[INFO] cloning repository https://github.com/out-of-cheese-error/rust-hypothesis
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/out-of-cheese-error/rust-hypothesis" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fout-of-cheese-error%2Frust-hypothesis", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fout-of-cheese-error%2Frust-hypothesis'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 205cac2db855019c8cddc15a65e638983a6d2a41
[INFO] checking out-of-cheese-error/rust-hypothesis against 1.55.0 for beta-1.56-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fout-of-cheese-error%2Frust-hypothesis" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/out-of-cheese-error/rust-hypothesis on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/out-of-cheese-error/rust-hypothesis
[INFO] finished tweaking git repo https://github.com/out-of-cheese-error/rust-hypothesis
[INFO] tweaked toml for git repo https://github.com/out-of-cheese-error/rust-hypothesis written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/out-of-cheese-error/rust-hypothesis already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded derive_builder_core v0.9.0
[INFO] [stderr]   Downloaded color-spantrace v0.1.6
[INFO] [stderr]   Downloaded predicates v1.0.7
[INFO] [stderr]   Downloaded tracing-subscriber v0.2.8
[INFO] [stderr]   Downloaded predicates-core v1.0.0
[INFO] [stderr]   Downloaded predicates-tree v1.0.0
[INFO] [stderr]   Downloaded futures-macro v0.3.13
[INFO] [stderr]   Downloaded proc-macro-error-attr v1.0.3
[INFO] [stderr]   Downloaded futures-executor v0.3.13
[INFO] [stderr]   Downloaded assert_cmd v1.0.3
[INFO] [stderr]   Downloaded wait-timeout v0.2.0
[INFO] [stderr]   Downloaded sharded-slab v0.0.9
[INFO] [stderr]   Downloaded eyre v0.6.5
[INFO] [stderr]   Downloaded pin-project v1.0.1
[INFO] [stderr]   Downloaded derive_builder v0.9.0
[INFO] [stderr]   Downloaded indenter v0.3.0
[INFO] [stderr]   Downloaded futures v0.3.13
[INFO] [stderr]   Downloaded proc-macro-error v1.0.3
[INFO] [stderr]   Downloaded pin-project-internal v1.0.1
[INFO] [stderr]   Downloaded rustls v0.19.0
[INFO] [stderr]   Downloaded owo-colors v1.2.1
[INFO] [stderr]   Downloaded color-eyre v0.5.10
[INFO] [stderr]   Downloaded web-sys v0.3.42
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7311048660b7bd8ef7cf45b2a6a4ab276d7cadf57dd119ab20b8cac76f4fd193
[INFO] running `Command { std: "docker" "start" "-a" "7311048660b7bd8ef7cf45b2a6a4ab276d7cadf57dd119ab20b8cac76f4fd193", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7311048660b7bd8ef7cf45b2a6a4ab276d7cadf57dd119ab20b8cac76f4fd193", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7311048660b7bd8ef7cf45b2a6a4ab276d7cadf57dd119ab20b8cac76f4fd193", kill_on_drop: false }`
[INFO] [stdout] 7311048660b7bd8ef7cf45b2a6a4ab276d7cadf57dd119ab20b8cac76f4fd193
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+1.55.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f355065fc1da5c5b1ffc1ec57aa698a2cbc622bcd96c21cb8b3589a091507be0
[INFO] running `Command { std: "docker" "start" "-a" "f355065fc1da5c5b1ffc1ec57aa698a2cbc622bcd96c21cb8b3589a091507be0", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.64
[INFO] [stderr]    Compiling libc v0.2.73
[INFO] [stderr]     Checking futures-core v0.3.13
[INFO] [stderr]     Checking futures-sink v0.3.13
[INFO] [stderr]    Compiling pin-project-internal v0.4.22
[INFO] [stderr]     Checking futures-task v0.3.13
[INFO] [stderr]     Checking futures-io v0.3.13
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling strsim v0.9.3
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]     Checking gimli v0.22.0
[INFO] [stderr]     Checking httpdate v0.3.2
[INFO] [stderr]    Compiling eyre v0.6.5
[INFO] [stderr]     Checking indenter v0.3.0
[INFO] [stderr]    Compiling derive_builder v0.9.0
[INFO] [stderr]     Checking object v0.20.0
[INFO] [stderr]     Checking owo-colors v1.2.1
[INFO] [stderr]     Checking predicates-core v1.0.0
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking regex-syntax v0.6.18
[INFO] [stderr]     Checking treeline v0.1.0
[INFO] [stderr]     Checking normalize-line-endings v0.3.0
[INFO] [stderr]     Checking dotenv v0.15.0
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking tracing-core v0.1.11
[INFO] [stderr]    Compiling tokio v1.4.0
[INFO] [stderr]    Compiling ring v0.16.15
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.3
[INFO] [stderr]     Checking sharded-slab v0.0.9
[INFO] [stderr]    Compiling proc-macro-error v1.0.3
[INFO] [stderr]    Compiling hashbrown v0.8.1
[INFO] [stderr]    Compiling indexmap v1.5.0
[INFO] [stderr]     Checking form_urlencoded v1.0.0
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling encoding_rs v0.8.23
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]     Checking miniz_oxide v0.4.0
[INFO] [stderr]     Checking http-body v0.4.0
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]     Checking aho-corasick v0.7.13
[INFO] [stderr]     Checking futures-channel v0.3.13
[INFO] [stderr]     Checking predicates-tree v1.0.0
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking url v2.2.1
[INFO] [stderr]     Checking tracing-subscriber v0.2.8
[INFO] [stderr]     Checking addr2line v0.13.0
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking mio v0.7.7
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking socket2 v0.3.19
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking backtrace v0.3.50
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]     Checking clap v2.33.1
[INFO] [stderr]     Checking float-cmp v0.8.0
[INFO] [stderr]     Checking bstr v0.2.15
[INFO] [stderr]     Checking webpki v0.21.3
[INFO] [stderr]     Checking sct v0.6.0
[INFO] [stderr]     Checking predicates v1.0.7
[INFO] [stderr]     Checking rustls v0.19.0
[INFO] [stderr]     Checking webpki-roots v0.21.0
[INFO] [stderr]     Checking assert_cmd v1.0.3
[INFO] [stderr]    Compiling tracing-attributes v0.1.9
[INFO] [stderr]    Compiling tokio-macros v1.1.0
[INFO] [stderr]    Compiling futures-macro v0.3.13
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]    Compiling pin-project-internal v1.0.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]    Compiling darling_macro v0.10.2
[INFO] [stderr]     Checking futures-util v0.3.13
[INFO] [stderr] error: could not compile `serde_derive`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name serde_derive /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/serde_derive-1.0.125/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type proc-macro --emit=dep-info,link -C prefer-dynamic -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="default"' -C metadata=6d89d158067ce875 -C extra-filename=-6d89d158067ce875 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-17858077ac902bf7.rlib --extern quote=/opt/rustwide/target/debug/deps/libquote-06e00a111be99d27.rlib --extern syn=/opt/rustwide/target/debug/deps/libsyn-c52045b52d4f4d9a.rlib --extern proc_macro --cap-lints allow --cap-lints=warn --cfg underscore_consts` (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" "f355065fc1da5c5b1ffc1ec57aa698a2cbc622bcd96c21cb8b3589a091507be0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f355065fc1da5c5b1ffc1ec57aa698a2cbc622bcd96c21cb8b3589a091507be0", kill_on_drop: false }`
[INFO] [stdout] f355065fc1da5c5b1ffc1ec57aa698a2cbc622bcd96c21cb8b3589a091507be0
