[INFO] cloning repository https://github.com/geigerzaehler/rust-ssb
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/geigerzaehler/rust-ssb" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgeigerzaehler%2Frust-ssb", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgeigerzaehler%2Frust-ssb'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2270c13649ef6ba897dc08d4f7b03a4a92f05689
[INFO] checking geigerzaehler/rust-ssb against master#893fadd11a52aa26fc19c67ee1b79f03d6a1bed3 for pr-77153
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgeigerzaehler%2Frust-ssb" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/geigerzaehler/rust-ssb on toolchain 893fadd11a52aa26fc19c67ee1b79f03d6a1bed3
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+893fadd11a52aa26fc19c67ee1b79f03d6a1bed3" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/geigerzaehler/rust-ssb
[INFO] removed 0 missing examples
[INFO] finished tweaking git repo https://github.com/geigerzaehler/rust-ssb
[INFO] tweaked toml for git repo https://github.com/geigerzaehler/rust-ssb written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/geigerzaehler/rust-ssb already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+893fadd11a52aa26fc19c67ee1b79f03d6a1bed3" "fetch" "--locked" "--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-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+893fadd11a52aa26fc19c67ee1b79f03d6a1bed3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 13ad98808587363b149f554ab2bc0ddffb7333d5e43b4f472d78d37b7557bb4a
[INFO] running `Command { std: "docker" "start" "-a" "13ad98808587363b149f554ab2bc0ddffb7333d5e43b4f472d78d37b7557bb4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "13ad98808587363b149f554ab2bc0ddffb7333d5e43b4f472d78d37b7557bb4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "13ad98808587363b149f554ab2bc0ddffb7333d5e43b4f472d78d37b7557bb4a", kill_on_drop: false }`
[INFO] [stdout] 13ad98808587363b149f554ab2bc0ddffb7333d5e43b4f472d78d37b7557bb4a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+893fadd11a52aa26fc19c67ee1b79f03d6a1bed3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7ee800cda0d8173ecfd459c0b0763b1a891aa41901188be6fa9aab1917912cb8
[INFO] running `Command { std: "docker" "start" "-a" "7ee800cda0d8173ecfd459c0b0763b1a891aa41901188be6fa9aab1917912cb8", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.41
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.68
[INFO] [stderr]    Compiling serde_derive v1.0.116
[INFO] [stderr]    Compiling serde v1.0.116
[INFO] [stderr]     Checking regex-syntax v0.6.18
[INFO] [stderr]    Compiling pin-project-internal v0.4.23
[INFO] [stderr]     Checking cache-padded v1.1.1
[INFO] [stderr]     Checking pin-project-lite v0.1.7
[INFO] [stderr]    Compiling wasm-bindgen v0.2.68
[INFO] [stderr]     Checking fastrand v1.3.5
[INFO] [stderr]     Checking waker-fn v1.1.0
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]     Checking parking v2.0.0
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking event-listener v2.4.0
[INFO] [stderr]    Compiling pkg-config v0.3.18
[INFO] [stderr]     Checking vec-arena v0.5.2
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]     Checking scoped-tls v1.0.0
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling peg-runtime v0.6.3
[INFO] [stderr]    Compiling anyhow v1.0.32
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling bit-vec v0.6.2
[INFO] [stderr]     Checking encode_unicode v0.3.6
[INFO] [stderr]     Checking never v0.1.0
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking tracing-core v0.1.16
[INFO] [stderr]     Checking sharded-slab v0.0.9
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking futures-channel v0.3.5
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking concurrent-queue v1.2.2
[INFO] [stderr]     Checking async-mutex v1.3.0
[INFO] [stderr]     Checking owning_ref v0.3.3
[INFO] [stderr]     Checking tokio v0.2.22
[INFO] [stderr]     Checking predicates v1.0.5
[INFO] [stderr]    Compiling proc-macro2 v1.0.21
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling bit-set v0.5.2
[INFO] [stderr]     Checking async-channel v1.4.2
[INFO] [stderr]     Checking multitask v0.2.0
[INFO] [stderr]     Checking getrandom v0.1.15
