[INFO] cloning repository https://github.com/jdmichaud/wgrep2
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jdmichaud/wgrep2" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjdmichaud%2Fwgrep2"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjdmichaud%2Fwgrep2'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 8ae922fd86e3cff33d59d17ea5ff82553b70a45b
[INFO] checking jdmichaud/wgrep2 against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjdmichaud%2Fwgrep2" "/workspace/builds/worker-6/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jdmichaud/wgrep2 on toolchain 45d050cde277b22a755847338f2acc2c7b834141
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/jdmichaud/wgrep2
[INFO] finished tweaking git repo https://github.com/jdmichaud/wgrep2
[INFO] tweaked toml for git repo https://github.com/jdmichaud/wgrep2 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/jdmichaud/wgrep2 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 25d4f6e3e15cc1bc9a1a3d4f7dbd3ed736e305656f3085898c071ddd6f78f961
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "25d4f6e3e15cc1bc9a1a3d4f7dbd3ed736e305656f3085898c071ddd6f78f961"`
[INFO] [stderr]     Checking serde v0.9.11
[INFO] [stderr]    Compiling syn v0.11.9
[INFO] [stderr]    Compiling serde_codegen_internals v0.14.2
[INFO] [stderr]    Compiling serde_derive v0.9.12
[INFO] [stderr]     Checking serde_json v0.9.9
[INFO] [stderr]     Checking wgrep v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: comparison operators cannot be chained
[INFO] [stderr]   --> src/wglib/server.rs:22:35
[INFO] [stderr]    |
[INFO] [stderr] 22 |     let res = serde_json::from_str<Request>(buffer);
[INFO] [stderr]    |                                   ^       ^
[INFO] [stderr]    |
[INFO] [stderr] help: use `::<...>` instead of `<...>` to specify type arguments
[INFO] [stderr]    |
[INFO] [stderr] 22 |     let res = serde_json::from_str::<Request>(buffer);
[INFO] [stderr]    |                                   ^^
[INFO] [stderr] 
[INFO] [stderr] error: comparison operators cannot be chained
[INFO] [stderr]   --> src/wglib/server.rs:26:33
[INFO] [stderr]    |
[INFO] [stderr] 26 |       res = serde_json::from_str<Request>(buffer);
[INFO] [stderr]    |                                 ^       ^
[INFO] [stderr]    |
[INFO] [stderr] help: use `::<...>` instead of `<...>` to specify type arguments
[INFO] [stderr]    |
[INFO] [stderr] 26 |       res = serde_json::from_str::<Request>(buffer);
[INFO] [stderr]    |                                 ^^
[INFO] [stderr] 
[INFO] [stderr] error[E0463]: can't find crate for `serde`
[INFO] [stderr]  --> src/wglib/error.rs:3:21
[INFO] [stderr]   |
[INFO] [stderr] 3 | #[derive(Serialize, Deserialize, Debug)]
[INFO] [stderr]   |                     ^^^^^^^^^^^ can't find crate
[INFO] [stderr]   |
[INFO] [stderr]   = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0463`.
[INFO] [stderr] error: could not compile `wgrep`.
[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: comparison operators cannot be chained
[INFO] [stderr]   --> src/wglib/server.rs:22:35
[INFO] [stderr]    |
[INFO] [stderr] 22 |     let res = serde_json::from_str<Request>(buffer);
[INFO] [stderr]    |                                   ^       ^
[INFO] [stderr]    |
[INFO] [stderr] help: use `::<...>` instead of `<...>` to specify type arguments
[INFO] [stderr]    |
[INFO] [stderr] 22 |     let res = serde_json::from_str::<Request>(buffer);
[INFO] [stderr]    |                                   ^^
[INFO] [stderr] 
[INFO] [stderr] error: comparison operators cannot be chained
[INFO] [stderr]   --> src/wglib/server.rs:26:33
[INFO] [stderr]    |
[INFO] [stderr] 26 |       res = serde_json::from_str<Request>(buffer);
[INFO] [stderr]    |                                 ^       ^
[INFO] [stderr]    |
[INFO] [stderr] help: use `::<...>` instead of `<...>` to specify type arguments
[INFO] [stderr]    |
[INFO] [stderr] 26 |       res = serde_json::from_str::<Request>(buffer);
[INFO] [stderr]    |                                 ^^
[INFO] [stderr] 
[INFO] [stderr] error[E0463]: can't find crate for `serde`
[INFO] [stderr]  --> src/wglib/error.rs:3:21
[INFO] [stderr]   |
[INFO] [stderr] 3 | #[derive(Serialize, Deserialize, Debug)]
[INFO] [stderr]   |                     ^^^^^^^^^^^ can't find crate
[INFO] [stderr]   |
[INFO] [stderr]   = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0463`.
[INFO] [stderr] error: could not compile `wgrep`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "25d4f6e3e15cc1bc9a1a3d4f7dbd3ed736e305656f3085898c071ddd6f78f961"`
[INFO] running `"docker" "rm" "-f" "25d4f6e3e15cc1bc9a1a3d4f7dbd3ed736e305656f3085898c071ddd6f78f961"`
[INFO] [stdout] 25d4f6e3e15cc1bc9a1a3d4f7dbd3ed736e305656f3085898c071ddd6f78f961