[INFO] fetching crate qbe 2.5.0...
[INFO] checking qbe-2.5.0 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate qbe 2.5.0 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate qbe 2.5.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate qbe 2.5.0
[INFO] tweaked toml for crates.io crate qbe 2.5.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate qbe 2.5.0 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate qbe 2.5.0 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" "+998b6603a58e47f42ccce7a67943234e96b6839e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8ef0aae1e25eb68ee5bd4a15a1a9662c589c4ba60f5085339eb67a858ecc8e25
[INFO] running `Command { std: "docker" "start" "-a" "8ef0aae1e25eb68ee5bd4a15a1a9662c589c4ba60f5085339eb67a858ecc8e25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8ef0aae1e25eb68ee5bd4a15a1a9662c589c4ba60f5085339eb67a858ecc8e25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ef0aae1e25eb68ee5bd4a15a1a9662c589c4ba60f5085339eb67a858ecc8e25", kill_on_drop: false }`
[INFO] [stdout] 8ef0aae1e25eb68ee5bd4a15a1a9662c589c4ba60f5085339eb67a858ecc8e25
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6f3efa69003d6d48c62c7b7ff9fdfb1c900ce962777267883e6036c38306bc19
[INFO] running `Command { std: "docker" "start" "-a" "6f3efa69003d6d48c62c7b7ff9fdfb1c900ce962777267883e6036c38306bc19", kill_on_drop: false }`
[INFO] [stderr]     Checking qbe v2.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/lib.rs:942:23
[INFO] [stdout]     |
[INFO] [stdout] 942 |     pub fn last_block(&mut self) -> &Block {
[INFO] [stdout]     |                       ^^^^^^^^^     ------
[INFO] [stdout]     |                       |             ||
[INFO] [stdout]     |                       |             |the lifetimes get resolved as `'_`
[INFO] [stdout]     |                       |             the lifetimes get resolved as `'_`
[INFO] [stdout]     |                       this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 942 |     pub fn last_block(&mut self) -> &Block<'_> {
[INFO] [stdout]     |                                           ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/lib.rs:942:23
[INFO] [stdout]     |
[INFO] [stdout] 942 |     pub fn last_block(&mut self) -> &Block {
[INFO] [stdout]     |                       ^^^^^^^^^     ------
[INFO] [stdout]     |                       |             ||
[INFO] [stdout]     |                       |             |the lifetimes get resolved as `'_`
[INFO] [stdout]     |                       |             the lifetimes get resolved as `'_`
[INFO] [stdout]     |                       this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 942 |     pub fn last_block(&mut self) -> &Block<'_> {
[INFO] [stdout]     |                                           ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.91s
[INFO] running `Command { std: "docker" "inspect" "6f3efa69003d6d48c62c7b7ff9fdfb1c900ce962777267883e6036c38306bc19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f3efa69003d6d48c62c7b7ff9fdfb1c900ce962777267883e6036c38306bc19", kill_on_drop: false }`
[INFO] [stdout] 6f3efa69003d6d48c62c7b7ff9fdfb1c900ce962777267883e6036c38306bc19