[INFO] cloning repository https://github.com/mitsuhiko/machfind
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mitsuhiko/machfind" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmitsuhiko%2Fmachfind", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmitsuhiko%2Fmachfind'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5105e6c324f06c348759f9ac5ad9836be36361cf
[INFO] documenting mitsuhiko/machfind against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmitsuhiko%2Fmachfind" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mitsuhiko/machfind 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 git repo https://github.com/mitsuhiko/machfind
[INFO] finished tweaking git repo https://github.com/mitsuhiko/machfind
[INFO] tweaked toml for git repo https://github.com/mitsuhiko/machfind written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/mitsuhiko/machfind 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 memmap v0.5.2
[INFO] [stderr]   Downloaded lazy_static v0.2.4
[INFO] [stderr]   Downloaded backtrace v0.3.0
[INFO] [stderr]   Downloaded rustc-demangle v0.1.4
[INFO] [stderr]   Downloaded fs2 v0.4.1
[INFO] [stderr]   Downloaded backtrace-sys v0.1.10
[INFO] [stderr]   Downloaded clap v2.21.2
[INFO] [stderr]   Downloaded error-chain v0.9.0
[INFO] [stderr]   Downloaded bitflags v0.8.0
[INFO] [stderr]   Downloaded mach_object v0.1.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] d0b09d2448cc00326e8c1ec94370c1351136d7624becad256f08e6f215f9331e
[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" "d0b09d2448cc00326e8c1ec94370c1351136d7624becad256f08e6f215f9331e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d0b09d2448cc00326e8c1ec94370c1351136d7624becad256f08e6f215f9331e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0b09d2448cc00326e8c1ec94370c1351136d7624becad256f08e6f215f9331e", kill_on_drop: false }`
[INFO] [stdout] d0b09d2448cc00326e8c1ec94370c1351136d7624becad256f08e6f215f9331e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 6617cc8ee7e166613c62da86e29b85bc1cfc91e8588d89186fb0396ffd44853d
[INFO] running `Command { std: "docker" "start" "-a" "6617cc8ee7e166613c62da86e29b85bc1cfc91e8588d89186fb0396ffd44853d", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.21
[INFO] [stderr]    Compiling backtrace v0.3.0
[INFO] [stderr]     Checking bitflags v0.8.0
[INFO] [stderr]     Checking vec_map v0.7.0
[INFO] [stderr]     Checking unicode-segmentation v1.1.0
[INFO] [stderr]     Checking lazy_static v0.2.4
[INFO] [stderr]     Checking uuid v0.4.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.10
[INFO] [stderr]     Checking walkdir v0.1.8
[INFO] [stderr]     Checking time v0.1.36
[INFO] [stderr]     Checking term_size v0.2.3
[INFO] [stderr]     Checking memmap v0.5.2
[INFO] [stderr]     Checking clap v2.21.2
[INFO] [stderr]     Checking mach_object v0.1.3
[INFO] [stderr]     Checking error-chain v0.9.0
[INFO] [stderr]     Checking machfind v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting machfind v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:8:1
[INFO] [stdout]    |
[INFO] [stdout] 8  | / error_chain! {
[INFO] [stdout] 9  | |     foreign_links {
[INFO] [stdout] 10 | |         Io(io::Error);
[INFO] [stdout] 11 | |         WalkDir(walkdir::Error);
[INFO] [stdout] 12 | |         MachO(mach_object::Error);
[INFO] [stdout] 13 | |     }
[INFO] [stdout] 14 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:8:1
[INFO] [stdout]    |
[INFO] [stdout] 8  | / error_chain! {
[INFO] [stdout] 9  | |     foreign_links {
[INFO] [stdout] 10 | |         Io(io::Error);
[INFO] [stdout] 11 | |         WalkDir(walkdir::Error);
[INFO] [stdout] 12 | |         MachO(mach_object::Error);
[INFO] [stdout] 13 | |     }
[INFO] [stdout] 14 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::cause`: replaced by Error::source, which can support downcasting
[INFO] [stdout]   --> src/cli.rs:66:33
[INFO] [stdout]    |
[INFO] [stdout] 66 |             let mut cause = err.cause();
[INFO] [stdout]    |                                 ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::cause`: replaced by Error::source, which can support downcasting
[INFO] [stdout]   --> src/cli.rs:69:35
[INFO] [stdout]    |
[INFO] [stdout] 69 |                 cause = the_cause.cause();
[INFO] [stdout]    |                                   ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::cause`: replaced by Error::source, which can support downcasting
[INFO] [stdout]   --> src/error.rs:8:1
[INFO] [stdout]    |
[INFO] [stdout] 8  | / error_chain! {
[INFO] [stdout] 9  | |     foreign_links {
[INFO] [stdout] 10 | |         Io(io::Error);
[INFO] [stdout] 11 | |         WalkDir(walkdir::Error);
[INFO] [stdout] 12 | |         MachO(mach_object::Error);
[INFO] [stdout] 13 | |     }
[INFO] [stdout] 14 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 26.02s
[INFO] running `Command { std: "docker" "inspect" "6617cc8ee7e166613c62da86e29b85bc1cfc91e8588d89186fb0396ffd44853d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6617cc8ee7e166613c62da86e29b85bc1cfc91e8588d89186fb0396ffd44853d", kill_on_drop: false }`
[INFO] [stdout] 6617cc8ee7e166613c62da86e29b85bc1cfc91e8588d89186fb0396ffd44853d