[INFO] cloning repository https://github.com/themeliolabs/Mil
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/themeliolabs/Mil" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthemeliolabs%2FMil", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthemeliolabs%2FMil'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a7bfc68ba29d4f5137a3b22ac8b361a045f402c9
[INFO] documenting themeliolabs/Mil against beta-2021-08-01 for beta-1.55-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthemeliolabs%2FMil" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/themeliolabs/Mil on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/themeliolabs/Mil
[INFO] finished tweaking git repo https://github.com/themeliolabs/Mil
[INFO] tweaked toml for git repo https://github.com/themeliolabs/Mil written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/themeliolabs/Mil already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ed25519 v1.1.1
[INFO] [stderr]   Downloaded env_logger v0.9.0
[INFO] [stderr]   Downloaded primitive-types v0.10.1
[INFO] [stderr]   Downloaded nom v6.2.1
[INFO] [stderr]   Downloaded bitvec v0.19.5
[INFO] [stderr]   Downloaded radium v0.5.3
[INFO] [stderr]   Downloaded uint v0.9.1
[INFO] [stderr]   Downloaded zeroize v1.4.0
[INFO] [stderr]   Downloaded psm v0.1.13
[INFO] [stderr]   Downloaded stacker v0.1.14
[INFO] [stderr]   Downloaded themelio-stf v0.5.1
[INFO] [stderr]   Downloaded fixed-hash v0.7.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 255b530755299adf1a0b58581bd583da7ecb6d8acc0cbfd5fb48d4e6b00aa25e
[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" "255b530755299adf1a0b58581bd583da7ecb6d8acc0cbfd5fb48d4e6b00aa25e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "255b530755299adf1a0b58581bd583da7ecb6d8acc0cbfd5fb48d4e6b00aa25e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "255b530755299adf1a0b58581bd583da7ecb6d8acc0cbfd5fb48d4e6b00aa25e", kill_on_drop: false }`
[INFO] [stdout] 255b530755299adf1a0b58581bd583da7ecb6d8acc0cbfd5fb48d4e6b00aa25e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "doc" "--frozen" "--no-deps" "--document-private-items" "--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] 1fc5f51056ef470ab3c94ea4a21e5a06857523de672b56eee344c0efc5524ca3
[INFO] running `Command { std: "docker" "start" "-a" "1fc5f51056ef470ab3c94ea4a21e5a06857523de672b56eee344c0efc5524ca3", kill_on_drop: false }`
[INFO] [stderr]     Checking subtle v2.4.1
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]     Checking defmac v0.2.1
[INFO] [stderr]     Checking ethnum v1.0.3
[INFO] [stderr]    Compiling proc-macro-error-attr v0.4.12
[INFO] [stderr]    Compiling proc-macro-error v0.4.12
[INFO] [stderr]    Compiling blake3 v0.3.8
[INFO] [stderr]    Compiling im v15.0.0
[INFO] [stderr]    Compiling psm v0.1.13
[INFO] [stderr]    Compiling stacker v0.1.14
[INFO] [stderr]     Checking fixed-hash v0.7.0
[INFO] [stderr]     Checking ed25519 v1.1.1
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]     Checking bitvec v0.20.4
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking regex v1.4.6
[INFO] [stderr]    Compiling synstructure v0.12.5
[INFO] [stderr]    Compiling thiserror-impl v1.0.26
[INFO] [stderr]    Compiling syn-mid v0.5.3
[INFO] [stderr]    Compiling derive_arbitrary v1.0.1
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]    Compiling serde_repr v0.1.7
[INFO] [stderr]    Compiling derive_more v0.99.16
[INFO] [stderr]     Checking sha2 v0.9.5
[INFO] [stderr]     Checking num-bigint v0.3.2
[INFO] [stderr]     Checking serde v1.0.126
[INFO] [stderr]     Checking crypto-mac v0.8.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]    Compiling structopt-derive v0.4.15
[INFO] [stderr]     Checking rayon-core v1.9.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand_xoshiro v0.4.0
[INFO] [stderr]     Checking env_logger v0.9.0
[INFO] [stderr]     Checking uint v0.9.1
[INFO] [stderr]     Checking rayon v1.5.1
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking primitive-types v0.10.1
[INFO] [stderr]    Compiling zeroize_derive v1.1.0
[INFO] [stderr]     Checking num-rational v0.3.2
[INFO] [stderr] error: could not compile `derive_more`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name derive_more --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/derive_more-0.99.16/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="add"' --cfg 'feature="add_assign"' --cfg 'feature="as_mut"' --cfg 'feature="as_ref"' --cfg 'feature="constructor"' --cfg 'feature="convert_case"' --cfg 'feature="default"' --cfg 'feature="deref"' --cfg 'feature="deref_mut"' --cfg 'feature="display"' --cfg 'feature="error"' --cfg 'feature="from"' --cfg 'feature="from_str"' --cfg 'feature="index"' --cfg 'feature="index_mut"' --cfg 'feature="into"' --cfg 'feature="into_iterator"' --cfg 'feature="is_variant"' --cfg 'feature="iterator"' --cfg 'feature="mul"' --cfg 'feature="mul_assign"' --cfg 'feature="not"' --cfg 'feature="rustc_version"' --cfg 'feature="sum"' --cfg 'feature="try_into"' --cfg 'feature="unwrap"' -C metadata=7062b6062852b37e -C extra-filename=-7062b6062852b37e --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern convert_case=/opt/rustwide/target/debug/deps/libconvert_case-a0146f7b862a5e0a.rlib --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-ca47117b064b7f78.rlib --extern quote=/opt/rustwide/target/debug/deps/libquote-de724f3417462047.rlib --extern syn=/opt/rustwide/target/debug/deps/libsyn-9724099f8b958789.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" "1fc5f51056ef470ab3c94ea4a21e5a06857523de672b56eee344c0efc5524ca3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1fc5f51056ef470ab3c94ea4a21e5a06857523de672b56eee344c0efc5524ca3", kill_on_drop: false }`
[INFO] [stdout] 1fc5f51056ef470ab3c94ea4a21e5a06857523de672b56eee344c0efc5524ca3