[INFO] [stderr]     Checking socket2 v0.3.15
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking dirs v1.0.5
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking nix v0.18.0
[INFO] [stderr]    Compiling libsodium-sys v0.2.6
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking dirs v3.0.1
[INFO] [stderr]     Checking smallvec v0.6.13
[INFO] [stderr]     Checking polling v0.1.9
[INFO] [stderr]     Checking kv-log-macro v1.0.7
[INFO] [stderr]     Checking tracing-log v0.1.1
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking futures-lite v0.1.11
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking assert_cmd v1.0.1
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking term v0.5.2
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand_xorshift v0.2.0
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking parking_lot_core v0.2.14
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]    Compiling peg-macros v0.6.3
[INFO] [stderr]     Checking async-io v0.1.11
[INFO] [stderr]     Checking blocking v0.5.2
[INFO] [stderr]     Checking parking_lot v0.4.8
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking chashmap v2.2.2
[INFO] [stderr]     Checking async-executor v0.1.2
[INFO] [stderr]     Checking chrono v0.4.15
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking rusty-fork v0.3.0
[INFO] [stderr]     Checking goldenfile v1.1.0
[INFO] [stderr]     Checking matchers v0.0.1
[INFO] [stderr]     Checking proptest v0.10.1
[INFO] [stderr]    Compiling proptest v0.10.1 (https://github.com/thomaseizinger/proptest?rev=db7f042e66ebbbe8ddb73068e610dc3946dacd15#db7f042e)
[INFO] [stderr]     Checking peg v0.6.3
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.68
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.68
[INFO] [stderr]    Compiling proptest-derive v0.2.0
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]    Compiling tracing-attributes v0.1.11
[INFO] [stderr]    Compiling async-attributes v1.1.1
[INFO] [stderr]    Compiling structopt-derive v0.4.10
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]    Compiling async-trait v0.1.40
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.68
[INFO] [stderr] error: could not compile `proptest`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name proptest --edition=2018 /opt/rustwide/cargo-home/git/checkouts/proptest-e22742c3cfa21bf2/db7f042/proptest/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="bit-set"' --cfg 'feature="break-dead-code"' --cfg 'feature="default"' --cfg 'feature="fork"' --cfg 'feature="lazy_static"' --cfg 'feature="quick-error"' --cfg 'feature="regex-syntax"' --cfg 'feature="rusty-fork"' --cfg 'feature="std"' --cfg 'feature="tempfile"' --cfg 'feature="timeout"' -C metadata=db88054e186f0b29 -C extra-filename=-db88054e186f0b29 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bit_set=/opt/rustwide/target/debug/deps/libbit_set-d901314cb4415997.rmeta --extern bitflags=/opt/rustwide/target/debug/deps/libbitflags-56eca94422237621.rmeta --extern byteorder=/opt/rustwide/target/debug/deps/libbyteorder-8e7ddb72171cc91f.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-7c0477ae3415ac1f.rmeta --extern num_traits=/opt/rustwide/target/debug/deps/libnum_traits-360f07bcd56f866a.rmeta --extern quick_error=/opt/rustwide/target/debug/deps/libquick_error-04f7773cc8ada14a.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-2bfc47dcecd559e9.rmeta --extern rand_chacha=/opt/rustwide/target/debug/deps/librand_chacha-d29ada9088105ff6.rmeta --extern rand_xorshift=/opt/rustwide/target/debug/deps/librand_xorshift-f6d776a6c6c462b6.rmeta --extern regex_syntax=/opt/rustwide/target/debug/deps/libregex_syntax-e84a84df48f8cb81.rmeta --extern rusty_fork=/opt/rustwide/target/debug/deps/librusty_fork-7fb4b94b0bffb85f.rmeta --extern tempfile=/opt/rustwide/target/debug/deps/libtempfile-81c85eee1c8bd83b.rmeta --cap-lints allow --cap-lints=forbid` (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" "7ee800cda0d8173ecfd459c0b0763b1a891aa41901188be6fa9aab1917912cb8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ee800cda0d8173ecfd459c0b0763b1a891aa41901188be6fa9aab1917912cb8", kill_on_drop: false }`
[INFO] [stdout] 7ee800cda0d8173ecfd459c0b0763b1a891aa41901188be6fa9aab1917912cb8