[INFO] fetching crate demes-forward 0.1.0...
[INFO] crate demes-forward 0.1.0 is already in cache
[INFO] crate demes-forward 0.1.0 is already in cache
[INFO] crate demes-forward 0.1.0 is already in cache
[INFO] crate demes-forward 0.1.0 is already in cache
[INFO] crate demes-forward 0.1.0 is already in cache
[INFO] crate demes-forward 0.1.0 is already in cache
[INFO] crate demes-forward 0.1.0 is already in cache
[INFO] crate demes-forward 0.1.0 is already in cache
[INFO] crate demes-forward 0.1.0 is already in cache
[INFO] crate demes-forward 0.1.0 is already in cache
[INFO] crate demes-forward 0.1.0 is already in cache
[INFO] crate demes-forward 0.1.0 is already in cache
[INFO] crate demes-forward 0.1.0 is already in cache
[INFO] crate demes-forward 0.1.0 is already in cache
[INFO] checking demes-forward-0.1.0 against master#7308c22c6a8d77e82187e290e1f7459870e48d12 for pr-99447
[INFO] extracting crate demes-forward 0.1.0 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate demes-forward 0.1.0 on toolchain 7308c22c6a8d77e82187e290e1f7459870e48d12
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7308c22c6a8d77e82187e290e1f7459870e48d12" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate demes-forward 0.1.0
[INFO] finished tweaking crates.io crate demes-forward 0.1.0
[INFO] tweaked toml for crates.io crate demes-forward 0.1.0 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7308c22c6a8d77e82187e290e1f7459870e48d12" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7308c22c6a8d77e82187e290e1f7459870e48d12" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded demes v0.2.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:ecb52c4cf6672b83cc996368a05b4a059042425f2b6ba9cd23a06cdead5d8d70" "/opt/rustwide/cargo-home/bin/cargo" "+7308c22c6a8d77e82187e290e1f7459870e48d12" "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] 47bfa6ccceb83ff89584f9a1da58924ce91bb903a79e3438d0dded8f8d7f5c03
[INFO] running `Command { std: "docker" "start" "-a" "47bfa6ccceb83ff89584f9a1da58924ce91bb903a79e3438d0dded8f8d7f5c03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "47bfa6ccceb83ff89584f9a1da58924ce91bb903a79e3438d0dded8f8d7f5c03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47bfa6ccceb83ff89584f9a1da58924ce91bb903a79e3438d0dded8f8d7f5c03", kill_on_drop: false }`
[INFO] [stdout] 47bfa6ccceb83ff89584f9a1da58924ce91bb903a79e3438d0dded8f8d7f5c03
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "RUSTFLAGS=--cap-lints=forbid" "-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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:ecb52c4cf6672b83cc996368a05b4a059042425f2b6ba9cd23a06cdead5d8d70" "/opt/rustwide/cargo-home/bin/cargo" "+7308c22c6a8d77e82187e290e1f7459870e48d12" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7fa2904eb5266559af9a03887edc8953c0f10ebdfc33ed1b15e9a929bc55b4ce
[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" "7fa2904eb5266559af9a03887edc8953c0f10ebdfc33ed1b15e9a929bc55b4ce", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.43
[INFO] [stderr]    Compiling unicode-ident v1.0.3
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling syn v1.0.99
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling serde_derive v1.0.143
[INFO] [stderr]    Compiling serde v1.0.143
[INFO] [stderr]     Checking hashbrown v0.12.3
[INFO] [stderr]     Checking linked-hash-map v0.5.6
[INFO] [stderr]     Checking regex-syntax v0.6.27
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]     Checking either v1.7.0
[INFO] [stderr]     Checking ryu v1.0.11
[INFO] [stderr]     Checking matrixmultiply v0.3.2
[INFO] [stderr]     Checking itertools v0.10.3
[INFO] [stderr]     Checking yaml-rust v0.4.5
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling indexmap v1.9.1
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking num-complex v0.4.2
[INFO] [stderr]     Checking ndarray v0.15.6
[INFO] [stderr]     Checking regex v1.6.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.32
[INFO] [stderr]     Checking thiserror v1.0.32
[INFO] [stderr]     Checking serde_yaml v0.8.26
[INFO] [stderr]     Checking demes v0.2.2
[INFO] [stderr]     Checking demes-forward v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 46.45s
[INFO] running `Command { std: "docker" "inspect" "7fa2904eb5266559af9a03887edc8953c0f10ebdfc33ed1b15e9a929bc55b4ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7fa2904eb5266559af9a03887edc8953c0f10ebdfc33ed1b15e9a929bc55b4ce", kill_on_drop: false }`
[INFO] [stdout] 7fa2904eb5266559af9a03887edc8953c0f10ebdfc33ed1b15e9a929bc55b4ce