[INFO] fetching crate k2_tree 0.5.3...
[INFO] checking k2_tree-0.5.3 against master#3139ff09e9d07f7700f8d15ed25a231e29c43627 for pr-121848-3
[INFO] extracting crate k2_tree 0.5.3 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate k2_tree 0.5.3 on toolchain 3139ff09e9d07f7700f8d15ed25a231e29c43627
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3139ff09e9d07f7700f8d15ed25a231e29c43627" "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-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3139ff09e9d07f7700f8d15ed25a231e29c43627" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 32 packages to latest compatible versions
[INFO] [stderr]       Adding bitvec v0.17.4 (latest: v1.0.1)
[INFO] [stderr]       Adding getrandom v0.1.16 (latest: v0.2.15)
[INFO] [stderr]       Adding hashbrown v0.12.3 (latest: v0.14.5)
[INFO] [stderr]       Adding indexmap v1.9.3 (latest: v2.4.0)
[INFO] [stderr]       Adding radium v0.3.0 (latest: v1.1.0)
[INFO] [stderr]       Adding rand v0.7.3 (latest: v0.8.5)
[INFO] [stderr]       Adding rand_chacha v0.2.2 (latest: v0.3.1)
[INFO] [stderr]       Adding rand_core v0.5.1 (latest: v0.6.4)
[INFO] [stderr]       Adding rand_hc v0.2.0 (latest: v0.3.2)
[INFO] [stderr]       Adding serde_yaml v0.8.26 (latest: v0.9.34+deprecated)
[INFO] [stderr]       Adding wasi v0.9.0+wasi-snapshot-preview1 (latest: 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" "+3139ff09e9d07f7700f8d15ed25a231e29c43627" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded radium v0.3.0
[INFO] [stderr]   Downloaded bitvec v0.17.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+3139ff09e9d07f7700f8d15ed25a231e29c43627" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c83c46263a25b6f737e00d7dba84cf2c0ec66219942c80b9f1a138f981cfa962
[INFO] running `Command { std: "docker" "start" "-a" "c83c46263a25b6f737e00d7dba84cf2c0ec66219942c80b9f1a138f981cfa962", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c83c46263a25b6f737e00d7dba84cf2c0ec66219942c80b9f1a138f981cfa962", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c83c46263a25b6f737e00d7dba84cf2c0ec66219942c80b9f1a138f981cfa962", kill_on_drop: false }`
[INFO] [stdout] c83c46263a25b6f737e00d7dba84cf2c0ec66219942c80b9f1a138f981cfa962
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+3139ff09e9d07f7700f8d15ed25a231e29c43627" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d24415143627864931d284ed6baa732b5cd5f043000af1b5a4b2f65d7011b3e1
[INFO] running `Command { std: "docker" "start" "-a" "d24415143627864931d284ed6baa732b5cd5f043000af1b5a4b2f65d7011b3e1", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.208
[INFO] [stderr]     Checking linked-hash-map v0.5.6
[INFO] [stderr]     Checking radium v0.3.0
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]     Checking either v1.13.0
[INFO] [stderr]    Compiling serde_derive v1.0.208
[INFO] [stderr]     Checking bitvec v0.17.4
[INFO] [stderr]     Checking yaml-rust v0.4.5
[INFO] [stderr]     Checking serde_json v1.0.125
[INFO] [stderr]     Checking serde_yaml v0.8.26
[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] [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]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.07s
[INFO] running `Command { std: "docker" "inspect" "d24415143627864931d284ed6baa732b5cd5f043000af1b5a4b2f65d7011b3e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d24415143627864931d284ed6baa732b5cd5f043000af1b5a4b2f65d7011b3e1", kill_on_drop: false }`
[INFO] [stdout] d24415143627864931d284ed6baa732b5cd5f043000af1b5a4b2f65d7011b3e1
[INFO] checking k2_tree-0.5.3 against try#a2cff3b7a9661c90ec0d581d3f3a69bb97c11138 for pr-121848-3
[INFO] extracting crate k2_tree 0.5.3 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate k2_tree 0.5.3 on toolchain a2cff3b7a9661c90ec0d581d3f3a69bb97c11138
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a2cff3b7a9661c90ec0d581d3f3a69bb97c11138" "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-4-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a2cff3b7a9661c90ec0d581d3f3a69bb97c11138" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 32 packages to latest compatible versions
[INFO] [stderr]       Adding bitvec v0.17.4 (latest: v1.0.1)
[INFO] [stderr]       Adding getrandom v0.1.16 (latest: v0.2.15)
[INFO] [stderr]       Adding hashbrown v0.12.3 (latest: v0.14.5)
[INFO] [stderr]       Adding indexmap v1.9.3 (latest: v2.4.0)
[INFO] [stderr]       Adding radium v0.3.0 (latest: v1.1.0)
[INFO] [stderr]       Adding rand v0.7.3 (latest: v0.8.5)
