[INFO] fetching crate dbuff 0.1.0...
[INFO] testing dbuff-0.1.0 against 1.99.0-beta.8+cargoflags=--release for beta-release-1.100-2
[INFO] extracting crate dbuff 0.1.0 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate dbuff 0.1.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate dbuff 0.1.0
[INFO] tweaked toml for crates.io crate dbuff 0.1.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate dbuff 0.1.0 on toolchain 1.99.0-beta.8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate dbuff 0.1.0 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" "+1.99.0-beta.8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded archery v1.2.2
[INFO] [stderr]   Downloaded wherror v2.3.1
[INFO] [stderr]   Downloaded rpds v1.2.0
[INFO] [stderr]   Downloaded triomphe v0.1.15
[INFO] [stderr]   Downloaded arc-swap v1.9.0
[INFO] [stderr]   Downloaded wherror-impl v2.3.1
[INFO] [stderr]   Downloaded error-stack v0.7.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 371fda6d474a18cb1aae5618d24ed69cf09eca277ec2defa205d97bbf0ffbd74
[INFO] running `Command { std: "docker" "start" "371fda6d474a18cb1aae5618d24ed69cf09eca277ec2defa205d97bbf0ffbd74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "371fda6d474a18cb1aae5618d24ed69cf09eca277ec2defa205d97bbf0ffbd74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "371fda6d474a18cb1aae5618d24ed69cf09eca277ec2defa205d97bbf0ffbd74" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "371fda6d474a18cb1aae5618d24ed69cf09eca277ec2defa205d97bbf0ffbd74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "371fda6d474a18cb1aae5618d24ed69cf09eca277ec2defa205d97bbf0ffbd74" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.184
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling wherror v2.3.1
[INFO] [stderr]    Compiling slab v0.4.12
[INFO] [stderr]    Compiling kanal v0.1.1
[INFO] [stderr]    Compiling arc-swap v1.9.0
[INFO] [stderr]    Compiling errno v0.3.14
[INFO] [stderr]    Compiling parking_lot_core v0.9.12
[INFO] [stderr]    Compiling socket2 v0.6.3
[INFO] [stderr]    Compiling mio v1.2.0
[INFO] [stderr]    Compiling signal-hook-registry v1.4.8
[INFO] [stderr]    Compiling parking_lot v0.12.5
[INFO] [stderr]    Compiling futures-macro v0.3.32
[INFO] [stderr]    Compiling wherror-impl v2.3.1
[INFO] [stderr]    Compiling tokio-macros v2.7.0
[INFO] [stderr]    Compiling async-trait v0.1.89
[INFO] [stderr]    Compiling tokio v1.51.0
[INFO] [stderr]    Compiling futures-util v0.3.32
[INFO] [stderr]    Compiling dbuff v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 17.06s
[INFO] running `Command { std: "docker" "inspect" "371fda6d474a18cb1aae5618d24ed69cf09eca277ec2defa205d97bbf0ffbd74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "371fda6d474a18cb1aae5618d24ed69cf09eca277ec2defa205d97bbf0ffbd74" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "test" "--frozen" "--no-run" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling triomphe v0.1.15
[INFO] [stderr]    Compiling archery v1.2.2
[INFO] [stderr]    Compiling rpds v1.2.0
[INFO] [stderr]    Compiling dbuff v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `error_stack`
[INFO] [stdout]  --> examples/tracked_error_report.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use error_stack::Report;
[INFO] [stdout]   |     ^^^^^^^^^^^ use of unresolved module or unlinked crate `error_stack`
[INFO] [stdout]   |
[INFO] [stdout] help: to make use of source file examples/error_stack.rs, use `mod error_stack` in this file to declare the module
[INFO] [stdout]   |
[INFO] [stdout] 1 + mod error_stack;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `dbuff` (example "tracked_error_report") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "371fda6d474a18cb1aae5618d24ed69cf09eca277ec2defa205d97bbf0ffbd74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "371fda6d474a18cb1aae5618d24ed69cf09eca277ec2defa205d97bbf0ffbd74", kill_on_drop: false }`
[INFO] [stdout] 371fda6d474a18cb1aae5618d24ed69cf09eca277ec2defa205d97bbf0ffbd74
