[INFO] fetching crate msn-kit 0.2.5...
[INFO] checking msn-kit-0.2.5 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864
[INFO] extracting crate msn-kit 0.2.5 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate msn-kit 0.2.5 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 msn-kit 0.2.5
[INFO] finished tweaking crates.io crate msn-kit 0.2.5
[INFO] tweaked toml for crates.io crate msn-kit 0.2.5 written to /workspace/builds/worker-0-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]     Updating crates.io index
[INFO] [stderr]      Locking 23 packages to latest compatible versions
[INFO] [stderr]       Adding base64 v0.13.1 (available: v0.22.1)
[INFO] [stderr]       Adding proc-macro-hack v0.4.3 (available: v0.5.20+deprecated)
[INFO] [stderr]       Adding quick-xml v0.22.0 (available: v0.36.2)
[INFO] [stderr]       Adding quote v0.3.15 (available: v1.0.37)
[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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 536d1eb2be151be8990dea76b868ff34f634439740aa893b4c29725107653206
[INFO] running `Command { std: "docker" "start" "-a" "536d1eb2be151be8990dea76b868ff34f634439740aa893b4c29725107653206", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "536d1eb2be151be8990dea76b868ff34f634439740aa893b4c29725107653206", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "536d1eb2be151be8990dea76b868ff34f634439740aa893b4c29725107653206", kill_on_drop: false }`
[INFO] [stdout] 536d1eb2be151be8990dea76b868ff34f634439740aa893b4c29725107653206
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 42522224599fea1fcc518063839cc12ef1d0c79ed2ae84979a0f315a624764ab
[INFO] running `Command { std: "docker" "start" "-a" "42522224599fea1fcc518063839cc12ef1d0c79ed2ae84979a0f315a624764ab", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro-hack-impl v0.4.3
[INFO] [stderr]     Checking adler2 v2.0.0
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]     Checking quick-xml v0.22.0
[INFO] [stderr]     Checking serde_json v1.0.128
[INFO] [stderr]     Checking miniz_oxide v0.8.0
[INFO] [stderr]    Compiling proc-macro-hack v0.4.3
[INFO] [stderr]    Compiling structure-macro-impl v0.1.2
[INFO] [stderr]     Checking flate2 v1.0.33
[INFO] [stderr]     Checking structure v0.1.2
[INFO] [stderr]     Checking msn-kit v0.2.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::io::Format`
[INFO] [stdout]   --> src/io/mod.rs:50:9
[INFO] [stdout]    |
[INFO] [stdout] 50 |     use crate::io::Format;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::str::FromStr`
[INFO] [stdout]   --> src/io/mod.rs:51:9
[INFO] [stdout]    |
[INFO] [stdout] 51 |     use std::str::FromStr;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `CVVectorMethods` is never used
[INFO] [stdout]    --> src/io/mzml_parser/types.rs:184:7
[INFO] [stdout]     |
[INFO] [stdout] 184 | trait CVVectorMethods {}
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `CVVectorMethods` is never used
[INFO] [stdout]    --> src/io/mzml_parser/types.rs:184:7
[INFO] [stdout]     |
[INFO] [stdout] 184 | trait CVVectorMethods {}
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.20s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: quick-xml v0.22.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 3`
[INFO] running `Command { std: "docker" "inspect" "42522224599fea1fcc518063839cc12ef1d0c79ed2ae84979a0f315a624764ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "42522224599fea1fcc518063839cc12ef1d0c79ed2ae84979a0f315a624764ab", kill_on_drop: false }`
[INFO] [stdout] 42522224599fea1fcc518063839cc12ef1d0c79ed2ae84979a0f315a624764ab