[INFO] [stderr]       Adding rand_chacha v0.2.2 (latest: v0.3.1)
[INFO] [stderr]       Adding rand_core v0.5.1 (latest: v0.6.4)
[INFO] [stderr]       Adding rand_hc v0.2.0 (latest: v0.3.2)
[INFO] [stderr]       Adding serde_yaml v0.8.26 (latest: v0.9.34+deprecated)
[INFO] [stderr]       Adding wasi v0.9.0+wasi-snapshot-preview1 (latest: 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" "+a2cff3b7a9661c90ec0d581d3f3a69bb97c11138" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+a2cff3b7a9661c90ec0d581d3f3a69bb97c11138" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c354c552a5d621f89eb3cd543c504e018c1a4abbafb832b06d10e93de26796cd
[INFO] running `Command { std: "docker" "start" "-a" "c354c552a5d621f89eb3cd543c504e018c1a4abbafb832b06d10e93de26796cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c354c552a5d621f89eb3cd543c504e018c1a4abbafb832b06d10e93de26796cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c354c552a5d621f89eb3cd543c504e018c1a4abbafb832b06d10e93de26796cd", kill_on_drop: false }`
[INFO] [stdout] c354c552a5d621f89eb3cd543c504e018c1a4abbafb832b06d10e93de26796cd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+a2cff3b7a9661c90ec0d581d3f3a69bb97c11138" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 12ecc2f6835d41e5606a10aa34cc9fce94fc9b53104953fe9dc185b66c758e9c
[INFO] running `Command { std: "docker" "start" "-a" "12ecc2f6835d41e5606a10aa34cc9fce94fc9b53104953fe9dc185b66c758e9c", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.208
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]     Checking radium v0.3.0
[INFO] [stderr]     Checking either v1.13.0
[INFO] [stderr]     Checking linked-hash-map v0.5.6
[INFO] [stderr]    Compiling serde_derive v1.0.208
[INFO] [stderr]     Checking yaml-rust v0.4.5
[INFO] [stderr]     Checking bitvec v0.17.4
[INFO] [stderr]     Checking serde_yaml v0.8.26
[INFO] [stderr]     Checking serde_json v1.0.125
[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/a2cff3b7a9661c90ec0d581d3f3a69bb97c11138/lib/librustc_driver-ff845f0ef127a515.so(+0x35b7ef3)[0x7f000ffb7ef3]
[INFO] [stderr] /lib/x86_64-linux-gnu/libc.so.6(+0x42520)[0x7f000c819520]
[INFO] [stderr] /opt/rustwide/rustup-home/toolchains/a2cff3b7a9661c90ec0d581d3f3a69bb97c11138/lib/librustc_driver-ff845f0ef127a515.so(_RNvXsm_NtCs6I2XH27BaFs_12rustc_expand6expandNtB5_19InvocationCollectorNtNtCs9QMArEX7UWN_9rustc_ast9mut_visit10MutVisitor10visit_expr+0x8e)[0x7f0011cc7b4e]
[INFO] [stderr] 
[INFO] [stderr] ### cycle encountered after 3 frames with period 4
[INFO] [stderr] /opt/rustwide/rustup-home/toolchains/a2cff3b7a9661c90ec0d581d3f3a69bb97c11138/lib/librustc_driver-ff845f0ef127a515.so(+0x52c88a8)[0x7f0011cc88a8]
[INFO] [stderr] /opt/rustwide/rustup-home/toolchains/a2cff3b7a9661c90ec0d581d3f3a69bb97c11138/lib/librustc_driver-ff845f0ef127a515.so(_RNvXsm_NtCs6I2XH27BaFs_12rustc_expand6expandNtB5_19InvocationCollectorNtNtCs9QMArEX7UWN_9rustc_ast9mut_visit10MutVisitor10visit_expr+0x93)[0x7f0011cc7b53]
[INFO] [stderr] /opt/rustwide/rustup-home/toolchains/a2cff3b7a9661c90ec0d581d3f3a69bb97c11138/lib/librustc_driver-ff845f0ef127a515.so(+0x52c88a8)[0x7f0011cc88a8]
[INFO] [stderr] /opt/rustwide/rustup-home/toolchains/a2cff3b7a9661c90ec0d581d3f3a69bb97c11138/lib/librustc_driver-ff845f0ef127a515.so(_RNvXsm_NtCs6I2XH27BaFs_12rustc_expand6expandNtB5_19InvocationCollectorNtNtCs9QMArEX7UWN_9rustc_ast9mut_visit10MutVisitor10visit_expr+0x93)[0x7f0011cc7b53]
[INFO] [stderr] ### recursed 63 times
[INFO] [stderr] 
[INFO] [stderr] /opt/rustwide/rustup-home/toolchains/a2cff3b7a9661c90ec0d581d3f3a69bb97c11138/lib/librustc_driver-ff845f0ef127a515.so(+0x52c88a8)[0x7f0011cc88a8]
[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/a2cff3b7a9661c90ec0d581d3f3a69bb97c11138/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=57b85534a4e72e2d -C extra-filename=-57b85534a4e72e2d --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-856d34b8e3d0c3d4.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-bb0ebb6ae82dd227.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-fc09cf1b5bc9b635.rmeta --extern serde_yaml=/opt/rustwide/target/debug/deps/libserde_yaml-cbab5d63d632bc97.rmeta --cap-lints=forbid` (signal: 11, SIGSEGV: invalid memory reference)
[INFO] running `Command { std: "docker" "inspect" "12ecc2f6835d41e5606a10aa34cc9fce94fc9b53104953fe9dc185b66c758e9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "12ecc2f6835d41e5606a10aa34cc9fce94fc9b53104953fe9dc185b66c758e9c", kill_on_drop: false }`
[INFO] [stdout] 12ecc2f6835d41e5606a10aa34cc9fce94fc9b53104953fe9dc185b66c758e9c
