[INFO] cloning repository https://github.com/saidatta/algorithms-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/saidatta/algorithms-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsaidatta%2Falgorithms-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsaidatta%2Falgorithms-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b8bbb34907ec87c9ad808fe717c3fa0002fa0bc0
[INFO] building saidatta/algorithms-rust against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsaidatta%2Falgorithms-rust" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-7-tc2/source/.cargo/config
[INFO] started tweaking git repo https://github.com/saidatta/algorithms-rust
[INFO] finished tweaking git repo https://github.com/saidatta/algorithms-rust
[INFO] tweaked toml for git repo https://github.com/saidatta/algorithms-rust written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/saidatta/algorithms-rust 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/saidatta/algorithms-rust 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] 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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1146ee4342e9add764ee938b7f3da5e15bd30987e9a03c2a8f0ccb47c9c7b66b
[INFO] running `Command { std: "docker" "start" "-a" "1146ee4342e9add764ee938b7f3da5e15bd30987e9a03c2a8f0ccb47c9c7b66b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1146ee4342e9add764ee938b7f3da5e15bd30987e9a03c2a8f0ccb47c9c7b66b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1146ee4342e9add764ee938b7f3da5e15bd30987e9a03c2a8f0ccb47c9c7b66b", kill_on_drop: false }`
[INFO] [stdout] 1146ee4342e9add764ee938b7f3da5e15bd30987e9a03c2a8f0ccb47c9c7b66b
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e61a08e16293ddc4f70b29003206882f4f214b84837dbf7a4fd2e89c0ddfa54c
[INFO] running `Command { std: "docker" "start" "-a" "e61a08e16293ddc4f70b29003206882f4f214b84837dbf7a4fd2e89c0ddfa54c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.159
[INFO] [stderr]    Compiling futures v0.1.31
[INFO] [stderr]    Compiling value-bag v1.9.0
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling cc v1.1.30
[INFO] [stderr]    Compiling unicode-bidi v0.3.17
[INFO] [stderr]    Compiling autocfg v0.1.8
[INFO] [stderr]    Compiling itoa v0.4.8
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling unicode-normalization v0.1.24
[INFO] [stderr]    Compiling parking_lot_core v0.6.3
[INFO] [stderr]    Compiling matches v0.1.10
[INFO] [stderr]    Compiling syn v2.0.79
[INFO] [stderr]    Compiling smallvec v0.6.14
[INFO] [stderr]    Compiling unicase v2.7.0
[INFO] [stderr]    Compiling lock_api v0.3.4
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling futures-core-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling futures-sink-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling futures-io-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling miniz_oxide v0.8.0
[INFO] [stderr]    Compiling log v0.4.22
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling futures-channel-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling openssl v0.10.66
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling httparse v1.9.5
[INFO] [stderr]    Compiling idna v0.5.0
[INFO] [stderr]    Compiling idna v0.1.5
[INFO] [stderr]    Compiling addr2line v0.24.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling hyper v0.12.36
[INFO] [stderr]    Compiling mime_guess v2.0.5
[INFO] [stderr]    Compiling object v0.36.5
[INFO] [stderr]    Compiling curl v0.4.47
[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=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syn-2.0.79/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="visit"' --cfg 'feature="visit-mut"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("clone-impls", "default", "derive", "extra-traits", "fold", "full", "parsing", "printing", "proc-macro", "test", "visit", "visit-mut"))' -C metadata=03c157839374c04b -C extra-filename=-d1cd4aaa059fdf52 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-f99eeaefde312cdf.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-ed81817abc3a32f0.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-d14904b1232aa2ec.rmeta --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "e61a08e16293ddc4f70b29003206882f4f214b84837dbf7a4fd2e89c0ddfa54c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e61a08e16293ddc4f70b29003206882f4f214b84837dbf7a4fd2e89c0ddfa54c", kill_on_drop: false }`
[INFO] [stdout] e61a08e16293ddc4f70b29003206882f4f214b84837dbf7a4fd2e89c0ddfa54c