[INFO] fetching crate rust_json_parser 1.0.1... [INFO] testing rust_json_parser-1.0.1 against 1.100.0-beta.1+cargoflags=--release for beta-release-1.100-3 [INFO] extracting crate rust_json_parser 1.0.1 into /workspace/builds/worker-2-tc2/source [INFO] started tweaking crates.io crate rust_json_parser 1.0.1 [INFO] finished tweaking crates.io crate rust_json_parser 1.0.1 [INFO] tweaked toml for crates.io crate rust_json_parser 1.0.1 written to /workspace/builds/worker-2-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate rust_json_parser 1.0.1 on toolchain 1.100.0-beta.1 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 11 packages to highest compatible versions [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }` [INFO] [stdout] 656cd83f6d71c8aff4ae227c91806730141e86dcce4a9546a3ac4868e5329e8d [INFO] running `Command { std: "docker" "start" "656cd83f6d71c8aff4ae227c91806730141e86dcce4a9546a3ac4868e5329e8d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "656cd83f6d71c8aff4ae227c91806730141e86dcce4a9546a3ac4868e5329e8d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "656cd83f6d71c8aff4ae227c91806730141e86dcce4a9546a3ac4868e5329e8d" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "656cd83f6d71c8aff4ae227c91806730141e86dcce4a9546a3ac4868e5329e8d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "656cd83f6d71c8aff4ae227c91806730141e86dcce4a9546a3ac4868e5329e8d" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }` [INFO] [stderr] Compiling serde_core v1.0.229 [INFO] [stderr] Compiling zmij v1.0.23 [INFO] [stderr] Compiling serde_json v1.0.154 [INFO] [stderr] Compiling itoa v1.0.18 [INFO] [stderr] Compiling memchr v2.8.3 [INFO] [stderr] Compiling rust_json_parser v1.0.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `Value` [INFO] [stdout] --> src/lib.rs:1:39 [INFO] [stdout] | [INFO] [stdout] 1 | use serde_json::{from_str, to_string, Value}; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0277]: the trait bound `!: serde::Serialize` is not satisfied [INFO] [stdout] --> src/lib.rs:8:28 [INFO] [stdout] | [INFO] [stdout] 8 | let result = to_string(&parsed_json).map_err(|e| format!("Failed to serialize JSON: {}", e))?; [INFO] [stdout] | --------- ^^^^^^^^^^^^ the trait `serde_core::ser::Serialize` is not implemented for `!` [INFO] [stdout] | | [INFO] [stdout] | required by a bound introduced by this call [INFO] [stdout] | [INFO] [stdout] = note: for local types consider adding `#[derive(serde::Serialize)]` to your `!` type [INFO] [stdout] = note: for types from other crates check whether the crate offers a `serde` feature flag [INFO] [stdout] = help: the following other types implement trait `serde_core::ser::Serialize`: [INFO] [stdout] &'a T [INFO] [stdout] &'a mut T [INFO] [stdout] () [INFO] [stdout] (T,) [INFO] [stdout] (T0, T1) [INFO] [stdout] (T0, T1, T2) [INFO] [stdout] (T0, T1, T2, T3) [INFO] [stdout] (T0, T1, T2, T3, T4) [INFO] [stdout] and 128 others [INFO] [stdout] = note: this error might have been caused by changes to Rust's type-inference algorithm (see issue #148922 for more information) [INFO] [stdout] = help: you might have intended to use the type `()` here instead [INFO] [stdout] note: required by a bound in `serde_json::to_string` [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/serde_json-1.0.154/src/ser.rs:2247:17 [INFO] [stdout] | [INFO] [stdout] 2245 | pub fn to_string(value: &T) -> Result [INFO] [stdout] 2246 | where [INFO] [stdout] 2247 | T: ?Sized + Serialize, [INFO] [stdout] | ^^^^^^^^^ required by this bound in `to_string` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0277]: the trait bound `!: serde::Deserialize<'de>` is not satisfied [INFO] [stdout] --> src/lib.rs:6:23 [INFO] [stdout] | [INFO] [stdout] 6 | let parsed_json = from_str(json_str).map_err(|e| format!("Failed to parse JSON: {}", e))?; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ the trait `serde_core::de::Deserialize<'_>` is not implemented for `!` [INFO] [stdout] | [INFO] [stdout] = note: for local types consider adding `#[derive(serde::Deserialize)]` to your `!` type [INFO] [stdout] = note: for types from other crates check whether the crate offers a `serde` feature flag [INFO] [stdout] = help: the following other types implement trait `serde_core::de::Deserialize<'de>`: [INFO] [stdout] &'a Path [INFO] [stdout] &'a [u8] [INFO] [stdout] &'a str [INFO] [stdout] () [INFO] [stdout] (T,) [INFO] [stdout] (T0, T1) [INFO] [stdout] (T0, T1, T2) [INFO] [stdout] (T0, T1, T2, T3) [INFO] [stdout] and 140 others [INFO] [stdout] = note: this error might have been caused by changes to Rust's type-inference algorithm (see issue #148922 for more information) [INFO] [stdout] = help: you might have intended to use the type `()` here instead [INFO] [stdout] note: required by a bound in `serde_json::from_str` [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/serde_json-1.0.154/src/de.rs:2711:8 [INFO] [stdout] | [INFO] [stdout] 2709 | pub fn from_str<'a, T>(s: &'a str) -> Result [INFO] [stdout] 2710 | where [INFO] [stdout] 2711 | T: de::Deserialize<'a>, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ required by this bound in `from_str` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0277`. [INFO] [stdout] [INFO] [stderr] error: could not compile `rust_json_parser` (lib) due to 2 previous errors; 1 warning emitted [INFO] running `Command { std: "docker" "inspect" "656cd83f6d71c8aff4ae227c91806730141e86dcce4a9546a3ac4868e5329e8d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "656cd83f6d71c8aff4ae227c91806730141e86dcce4a9546a3ac4868e5329e8d", kill_on_drop: false }` [INFO] [stdout] 656cd83f6d71c8aff4ae227c91806730141e86dcce4a9546a3ac4868e5329e8d