[INFO] fetching crate balanced-tree-index 2.3.0...
[INFO] testing balanced-tree-index-2.3.0 against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-7
[INFO] extracting crate balanced-tree-index 2.3.0 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate balanced-tree-index 2.3.0
[INFO] finished tweaking crates.io crate balanced-tree-index 2.3.0
[INFO] tweaked toml for crates.io crate balanced-tree-index 2.3.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate balanced-tree-index 2.3.0 on toolchain c2e32f1c9652b13ed99608599c1e855462f421f3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 7 packages to latest compatible versions
[INFO] [stderr]       Adding rand_core v0.6.4 (available: v0.9.3)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4847e91b9831950828abd9ab533259869e57aab83b9dbbb93866d4823d4f56b6
[INFO] running `Command { std: "docker" "start" "-a" "4847e91b9831950828abd9ab533259869e57aab83b9dbbb93866d4823d4f56b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4847e91b9831950828abd9ab533259869e57aab83b9dbbb93866d4823d4f56b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4847e91b9831950828abd9ab533259869e57aab83b9dbbb93866d4823d4f56b6", kill_on_drop: false }`
[INFO] [stdout] 4847e91b9831950828abd9ab533259869e57aab83b9dbbb93866d4823d4f56b6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2e9a10063bd52bbfdba2112175de0fa2406548287cb9f1da04d7946b650cc3b9
[INFO] running `Command { std: "docker" "start" "-a" "2e9a10063bd52bbfdba2112175de0fa2406548287cb9f1da04d7946b650cc3b9", kill_on_drop: false }`
[INFO] [stderr]    Compiling generic-array v0.14.9
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling aligned-array v1.0.1
[INFO] [stderr]    Compiling aligned-cmov v2.3.0
[INFO] [stderr]    Compiling balanced-tree-index v2.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.25s
[INFO] running `Command { std: "docker" "inspect" "2e9a10063bd52bbfdba2112175de0fa2406548287cb9f1da04d7946b650cc3b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e9a10063bd52bbfdba2112175de0fa2406548287cb9f1da04d7946b650cc3b9", kill_on_drop: false }`
[INFO] [stdout] 2e9a10063bd52bbfdba2112175de0fa2406548287cb9f1da04d7946b650cc3b9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7cca4d6277d72d527099f2e421b0f644945b74b05a5f73b10b5ec15b661d533f
[INFO] running `Command { std: "docker" "start" "-a" "7cca4d6277d72d527099f2e421b0f644945b74b05a5f73b10b5ec15b661d533f", kill_on_drop: false }`
[INFO] [stderr]    Compiling balanced-tree-index v2.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `test_helper`
[INFO] [stdout]    --> src/lib.rs:231:9
[INFO] [stdout]     |
[INFO] [stdout] 231 |         test_helper::run_with_several_seeds(|mut rng| {
[INFO] [stdout]     |         ^^^^^^^^^^^ use of unresolved module or unlinked crate `test_helper`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `test_helper`, use `cargo add test_helper` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `test_helper`
[INFO] [stdout]    --> src/lib.rs:252:9
[INFO] [stdout]     |
[INFO] [stdout] 252 |         test_helper::run_with_several_seeds(|mut rng| {
[INFO] [stdout]     |         ^^^^^^^^^^^ use of unresolved module or unlinked crate `test_helper`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `test_helper`, use `cargo add test_helper` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `test_helper`
[INFO] [stdout]    --> src/lib.rs:441:9
[INFO] [stdout]     |
[INFO] [stdout] 441 |         test_helper::run_with_several_seeds(|mut rng| {
[INFO] [stdout]     |         ^^^^^^^^^^^ use of unresolved module or unlinked crate `test_helper`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `test_helper`, use `cargo add test_helper` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `test_helper`
[INFO] [stdout]    --> src/lib.rs:470:9
[INFO] [stdout]     |
[INFO] [stdout] 470 |         test_helper::run_with_several_seeds(|mut rng| {
[INFO] [stdout]     |         ^^^^^^^^^^^ use of unresolved module or unlinked crate `test_helper`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `test_helper`, use `cargo add test_helper` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `balanced-tree-index` (lib test) due to 4 previous errors
[INFO] running `Command { std: "docker" "inspect" "7cca4d6277d72d527099f2e421b0f644945b74b05a5f73b10b5ec15b661d533f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7cca4d6277d72d527099f2e421b0f644945b74b05a5f73b10b5ec15b661d533f", kill_on_drop: false }`
[INFO] [stdout] 7cca4d6277d72d527099f2e421b0f644945b74b05a5f73b10b5ec15b661d533f