[INFO] cloning repository https://github.com/ethanwritescode/QStatsRustRewrite
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ethanwritescode/QStatsRustRewrite" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fethanwritescode%2FQStatsRustRewrite", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fethanwritescode%2FQStatsRustRewrite'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3fb04e6dde507db82f04e99e9b794931c7fb3533
[INFO] documenting ethanwritescode/QStatsRustRewrite against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fethanwritescode%2FQStatsRustRewrite" "/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/ethanwritescode/QStatsRustRewrite on toolchain beta-2020-08-29
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ethanwritescode/QStatsRustRewrite
[INFO] finished tweaking git repo https://github.com/ethanwritescode/QStatsRustRewrite
[INFO] tweaked toml for git repo https://github.com/ethanwritescode/QStatsRustRewrite written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/ethanwritescode/QStatsRustRewrite already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded spin v0.5.2
[INFO] [stderr]   Downloaded webpki-roots v0.18.0
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.65
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.65
[INFO] [stderr]   Downloaded indexmap v1.4.0
[INFO] [stderr]   Downloaded untrusted v0.7.1
[INFO] [stderr]   Downloaded serde_with v1.4.0
[INFO] [stderr]   Downloaded async-attributes v1.1.1
[INFO] [stderr]   Downloaded match_cfg v0.1.0
[INFO] [stderr]   Downloaded hex v0.4.2
[INFO] [stderr]   Downloaded kv-log-macro v1.0.7
[INFO] [stderr]   Downloaded resolv-conf v0.6.3
[INFO] [stderr]   Downloaded sha2 v0.8.2
[INFO] [stderr]   Downloaded typed-builder v0.3.0
[INFO] [stderr]   Downloaded dotenv v0.15.0
[INFO] [stderr]   Downloaded uuid v0.8.1
[INFO] [stderr]   Downloaded ipconfig v0.2.2
[INFO] [stderr]   Downloaded hyper-rustls v0.20.0
[INFO] [stderr]   Downloaded bson v1.0.0
[INFO] [stderr]   Downloaded proc-macro-error v1.0.3
[INFO] [stderr]   Downloaded thiserror-impl v1.0.20
[INFO] [stderr]   Downloaded err-derive v0.2.4
[INFO] [stderr]   Downloaded thiserror v1.0.20
[INFO] [stderr]   Downloaded futures-intrusive v0.3.1
[INFO] [stderr]   Downloaded trust-dns-proto v0.19.5
[INFO] [stderr]   Downloaded reqwest v0.10.6
[INFO] [stderr]   Downloaded rustls v0.17.0
[INFO] [stderr]   Downloaded trust-dns-resolver v0.19.5
[INFO] [stderr]   Downloaded async-std v1.5.0
[INFO] [stderr]   Downloaded rustls v0.16.0
[INFO] [stderr]   Downloaded webpki-roots v0.19.0
[INFO] [stderr]   Downloaded serenity v0.8.6
[INFO] [stderr]   Downloaded mongodb v1.0.0
[INFO] [stderr]   Downloaded js-sys v0.3.42
[INFO] [stderr]   Downloaded tracing v0.1.16
[INFO] [stderr]   Downloaded sct v0.6.0
[INFO] [stderr]   Downloaded proc-macro-error-attr v1.0.3
[INFO] [stderr]   Downloaded ring v0.16.15
[INFO] [stderr]   Downloaded md-5 v0.8.0
[INFO] [stderr]   Downloaded serde_json v1.0.56
[INFO] [stderr]   Downloaded tokio-rustls v0.13.1
[INFO] [stderr]   Downloaded wasm-bindgen-futures v0.4.15
[INFO] [stderr]   Downloaded hostname v0.3.1
[INFO] [stderr]   Downloaded async-task v1.3.1
[INFO] [stderr]   Downloaded futures-timer v2.0.2
[INFO] [stderr]   Downloaded md5 v0.6.1
[INFO] [stderr]   Downloaded rustversion v1.0.3
[INFO] [stderr]   Downloaded hmac v0.7.1
[INFO] [stderr]   Downloaded os_info v2.0.6
[INFO] [stderr]   Downloaded pbkdf2 v0.3.0
[INFO] [stderr]   Downloaded serde_with_macros v1.1.0
[INFO] [stderr]   Downloaded take_mut v0.2.2
[INFO] [stderr]   Downloaded stringprep v0.1.2
[INFO] [stderr]   Downloaded strsim v0.10.0
[INFO] [stderr]   Downloaded async-trait v0.1.36
