[INFO] cloning repository https://github.com/wzv5/leetcode_rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wzv5/leetcode_rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwzv5%2Fleetcode_rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwzv5%2Fleetcode_rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0c274a7babb8568c8839c7a4a5fc8a254e1db19d
[INFO] checking wzv5/leetcode_rs against try#303604bb848977091b2fdfc36579c25e56c6889c for pr-108691
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwzv5%2Fleetcode_rs" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/wzv5/leetcode_rs on toolchain 303604bb848977091b2fdfc36579c25e56c6889c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+303604bb848977091b2fdfc36579c25e56c6889c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/wzv5/leetcode_rs
[INFO] finished tweaking git repo https://github.com/wzv5/leetcode_rs
[INFO] tweaked toml for git repo https://github.com/wzv5/leetcode_rs written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/wzv5/leetcode_rs 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" "+303604bb848977091b2fdfc36579c25e56c6889c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e2a9e7e193985ba0d5a8221c3984785a9e0a75acc409a02815633ff67a1f464e" "/opt/rustwide/cargo-home/bin/cargo" "+303604bb848977091b2fdfc36579c25e56c6889c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3a8a38619d634f1b360cf02ae272d9f752473a7e0cffebbc6cbf68d64607a6e4
[INFO] running `Command { std: "docker" "start" "-a" "3a8a38619d634f1b360cf02ae272d9f752473a7e0cffebbc6cbf68d64607a6e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3a8a38619d634f1b360cf02ae272d9f752473a7e0cffebbc6cbf68d64607a6e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a8a38619d634f1b360cf02ae272d9f752473a7e0cffebbc6cbf68d64607a6e4", kill_on_drop: false }`
[INFO] [stdout] 3a8a38619d634f1b360cf02ae272d9f752473a7e0cffebbc6cbf68d64607a6e4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e2a9e7e193985ba0d5a8221c3984785a9e0a75acc409a02815633ff67a1f464e" "/opt/rustwide/cargo-home/bin/cargo" "+303604bb848977091b2fdfc36579c25e56c6889c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2da353136a6f413b8bd50b44e706e8f57795e327a3da9ff35367f7038d5a42be
[INFO] running `Command { std: "docker" "start" "-a" "2da353136a6f413b8bd50b44e706e8f57795e327a3da9ff35367f7038d5a42be", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr] thread 'rustc' panicked at 'assertion failed: pos.get() <= self.position()', compiler/rustc_metadata/src/rmeta/encoder.rs:435:9
[INFO] [stderr] error: could not compile `syn`
[INFO] running `Command { std: "docker" "inspect" "2da353136a6f413b8bd50b44e706e8f57795e327a3da9ff35367f7038d5a42be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2da353136a6f413b8bd50b44e706e8f57795e327a3da9ff35367f7038d5a42be", kill_on_drop: false }`
[INFO] [stdout] 2da353136a6f413b8bd50b44e706e8f57795e327a3da9ff35367f7038d5a42be