[INFO] fetching crate qwitlib 0.4.0...
[INFO] checking qwitlib-0.4.0 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864
[INFO] extracting crate qwitlib 0.4.0 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate qwitlib 0.4.0 on toolchain 7014e13d5becc920d4bea3cd87942c8a13d359bf
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate qwitlib 0.4.0
[INFO] finished tweaking crates.io crate qwitlib 0.4.0
[INFO] tweaked toml for crates.io crate qwitlib 0.4.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 62 packages to latest compatible versions
[INFO] [stderr]       Adding calamine v0.24.0 (available: v0.25.0)
[INFO] [stderr]       Adding linux-raw-sys v0.4.14 (available: v0.6.5)
[INFO] [stderr]       Adding quick-xml v0.31.0 (available: v0.36.2)
[INFO] [stderr]       Adding windows-core v0.52.0 (available: v0.58.0)
[INFO] [stderr]       Adding windows-sys v0.52.0 (available: v0.59.0)
[INFO] [stderr]       Adding zip v0.6.6 (available: v2.2.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2da50c0f8f1f9ce520c5acc895698b550b25dd86d5305c82b4894a990c68a793
[INFO] running `Command { std: "docker" "start" "-a" "2da50c0f8f1f9ce520c5acc895698b550b25dd86d5305c82b4894a990c68a793", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2da50c0f8f1f9ce520c5acc895698b550b25dd86d5305c82b4894a990c68a793", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2da50c0f8f1f9ce520c5acc895698b550b25dd86d5305c82b4894a990c68a793", kill_on_drop: false }`
[INFO] [stdout] 2da50c0f8f1f9ce520c5acc895698b550b25dd86d5305c82b4894a990c68a793
[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=forbid -Dtail_expr_drop_order" "-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" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 284f0e2a75a763fb71683301b44f2618a3cdd875a256bb2ab3009030f8f6d5b7
[INFO] running `Command { std: "docker" "start" "-a" "284f0e2a75a763fb71683301b44f2618a3cdd875a256bb2ab3009030f8f6d5b7", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling serde v1.0.210
[INFO] [stderr]     Checking powerfmt v0.2.0
[INFO] [stderr]    Compiling rustix v0.38.37
[INFO] [stderr]     Checking time-core v0.1.2
[INFO] [stderr]     Checking linux-raw-sys v0.4.14
[INFO] [stderr]     Checking bitflags v2.6.0
[INFO] [stderr]     Checking iana-time-zone v0.1.61
[INFO] [stderr]     Checking num-conv v0.1.0
[INFO] [stderr]     Checking once_cell v1.19.0
[INFO] [stderr]     Checking flate2 v1.0.33
[INFO] [stderr]     Checking quick-xml v0.31.0
[INFO] [stderr]     Checking codepage v0.1.2
[INFO] [stderr]     Checking fastrand v2.1.1
[INFO] [stderr]     Checking deranged v0.3.11
[INFO] [stderr]     Checking zip v0.6.6
[INFO] [stderr]     Checking time v0.3.36
[INFO] [stderr]     Checking chrono v0.4.38
[INFO] [stderr]     Checking tempfile v3.12.0
[INFO] [stderr]     Checking calamine v0.24.0
[INFO] [stderr]     Checking qwitlib v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait `ToUnixEpoch` is never used
[INFO] [stdout]  --> src/epoch_conversion.rs:6:7
[INFO] [stdout]   |
[INFO] [stdout] 6 | trait ToUnixEpoch {
[INFO] [stdout]   |       ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/lines.rs:35:19
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub struct QError(String);
[INFO] [stdout]    |            ------ ^^^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout]    = note: `QError` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `ToUnixEpoch` is never used
[INFO] [stdout]  --> src/epoch_conversion.rs:6:7
[INFO] [stdout]   |
[INFO] [stdout] 6 | trait ToUnixEpoch {
[INFO] [stdout]   |       ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/lines.rs:35:19
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub struct QError(String);
[INFO] [stdout]    |            ------ ^^^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout]    = note: `QError` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.20s
[INFO] running `Command { std: "docker" "inspect" "284f0e2a75a763fb71683301b44f2618a3cdd875a256bb2ab3009030f8f6d5b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "284f0e2a75a763fb71683301b44f2618a3cdd875a256bb2ab3009030f8f6d5b7", kill_on_drop: false }`
[INFO] [stdout] 284f0e2a75a763fb71683301b44f2618a3cdd875a256bb2ab3009030f8f6d5b7