[INFO] fetching crate xxd-rs 0.3.0...
[INFO] checking xxd-rs-0.3.0 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864
[INFO] extracting crate xxd-rs 0.3.0 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate xxd-rs 0.3.0 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 xxd-rs 0.3.0
[INFO] finished tweaking crates.io crate xxd-rs 0.3.0
[INFO] tweaked toml for crates.io crate xxd-rs 0.3.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate crates.io crate xxd-rs 0.3.0 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" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 36d04ef3bef72cbc2ea515165697c67260a7beec0acee2eef9da75298d903ef8
[INFO] running `Command { std: "docker" "start" "-a" "36d04ef3bef72cbc2ea515165697c67260a7beec0acee2eef9da75298d903ef8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "36d04ef3bef72cbc2ea515165697c67260a7beec0acee2eef9da75298d903ef8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36d04ef3bef72cbc2ea515165697c67260a7beec0acee2eef9da75298d903ef8", kill_on_drop: false }`
[INFO] [stdout] 36d04ef3bef72cbc2ea515165697c67260a7beec0acee2eef9da75298d903ef8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 6221c3e64ed327bb185813e870dd361a5a2fcc25a0aafe4afc891bf90b1a969e
[INFO] running `Command { std: "docker" "start" "-a" "6221c3e64ed327bb185813e870dd361a5a2fcc25a0aafe4afc891bf90b1a969e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.42
[INFO] [stderr]    Compiling unicode-ident v1.0.2
[INFO] [stderr]    Compiling quote v1.0.20
[INFO] [stderr]    Compiling syn v1.0.98
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling serde v1.0.140
[INFO] [stderr]    Compiling unicode-width v0.1.9
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling serde_derive v1.0.140
[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]     Checking gimli v0.26.2
[INFO] [stderr]     Checking regex-syntax v0.6.27
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking object v0.29.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]     Checking getrandom v0.2.7
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]     Checking miniz_oxide v0.5.3
[INFO] [stderr]    Compiling backtrace v0.3.66
[INFO] [stderr]     Checking rustc-demangle v0.1.21
[INFO] [stderr]    Compiling anyhow v1.0.58
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]     Checking memchr v1.0.2
[INFO] [stderr]     Checking termcolor v1.1.3
[INFO] [stderr]     Checking nom v3.2.1
[INFO] [stderr]     Checking regex v1.6.0
[INFO] [stderr]     Checking addr2line v0.17.0
[INFO] [stderr]     Checking os_type v2.4.0
[INFO] [stderr]    Compiling xxd-rs v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking toml v0.5.9
[INFO] [stderr]     Checking human-panic v1.0.3
[INFO] [stdout] warning: struct `Line` is never constructed
[INFO] [stdout]   --> src/xxd/convert.rs:35:8
[INFO] [stdout]    |
[INFO] [stdout] 35 | struct Line {
[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: use of deprecated type alias `std::panic::PanicInfo`: use `PanicHookInfo` instead
[INFO] [stdout]   --> src/bin/main.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 |     human_panic::setup_panic!();
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `human_panic::setup_panic` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated type alias `std::panic::PanicInfo`: use `PanicHookInfo` instead
[INFO] [stdout]   --> src/bin/main.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 |     human_panic::setup_panic!();
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `human_panic::setup_panic` (in Nightly builds, run with -Z macro-backtrace for more info)
[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 28.49s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nom v3.2.1
[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" "6221c3e64ed327bb185813e870dd361a5a2fcc25a0aafe4afc891bf90b1a969e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6221c3e64ed327bb185813e870dd361a5a2fcc25a0aafe4afc891bf90b1a969e", kill_on_drop: false }`
[INFO] [stdout] 6221c3e64ed327bb185813e870dd361a5a2fcc25a0aafe4afc891bf90b1a969e