[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 master#cfbc6d4cf1acbac5c025acf8ed68929caa551df3 for pr-75494-beta
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faweinstock314%2Fkingr4_weinsa_distributedsystems_project2" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/aweinstock314/kingr4_weinsa_distributedsystems_project2 on toolchain cfbc6d4cf1acbac5c025acf8ed68929caa551df3
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cfbc6d4cf1acbac5c025acf8ed68929caa551df3" "read-manifest" "--manifest-path" "Cargo.toml", 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-0/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" "+cfbc6d4cf1acbac5c025acf8ed68929caa551df3" "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 post-expansion v0.1.0
[INFO] [stderr]   Downloaded serde_derive v0.8.17
[INFO] [stderr]   Downloaded nix v0.7.0
[INFO] [stderr]   Downloaded quote v0.3.5
[INFO] [stderr]   Downloaded serde_codegen v0.8.17
[INFO] [stderr]   Downloaded crossbeam v0.2.10
[INFO] [stderr]   Downloaded mio v0.6.1
[INFO] [stderr]   Downloaded syn v0.9.2
[INFO] [stderr]   Downloaded either v1.0.1
[INFO] [stderr]   Downloaded serde v0.8.18
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+cfbc6d4cf1acbac5c025acf8ed68929caa551df3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f5646dff7e8b61f9f7ae4987a11eb92f2572b1cb89f3b082abe6839fb0121009
[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" "f5646dff7e8b61f9f7ae4987a11eb92f2572b1cb89f3b082abe6839fb0121009", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f5646dff7e8b61f9f7ae4987a11eb92f2572b1cb89f3b082abe6839fb0121009", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5646dff7e8b61f9f7ae4987a11eb92f2572b1cb89f3b082abe6839fb0121009", kill_on_drop: false }`
[INFO] [stdout] f5646dff7e8b61f9f7ae4987a11eb92f2572b1cb89f3b082abe6839fb0121009
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+cfbc6d4cf1acbac5c025acf8ed68929caa551df3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 96b7396a3225bb4f42067b5edc963a70b12b3059415633c6440543e54a5760c6
[INFO] running `Command { std: "docker" "start" "-a" "96b7396a3225bb4f42067b5edc963a70b12b3059415633c6440543e54a5760c6", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.17
[INFO] [stderr]    Compiling semver v0.1.20
[INFO] [stderr]    Compiling quote v0.3.5
[INFO] [stderr]     Checking log v0.3.6
[INFO] [stderr]    Compiling unicode-xid v0.0.3
[INFO] [stderr]     Checking cfg-if v0.1.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking dtoa v0.2.2
[INFO] [stderr]     Checking num-traits v0.1.36
[INFO] [stderr]     Checking itoa v0.1.1
[INFO] [stderr]     Checking serde v0.8.18
[INFO] [stderr]     Checking either v1.0.1
[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]     Checking memchr v0.1.11
[INFO] [stderr]     Checking thread-id v2.0.0
[INFO] [stderr]     Checking net2 v0.2.26
[INFO] [stderr]     Checking num_cpus v1.1.0
[INFO] [stderr]    Compiling rustc_version v0.1.7
[INFO] [stderr]     Checking thread_local v0.2.7
[INFO] [stderr]     Checking aho-corasick v0.5.3
[INFO] [stderr]    Compiling nix v0.7.0
[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]     Checking env_logger v0.3.5
[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" "96b7396a3225bb4f42067b5edc963a70b12b3059415633c6440543e54a5760c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "96b7396a3225bb4f42067b5edc963a70b12b3059415633c6440543e54a5760c6", kill_on_drop: false }`
[INFO] [stdout] 96b7396a3225bb4f42067b5edc963a70b12b3059415633c6440543e54a5760c6
