[INFO] fetching crate k2_tree 0.5.3...
[INFO] checking k2_tree-0.5.3 against master#f609b7e0586f81fefb3523e3e17adf779ac416be for pr-129466-2
[INFO] extracting crate k2_tree 0.5.3 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate k2_tree 0.5.3 on toolchain f609b7e0586f81fefb3523e3e17adf779ac416be
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate k2_tree 0.5.3
[INFO] finished tweaking crates.io crate k2_tree 0.5.3
[INFO] tweaked toml for crates.io crate k2_tree 0.5.3 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 31 packages to latest compatible versions
[INFO] [stderr]       Adding bitvec v0.17.4 (available: v1.0.1)
[INFO] [stderr]       Adding getrandom v0.1.16 (available: v0.2.15)
[INFO] [stderr]       Adding hashbrown v0.12.3 (available: v0.14.5)
[INFO] [stderr]       Adding indexmap v1.9.3 (available: v2.5.0)
[INFO] [stderr]       Adding radium v0.3.0 (available: v1.1.0)
[INFO] [stderr]       Adding rand v0.7.3 (available: v0.8.5)
[INFO] [stderr]       Adding rand_chacha v0.2.2 (available: v0.3.1)
[INFO] [stderr]       Adding rand_core v0.5.1 (available: v0.6.4)
[INFO] [stderr]       Adding rand_hc v0.2.0 (available: v0.3.2)
[INFO] [stderr]       Adding serde_yaml v0.8.26 (available: v0.9.34+deprecated)
[INFO] [stderr]       Adding wasi v0.9.0+wasi-snapshot-preview1 (available: v0.13.2+wasi-0.2.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bitvec v0.17.4
[INFO] [stderr]   Downloaded radium v0.3.0
[INFO] [stderr]   Downloaded serde_yaml v0.8.26
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cdc6e4a9a03c10943e22ff4c2b25101b885e7545182b979f681fb9cd8beac696
[INFO] running `Command { std: "docker" "start" "-a" "cdc6e4a9a03c10943e22ff4c2b25101b885e7545182b979f681fb9cd8beac696", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cdc6e4a9a03c10943e22ff4c2b25101b885e7545182b979f681fb9cd8beac696", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cdc6e4a9a03c10943e22ff4c2b25101b885e7545182b979f681fb9cd8beac696", kill_on_drop: false }`
[INFO] [stdout] cdc6e4a9a03c10943e22ff4c2b25101b885e7545182b979f681fb9cd8beac696
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5e5c0eae72e000c9599f114745202826e6f2074ff6491f28f6c175bd029147c4
[INFO] running `Command { std: "docker" "start" "-a" "5e5c0eae72e000c9599f114745202826e6f2074ff6491f28f6c175bd029147c4", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.159
[INFO] [stderr]     Checking either v1.13.0
[INFO] [stderr]     Checking radium v0.3.0
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]     Checking yaml-rust v0.4.5
[INFO] [stderr]    Compiling syn v2.0.77
[INFO] [stderr]     Checking bitvec v0.17.4
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
[INFO] [stderr]    Compiling serde_derive v1.0.210
[INFO] [stderr]     Checking zerocopy v0.7.35
[INFO] [stderr]     Checking ppv-lite86 v0.2.20
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking serde v1.0.210
[INFO] [stderr]     Checking serde_yaml v0.8.26
[INFO] [stderr]     Checking serde_json v1.0.128
[INFO] [stderr]     Checking k2_tree v0.5.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `datastore::*`
[INFO] [stdout]  --> src/tree/mod.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub use datastore::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: rustc interrupted by SIGSEGV, printing backtrace
