[INFO] fetching crate weakjson 0.0.7...
[INFO] checking weakjson-0.0.7 against master#af4a5a13a15fa0c60e06321077ef452f769b42fd for pr-122960-4
[INFO] extracting crate weakjson 0.0.7 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate weakjson 0.0.7 on toolchain af4a5a13a15fa0c60e06321077ef452f769b42fd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate weakjson 0.0.7
[INFO] finished tweaking crates.io crate weakjson 0.0.7
[INFO] tweaked toml for crates.io crate weakjson 0.0.7 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 2 packages
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9c86219d50d0efad0936eaa3806ccc4a506466da8a5898e084aacfbf8ad3c521
[INFO] running `Command { std: "docker" "start" "-a" "9c86219d50d0efad0936eaa3806ccc4a506466da8a5898e084aacfbf8ad3c521", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9c86219d50d0efad0936eaa3806ccc4a506466da8a5898e084aacfbf8ad3c521", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c86219d50d0efad0936eaa3806ccc4a506466da8a5898e084aacfbf8ad3c521", kill_on_drop: false }`
[INFO] [stdout] 9c86219d50d0efad0936eaa3806ccc4a506466da8a5898e084aacfbf8ad3c521
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=allow" "-e" "RUSTDOCFLAGS=--cap-lints=allow" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9e0f50bc9d904f2ef763dd7a77884f3e874125f6efc90eff07592e72e53fc395
[INFO] running `Command { std: "docker" "start" "-a" "9e0f50bc9d904f2ef763dd7a77884f3e874125f6efc90eff07592e72e53fc395", kill_on_drop: false }`
[INFO] [stderr]     Checking weakjson v0.0.7 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0573]: expected type, found variant `String`
[INFO] [stdout]   --> src/weak_tests.rs:11:24
[INFO] [stdout]    |
[INFO] [stdout] 11 | fn mk_object(items: &[(String, Json)]) -> Json {
[INFO] [stdout]    |                        ^^^^^^ not a type
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct instead
[INFO] [stdout]    |
[INFO] [stdout] 1  + use std::string::String;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'libstd_sys_internals': used by the panic! macro
[INFO] [stdout]    --> src/standart_tests.rs:518:21
[INFO] [stdout]     |
[INFO] [stdout] 518 |     #[derive(Debug, RustcDecodable)]
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: add `#![feature(libstd_sys_internals)]` to the crate attributes to enable
[INFO] [stdout]     = note: this compiler was built on 2024-03-29; consider upgrading it if it is out of date
[INFO] [stdout]     = note: this error originates in the derive macro `RustcDecodable` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0573, E0658.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0573`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `weakjson` (lib test) due to 3 previous errors; 5 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "9e0f50bc9d904f2ef763dd7a77884f3e874125f6efc90eff07592e72e53fc395", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e0f50bc9d904f2ef763dd7a77884f3e874125f6efc90eff07592e72e53fc395", kill_on_drop: false }`
[INFO] [stdout] 9e0f50bc9d904f2ef763dd7a77884f3e874125f6efc90eff07592e72e53fc395