[INFO] cloning repository https://github.com/ShawnLi-25/ECE598-Principle-of-BlockChain
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ShawnLi-25/ECE598-Principle-of-BlockChain" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FShawnLi-25%2FECE598-Principle-of-BlockChain", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FShawnLi-25%2FECE598-Principle-of-BlockChain'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b3586014f380b1ed776bfca0517e3560f61ae023
[INFO] testing ShawnLi-25/ECE598-Principle-of-BlockChain against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FShawnLi-25%2FECE598-Principle-of-BlockChain" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/ShawnLi-25/ECE598-Principle-of-BlockChain
[INFO] finished tweaking git repo https://github.com/ShawnLi-25/ECE598-Principle-of-BlockChain
[INFO] tweaked toml for git repo https://github.com/ShawnLi-25/ECE598-Principle-of-BlockChain written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ShawnLi-25/ECE598-Principle-of-BlockChain on toolchain d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/ShawnLi-25/ECE598-Principle-of-BlockChain 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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f056bee699e8b4ebdf8f2cbd3cf70e04436c544e66a1817aab5a06188928843a
[INFO] running `Command { std: "docker" "start" "-a" "f056bee699e8b4ebdf8f2cbd3cf70e04436c544e66a1817aab5a06188928843a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f056bee699e8b4ebdf8f2cbd3cf70e04436c544e66a1817aab5a06188928843a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f056bee699e8b4ebdf8f2cbd3cf70e04436c544e66a1817aab5a06188928843a", kill_on_drop: false }`
[INFO] [stdout] f056bee699e8b4ebdf8f2cbd3cf70e04436c544e66a1817aab5a06188928843a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0bb390fec3377f9261101d75d0ab2c7feceb8886cb1b92f93d528ae7fb13be87
[INFO] running `Command { std: "docker" "start" "-a" "0bb390fec3377f9261101d75d0ab2c7feceb8886cb1b92f93d528ae7fb13be87", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling libc v0.2.67
[INFO] [stderr]    Compiling proc-macro2 v1.0.8
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling syn v1.0.15
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling regex-syntax v0.6.14
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling smallvec v1.2.0
[INFO] [stderr]    Compiling ucd-trie v0.1.2
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]    Compiling ppv-lite86 v0.2.6
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]    Compiling fnv v1.0.6
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling unicode-normalization v0.1.12
[INFO] [stderr]    Compiling unic-char-range v0.9.0
[INFO] [stderr]    Compiling unic-common v0.9.0
[INFO] [stderr]    Compiling walkdir v2.3.1
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling memoffset v0.5.3
[INFO] [stderr]    Compiling unic-char-property v0.9.0
[INFO] [stderr]    Compiling unic-ucd-version v0.9.0
[INFO] [stderr]    Compiling cc v1.0.50
[INFO] [stderr]    Compiling aho-corasick v0.7.8
[INFO] [stderr]    Compiling c2-chacha v0.2.3
[INFO] [stderr]    Compiling bstr v0.2.11
[INFO] [stderr]    Compiling unic-ucd-segment v0.9.0
[INFO] [stderr]    Compiling unreachable v1.0.0
[INFO] [stderr]    Compiling pest_meta v2.1.3
[INFO] [stderr]    Compiling unicode-width v0.1.7
[INFO] [stderr]    Compiling time v0.1.42
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling term_size v0.3.1
[INFO] [stderr]    Compiling atty v0.2.11
[INFO] [stderr]    Compiling net2 v0.2.33
[INFO] [stderr]    Compiling deunicode v0.4.3
[INFO] [stderr]    Compiling percent-encoding v1.0.1
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling idna v0.1.5
[INFO] [stderr]    Compiling lazy_static v0.2.11
[INFO] [stderr]    Compiling crossbeam-channel v0.4.2
[INFO] [stderr]    Compiling slab v0.4.2
[INFO] [stderr]    Compiling itoa v0.4.5
[INFO] [stderr]    Compiling rand_chacha v0.2.1
[INFO] [stderr]    Compiling percent-encoding v2.1.0
[INFO] [stderr]    Compiling crossbeam-queue v0.2.1
[INFO] [stderr]    Compiling thread_local v0.3.4
[INFO] [stderr]    Compiling slug v0.1.4
[INFO] [stderr]    Compiling mio v0.6.21
[INFO] [stderr]    Compiling idna v0.2.0
[INFO] [stderr]    Compiling ring v0.16.11
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling crossbeam-deque v0.7.3
[INFO] [stderr]    Compiling url v1.7.2
[INFO] [stderr]    Compiling textwrap v0.11.0
[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/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/bin/rustc --crate-name regex_syntax --edition=2015 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/regex-syntax-0.6.14/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="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=b487007b229ced64 -C extra-filename=-73303472a40f6182 --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] [stderr] warning: build failed, waiting for other jobs to finish...
[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/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/bin/rustc --crate-name syn --edition=2018 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syn-1.0.15/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="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=27aba6bea0aef372 -C extra-filename=-b8f5dc747f996827 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-fa4d71d0fd643806.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-32a2e5c4e4e82d5d.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-6bb29a11fe85b6ff.rmeta --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "0bb390fec3377f9261101d75d0ab2c7feceb8886cb1b92f93d528ae7fb13be87", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0bb390fec3377f9261101d75d0ab2c7feceb8886cb1b92f93d528ae7fb13be87", kill_on_drop: false }`
[INFO] [stdout] 0bb390fec3377f9261101d75d0ab2c7feceb8886cb1b92f93d528ae7fb13be87