[INFO] fetching crate inferno 0.12.3... [INFO] checking inferno-0.12.3 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577 [INFO] extracting crate inferno 0.12.3 into /workspace/builds/worker-6-tc2/source [INFO] started tweaking crates.io crate inferno 0.12.3 [INFO] finished tweaking crates.io crate inferno 0.12.3 [INFO] tweaked toml for crates.io crate inferno 0.12.3 written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate inferno 0.12.3 on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate crates.io crate inferno 0.12.3 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] c26bbea1492d6e695b6a120352f87064834ee5daecedf1d179b33501fe9d5157 [INFO] running `Command { std: "docker" "start" "-a" "c26bbea1492d6e695b6a120352f87064834ee5daecedf1d179b33501fe9d5157", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "c26bbea1492d6e695b6a120352f87064834ee5daecedf1d179b33501fe9d5157", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c26bbea1492d6e695b6a120352f87064834ee5daecedf1d179b33501fe9d5157", kill_on_drop: false }` [INFO] [stdout] c26bbea1492d6e695b6a120352f87064834ee5daecedf1d179b33501fe9d5157 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=forbid -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 948402156a5838c15910d65605b567f48df8fcaedbc38a5b3d7f0c536fb8e0bf [INFO] running `Command { std: "docker" "start" "-a" "948402156a5838c15910d65605b567f48df8fcaedbc38a5b3d7f0c536fb8e0bf", kill_on_drop: false }` [INFO] [stderr] Checking once_cell v1.21.1 [INFO] [stderr] Compiling ahash v0.8.11 [INFO] [stderr] Checking env_filter v0.1.3 [INFO] [stderr] Checking quick-xml v0.37.2 [INFO] [stderr] Checking str_stack v0.1.0 [INFO] [stderr] Checking clap_builder v4.4.18 [INFO] [stderr] Checking parking_lot_core v0.9.10 [INFO] [stderr] Checking rgb v0.8.50 [INFO] [stderr] Checking crossbeam-channel v0.5.15 [INFO] [stderr] Checking num-format v0.4.4 [INFO] [stderr] Checking indexmap v2.8.0 [INFO] [stderr] Compiling getrandom v0.3.2 [INFO] [stderr] Compiling syn v2.0.100 [INFO] [stderr] Checking regex-automata v0.4.9 [INFO] [stderr] Checking half v2.5.0 [INFO] [stderr] Checking rayon-core v1.12.1 [INFO] [stderr] Checking core2 v0.4.0 [INFO] [stderr] Checking env_logger v0.11.7 [INFO] [stderr] Compiling assert_cmd v2.0.16 [INFO] [stderr] Checking rle-decode-fast v1.0.3 [INFO] [stderr] Checking criterion-plot v0.5.0 [INFO] [stderr] Checking predicates v3.1.3 [INFO] [stderr] Checking plotters v0.3.7 [INFO] [stderr] Checking wait-timeout v0.2.1 [INFO] [stderr] Checking ciborium-ll v0.2.2 [INFO] [stderr] Checking crc32fast v1.4.2 [INFO] [stderr] Checking dary_heap v0.3.7 [INFO] [stderr] Checking yansi v1.0.1 [INFO] [stderr] Checking adler32 v1.2.0 [INFO] [stderr] Checking rayon v1.10.0 [INFO] [stderr] Checking testing_logger v0.1.1 [INFO] [stderr] Checking hashbrown v0.14.5 [INFO] [stderr] Checking pretty_assertions v1.4.1 [INFO] [stderr] Checking rand_core v0.9.3 [INFO] [stderr] Checking rand_chacha v0.9.0 [INFO] [stderr] Checking dashmap v6.1.0 [INFO] [stderr] Checking libflate_lz77 v2.1.0 [INFO] [stderr] Checking rand v0.9.0 [INFO] [stderr] Checking libflate v2.1.0 [INFO] [stderr] Checking bstr v1.11.3 [INFO] [stderr] Checking regex v1.11.1 [INFO] [stderr] Compiling clap_derive v4.4.7 [INFO] [stderr] Compiling serde_derive v1.0.219 [INFO] [stderr] Checking clap v4.4.18 [INFO] [stderr] Checking inferno v0.12.3 (/opt/rustwide/workdir) [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/collapse/common.rs:483:59 [INFO] [stdout] | [INFO] [stdout] 483 | pub(crate) fn fix_partially_demangled_rust_symbol(symbol: &str) -> Cow { [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)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 483 | pub(crate) fn fix_partially_demangled_rust_symbol(symbol: &str) -> Cow<'_, str> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking serde v1.0.219 [INFO] [stderr] Checking serde_json v1.0.140 [INFO] [stderr] Checking ciborium v0.2.2 [INFO] [stderr] Checking tinytemplate v1.2.1 [INFO] [stderr] Checking criterion v0.5.1 [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/bin/flamegraph.rs:466:32 [INFO] [stdout] | [INFO] [stdout] 466 | assert_eq!(infiles[0], PathBuf::from_str("test_infile1").unwrap()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: requested on the command line with `-D unmustuse-in-always-ok` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/bin/flamegraph.rs:467:32 [INFO] [stdout] | [INFO] [stdout] 467 | assert_eq!(infiles[1], PathBuf::from_str("test_infile2").unwrap()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `inferno` (bin "inferno-flamegraph" test) due to 2 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/collapse/common.rs:483:59 [INFO] [stdout] | [INFO] [stdout] 483 | pub(crate) fn fix_partially_demangled_rust_symbol(symbol: &str) -> Cow { [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)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 483 | pub(crate) fn fix_partially_demangled_rust_symbol(symbol: &str) -> Cow<'_, str> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "948402156a5838c15910d65605b567f48df8fcaedbc38a5b3d7f0c536fb8e0bf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "948402156a5838c15910d65605b567f48df8fcaedbc38a5b3d7f0c536fb8e0bf", kill_on_drop: false }` [INFO] [stdout] 948402156a5838c15910d65605b567f48df8fcaedbc38a5b3d7f0c536fb8e0bf