[INFO] updating cached repository https://github.com/retro486/task-progress
[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] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ab1fe3ae72dd8f58b2e4589eb19478227558608e
[INFO] documenting retro486/task-progress against try#66dfc4e010913fbed0c4ea91fc2c010004b0f441 for pr-73566
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fretro486%2Ftask-progress" "/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/retro486/task-progress 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/retro486/task-progress
[INFO] finished tweaking git repo https://github.com/retro486/task-progress
[INFO] tweaked toml for git repo https://github.com/retro486/task-progress written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/retro486/task-progress 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-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" "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] 6d9e929c012e589051f9f5a19a068b8cad6a326c31b1983f02b29783d3f5aad0
[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" "6d9e929c012e589051f9f5a19a068b8cad6a326c31b1983f02b29783d3f5aad0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6d9e929c012e589051f9f5a19a068b8cad6a326c31b1983f02b29783d3f5aad0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d9e929c012e589051f9f5a19a068b8cad6a326c31b1983f02b29783d3f5aad0", kill_on_drop: false }`
[INFO] [stdout] 6d9e929c012e589051f9f5a19a068b8cad6a326c31b1983f02b29783d3f5aad0
[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" "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] [stdout] 02203b23094d168621a36f1869ce5fcd4cee09c33d8a320da2bdcc97ad5fe813
[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" "02203b23094d168621a36f1869ce5fcd4cee09c33d8a320da2bdcc97ad5fe813", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.8
[INFO] [stderr]    Compiling memchr v2.3.0
[INFO] [stderr]    Compiling syn v1.0.14
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling regex-syntax v0.6.13
[INFO] [stderr]    Compiling if_rust_version v1.0.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling procedural-masquerade v0.1.6
[INFO] [stderr]    Compiling cpp_synom v0.12.0
[INFO] [stderr]    Compiling cpp_syn v0.12.0
[INFO] [stderr]    Compiling aho-corasick v0.7.6
[INFO] [stderr]    Compiling aho-corasick v0.6.10
[INFO] [stderr]    Compiling memchr v1.0.2
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling cpp_common v0.4.0
[INFO] [stderr]    Compiling cpp_synmap v0.3.0
[INFO] [stderr]    Compiling cpp_build v0.4.0
[INFO] [stderr]    Compiling regex v1.3.3
[INFO] [stderr]    Compiling cpp_macros v0.4.0
[INFO] [stderr]    Compiling retro486-task-progress v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking cpp v0.4.0
[INFO] [stderr]    Compiling qmetaobject_impl v0.0.5
[INFO] [stderr]    Compiling cpp_common v0.5.4
[INFO] [stderr]    Compiling cpp_build v0.5.4
[INFO] [stderr]    Compiling cpp_macros v0.5.4
[INFO] [stderr]    Compiling qmetaobject v0.0.5
[INFO] [stderr]    Compiling cstr-macros v0.1.6
[INFO] [stderr]     Checking cstr v0.1.7
[INFO] [stderr]     Checking cpp v0.5.4
[INFO] [stderr]  Documenting retro486-task-progress v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 26s
[INFO] running `Command { std: "docker" "inspect" "02203b23094d168621a36f1869ce5fcd4cee09c33d8a320da2bdcc97ad5fe813", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "02203b23094d168621a36f1869ce5fcd4cee09c33d8a320da2bdcc97ad5fe813", kill_on_drop: false }`
[INFO] [stdout] 02203b23094d168621a36f1869ce5fcd4cee09c33d8a320da2bdcc97ad5fe813