[INFO] fetching crate niobium 0.0.0...
[INFO] testing niobium-0.0.0 against try#d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2 for pr-86479
[INFO] extracting crate niobium 0.0.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate niobium 0.0.0 on toolchain d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate niobium 0.0.0
[INFO] finished tweaking crates.io crate niobium 0.0.0
[INFO] tweaked toml for crates.io crate niobium 0.0.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate niobium 0.0.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 85b40db16acb4f05729b1ad9b61e103e9d4642b8ed6c29bdfbf568e579fabddb
[INFO] running `Command { std: "docker" "start" "-a" "85b40db16acb4f05729b1ad9b61e103e9d4642b8ed6c29bdfbf568e579fabddb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "85b40db16acb4f05729b1ad9b61e103e9d4642b8ed6c29bdfbf568e579fabddb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "85b40db16acb4f05729b1ad9b61e103e9d4642b8ed6c29bdfbf568e579fabddb", kill_on_drop: false }`
[INFO] [stdout] 85b40db16acb4f05729b1ad9b61e103e9d4642b8ed6c29bdfbf568e579fabddb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a369698ee009ee9b7d2cec8ac47424615dc99d4ab4e408d3353883e82af0ca88
[INFO] running `Command { std: "docker" "start" "-a" "a369698ee009ee9b7d2cec8ac47424615dc99d4ab4e408d3353883e82af0ca88", kill_on_drop: false }`
[INFO] [stderr]    Compiling niobium v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.34s
[INFO] running `Command { std: "docker" "inspect" "a369698ee009ee9b7d2cec8ac47424615dc99d4ab4e408d3353883e82af0ca88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a369698ee009ee9b7d2cec8ac47424615dc99d4ab4e408d3353883e82af0ca88", kill_on_drop: false }`
[INFO] [stdout] a369698ee009ee9b7d2cec8ac47424615dc99d4ab4e408d3353883e82af0ca88
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dd0c2abf8ae0fa8e7de3ed0e0bde352394bb7a7ffab2bc205b93341f62f35ff3
[INFO] running `Command { std: "docker" "start" "-a" "dd0c2abf8ae0fa8e7de3ed0e0bde352394bb7a7ffab2bc205b93341f62f35ff3", kill_on_drop: false }`
[INFO] [stderr]    Compiling niobium v0.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: language item required, but not found: `eh_personality`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `niobium` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "dd0c2abf8ae0fa8e7de3ed0e0bde352394bb7a7ffab2bc205b93341f62f35ff3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd0c2abf8ae0fa8e7de3ed0e0bde352394bb7a7ffab2bc205b93341f62f35ff3", kill_on_drop: false }`
[INFO] [stdout] dd0c2abf8ae0fa8e7de3ed0e0bde352394bb7a7ffab2bc205b93341f62f35ff3