[INFO] fetching crate msgpackin 0.0.4... [INFO] testing msgpackin-0.0.4 against beta-2025-10-28 for beta-1.92-2 [INFO] extracting crate msgpackin 0.0.4 into /workspace/builds/worker-4-tc2/source [INFO] started tweaking crates.io crate msgpackin 0.0.4 [INFO] finished tweaking crates.io crate msgpackin 0.0.4 [INFO] tweaked toml for crates.io crate msgpackin 0.0.4 written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate msgpackin 0.0.4 on toolchain beta-2025-10-28 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "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" "+beta-2025-10-28" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 22 packages to latest compatible versions [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] fc90275ab72e8453fa6738e85068a3b83489b487f1956ffc23425f9b9ef2ff28 [INFO] running `Command { std: "docker" "start" "-a" "fc90275ab72e8453fa6738e85068a3b83489b487f1956ffc23425f9b9ef2ff28", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "fc90275ab72e8453fa6738e85068a3b83489b487f1956ffc23425f9b9ef2ff28", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fc90275ab72e8453fa6738e85068a3b83489b487f1956ffc23425f9b9ef2ff28", kill_on_drop: false }` [INFO] [stdout] fc90275ab72e8453fa6738e85068a3b83489b487f1956ffc23425f9b9ef2ff28 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 760e9be10d06d694c7e21f61e1dccf944fe8c813d99bac07e36f6ae618e5186c [INFO] running `Command { std: "docker" "start" "-a" "760e9be10d06d694c7e21f61e1dccf944fe8c813d99bac07e36f6ae618e5186c", kill_on_drop: false }` [INFO] [stderr] Compiling msgpackin_core v0.0.4 [INFO] [stderr] Compiling msgpackin v0.0.4 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `self::core::iter` [INFO] [stdout] --> src/lib.rs:153:13 [INFO] [stdout] | [INFO] [stdout] 153 | pub use self::core::iter; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: the lint level is defined here [INFO] [stdout] --> src/lib.rs:132:9 [INFO] [stdout] | [INFO] [stdout] 132 | #![deny(warnings)] [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] = note: `#[warn(unused_imports)]` implied by `#[warn(warnings)]` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `Error` is never used [INFO] [stdout] --> src/lib.rs:185:15 [INFO] [stdout] | [INFO] [stdout] 185 | pub trait Error: fmt::Debug + fmt::Display { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` implied by `#[warn(warnings)]` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/value.rs:116:19 [INFO] [stdout] | [INFO] [stdout] 116 | pub fn as_ref(&self) -> Utf8StrRef { [INFO] [stdout] | ^^^^^ ^^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` implied by `#[warn(warnings)]` [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 116 | pub fn as_ref(&self) -> Utf8StrRef<'_> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/value.rs:427:19 [INFO] [stdout] | [INFO] [stdout] 427 | pub fn as_ref(&self) -> ValueRef { [INFO] [stdout] | ^^^^^ ^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 427 | pub fn as_ref(&self) -> ValueRef<'_> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.59s [INFO] running `Command { std: "docker" "inspect" "760e9be10d06d694c7e21f61e1dccf944fe8c813d99bac07e36f6ae618e5186c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "760e9be10d06d694c7e21f61e1dccf944fe8c813d99bac07e36f6ae618e5186c", kill_on_drop: false }` [INFO] [stdout] 760e9be10d06d694c7e21f61e1dccf944fe8c813d99bac07e36f6ae618e5186c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 18fe87d40d95d8b114731e369e702dc30b9498c90bbbea18f451b52d496cb5b3 [INFO] running `Command { std: "docker" "start" "-a" "18fe87d40d95d8b114731e369e702dc30b9498c90bbbea18f451b52d496cb5b3", kill_on_drop: false }` [INFO] [stderr] Compiling serde_core v1.0.228 [INFO] [stderr] Compiling serde v1.0.228 [INFO] [stdout] warning: unused import: `self::core::iter` [INFO] [stdout] --> src/lib.rs:153:13 [INFO] [stdout] | [INFO] [stdout] 153 | pub use self::core::iter; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: the lint level is defined here [INFO] [stdout] --> src/lib.rs:132:9 [INFO] [stdout] | [INFO] [stdout] 132 | #![deny(warnings)] [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] = note: `#[warn(unused_imports)]` implied by `#[warn(warnings)]` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `Error` is never used [INFO] [stdout] --> src/lib.rs:185:15 [INFO] [stdout] | [INFO] [stdout] 185 | pub trait Error: fmt::Debug + fmt::Display { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` implied by `#[warn(warnings)]` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/value.rs:116:19 [INFO] [stdout] | [INFO] [stdout] 116 | pub fn as_ref(&self) -> Utf8StrRef { [INFO] [stdout] | ^^^^^ ^^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` implied by `#[warn(warnings)]` [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 116 | pub fn as_ref(&self) -> Utf8StrRef<'_> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling syn v2.0.108 [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/value.rs:427:19 [INFO] [stdout] | [INFO] [stdout] 427 | pub fn as_ref(&self) -> ValueRef { [INFO] [stdout] | ^^^^^ ^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 427 | pub fn as_ref(&self) -> ValueRef<'_> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling futures-macro v0.3.31 [INFO] [stderr] Compiling serde_derive v1.0.228 [INFO] [stderr] Compiling futures-util v0.3.31 [INFO] [stderr] Compiling futures-executor v0.3.31 [INFO] [stderr] Compiling futures v0.3.31 [INFO] [stderr] Compiling msgpackin v0.0.4 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `self::core::iter` [INFO] [stdout] --> src/lib.rs:153:13 [INFO] [stdout] | [INFO] [stdout] 153 | pub use self::core::iter; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: the lint level is defined here [INFO] [stdout] --> src/lib.rs:132:9 [INFO] [stdout] | [INFO] [stdout] 132 | #![deny(warnings)] [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] = note: `#[warn(unused_imports)]` implied by `#[warn(warnings)]` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `Error` is never used [INFO] [stdout] --> src/lib.rs:185:15 [INFO] [stdout] | [INFO] [stdout] 185 | pub trait Error: fmt::Debug + fmt::Display { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` implied by `#[warn(warnings)]` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/value.rs:116:19 [INFO] [stdout] | [INFO] [stdout] 116 | pub fn as_ref(&self) -> Utf8StrRef { [INFO] [stdout] | ^^^^^ ^^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` implied by `#[warn(warnings)]` [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 116 | pub fn as_ref(&self) -> Utf8StrRef<'_> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/value.rs:427:19 [INFO] [stdout] | [INFO] [stdout] 427 | pub fn as_ref(&self) -> ValueRef { [INFO] [stdout] | ^^^^^ ^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 427 | pub fn as_ref(&self) -> ValueRef<'_> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 9.25s [INFO] running `Command { std: "docker" "inspect" "18fe87d40d95d8b114731e369e702dc30b9498c90bbbea18f451b52d496cb5b3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "18fe87d40d95d8b114731e369e702dc30b9498c90bbbea18f451b52d496cb5b3", kill_on_drop: false }` [INFO] [stdout] 18fe87d40d95d8b114731e369e702dc30b9498c90bbbea18f451b52d496cb5b3 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] fec819d190c6e82959c388b4f7b26cb499ec0a10537663bbe41354d7875ce39e [INFO] running `Command { std: "docker" "start" "-a" "fec819d190c6e82959c388b4f7b26cb499ec0a10537663bbe41354d7875ce39e", kill_on_drop: false }` [INFO] [stderr] warning: unused import: `self::core::iter` [INFO] [stderr] --> src/lib.rs:153:13 [INFO] [stderr] | [INFO] [stderr] 153 | pub use self::core::iter; [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] note: the lint level is defined here [INFO] [stderr] --> src/lib.rs:132:9 [INFO] [stderr] | [INFO] [stderr] 132 | #![deny(warnings)] [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] = note: `#[warn(unused_imports)]` implied by `#[warn(warnings)]` [INFO] [stderr] [INFO] [stderr] warning: trait `Error` is never used [INFO] [stderr] --> src/lib.rs:185:15 [INFO] [stderr] | [INFO] [stderr] 185 | pub trait Error: fmt::Debug + fmt::Display { [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` implied by `#[warn(warnings)]` [INFO] [stderr] [INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stderr] --> src/value.rs:116:19 [INFO] [stderr] | [INFO] [stderr] 116 | pub fn as_ref(&self) -> Utf8StrRef { [INFO] [stderr] | ^^^^^ ^^^^^^^^^^ the same lifetime is hidden here [INFO] [stderr] | | [INFO] [stderr] | the lifetime is elided here [INFO] [stderr] | [INFO] [stderr] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stderr] = note: `#[warn(mismatched_lifetime_syntaxes)]` implied by `#[warn(warnings)]` [INFO] [stderr] help: use `'_` for type paths [INFO] [stderr] | [INFO] [stderr] 116 | pub fn as_ref(&self) -> Utf8StrRef<'_> { [INFO] [stderr] | ++++ [INFO] [stderr] [INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stderr] --> src/value.rs:427:19 [INFO] [stderr] | [INFO] [stderr] 427 | pub fn as_ref(&self) -> ValueRef { [INFO] [stderr] | ^^^^^ ^^^^^^^^ the same lifetime is hidden here [INFO] [stderr] | | [INFO] [stderr] | the lifetime is elided here [INFO] [stderr] | [INFO] [stderr] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stderr] help: use `'_` for type paths [INFO] [stderr] | [INFO] [stderr] 427 | pub fn as_ref(&self) -> ValueRef<'_> { [INFO] [stderr] | ++++ [INFO] [stderr] [INFO] [stderr] warning: `msgpackin` (lib) generated 4 warnings (run `cargo fix --lib -p msgpackin` to apply 3 suggestions) [INFO] [stderr] warning: `msgpackin` (lib test) generated 4 warnings (4 duplicates) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/msgpackin-919f40a2c5671e8b) [INFO] [stdout] [INFO] [stdout] running 3 tests [INFO] [stdout] test test::std_tests::std_encode_decode_demo ... ok [INFO] [stdout] test test::no_std_tests::no_std_encode_decode_demo ... ok [INFO] [stdout] test value::tests::test_value_encode_decode ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Doc-tests msgpackin [INFO] [stdout] [INFO] [stdout] running 4 tests [INFO] [stdout] test src/lib.rs - (line 36) ... ok [INFO] [stdout] test src/lib.rs - (line 75) ... ok [INFO] [stdout] test src/lib.rs - (line 99) ... ok [INFO] [stdout] test src/lib.rs - (line 55) ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.33s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "fec819d190c6e82959c388b4f7b26cb499ec0a10537663bbe41354d7875ce39e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fec819d190c6e82959c388b4f7b26cb499ec0a10537663bbe41354d7875ce39e", kill_on_drop: false }` [INFO] [stdout] fec819d190c6e82959c388b4f7b26cb499ec0a10537663bbe41354d7875ce39e