[INFO] cloning repository https://github.com/xDarksome/reqwest-leaky-bucket [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/xDarksome/reqwest-leaky-bucket" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FxDarksome%2Freqwest-leaky-bucket", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FxDarksome%2Freqwest-leaky-bucket'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] b572b0ecdcdc711b29aa4b5322fdb88c074b032d [INFO] checking xDarksome/reqwest-leaky-bucket against master#05eac57ef6668c9d181b65aceb96b1e7881f60be for pr-127656 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FxDarksome%2Freqwest-leaky-bucket" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/xDarksome/reqwest-leaky-bucket on toolchain 05eac57ef6668c9d181b65aceb96b1e7881f60be [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+05eac57ef6668c9d181b65aceb96b1e7881f60be" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/xDarksome/reqwest-leaky-bucket [INFO] finished tweaking git repo https://github.com/xDarksome/reqwest-leaky-bucket [INFO] tweaked toml for git repo https://github.com/xDarksome/reqwest-leaky-bucket written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/xDarksome/reqwest-leaky-bucket 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" "+05eac57ef6668c9d181b65aceb96b1e7881f60be" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 1 package to latest compatible version [INFO] [stderr] Updating reqwest-leaky-bucket v0.1.0 (/workspace/builds/worker-0-tc1/source) -> v0.2.0 [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded leaky-bucket v1.0.1 [INFO] [stderr] Downloaded reqwest-ratelimit v0.2.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+05eac57ef6668c9d181b65aceb96b1e7881f60be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] bd0a59d64c4cb3863c2f5571d680ba0100c2a52b3fe10027ebd79103de506c49 [INFO] running `Command { std: "docker" "start" "-a" "bd0a59d64c4cb3863c2f5571d680ba0100c2a52b3fe10027ebd79103de506c49", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "bd0a59d64c4cb3863c2f5571d680ba0100c2a52b3fe10027ebd79103de506c49", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "bd0a59d64c4cb3863c2f5571d680ba0100c2a52b3fe10027ebd79103de506c49", kill_on_drop: false }` [INFO] [stdout] bd0a59d64c4cb3863c2f5571d680ba0100c2a52b3fe10027ebd79103de506c49 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+05eac57ef6668c9d181b65aceb96b1e7881f60be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] bdc74db7a28eca66560aaef599587f0b021b5d66e61ea8a7cd81981963be746e [INFO] running `Command { std: "docker" "start" "-a" "bdc74db7a28eca66560aaef599587f0b021b5d66e61ea8a7cd81981963be746e", kill_on_drop: false }` [INFO] [stderr] error: failed to create directory `/opt/rustwide/target/debug/build/lock_api-491726336ff84826` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] No space left on device (os error 28) [INFO] running `Command { std: "docker" "inspect" "bdc74db7a28eca66560aaef599587f0b021b5d66e61ea8a7cd81981963be746e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "bdc74db7a28eca66560aaef599587f0b021b5d66e61ea8a7cd81981963be746e", kill_on_drop: false }` [INFO] [stdout] bdc74db7a28eca66560aaef599587f0b021b5d66e61ea8a7cd81981963be746e [INFO] checking xDarksome/reqwest-leaky-bucket against try#0c9c19b42881b7ee3d3f268d2369726c7f8dddfd for pr-127656 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FxDarksome%2Freqwest-leaky-bucket" "/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/xDarksome/reqwest-leaky-bucket on toolchain 0c9c19b42881b7ee3d3f268d2369726c7f8dddfd [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0c9c19b42881b7ee3d3f268d2369726c7f8dddfd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/xDarksome/reqwest-leaky-bucket [INFO] finished tweaking git repo https://github.com/xDarksome/reqwest-leaky-bucket [INFO] tweaked toml for git repo https://github.com/xDarksome/reqwest-leaky-bucket written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/xDarksome/reqwest-leaky-bucket 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" "+0c9c19b42881b7ee3d3f268d2369726c7f8dddfd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Locking 1 package to latest compatible version [INFO] [stderr] Updating reqwest-leaky-bucket v0.1.0 (/workspace/builds/worker-0-tc2/source) -> v0.2.0 [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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+0c9c19b42881b7ee3d3f268d2369726c7f8dddfd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] a309cbbb1980212827d1820aece99de33e57d3611828b61ae07066d77717562d [INFO] running `Command { std: "docker" "start" "-a" "a309cbbb1980212827d1820aece99de33e57d3611828b61ae07066d77717562d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a309cbbb1980212827d1820aece99de33e57d3611828b61ae07066d77717562d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a309cbbb1980212827d1820aece99de33e57d3611828b61ae07066d77717562d", kill_on_drop: false }` [INFO] [stdout] a309cbbb1980212827d1820aece99de33e57d3611828b61ae07066d77717562d [INFO] checking xDarksome/reqwest-leaky-bucket against try#0c9c19b42881b7ee3d3f268d2369726c7f8dddfd for pr-127656 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FxDarksome%2Freqwest-leaky-bucket" "/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/xDarksome/reqwest-leaky-bucket on toolchain 0c9c19b42881b7ee3d3f268d2369726c7f8dddfd [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0c9c19b42881b7ee3d3f268d2369726c7f8dddfd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/xDarksome/reqwest-leaky-bucket [INFO] finished tweaking git repo https://github.com/xDarksome/reqwest-leaky-bucket [INFO] tweaked toml for git repo https://github.com/xDarksome/reqwest-leaky-bucket written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/xDarksome/reqwest-leaky-bucket 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" "+0c9c19b42881b7ee3d3f268d2369726c7f8dddfd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Locking 1 package to latest compatible version [INFO] [stderr] Updating reqwest-leaky-bucket v0.1.0 (/workspace/builds/worker-0-tc2/source) -> v0.2.0 [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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+0c9c19b42881b7ee3d3f268d2369726c7f8dddfd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] d037de0f06ce4fdfd4e0cee766efacb867e406bbe853599ba668a3d5f1a5b6be [INFO] running `Command { std: "docker" "start" "-a" "d037de0f06ce4fdfd4e0cee766efacb867e406bbe853599ba668a3d5f1a5b6be", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "d037de0f06ce4fdfd4e0cee766efacb867e406bbe853599ba668a3d5f1a5b6be", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d037de0f06ce4fdfd4e0cee766efacb867e406bbe853599ba668a3d5f1a5b6be", kill_on_drop: false }` [INFO] [stdout] d037de0f06ce4fdfd4e0cee766efacb867e406bbe853599ba668a3d5f1a5b6be [INFO] checking xDarksome/reqwest-leaky-bucket against try#0c9c19b42881b7ee3d3f268d2369726c7f8dddfd for pr-127656 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FxDarksome%2Freqwest-leaky-bucket" "/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/xDarksome/reqwest-leaky-bucket on toolchain 0c9c19b42881b7ee3d3f268d2369726c7f8dddfd [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0c9c19b42881b7ee3d3f268d2369726c7f8dddfd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/xDarksome/reqwest-leaky-bucket [INFO] finished tweaking git repo https://github.com/xDarksome/reqwest-leaky-bucket [INFO] tweaked toml for git repo https://github.com/xDarksome/reqwest-leaky-bucket written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/xDarksome/reqwest-leaky-bucket 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" "+0c9c19b42881b7ee3d3f268d2369726c7f8dddfd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Locking 1 package to latest compatible version [INFO] [stderr] Updating reqwest-leaky-bucket v0.1.0 (/workspace/builds/worker-0-tc2/source) -> v0.2.0 [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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+0c9c19b42881b7ee3d3f268d2369726c7f8dddfd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 71299e0748c7097051d2b0784c22861da9f62af2860e7af79f866d8c8eda121b [INFO] running `Command { std: "docker" "start" "-a" "71299e0748c7097051d2b0784c22861da9f62af2860e7af79f866d8c8eda121b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "71299e0748c7097051d2b0784c22861da9f62af2860e7af79f866d8c8eda121b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "71299e0748c7097051d2b0784c22861da9f62af2860e7af79f866d8c8eda121b", kill_on_drop: false }` [INFO] [stdout] 71299e0748c7097051d2b0784c22861da9f62af2860e7af79f866d8c8eda121b [INFO] checking xDarksome/reqwest-leaky-bucket against try#0c9c19b42881b7ee3d3f268d2369726c7f8dddfd for pr-127656 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FxDarksome%2Freqwest-leaky-bucket" "/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/xDarksome/reqwest-leaky-bucket on toolchain 0c9c19b42881b7ee3d3f268d2369726c7f8dddfd [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0c9c19b42881b7ee3d3f268d2369726c7f8dddfd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/xDarksome/reqwest-leaky-bucket [INFO] finished tweaking git repo https://github.com/xDarksome/reqwest-leaky-bucket [INFO] tweaked toml for git repo https://github.com/xDarksome/reqwest-leaky-bucket written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/xDarksome/reqwest-leaky-bucket 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" "+0c9c19b42881b7ee3d3f268d2369726c7f8dddfd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Locking 1 package to latest compatible version [INFO] [stderr] Updating reqwest-leaky-bucket v0.1.0 (/workspace/builds/worker-0-tc2/source) -> v0.2.0 [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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+0c9c19b42881b7ee3d3f268d2369726c7f8dddfd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stderr] Error response from daemon: mkdir /var/lib/docker/image/overlay2/layerdb/mounts/10a4ebf330516fa2fb5951679fc1fbd4a4f52d698ca07e16f571de64b1607ec4: no space left on device [INFO] checking xDarksome/reqwest-leaky-bucket against try#0c9c19b42881b7ee3d3f268d2369726c7f8dddfd for pr-127656 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FxDarksome%2Freqwest-leaky-bucket" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'... [INFO] [stderr] done. [INFO] [stderr] fatal: unable to write new index file [INFO] [stderr] warning: Clone succeeded, but checkout failed. [INFO] [stderr] You can inspect what was checked out with 'git status' [INFO] [stderr] and retry with 'git restore --source=HEAD :/' [INFO] [stderr] [ERROR] this task or one of its parent failed! [ERROR] failed to checkout https://github.com/xDarksome/reqwest-leaky-bucket [ERROR] caused by: command failed: exit status: 128 [ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.