[INFO] fetching crate tree-magic-cli 0.1.0...
[INFO] documenting tree-magic-cli-0.1.0 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate tree-magic-cli 0.1.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate tree-magic-cli 0.1.0 on toolchain beta-2020-08-29
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tree-magic-cli 0.1.0
[INFO] finished tweaking crates.io crate tree-magic-cli 0.1.0
[INFO] tweaked toml for crates.io crate tree-magic-cli 0.1.0 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate crates.io crate tree-magic-cli 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tree_magic_mini v1.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 99f3ec08c0150eba9caa8ad78d41252c68d1adf0a8c2adb1aeb501770d6a3720
[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" "99f3ec08c0150eba9caa8ad78d41252c68d1adf0a8c2adb1aeb501770d6a3720", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "99f3ec08c0150eba9caa8ad78d41252c68d1adf0a8c2adb1aeb501770d6a3720", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "99f3ec08c0150eba9caa8ad78d41252c68d1adf0a8c2adb1aeb501770d6a3720", kill_on_drop: false }`
[INFO] [stdout] 99f3ec08c0150eba9caa8ad78d41252c68d1adf0a8c2adb1aeb501770d6a3720
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 407d3290f0a7a7b572233e8d821a818e7e19d92ad0c3a8c1f447c889a652308b
[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" "407d3290f0a7a7b572233e8d821a818e7e19d92ad0c3a8c1f447c889a652308b", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.31
[INFO] [stderr]    Compiling serde v1.0.112
[INFO] [stderr]    Compiling tinyvec v0.3.3
[INFO] [stderr]     Checking tabwriter v1.2.1
[INFO] [stderr]     Checking tree_magic_mini v1.0.0
[INFO] [stderr]    Compiling unicode-normalization v0.1.13
[INFO] [stderr]    Compiling idna v0.2.0
[INFO] [stderr]    Compiling url v2.1.1
[INFO] [stderr]    Compiling serde_derive v1.0.112
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling toml v0.5.6
[INFO] [stderr]    Compiling cargo-lock v4.0.1
[INFO] [stderr]    Compiling built v0.4.2
[INFO] [stderr]    Compiling tree-magic-cli v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting tree-magic-cli v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 39.15s
[INFO] running `Command { std: "docker" "inspect" "407d3290f0a7a7b572233e8d821a818e7e19d92ad0c3a8c1f447c889a652308b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "407d3290f0a7a7b572233e8d821a818e7e19d92ad0c3a8c1f447c889a652308b", kill_on_drop: false }`
[INFO] [stdout] 407d3290f0a7a7b572233e8d821a818e7e19d92ad0c3a8c1f447c889a652308b