235c97", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling proc-macro2 v1.0.6
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.11
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling failure_derive v0.1.6
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling glob v0.2.11
[INFO] [stderr]    Compiling slab v0.4.2
[INFO] [stderr]    Compiling rustc-demangle v0.1.16
[INFO] [stderr]    Compiling pkg-config v0.3.17
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling quick-error v1.2.2
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling regex-syntax v0.6.12
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]    Compiling futures-core v0.3.1
[INFO] [stderr]    Compiling unicode-width v0.1.7
[INFO] [stderr]    Compiling humantime v1.3.0
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling clang-sys v0.26.4
[INFO] [stderr]    Compiling scopeguard v0.3.3
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling bindgen v0.48.1
[INFO] [stderr]    Compiling termcolor v1.0.5
[INFO] [stderr]    Compiling libsqlite3-sys v0.16.0
[INFO] [stderr]    Compiling proc-macro-nested v0.1.3
[INFO] [stderr]    Compiling futures v0.1.29
[INFO] [stderr]    Compiling vec_map v0.8.1
[INFO] [stderr]    Compiling getrandom v0.1.13
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling aho-corasick v0.7.6
[INFO] [stderr]    Compiling futures-sink v0.3.1
[INFO] [stderr]    Compiling num_cpus v1.11.1
[INFO] [stderr]    Compiling jobserver v0.1.17
[INFO] [stderr]    Compiling atty v0.2.13
[INFO] [stderr]    Compiling hashbrown v0.1.8
[INFO] [stderr]    Compiling net2 v0.2.33
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling cc v1.0.48
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling num-traits v0.2.10
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]    Compiling remove_dir_all v0.5.2
[INFO] [stderr]    Compiling mio v0.6.21
[INFO] [stderr]    Compiling base64 v0.10.1
[INFO] [stderr]    Compiling futures-channel v0.3.1
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling arc-swap v0.4.4
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling pin-utils v0.1.0-alpha.4
[INFO] [stderr]    Compiling futures-io v0.3.1
[INFO] [stderr]    Compiling futures-task v0.3.1
[INFO] [stderr]    Compiling ppv-lite86 v0.2.6
[INFO] [stderr]    Compiling serde v1.0.103
[INFO] [stderr]    Compiling encoding_rs v0.8.20
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling signal-hook-registry v1.2.0
[INFO] [stderr]    Compiling tempdir v0.3.7
[INFO] [stderr]    Compiling backtrace-sys v0.1.32
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling c2-chacha v0.2.3
[INFO] [stderr]    Compiling regex v1.3.1
[INFO] [stderr]    Compiling mio-uds v0.6.7
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]    Compiling fnv v1.0.6
[INFO] [stderr]    Compiling linked-hash-map v0.5.2
[INFO] [stderr]    Compiling pin-project-lite v0.1.1
[INFO] [stderr]    Compiling bytes v0.5.3
[INFO] [stderr]    Compiling rand_chacha v0.2.1
[INFO] [stderr]    Compiling cexpr v0.3.6
[INFO] [stderr]    Compiling time v0.1.42
[INFO] [stderr]    Compiling yaml-rust v0.4.3
[INFO] [stderr]    Compiling futures-cpupool v0.1.8
[INFO] [stderr]    Compiling scopeguard v1.0.0
[INFO] [stderr] error: could not compile `syn` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/4987e9d4227139400384ab59296ffee3b0fb1183/bin/rustc --crate-name syn --edition=2018 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syn-1.0.11/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 --cfg 'feature="clone-impls"' --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="extra-traits"' --cfg 'feature="fold"' --cfg 'feature="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' --cfg 'feature="visit"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("clone-impls", "default", "derive", "extra-traits", "fold", "full", "parsing", "printing", "proc-macro", "quote", "visit", "visit-mut"))' -C metadata=2925963b5deb54bf -C extra-filename=-fd6e524b74de9483 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-7ebdd02400ebe60c.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-d907bb327bf2a948.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-6bb29a11fe85b6ff.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 `regex-syntax` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/4987e9d4227139400384ab59296ffee3b0fb1183/bin/rustc --crate-name regex_syntax --edition=2015 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/regex-syntax-0.6.12/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 --cfg 'feature="unicode-age"' --cfg 'feature="unicode-bool"' --cfg 'feature="unicode-case"' --cfg 'feature="unicode-gencat"' --cfg 'feature="unicode-perl"' --cfg 'feature="unicode-script"' --cfg 'feature="unicode-segment"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("default", "unicode", "unicode-age", "unicode-bool", "unicode-case", "unicode-gencat", "unicode-perl", "unicode-script", "unicode-segment"))' -C metadata=fb207cadcba6c3e2 -C extra-filename=-b379d799d8392d0e --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "1a2fb67646ba26ecffb17d17b6dffa22ea3848fd42281765dab8a21565235c97", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a2fb67646ba26ecffb17d17b6dffa22ea3848fd42281765dab8a21565235c97", kill_on_drop: false }`
[INFO] [stdout] 1a2fb67646ba26ecffb17d17b6dffa22ea3848fd42281765dab8a21565235c97