[INFO] fetching crate flat-rs 1.0.20-alpha...
[INFO] checking flat-rs-1.0.20-alpha against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864
[INFO] extracting crate flat-rs 1.0.20-alpha into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate flat-rs 1.0.20-alpha 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 flat-rs 1.0.20-alpha
[INFO] finished tweaking crates.io crate flat-rs 1.0.20-alpha
[INFO] tweaked toml for crates.io crate flat-rs 1.0.20-alpha written to /workspace/builds/worker-1-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]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 50 packages to latest compatible versions
[INFO] [stderr]       Adding bit-set v0.5.3 (available: v0.8.0)
[INFO] [stderr]       Adding bit-vec v0.6.3 (available: v0.8.0)
[INFO] [stderr]       Adding linux-raw-sys v0.4.14 (available: v0.6.5)
[INFO] [stderr]       Adding quick-error v1.2.3 (available: v2.0.1)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (available: v0.13.2+wasi-0.2.1)
[INFO] [stderr]       Adding windows-sys v0.52.0 (available: v0.59.0)
[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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] dea38a6903c0fb8c3cc5248df1a31f106944fd26ee8a65c5bb309a6a8cdd7bcd
[INFO] running `Command { std: "docker" "start" "-a" "dea38a6903c0fb8c3cc5248df1a31f106944fd26ee8a65c5bb309a6a8cdd7bcd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dea38a6903c0fb8c3cc5248df1a31f106944fd26ee8a65c5bb309a6a8cdd7bcd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dea38a6903c0fb8c3cc5248df1a31f106944fd26ee8a65c5bb309a6a8cdd7bcd", kill_on_drop: false }`
[INFO] [stdout] dea38a6903c0fb8c3cc5248df1a31f106944fd26ee8a65c5bb309a6a8cdd7bcd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 27dfb7b42db05fc0d11857da1cb45b061dde156955da0284a03b6e3fdf6c67fc
[INFO] running `Command { std: "docker" "start" "-a" "27dfb7b42db05fc0d11857da1cb45b061dde156955da0284a03b6e3fdf6c67fc", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.159
[INFO] [stderr]     Checking flat-rs v1.0.20-alpha (/opt/rustwide/workdir)
[INFO] [stdout] warning: elided lifetime has a name
[INFO] [stdout]   --> src/decode/decoder.rs:13:36
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl<'b> Decoder<'b> {
[INFO] [stdout]    |      -- lifetime `'b` declared here
[INFO] [stdout] 13 |     pub fn new(bytes: &'b [u8]) -> Decoder {
[INFO] [stdout]    |                                    ^^^^^^^ this elided lifetime gets resolved as `'b`
[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] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking rusty-fork v0.3.0
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand_xorshift v0.3.0
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking proptest v1.5.0
[INFO] [stdout] warning: elided lifetime has a name
[INFO] [stdout]   --> src/decode/decoder.rs:13:36
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl<'b> Decoder<'b> {
[INFO] [stdout]    |      -- lifetime `'b` declared here
[INFO] [stdout] 13 |     pub fn new(bytes: &'b [u8]) -> Decoder {
[INFO] [stdout]    |                                    ^^^^^^^ this elided lifetime gets resolved as `'b`
[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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.23s
[INFO] running `Command { std: "docker" "inspect" "27dfb7b42db05fc0d11857da1cb45b061dde156955da0284a03b6e3fdf6c67fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "27dfb7b42db05fc0d11857da1cb45b061dde156955da0284a03b6e3fdf6c67fc", kill_on_drop: false }`
[INFO] [stdout] 27dfb7b42db05fc0d11857da1cb45b061dde156955da0284a03b6e3fdf6c67fc