[INFO] crate checkpoint 0.1.5 is already in cache
[INFO] documenting checkpoint-0.1.5 against try#66dfc4e010913fbed0c4ea91fc2c010004b0f441 for pr-73566
[INFO] extracting crate checkpoint 0.1.5 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate checkpoint 0.1.5 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 crates.io crate checkpoint 0.1.5
[INFO] finished tweaking crates.io crate checkpoint 0.1.5
[INFO] tweaked toml for crates.io crate checkpoint 0.1.5 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] 90db80ac2a80c5b14c48a47a6c002bd81c27ef942f0cd102102f6041ad477460
[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" "90db80ac2a80c5b14c48a47a6c002bd81c27ef942f0cd102102f6041ad477460", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "90db80ac2a80c5b14c48a47a6c002bd81c27ef942f0cd102102f6041ad477460", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "90db80ac2a80c5b14c48a47a6c002bd81c27ef942f0cd102102f6041ad477460", kill_on_drop: false }`
[INFO] [stdout] 90db80ac2a80c5b14c48a47a6c002bd81c27ef942f0cd102102f6041ad477460
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] fd3f19fd7bf4a9c754ce4471ae3481bf0a9bf469bb5c7a20f078590ce59e80e6
[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" "fd3f19fd7bf4a9c754ce4471ae3481bf0a9bf469bb5c7a20f078590ce59e80e6", kill_on_drop: false }`
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling syn v1.0.33
[INFO] [stderr]     Checking gimli v0.21.0
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking ppv-lite86 v0.2.8
[INFO] [stderr]     Checking adler32 v1.1.0
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling serde v1.0.114
[INFO] [stderr]     Checking object v0.20.0
[INFO] [stderr]     Checking byte-tools v0.2.0
[INFO] [stderr]     Checking arrayref v0.3.6
[INFO] [stderr]     Checking constant_time_eq v0.1.5
[INFO] [stderr]     Checking rustc-demangle v0.1.16
[INFO] [stderr]     Checking fake-simd v0.1.2
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking generic-array v0.9.0
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking block-buffer v0.3.3
[INFO] [stderr]     Checking miniz_oxide v0.3.7
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking digest v0.7.6
[INFO] [stderr]     Checking crypto-mac v0.6.2
[INFO] [stderr]     Checking hmac v0.6.3
[INFO] [stderr]     Checking sha2 v0.7.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking addr2line v0.12.2
[INFO] [stderr]     Checking backtrace v0.3.49
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]     Checking bincode v1.3.1
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]  Documenting checkpoint v0.1.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 46.80s
[INFO] running `Command { std: "docker" "inspect" "fd3f19fd7bf4a9c754ce4471ae3481bf0a9bf469bb5c7a20f078590ce59e80e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd3f19fd7bf4a9c754ce4471ae3481bf0a9bf469bb5c7a20f078590ce59e80e6", kill_on_drop: false }`
[INFO] [stdout] fd3f19fd7bf4a9c754ce4471ae3481bf0a9bf469bb5c7a20f078590ce59e80e6