[INFO] fetching crate qvnt-qasm 0.2.0...
[INFO] checking qvnt-qasm-0.2.0 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930
[INFO] extracting crate qvnt-qasm 0.2.0 into /workspace/builds/worker-7-tc2/source
[INFO] validating manifest of crates.io crate qvnt-qasm 0.2.0 on toolchain c387b04bf028733cd561d62128c8a5eee4bc1458
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate qvnt-qasm 0.2.0
[INFO] finished tweaking crates.io crate qvnt-qasm 0.2.0
[INFO] tweaked toml for crates.io crate qvnt-qasm 0.2.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate crates.io crate qvnt-qasm 0.2.0 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" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr] warning: file `/workspace/builds/worker-7-tc2/source/examples/main.rs` found to be present in multiple build targets:
[INFO] [stderr]   * `bin` target `main`
[INFO] [stderr]   * `example` target `main`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1d2445a440c0bded41a9f7b415fe4d96980ab20004c28c32fae69fd10ec50131
[INFO] running `Command { std: "docker" "start" "-a" "1d2445a440c0bded41a9f7b415fe4d96980ab20004c28c32fae69fd10ec50131", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1d2445a440c0bded41a9f7b415fe4d96980ab20004c28c32fae69fd10ec50131", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d2445a440c0bded41a9f7b415fe4d96980ab20004c28c32fae69fd10ec50131", kill_on_drop: false }`
[INFO] [stdout] 1d2445a440c0bded41a9f7b415fe4d96980ab20004c28c32fae69fd10ec50131
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4f4f61126adddb89b93757686e3a6f0e49fee797657e55cb4c49bc527113c4b2
[INFO] running `Command { std: "docker" "start" "-a" "4f4f61126adddb89b93757686e3a6f0e49fee797657e55cb4c49bc527113c4b2", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr] warning: file `/opt/rustwide/workdir/examples/main.rs` found to be present in multiple build targets:
[INFO] [stderr]   * `bin` target `main`
[INFO] [stderr]   * `example` target `main`
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]     Checking ucd-util v0.1.8
[INFO] [stderr]     Checking utf8-ranges v1.0.4
[INFO] [stderr]     Checking glob v0.2.11
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking regex-syntax v0.5.6
[INFO] [stderr]     Checking aho-corasick v0.6.10
[INFO] [stderr]     Checking qvnt-qasm v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: elided lifetime has a name
[INFO] [stdout]    --> src/lib.rs:345:86
[INFO] [stdout]     |
[INFO] [stdout] 345 | pub fn parse<'t, I>(mut tokens: token::TokenTree<'t, I>) -> Result<Vec<AstNode<'t>>, Error>
[INFO] [stdout]     |              -- lifetime `'t` declared here                                          ^^^^^ this elided lifetime gets resolved as `'t`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(elided_named_lifetimes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: elided lifetime has a name
[INFO] [stdout]    --> src/lib.rs:345:86
[INFO] [stdout]     |
[INFO] [stdout] 345 | pub fn parse<'t, I>(mut tokens: token::TokenTree<'t, I>) -> Result<Vec<AstNode<'t>>, Error>
[INFO] [stdout]     |              -- lifetime `'t` declared here                                          ^^^^^ this elided lifetime gets resolved as `'t`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(elided_named_lifetimes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.66s
[INFO] running `Command { std: "docker" "inspect" "4f4f61126adddb89b93757686e3a6f0e49fee797657e55cb4c49bc527113c4b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f4f61126adddb89b93757686e3a6f0e49fee797657e55cb4c49bc527113c4b2", kill_on_drop: false }`
[INFO] [stdout] 4f4f61126adddb89b93757686e3a6f0e49fee797657e55cb4c49bc527113c4b2