[INFO] fetching crate jsonpiler 0.7.3...
[INFO] testing jsonpiler-0.7.3 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7
[INFO] extracting crate jsonpiler 0.7.3 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate jsonpiler 0.7.3
[INFO] finished tweaking crates.io crate jsonpiler 0.7.3
[INFO] tweaked toml for crates.io crate jsonpiler 0.7.3 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate jsonpiler 0.7.3 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate jsonpiler 0.7.3 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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dabc81193d0092b7809d945a3c10979ff17e8afd5117164493f69e1ba13106cc
[INFO] running `Command { std: "docker" "start" "-a" "dabc81193d0092b7809d945a3c10979ff17e8afd5117164493f69e1ba13106cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dabc81193d0092b7809d945a3c10979ff17e8afd5117164493f69e1ba13106cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dabc81193d0092b7809d945a3c10979ff17e8afd5117164493f69e1ba13106cc", kill_on_drop: false }`
[INFO] [stdout] dabc81193d0092b7809d945a3c10979ff17e8afd5117164493f69e1ba13106cc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] db6125aa8d3745956b568ff3e5cb21d3cb41a6d00ed7236ee7cea489f2421d3c
[INFO] running `Command { std: "docker" "start" "-a" "db6125aa8d3745956b568ff3e5cb21d3cb41a6d00ed7236ee7cea489f2421d3c", kill_on_drop: false }`
[INFO] [stderr]    Compiling jsonpiler v0.7.3 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0716]: temporary value dropped while borrowed
[INFO] [stdout]   --> src/other.rs:18:54
[INFO] [stdout]    |
[INFO] [stdout] 18 |     format!("{ty} ({})", if let Var(label) = self { &format!("{label}") } else { "Literal" })
[INFO] [stdout]    |                                                     -^^^^^^^^^^^^^^^^^-
[INFO] [stdout]    |                                                     ||                |
[INFO] [stdout]    |                                                     ||                temporary value is freed at the end of this statement
[INFO] [stdout]    |                                                     |creates a temporary value which is freed while still in use
[INFO] [stdout]    |                                                     borrow later used here
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using a `let` binding to create a longer lived value
[INFO] [stdout]    = note: this error originates in the macro `format` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0716`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `jsonpiler` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "db6125aa8d3745956b568ff3e5cb21d3cb41a6d00ed7236ee7cea489f2421d3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db6125aa8d3745956b568ff3e5cb21d3cb41a6d00ed7236ee7cea489f2421d3c", kill_on_drop: false }`
[INFO] [stdout] db6125aa8d3745956b568ff3e5cb21d3cb41a6d00ed7236ee7cea489f2421d3c