[INFO] fetching crate monotree 0.1.3...
[INFO] testing monotree-0.1.3 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate monotree 0.1.3 into /workspace/builds/worker-99/source
[INFO] validating manifest of crates.io crate monotree 0.1.3 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate monotree 0.1.3
[INFO] finished tweaking crates.io crate monotree 0.1.3
[INFO] tweaked toml for crates.io crate monotree 0.1.3 written to /workspace/builds/worker-99/source/Cargo.toml
[INFO] crate crates.io crate monotree 0.1.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-99/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-99/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e0e583e06366c0aed45f7cbceb27cf60074ef27136b3f847302012ef0372c39e
[INFO] running `Command { std: "docker" "start" "-a" "e0e583e06366c0aed45f7cbceb27cf60074ef27136b3f847302012ef0372c39e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e0e583e06366c0aed45f7cbceb27cf60074ef27136b3f847302012ef0372c39e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e0e583e06366c0aed45f7cbceb27cf60074ef27136b3f847302012ef0372c39e", kill_on_drop: false }`
[INFO] [stdout] e0e583e06366c0aed45f7cbceb27cf60074ef27136b3f847302012ef0372c39e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-99/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-99/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] adb28f50a59cd53c81966b8ab4dd7a83e9873db1772e2b4c2b6c70f0aa6fabfa
[INFO] running `Command { std: "docker" "start" "-a" "adb28f50a59cd53c81966b8ab4dd7a83e9873db1772e2b4c2b6c70f0aa6fabfa", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.9
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling typenum v1.11.2
[INFO] [stderr]    Compiling version_check v0.9.1
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling serde v1.0.105
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]    Compiling bindgen v0.53.2
[INFO] [stderr]    Compiling proc-macro-hack v0.5.14
[INFO] [stderr]    Compiling ryu v1.0.3
[INFO] [stderr]    Compiling lazycell v1.2.1
[INFO] [stderr]    Compiling either v1.5.3
[INFO] [stderr]    Compiling itoa v0.4.5
[INFO] [stderr]    Compiling rayon-core v1.7.0
[INFO] [stderr]    Compiling byte-tools v0.3.1
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]    Compiling smallvec v1.2.0
[INFO] [stderr]    Compiling nodrop v0.1.14
[INFO] [stderr]    Compiling subtle v1.0.0
[INFO] [stderr]    Compiling constant_time_eq v0.1.5
[INFO] [stderr]    Compiling opaque-debug v0.2.3
[INFO] [stderr]    Compiling keccak v0.1.0
[INFO] [stderr]    Compiling oorandom v11.1.0
[INFO] [stderr]    Compiling arrayvec v0.5.1
[INFO] [stderr]    Compiling arrayref v0.3.6
[INFO] [stderr]    Compiling fake-simd v0.1.2
[INFO] [stderr]    Compiling hex v0.4.2
[INFO] [stderr]    Compiling clang-sys v0.29.2
[INFO] [stderr]    Compiling jobserver v0.1.21
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]    Compiling num_cpus v1.12.0
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling fs2 v0.4.3
[INFO] [stderr]    Compiling lock_api v0.3.3
[INFO] [stderr]    Compiling block-padding v0.1.5
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling parking_lot_core v0.7.0
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling cc v1.0.50
[INFO] [stderr]    Compiling nom v5.1.1
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling memoffset v0.5.4
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling num-iter v0.1.40
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling hashbrown v0.7.1
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling parking_lot v0.10.0
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr]    Compiling const-random-macro v0.1.8
[INFO] [stderr]    Compiling regex-automata v0.1.9
[INFO] [stderr]    Compiling fxhash v0.2.1
[INFO] [stderr]    Compiling generic-array v0.12.3
[INFO] [stderr]    Compiling blake2-rfc v0.2.18
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling blake3 v0.2.2
[INFO] [stderr]    Compiling digest v0.8.1
[INFO] [stderr]    Compiling block-buffer v0.7.3
[INFO] [stderr]    Compiling crypto-mac v0.7.0
[INFO] [stderr]    Compiling cexpr v0.4.0
[INFO] [stderr]    Compiling const-random v0.1.8
[INFO] [stderr]    Compiling criterion-plot v0.4.1
[INFO] [stderr]    Compiling ahash v0.3.2
[INFO] [stderr]    Compiling sha2 v0.8.1
[INFO] [stderr]    Compiling sha3 v0.8.2
[INFO] [stderr]    Compiling bstr v0.2.12
[INFO] [stderr]    Compiling serde_json v1.0.49
[INFO] [stderr]    Compiling plotters v0.2.12
[INFO] [stderr]    Compiling crossbeam-queue v0.2.1
[INFO] [stderr]    Compiling crossbeam-deque v0.7.3
[INFO] [stderr]    Compiling sled v0.31.0
[INFO] [stderr]    Compiling csv v1.1.3
[INFO] [stderr]    Compiling tinytemplate v1.0.3
[INFO] [stderr]    Compiling rayon v1.3.0
[INFO] [stderr]    Compiling num v0.2.1
[INFO] [stderr]    Compiling paste-impl v0.1.9
[INFO] [stderr]    Compiling serde_derive v1.0.105
[INFO] [stderr]    Compiling paste v0.1.9
[INFO] [stderr]    Compiling librocksdb-sys v6.6.4
[INFO] [stderr]    Compiling criterion v0.3.1
[INFO] [stderr] error: could not compile `criterion`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name criterion --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/criterion-0.3.1/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="default"' -C metadata=9482ff15b661c010 -C extra-filename=-9482ff15b661c010 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern atty=/opt/rustwide/target/debug/deps/libatty-109bd4dce2f13e70.rmeta --extern cast=/opt/rustwide/target/debug/deps/libcast-61626ad04d583bb3.rmeta --extern clap=/opt/rustwide/target/debug/deps/libclap-397d4821275c79db.rmeta --extern criterion_plot=/opt/rustwide/target/debug/deps/libcriterion_plot-2dd60a9ffcda5f32.rmeta --extern csv=/opt/rustwide/target/debug/deps/libcsv-b2c6b23955004b3b.rmeta --extern itertools=/opt/rustwide/target/debug/deps/libitertools-36196ea02ef080ec.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-86422d76b8bd90ed.rmeta --extern num_traits=/opt/rustwide/target/debug/deps/libnum_traits-142670fd7f9e697c.rmeta --extern oorandom=/opt/rustwide/target/debug/deps/liboorandom-413a864391facc47.rmeta --extern plotters=/opt/rustwide/target/debug/deps/libplotters-ec9a59a3f4bbc7a8.rmeta --extern rayon=/opt/rustwide/target/debug/deps/librayon-95681f65a35b3052.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-6ad9ad9177bb7ee6.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-d0e725f38d6788e6.rmeta --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-ee2b3efa5544fc2d.so --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-7941a849381119f9.rmeta --extern tinytemplate=/opt/rustwide/target/debug/deps/libtinytemplate-ceb9de7272b410b7.rmeta --extern walkdir=/opt/rustwide/target/debug/deps/libwalkdir-20fcfb7d82bad3e9.rmeta --cap-lints allow --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "adb28f50a59cd53c81966b8ab4dd7a83e9873db1772e2b4c2b6c70f0aa6fabfa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "adb28f50a59cd53c81966b8ab4dd7a83e9873db1772e2b4c2b6c70f0aa6fabfa", kill_on_drop: false }`
[INFO] [stdout] adb28f50a59cd53c81966b8ab4dd7a83e9873db1772e2b4c2b6c70f0aa6fabfa