[INFO] [stderr]   Downloaded enum-as-inner v0.3.2
[INFO] [stderr]   Downloaded webpki v0.21.3
[INFO] [stderr]   Downloaded web-sys v0.3.42
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.65
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.65
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.65
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] aa7dd0da64be2353a745115ef0d6d9de64dba996ca04091b0e8340906248b05d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "aa7dd0da64be2353a745115ef0d6d9de64dba996ca04091b0e8340906248b05d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aa7dd0da64be2353a745115ef0d6d9de64dba996ca04091b0e8340906248b05d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa7dd0da64be2353a745115ef0d6d9de64dba996ca04091b0e8340906248b05d", kill_on_drop: false }`
[INFO] [stdout] aa7dd0da64be2353a745115ef0d6d9de64dba996ca04091b0e8340906248b05d
[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" "RUSTDOCFLAGS=--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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a208e441892ef3be0a1ed1548f34e95ea1b18f44cff3bc216bec07356bba1f8c
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "a208e441892ef3be0a1ed1548f34e95ea1b18f44cff3bc216bec07356bba1f8c", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_json v1.0.56
[INFO] [stderr]    Compiling serenity v0.8.6
[INFO] [stderr]     Checking ring v0.16.15
[INFO] [stderr]     Checking tracing v0.1.16
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking parking_lot_core v0.7.2
[INFO] [stderr]     Checking hostname v0.3.1
[INFO] [stderr]     Checking backtrace v0.3.50
[INFO] [stderr]     Checking async-task v1.3.1
[INFO] [stderr]     Checking os_info v2.0.6
[INFO] [stderr]     Checking openssl-sys v0.9.58
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]     Checking flate2 v1.0.16
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling rustversion v1.0.3
[INFO] [stderr]    Compiling enum-as-inner v0.3.2
[INFO] [stderr]    Compiling async-trait v0.1.36
[INFO] [stderr]    Compiling async-attributes v1.1.1
[INFO] [stderr]    Compiling serde_with_macros v1.1.0
[INFO] [stderr]    Compiling derivative v2.1.1
[INFO] [stderr]     Checking input_buffer v0.2.0
[INFO] [stderr]     Checking resolv-conf v0.6.3
[INFO] [stderr]    Compiling typed-builder v0.3.0
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking chrono v0.4.13
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Checking parking_lot v0.10.2
[INFO] [stderr]     Checking uuid v0.8.1
[INFO] [stderr]     Checking tungstenite v0.9.2
[INFO] [stderr]     Checking openssl v0.10.30
[INFO] [stderr]     Checking futures-intrusive v0.3.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.3
[INFO] [stderr] error: could not compile `derivative`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name derivative /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/derivative-2.1.1/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type proc-macro --emit=dep-info,link -C prefer-dynamic -Cembed-bitcode=no -C debuginfo=2 -C metadata=2c7c3da24c56687b -C extra-filename=-2c7c3da24c56687b --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-327cd92f1d94740b.rlib --extern quote=/opt/rustwide/target/debug/deps/libquote-1342edecf3458939.rlib --extern syn=/opt/rustwide/target/debug/deps/libsyn-59ab231a2308348c.rlib --extern proc_macro --cap-lints allow` (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" "a208e441892ef3be0a1ed1548f34e95ea1b18f44cff3bc216bec07356bba1f8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a208e441892ef3be0a1ed1548f34e95ea1b18f44cff3bc216bec07356bba1f8c", kill_on_drop: false }`
[INFO] [stdout] a208e441892ef3be0a1ed1548f34e95ea1b18f44cff3bc216bec07356bba1f8c