[INFO] cloning repository https://github.com/BlueGhostGH/json
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/BlueGhostGH/json" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBlueGhostGH%2Fjson", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBlueGhostGH%2Fjson'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] eb65d152b10e239c84d115c9967b6523f2ba7662
[INFO] checking BlueGhostGH/json/eb65d152b10e239c84d115c9967b6523f2ba7662 against master#f609b7e0586f81fefb3523e3e17adf779ac416be for pr-129466-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBlueGhostGH%2Fjson" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/BlueGhostGH/json on toolchain f609b7e0586f81fefb3523e3e17adf779ac416be
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/BlueGhostGH/json
[INFO] finished tweaking git repo https://github.com/BlueGhostGH/json
[INFO] tweaked toml for git repo https://github.com/BlueGhostGH/json written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/BlueGhostGH/json already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 78a7d5dfe9effbaef18677e1df0cde040cf9d17405c7c3285b6948511f90a8e0
[INFO] running `Command { std: "docker" "start" "-a" "78a7d5dfe9effbaef18677e1df0cde040cf9d17405c7c3285b6948511f90a8e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "78a7d5dfe9effbaef18677e1df0cde040cf9d17405c7c3285b6948511f90a8e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "78a7d5dfe9effbaef18677e1df0cde040cf9d17405c7c3285b6948511f90a8e0", kill_on_drop: false }`
[INFO] [stdout] 78a7d5dfe9effbaef18677e1df0cde040cf9d17405c7c3285b6948511f90a8e0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 758e7376cd827f618578a2b425fa6b3a2840759c52de03575d4d87395b1e4abd
[INFO] running `Command { std: "docker" "start" "-a" "758e7376cd827f618578a2b425fa6b3a2840759c52de03575d4d87395b1e4abd", kill_on_drop: false }`
[INFO] [stderr]     Checking json v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the feature `const_io_structs` has been stable since 1.79.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:2:30
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(read_initializer, const_io_structs, trusted_len)]
[INFO] [stdout]   |                              ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `read_initializer`
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(read_initializer, const_io_structs, trusted_len)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `const_io_structs` has been stable since 1.79.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:2:30
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(read_initializer, const_io_structs, trusted_len)]
[INFO] [stdout]   |                              ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `read_initializer`
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(read_initializer, const_io_structs, trusted_len)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `initializer` found for type parameter `R` in the current scope
[INFO] [stdout]   --> src/input_reader/buffered_reader.rs:76:19
[INFO] [stdout]    |
[INFO] [stdout] 46 | impl<R: io::Read> BufferedReader<R> {
[INFO] [stdout]    |      - method `initializer` not found for this type parameter
[INFO] [stdout] ...
[INFO] [stdout] 76 |             inner.initializer().initialize(&mut buffer);
[INFO] [stdout]    |                   ^^^^^^^^^^^ method not found in `R`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `initializer` found for type parameter `R` in the current scope
[INFO] [stdout]   --> src/input_reader/buffered_reader.rs:76:19
[INFO] [stdout]    |
[INFO] [stdout] 46 | impl<R: io::Read> BufferedReader<R> {
[INFO] [stdout]    |      - method `initializer` not found for this type parameter
[INFO] [stdout] ...
[INFO] [stdout] 76 |             inner.initializer().initialize(&mut buffer);
[INFO] [stdout]    |                   ^^^^^^^^^^^ method not found in `R`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0599, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `json` (lib) due to 3 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to 2 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0599, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `json` (lib test) due to 3 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "758e7376cd827f618578a2b425fa6b3a2840759c52de03575d4d87395b1e4abd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "758e7376cd827f618578a2b425fa6b3a2840759c52de03575d4d87395b1e4abd", kill_on_drop: false }`
[INFO] [stdout] 758e7376cd827f618578a2b425fa6b3a2840759c52de03575d4d87395b1e4abd