[INFO] fetching crate json-tcp-server 0.0.0...
[INFO] testing json-tcp-server-0.0.0 against try#8262275854dc0e5381c9d42d56257d94932c5a87 for pr-90799
[INFO] extracting crate json-tcp-server 0.0.0 into /workspace/builds/worker-92/source
[INFO] validating manifest of crates.io crate json-tcp-server 0.0.0 on toolchain 8262275854dc0e5381c9d42d56257d94932c5a87
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate json-tcp-server 0.0.0
[INFO] finished tweaking crates.io crate json-tcp-server 0.0.0
[INFO] tweaked toml for crates.io crate json-tcp-server 0.0.0 written to /workspace/builds/worker-92/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-92/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-92/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] aa17d908acb566e24abfab0ec5e563fc66e7bd5f7756c1810c8bddb4ba6e4ae9
[INFO] running `Command { std: "docker" "start" "-a" "aa17d908acb566e24abfab0ec5e563fc66e7bd5f7756c1810c8bddb4ba6e4ae9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aa17d908acb566e24abfab0ec5e563fc66e7bd5f7756c1810c8bddb4ba6e4ae9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa17d908acb566e24abfab0ec5e563fc66e7bd5f7756c1810c8bddb4ba6e4ae9", kill_on_drop: false }`
[INFO] [stdout] aa17d908acb566e24abfab0ec5e563fc66e7bd5f7756c1810c8bddb4ba6e4ae9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-92/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-92/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7c70b953c44167929b54ab0aced7482e69cf0e0299bbcd85b1e8704c2bae1d63
[INFO] running `Command { std: "docker" "start" "-a" "7c70b953c44167929b54ab0aced7482e69cf0e0299bbcd85b1e8704c2bae1d63", kill_on_drop: false }`
[INFO] [stderr]    Compiling json-tcp-server v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.07s
[INFO] running `Command { std: "docker" "inspect" "7c70b953c44167929b54ab0aced7482e69cf0e0299bbcd85b1e8704c2bae1d63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c70b953c44167929b54ab0aced7482e69cf0e0299bbcd85b1e8704c2bae1d63", kill_on_drop: false }`
[INFO] [stdout] 7c70b953c44167929b54ab0aced7482e69cf0e0299bbcd85b1e8704c2bae1d63
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-92/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-92/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f73269b5d8f4053fed73dc2495ca76f7cf637e6b1955990835edfb53cb18995d
[INFO] running `Command { std: "docker" "start" "-a" "f73269b5d8f4053fed73dc2495ca76f7cf637e6b1955990835edfb53cb18995d", kill_on_drop: false }`
[INFO] [stderr]    Compiling json-tcp-server v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.47s
[INFO] running `Command { std: "docker" "inspect" "f73269b5d8f4053fed73dc2495ca76f7cf637e6b1955990835edfb53cb18995d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f73269b5d8f4053fed73dc2495ca76f7cf637e6b1955990835edfb53cb18995d", kill_on_drop: false }`
[INFO] [stdout] f73269b5d8f4053fed73dc2495ca76f7cf637e6b1955990835edfb53cb18995d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-92/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-92/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0b7f3d479a4bd5a3e1846a27d8b8ed99de9edc0dea435d31f3afe67000b3401f
[INFO] running `Command { std: "docker" "start" "-a" "0b7f3d479a4bd5a3e1846a27d8b8ed99de9edc0dea435d31f3afe67000b3401f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.25s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/json_tcp_server-9b6996260c5d6eb1)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests json-tcp-server
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "0b7f3d479a4bd5a3e1846a27d8b8ed99de9edc0dea435d31f3afe67000b3401f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b7f3d479a4bd5a3e1846a27d8b8ed99de9edc0dea435d31f3afe67000b3401f", kill_on_drop: false }`
[INFO] [stdout] 0b7f3d479a4bd5a3e1846a27d8b8ed99de9edc0dea435d31f3afe67000b3401f