[INFO] cloning repository https://github.com/aweinstock314/kingr4_weinsa_distributedsystems_project2
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/aweinstock314/kingr4_weinsa_distributedsystems_project2" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faweinstock314%2Fkingr4_weinsa_distributedsystems_project2", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faweinstock314%2Fkingr4_weinsa_distributedsystems_project2'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e8e186eb23c5a60e0798c44b5088cf3e9e4cd51f
[INFO] checking aweinstock314/kingr4_weinsa_distributedsystems_project2 against try#b0d0ea232bdae12fa8da8491a91ae1db029990ef for pr-84037
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faweinstock314%2Fkingr4_weinsa_distributedsystems_project2" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/aweinstock314/kingr4_weinsa_distributedsystems_project2 on toolchain b0d0ea232bdae12fa8da8491a91ae1db029990ef
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b0d0ea232bdae12fa8da8491a91ae1db029990ef" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/aweinstock314/kingr4_weinsa_distributedsystems_project2
[INFO] finished tweaking git repo https://github.com/aweinstock314/kingr4_weinsa_distributedsystems_project2
[INFO] tweaked toml for git repo https://github.com/aweinstock314/kingr4_weinsa_distributedsystems_project2 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/aweinstock314/kingr4_weinsa_distributedsystems_project2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b0d0ea232bdae12fa8da8491a91ae1db029990ef" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/alexcrichton/futures-rs`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_codegen v0.8.17
[INFO] [stderr]   Downloaded syn v0.9.2
[INFO] [stderr]   Downloaded post-expansion v0.1.0
[INFO] [stderr]   Downloaded quote v0.3.5
[INFO] [stderr]   Downloaded either v1.0.1
[INFO] [stderr]   Downloaded serde_derive v0.8.17
[INFO] [stderr]   Downloaded serde v0.8.18
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+b0d0ea232bdae12fa8da8491a91ae1db029990ef" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c8e3b878bb2ee6efe353b04f5d5eb319645076215be00b7f5ec537251e7ff891
[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" "c8e3b878bb2ee6efe353b04f5d5eb319645076215be00b7f5ec537251e7ff891", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c8e3b878bb2ee6efe353b04f5d5eb319645076215be00b7f5ec537251e7ff891", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c8e3b878bb2ee6efe353b04f5d5eb319645076215be00b7f5ec537251e7ff891", kill_on_drop: false }`
[INFO] [stdout] c8e3b878bb2ee6efe353b04f5d5eb319645076215be00b7f5ec537251e7ff891
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+b0d0ea232bdae12fa8da8491a91ae1db029990ef" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ad012eb072133467ab12e26de2258b87b2e4f18a67b64d127fbba1e293070a5d
[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" "ad012eb072133467ab12e26de2258b87b2e4f18a67b64d127fbba1e293070a5d", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.17
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]    Compiling semver v0.1.20
[INFO] [stderr]    Compiling unicode-xid v0.0.3
[INFO] [stderr]     Checking winapi v0.2.8
[INFO] [stderr]     Checking log v0.3.6
[INFO] [stderr]    Compiling quote v0.3.5
[INFO] [stderr]     Checking cfg-if v0.1.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking bitflags v0.4.0
[INFO] [stderr]     Checking slab v0.3.0
[INFO] [stderr]     Checking utf8-ranges v0.1.3
[INFO] [stderr]     Checking lazycell v0.4.0
[INFO] [stderr]     Checking serde v0.8.18
[INFO] [stderr]     Checking scoped-tls v0.1.0
[INFO] [stderr]     Checking num-traits v0.1.36
[INFO] [stderr]     Checking itoa v0.1.1
[INFO] [stderr]     Checking dtoa v0.2.2
[INFO] [stderr]     Checking crossbeam v0.2.10
[INFO] [stderr]     Checking either v1.0.1
[INFO] [stderr]     Checking byteorder v0.5.3
[INFO] [stderr]     Checking nom v1.2.4
[INFO] [stderr]     Checking argparse v0.2.1
[INFO] [stderr]     Checking futures v0.1.6 (https://github.com/alexcrichton/futures-rs#59e5c3ff)
[INFO] [stderr]    Compiling syn v0.9.2
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]    Compiling rustc_version v0.1.7
[INFO] [stderr]     Checking memchr v0.1.11
[INFO] [stderr]     Checking net2 v0.2.26
[INFO] [stderr]     Checking num_cpus v1.1.0
[INFO] [stderr]     Checking aho-corasick v0.5.3
[INFO] [stderr]    Compiling nix v0.7.0
[INFO] [stderr]     Checking thread-id v2.0.0
[INFO] [stderr]     Checking thread_local v0.2.7
[INFO] [stderr]     Checking regex v0.1.80
[INFO] [stderr]     Checking futures-cpupool v0.1.2 (https://github.com/alexcrichton/futures-rs#59e5c3ff)
[INFO] [stderr]    Compiling post-expansion v0.1.0
[INFO] [stderr]    Compiling serde_codegen_internals v0.10.0
[INFO] [stderr]    Compiling serde_codegen v0.8.17
[INFO] [stdout] error[E0463]: can't find crate for `syntax`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/serde_codegen-0.8.17/src/lib.rs:21:1
[INFO] [stdout]    |
[INFO] [stdout] 21 | extern crate syntax;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `serde_codegen`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "ad012eb072133467ab12e26de2258b87b2e4f18a67b64d127fbba1e293070a5d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad012eb072133467ab12e26de2258b87b2e4f18a67b64d127fbba1e293070a5d", kill_on_drop: false }`
[INFO] [stdout] ad012eb072133467ab12e26de2258b87b2e4f18a67b64d127fbba1e293070a5d