[INFO] cloning repository https://github.com/ZakKurasov/rust-rpc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ZakKurasov/rust-rpc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FZakKurasov%2Frust-rpc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FZakKurasov%2Frust-rpc'...
[INFO] updating cached repository https://github.com/ZakKurasov/rust-rpc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] updating cached repository https://github.com/ZakKurasov/rust-rpc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] updating cached repository https://github.com/ZakKurasov/rust-rpc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] updating cached repository https://github.com/ZakKurasov/rust-rpc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] updating cached repository https://github.com/ZakKurasov/rust-rpc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] updating cached repository https://github.com/ZakKurasov/rust-rpc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] updating cached repository https://github.com/ZakKurasov/rust-rpc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] updating cached repository https://github.com/ZakKurasov/rust-rpc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] updating cached repository https://github.com/ZakKurasov/rust-rpc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] updating cached repository https://github.com/ZakKurasov/rust-rpc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] updating cached repository https://github.com/ZakKurasov/rust-rpc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] updating cached repository https://github.com/ZakKurasov/rust-rpc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] updating cached repository https://github.com/ZakKurasov/rust-rpc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] updating cached repository https://github.com/ZakKurasov/rust-rpc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 14a35a8e754c41dd46a107c7c0736c8a3b01587c
[INFO] checking ZakKurasov/rust-rpc against try#7b91cbfbcf4c73b95e666e0f8972d2f7262ce27e for pr-99880
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FZakKurasov%2Frust-rpc" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ZakKurasov/rust-rpc on toolchain 7b91cbfbcf4c73b95e666e0f8972d2f7262ce27e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b91cbfbcf4c73b95e666e0f8972d2f7262ce27e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ZakKurasov/rust-rpc
[INFO] finished tweaking git repo https://github.com/ZakKurasov/rust-rpc
[INFO] tweaked toml for git repo https://github.com/ZakKurasov/rust-rpc written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/ZakKurasov/rust-rpc already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b91cbfbcf4c73b95e666e0f8972d2f7262ce27e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:ecb52c4cf6672b83cc996368a05b4a059042425f2b6ba9cd23a06cdead5d8d70" "/opt/rustwide/cargo-home/bin/cargo" "+7b91cbfbcf4c73b95e666e0f8972d2f7262ce27e" "metadata" "--no-deps" "--format-version=1", 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] 00a7415bc08093760b03b9a3e288683df35b2a5ba035089d6050477d54f95725
[INFO] running `Command { std: "docker" "start" "-a" "00a7415bc08093760b03b9a3e288683df35b2a5ba035089d6050477d54f95725", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "00a7415bc08093760b03b9a3e288683df35b2a5ba035089d6050477d54f95725", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "00a7415bc08093760b03b9a3e288683df35b2a5ba035089d6050477d54f95725", kill_on_drop: false }`
[INFO] [stdout] 00a7415bc08093760b03b9a3e288683df35b2a5ba035089d6050477d54f95725
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:ecb52c4cf6672b83cc996368a05b4a059042425f2b6ba9cd23a06cdead5d8d70" "/opt/rustwide/cargo-home/bin/cargo" "+7b91cbfbcf4c73b95e666e0f8972d2f7262ce27e" "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] 7a5755a624e36a752878e25d2308b1a93e31181496d5055b27ac2a4bd7cc8785
[INFO] running `Command { std: "docker" "start" "-a" "7a5755a624e36a752878e25d2308b1a93e31181496d5055b27ac2a4bd7cc8785", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling syn v1.0.80
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]     Checking quote v1.0.10
[INFO] [stdout] error[E0277]: the trait bound `proc_macro2::TokenStream: From<proc_macro::TokenStream>` is not satisfied
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/syn-1.0.80/src/buffer.rs:106:27
[INFO] [stdout]     |
[INFO] [stdout] 106 |         Self::new2(stream.into())
[INFO] [stdout]     |                           ^^^^ the trait `From<proc_macro::TokenStream>` is not implemented for `proc_macro2::TokenStream`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `From<proc_macro2::TokenTree>` is implemented for `proc_macro2::TokenStream`
[INFO] [stdout]     = note: required because of the requirements on the impl of `Into<proc_macro2::TokenStream>` for `proc_macro::TokenStream`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `proc_macro2::TokenStream: From<proc_macro::TokenStream>` is not satisfied
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/syn-1.0.80/src/buffer.rs:106:27
[INFO] [stdout]     |
[INFO] [stdout] 106 |         Self::new2(stream.into())
[INFO] [stdout]     |                           ^^^^ the trait `From<proc_macro::TokenStream>` is not implemented for `proc_macro2::TokenStream`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `From<proc_macro2::TokenTree>` is implemented for `proc_macro2::TokenStream`
[INFO] [stdout]     = note: required because of the requirements on the impl of `Into<proc_macro2::TokenStream>` for `proc_macro::TokenStream`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `proc_macro2::TokenStream: From<proc_macro::TokenStream>` is not satisfied
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/syn-1.0.80/src/parse.rs:1161:21
[INFO] [stdout]      |
[INFO] [stdout] 1161 |         self.parse2(proc_macro2::TokenStream::from(tokens))
[INFO] [stdout]      |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `From<proc_macro::TokenStream>` is not implemented for `proc_macro2::TokenStream`
[INFO] [stdout]      |
[INFO] [stdout]      = help: the trait `From<proc_macro2::TokenTree>` is implemented for `proc_macro2::TokenStream`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `syn` due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0277]: the trait bound `proc_macro2::TokenStream: From<proc_macro::TokenStream>` is not satisfied
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/syn-1.0.80/src/parse.rs:1161:21
[INFO] [stdout]      |
[INFO] [stdout] 1161 |         self.parse2(proc_macro2::TokenStream::from(tokens))
[INFO] [stdout]      |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `From<proc_macro::TokenStream>` is not implemented for `proc_macro2::TokenStream`
[INFO] [stdout]      |
[INFO] [stdout]      = help: the trait `From<proc_macro2::TokenTree>` is implemented for `proc_macro2::TokenStream`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `syn` due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "7a5755a624e36a752878e25d2308b1a93e31181496d5055b27ac2a4bd7cc8785", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a5755a624e36a752878e25d2308b1a93e31181496d5055b27ac2a4bd7cc8785", kill_on_drop: false }`
[INFO] [stdout] 7a5755a624e36a752878e25d2308b1a93e31181496d5055b27ac2a4bd7cc8785