[INFO] cloning repository https://github.com/jimmykamau/hello-morse
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jimmykamau/hello-morse" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjimmykamau%2Fhello-morse", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjimmykamau%2Fhello-morse'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4cbd99fcdca004e3016d2432761d2a74a2cb9ace
[INFO] documenting jimmykamau/hello-morse against try#66dfc4e010913fbed0c4ea91fc2c010004b0f441 for pr-73566
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjimmykamau%2Fhello-morse" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jimmykamau/hello-morse on toolchain 66dfc4e010913fbed0c4ea91fc2c010004b0f441
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-1/source/.cargo/config
[INFO] started tweaking git repo https://github.com/jimmykamau/hello-morse
[INFO] finished tweaking git repo https://github.com/jimmykamau/hello-morse
[INFO] tweaked toml for git repo https://github.com/jimmykamau/hello-morse written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/jimmykamau/hello-morse 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 74eb51c96cf651dee16acbe45f58f443b8a0ec327020b8ea0620093cb5d19748
[INFO] running `Command { std: "docker" "start" "-a" "74eb51c96cf651dee16acbe45f58f443b8a0ec327020b8ea0620093cb5d19748", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "74eb51c96cf651dee16acbe45f58f443b8a0ec327020b8ea0620093cb5d19748", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74eb51c96cf651dee16acbe45f58f443b8a0ec327020b8ea0620093cb5d19748", kill_on_drop: false }`
[INFO] [stdout] 74eb51c96cf651dee16acbe45f58f443b8a0ec327020b8ea0620093cb5d19748
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 54bac607bedadd627a9c0db0b9472c93231dfbafcc3b96d6dd238ede6f5f1d9f
[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" "54bac607bedadd627a9c0db0b9472c93231dfbafcc3b96d6dd238ede6f5f1d9f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling cortex-m v0.6.1
[INFO] [stderr]     Checking stable_deref_trait v1.1.1
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]     Checking vcell v0.1.0
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling cortex-m-rt v0.6.10
[INFO] [stderr]    Compiling cortex-m-semihosting v0.3.5
[INFO] [stderr]    Compiling stm32f1 v0.8.0
[INFO] [stderr]     Checking r0 v0.2.2
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling heapless v0.5.1
[INFO] [stderr]     Checking nb v0.1.2
[INFO] [stderr]     Checking cast v0.2.2
[INFO] [stderr]    Compiling bare-metal v0.2.4
[INFO] [stderr]     Checking generic-array v0.13.2
[INFO] [stderr]     Checking as-slice v0.1.0
[INFO] [stderr]     Checking volatile-register v0.2.0
[INFO] [stderr]     Checking embedded-hal v0.2.3
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand v0.5.6
[INFO] [stderr]     Checking hash32 v0.1.0
[INFO] [stderr]     Checking aligned v0.3.1
[INFO] [stderr]     Checking panic-semihosting v0.5.3
[INFO] [stderr]    Compiling cortex-m-rt-macros v0.1.5
[INFO] [stderr]     Checking stm32f1xx-hal v0.4.0
[INFO] [stderr]  Documenting hello-morse v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 55.43s
[INFO] running `Command { std: "docker" "inspect" "54bac607bedadd627a9c0db0b9472c93231dfbafcc3b96d6dd238ede6f5f1d9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "54bac607bedadd627a9c0db0b9472c93231dfbafcc3b96d6dd238ede6f5f1d9f", kill_on_drop: false }`
[INFO] [stdout] 54bac607bedadd627a9c0db0b9472c93231dfbafcc3b96d6dd238ede6f5f1d9f