[INFO] [stderr] 
[INFO] [stderr] /opt/rustwide/rustup-home/toolchains/f609b7e0586f81fefb3523e3e17adf779ac416be/lib/librustc_driver-67e992fc9ebdf5ae.so(+0x358ca33)[0x7252e598ca33]
[INFO] [stderr] /lib/x86_64-linux-gnu/libc.so.6(+0x42520)[0x7252e2219520]
[INFO] [stderr] /opt/rustwide/rustup-home/toolchains/f609b7e0586f81fefb3523e3e17adf779ac416be/lib/librustc_driver-67e992fc9ebdf5ae.so(+0x5290aa6)[0x7252e7690aa6]
[INFO] [stderr] 
[INFO] [stderr] ### cycle encountered after 3 frames with period 4
[INFO] [stderr] /opt/rustwide/rustup-home/toolchains/f609b7e0586f81fefb3523e3e17adf779ac416be/lib/librustc_driver-67e992fc9ebdf5ae.so(_RNvXsm_NtCsViG2ZvUjsM_12rustc_expand6expandNtB5_19InvocationCollectorNtNtCseX4YlmQ8sIZ_9rustc_ast9mut_visit10MutVisitor10visit_expr+0x93)[0x7252e768fd53]
[INFO] [stderr] /opt/rustwide/rustup-home/toolchains/f609b7e0586f81fefb3523e3e17adf779ac416be/lib/librustc_driver-67e992fc9ebdf5ae.so(+0x5290aa8)[0x7252e7690aa8]
[INFO] [stderr] /opt/rustwide/rustup-home/toolchains/f609b7e0586f81fefb3523e3e17adf779ac416be/lib/librustc_driver-67e992fc9ebdf5ae.so(_RNvXsm_NtCsViG2ZvUjsM_12rustc_expand6expandNtB5_19InvocationCollectorNtNtCseX4YlmQ8sIZ_9rustc_ast9mut_visit10MutVisitor10visit_expr+0x93)[0x7252e768fd53]
[INFO] [stderr] /opt/rustwide/rustup-home/toolchains/f609b7e0586f81fefb3523e3e17adf779ac416be/lib/librustc_driver-67e992fc9ebdf5ae.so(+0x5290aa8)[0x7252e7690aa8]
[INFO] [stderr] ### recursed 63 times
[INFO] [stderr] 
[INFO] [stderr] /opt/rustwide/rustup-home/toolchains/f609b7e0586f81fefb3523e3e17adf779ac416be/lib/librustc_driver-67e992fc9ebdf5ae.so(_RNvXsm_NtCsViG2ZvUjsM_12rustc_expand6expandNtB5_19InvocationCollectorNtNtCseX4YlmQ8sIZ_9rustc_ast9mut_visit10MutVisitor10visit_expr+0x93)[0x7252e768fd53]
[INFO] [stderr] 
[INFO] [stderr] note: rustc unexpectedly overflowed its stack! this is a bug
[INFO] [stderr] note: maximum backtrace depth reached, frames may have been lost
[INFO] [stderr] note: we would appreciate a report at https://github.com/rust-lang/rust
[INFO] [stderr] help: you can increase rustc's stack size by setting RUST_MIN_STACK=16777216
[INFO] [stderr] error: could not compile `k2_tree` (lib test)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/f609b7e0586f81fefb3523e3e17adf779ac416be/bin/rustc --crate-name k2_tree --edition=2018 src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 --test --check-cfg 'cfg(docsrs)' --check-cfg 'cfg(feature, values())' -C metadata=82e6663e2f4227fd -C extra-filename=-82e6663e2f4227fd --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bitvec=/opt/rustwide/target/debug/deps/libbitvec-051b4eafbb9c5742.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-bbd4694281e1cc7b.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-e0cfcd371f8665d5.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-331cf04b2efb30c3.rmeta --extern serde_yaml=/opt/rustwide/target/debug/deps/libserde_yaml-567f5f3e99b8f981.rmeta --cap-lints=forbid` (signal: 11, SIGSEGV: invalid memory reference)
[INFO] running `Command { std: "docker" "inspect" "5e5c0eae72e000c9599f114745202826e6f2074ff6491f28f6c175bd029147c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e5c0eae72e000c9599f114745202826e6f2074ff6491f28f6c175bd029147c4", kill_on_drop: false }`
[INFO] [stdout] 5e5c0eae72e000c9599f114745202826e6f2074ff6491f28f6c175bd029147c4