[INFO] cloning repository https://github.com/Dzuchun/stacked-set
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Dzuchun/stacked-set" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDzuchun%2Fstacked-set", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDzuchun%2Fstacked-set'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 88c2e438a9923c642d5ac85eead5e9a63413a975
[INFO] checking Dzuchun/stacked-set against try#901e6d56697c79b2e80df6a487b2318ec6f57ee3 for pr-142287
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDzuchun%2Fstacked-set" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Dzuchun/stacked-set on toolchain 901e6d56697c79b2e80df6a487b2318ec6f57ee3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+901e6d56697c79b2e80df6a487b2318ec6f57ee3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Dzuchun/stacked-set
[INFO] finished tweaking git repo https://github.com/Dzuchun/stacked-set
[INFO] tweaked toml for git repo https://github.com/Dzuchun/stacked-set written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Dzuchun/stacked-set 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" "+901e6d56697c79b2e80df6a487b2318ec6f57ee3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+901e6d56697c79b2e80df6a487b2318ec6f57ee3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] aa1228d3bc84c6e9fd1bd3a9452ffb8cd5237a0cd96d8c2d37337d714a9cd405
[INFO] running `Command { std: "docker" "start" "-a" "aa1228d3bc84c6e9fd1bd3a9452ffb8cd5237a0cd96d8c2d37337d714a9cd405", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aa1228d3bc84c6e9fd1bd3a9452ffb8cd5237a0cd96d8c2d37337d714a9cd405", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa1228d3bc84c6e9fd1bd3a9452ffb8cd5237a0cd96d8c2d37337d714a9cd405", kill_on_drop: false }`
[INFO] [stdout] aa1228d3bc84c6e9fd1bd3a9452ffb8cd5237a0cd96d8c2d37337d714a9cd405
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+901e6d56697c79b2e80df6a487b2318ec6f57ee3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 274353b2ddc9641fc23beded31cf2467e06ef4c1556331f4ec7d19f8e7416d8c
[INFO] running `Command { std: "docker" "start" "-a" "274353b2ddc9641fc23beded31cf2467e06ef4c1556331f4ec7d19f8e7416d8c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.94
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling libc v0.2.171
[INFO] [stderr]    Compiling serde_json v1.0.140
[INFO] [stderr]     Checking either v1.15.0
[INFO] [stderr]     Checking regex-syntax v0.8.5
[INFO] [stderr]     Checking clap_lex v0.7.4
[INFO] [stderr]     Checking plotters-backend v0.3.7
[INFO] [stderr]     Checking ciborium-io v0.2.2
[INFO] [stderr]     Checking anstyle v1.0.10
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking half v2.5.0
[INFO] [stderr]     Checking itoa v1.0.15
[INFO] [stderr]     Checking ryu v1.0.20
[INFO] [stderr]     Checking cast v0.3.0
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking walkdir v2.5.0
[INFO] [stderr]     Checking oorandom v11.1.5
[INFO] [stderr]     Checking once_cell v1.21.3
[INFO] [stderr]     Checking anes v0.1.6
[INFO] [stderr]     Checking ciborium-ll v0.2.2
[INFO] [stderr]     Checking stacked-set v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0716]: temporary value dropped while borrowed
[INFO] [stdout]    --> src/cons.rs:100:52
[INFO] [stdout]     |
[INFO] [stdout] 94  | impl<'l, Item> Iterator for ConsIter<'l, Item> {
[INFO] [stdout]     |      -- lifetime `'l` defined here
[INFO] [stdout] ...
[INFO] [stdout] 100 |             match core::mem::replace(&mut self.0, &ConsRepr::Nil) {
[INFO] [stdout]     |                   ---------------------------------^^^^^^^^^^^^^-
[INFO] [stdout]     |                   |                                |
[INFO] [stdout]     |                   |                                creates a temporary value which is freed while still in use
[INFO] [stdout]     |                   argument requires that borrow lasts for `'l`
[INFO] [stdout] ...
[INFO] [stdout] 112 |             }
[INFO] [stdout]     |             - temporary value is freed at the end of this statement
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0716`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `stacked-set` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "274353b2ddc9641fc23beded31cf2467e06ef4c1556331f4ec7d19f8e7416d8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "274353b2ddc9641fc23beded31cf2467e06ef4c1556331f4ec7d19f8e7416d8c", kill_on_drop: false }`
[INFO] [stdout] 274353b2ddc9641fc23beded31cf2467e06ef4c1556331f4ec7d19f8e7416d8c