Sep 19 14:16:31.104 INFO checking brennie/chat against master#ff6422d7a392acfc8af28994d65af2bbaecea4f6 for pr-54346
Sep 19 14:16:31.104 INFO running: cargo +ff6422d7a392acfc8af28994d65af2bbaecea4f6-alt check --frozen --all --all-targets
Sep 19 14:16:31.104 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-6/pr-54346/master#ff6422d7a392acfc8af28994d65af2bbaecea4f6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54346/worker-6/master#ff6422d7a392acfc8af28994d65af2bbaecea4f6:/target:rw,Z" "-v" "/home/ec2-user/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/home/ec2-user/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "CMD=cargo +ff6422d7a392acfc8af28994d65af2bbaecea4f6-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 19 14:16:31.473 INFO blam! 54055c4df43dfb3206ce02624bb710936243fed198aaccd5cad64d4be08633fd
Sep 19 14:16:31.474 INFO running `"docker" "start" "-a" "54055c4df43dfb3206ce02624bb710936243fed198aaccd5cad64d4be08633fd"`
Sep 19 14:16:33.062 INFO kablam! usermod: no changes
Sep 19 14:16:33.161 INFO kablam! error: failed to load source for a dependency on `tokio-serde-json`
Sep 19 14:16:33.161 INFO kablam! 
Sep 19 14:16:33.161 INFO kablam! Caused by:
Sep 19 14:16:33.161 INFO kablam!   Unable to update https://github.com/carllerche/tokio-serde-json#26476c7b
Sep 19 14:16:33.161 INFO kablam! 
Sep 19 14:16:33.161 INFO kablam! Caused by:
Sep 19 14:16:33.161 INFO kablam!   failed to open: /cargo-home/git/.cargo-lock-git
Sep 19 14:16:33.161 INFO kablam! 
Sep 19 14:16:33.161 INFO kablam! Caused by:
Sep 19 14:16:33.161 INFO kablam!   Read-only file system (os error 30)
Sep 19 14:16:33.179 INFO kablam! su: No module specific data is present
Sep 19 14:16:34.122 INFO running `"docker" "rm" "-f" "54055c4df43dfb3206ce02624bb710936243fed198aaccd5cad64d4be08633fd"`
Sep 19 14:16:34.479 INFO blam! 54055c4df43dfb3206ce02624bb710936243fed198aaccd5cad64d4be08633fd