[INFO] fetching crate varurl 0.1.26...
[INFO] testing varurl-0.1.26 against master#caccb4d0368bd918ef6668af8e13834d07040417 for pr-146098-1
[INFO] extracting crate varurl 0.1.26 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate varurl 0.1.26
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate varurl 0.1.26
[INFO] tweaked toml for crates.io crate varurl 0.1.26 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate varurl 0.1.26 on toolchain caccb4d0368bd918ef6668af8e13834d07040417
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 75 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded mdli v0.1.28
[INFO] [stderr]   Downloaded pos_lines v0.1.10
[INFO] [stderr]   Downloaded daachorse v1.0.0
[INFO] [stderr]   Downloaded xerr v0.1.16
[INFO] [stderr]   Downloaded loginit v0.1.18
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 37d95574c36699bf84571309e73e77d29243cdca06d3b8c87b487ba7017edbb8
[INFO] running `Command { std: "docker" "start" "-a" "37d95574c36699bf84571309e73e77d29243cdca06d3b8c87b487ba7017edbb8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "37d95574c36699bf84571309e73e77d29243cdca06d3b8c87b487ba7017edbb8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37d95574c36699bf84571309e73e77d29243cdca06d3b8c87b487ba7017edbb8", kill_on_drop: false }`
[INFO] [stdout] 37d95574c36699bf84571309e73e77d29243cdca06d3b8c87b487ba7017edbb8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c4264b9f8ea7e0e42e98b74b980ae6a661a2ddc359400efc9eb18aeb4bc1c467
[INFO] running `Command { std: "docker" "start" "-a" "c4264b9f8ea7e0e42e98b74b980ae6a661a2ddc359400efc9eb18aeb4bc1c467", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling aok v0.1.17
[INFO] [stderr]    Compiling daachorse v1.0.0
[INFO] [stderr]    Compiling xerr v0.1.16
[INFO] [stderr]    Compiling pos_lines v0.1.10
[INFO] [stderr]    Compiling mdli v0.1.28
[INFO] [stdout] error: let chains are only allowed in Rust 2024 or later
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/mdli-0.1.28/src/lib.rs:154:18
[INFO] [stdout]     |
[INFO] [stdout] 154 |               && let Some((_, i)) = remain.next()
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: let chains are only allowed in Rust 2024 or later
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/mdli-0.1.28/src/lib.rs:215:20
[INFO] [stdout]     |
[INFO] [stdout] 215 |                 && let Some(last) = remain[..p].chars().last()
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mdli` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "c4264b9f8ea7e0e42e98b74b980ae6a661a2ddc359400efc9eb18aeb4bc1c467", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c4264b9f8ea7e0e42e98b74b980ae6a661a2ddc359400efc9eb18aeb4bc1c467", kill_on_drop: false }`
[INFO] [stdout] c4264b9f8ea7e0e42e98b74b980ae6a661a2ddc359400efc9eb18aeb4bc1c467