[INFO] updating cached repository https://github.com/shockham/cuo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] [stderr] From https://github.com/shockham/cuo
[INFO] [stderr]    0597513..b18314e  master     -> master
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b18314e490fc377070832cf3f166a28b5243adc4
[INFO] documenting shockham/cuo against try#66dfc4e010913fbed0c4ea91fc2c010004b0f441 for pr-73566
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshockham%2Fcuo" "/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/shockham/cuo on toolchain 66dfc4e010913fbed0c4ea91fc2c010004b0f441
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/shockham/cuo
[INFO] finished tweaking git repo https://github.com/shockham/cuo
[INFO] tweaked toml for git repo https://github.com/shockham/cuo written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/shockham/cuo already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 023d4369fa7206cbdcc69c351e5d83e346b23755ba4c2379396a349994bf5a0f
[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" "023d4369fa7206cbdcc69c351e5d83e346b23755ba4c2379396a349994bf5a0f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "023d4369fa7206cbdcc69c351e5d83e346b23755ba4c2379396a349994bf5a0f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "023d4369fa7206cbdcc69c351e5d83e346b23755ba4c2379396a349994bf5a0f", kill_on_drop: false }`
[INFO] [stdout] 023d4369fa7206cbdcc69c351e5d83e346b23755ba4c2379396a349994bf5a0f
[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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "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] 146269a3b634b3097bdac14052b55bce4824e923cf65cd56c8c65bf408b5c635
[INFO] running `Command { std: "docker" "start" "-a" "146269a3b634b3097bdac14052b55bce4824e923cf65cd56c8c65bf408b5c635", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]    Compiling serde v1.0.113
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling serde_json v1.0.55
[INFO] [stderr]     Checking openssl-probe v0.1.2
[INFO] [stderr]    Compiling curl v0.4.29
[INFO] [stderr]     Checking regex-syntax v0.6.18
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]     Checking foreign-types-shared v0.1.1
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]     Checking utf8parse v0.1.1
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking termcolor v1.1.0
[INFO] [stderr]     Checking hex v0.3.2
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking shell-escape v0.1.5
[INFO] [stderr]     Checking opener v0.4.1
[INFO] [stderr]     Checking rustc-workspace-hack v1.0.0
[INFO] [stderr]     Checking bytesize v1.0.1
[INFO] [stderr]     Checking hex v0.4.2
[INFO] [stderr]     Checking home v0.5.3
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]     Checking foreign-types v0.3.2
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking vte v0.3.3
[INFO] [stderr]     Checking sized-chunks v0.3.1
[INFO] [stderr]    Compiling syn v1.0.31
[INFO] [stderr]     Checking strip-ansi-escapes v0.1.0
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]     Checking aho-corasick v0.7.10
[INFO] [stderr]     Checking bstr v0.2.13
[INFO] [stderr]     Checking url v2.1.1
[INFO] [stderr]    Compiling jobserver v0.1.21
[INFO] [stderr]     Checking backtrace v0.3.49
[INFO] [stderr]     Checking socket2 v0.3.12
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking filetime v0.2.10
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]     Checking dirs-sys v0.3.5
[INFO] [stderr]     Checking clap v2.33.1
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking tar v0.4.29
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]    Compiling cc v1.0.54
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]    Compiling openssl-sys v0.9.58
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]    Compiling libnghttp2-sys v0.1.4+1.41.0
[INFO] [stderr]    Compiling libssh2-sys v0.2.17
[INFO] [stderr]    Compiling curl-sys v0.4.31+curl-7.70.0
[INFO] [stderr]    Compiling libgit2-sys v0.9.2
[INFO] [stderr]     Checking flate2 v1.0.14
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]    Compiling openssl v0.10.29
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]     Checking globset v0.4.5
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]     Checking ignore v0.4.16
[INFO] [stderr]    Compiling serde_derive v1.0.113
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking crypto-hash v0.3.4
[INFO] [stderr]     Checking git2 v0.10.2
[INFO] [stderr]     Checking git2-curl v0.11.0
[INFO] [stderr]     Checking serde_ignored v0.1.2
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Checking semver v0.9.0
[INFO] [stderr]     Checking crates-io v0.28.0
[INFO] [stderr]     Checking rustfix v0.4.6
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling im-rc v13.0.0
[INFO] [stderr]     Checking cargo v0.40.0
[INFO] [stderr]  Documenting cuo v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 46s
[INFO] running `Command { std: "docker" "inspect" "146269a3b634b3097bdac14052b55bce4824e923cf65cd56c8c65bf408b5c635", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "146269a3b634b3097bdac14052b55bce4824e923cf65cd56c8c65bf408b5c635", kill_on_drop: false }`
[INFO] [stdout] 146269a3b634b3097bdac14052b55bce4824e923cf65cd56c8c65bf408b5c635