[INFO] cloning repository https://github.com/viperproject/prusti-dev
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/viperproject/prusti-dev" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fviperproject%2Fprusti-dev", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fviperproject%2Fprusti-dev'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4d357da8e70c88d1d66c3c4a7da2eb5b4f935fae
[INFO] documenting viperproject/prusti-dev against 1.54.0 for beta-1.55-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fviperproject%2Fprusti-dev" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/viperproject/prusti-dev on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-0/source/.cargo/config
[INFO] removed /workspace/builds/worker-0/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/viperproject/prusti-dev
[INFO] finished tweaking git repo https://github.com/viperproject/prusti-dev
[INFO] tweaked toml for git repo https://github.com/viperproject/prusti-dev written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/viperproject/prusti-dev already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bc6f6ff22e3b7ce2d4b6163eb4df90a45db17687b377a6536e3bae74ef60f61e
[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" "bc6f6ff22e3b7ce2d4b6163eb4df90a45db17687b377a6536e3bae74ef60f61e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bc6f6ff22e3b7ce2d4b6163eb4df90a45db17687b377a6536e3bae74ef60f61e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc6f6ff22e3b7ce2d4b6163eb4df90a45db17687b377a6536e3bae74ef60f61e", kill_on_drop: false }`
[INFO] [stdout] bc6f6ff22e3b7ce2d4b6163eb4df90a45db17687b377a6536e3bae74ef60f61e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 23b4c983e60305358cd695769c08c74fc0cec94e14e3a910b7f8e0d7ddada553
[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" "23b4c983e60305358cd695769c08c74fc0cec94e14e3a910b7f8e0d7ddada553", kill_on_drop: false }`
[INFO] [stderr] warning: output filename collision.
[INFO] [stderr] The lib target `prusti-server` in package `prusti-server v0.1.0 (/opt/rustwide/workdir/prusti-server)` has the same output filename as the bin target `prusti-server` in package `prusti-launch v0.1.0 (/opt/rustwide/workdir/prusti-launch)`.
[INFO] [stderr] Colliding filename is: /opt/rustwide/target/doc/prusti_server/index.html
[INFO] [stderr] The targets should have unique names.
[INFO] [stderr] This is a known bug where multiple crates with the same name use
[INFO] [stderr] the same path; see <https://github.com/rust-lang/cargo/issues/6313>.
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling gimli v0.25.0
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling rustc-demangle v0.1.20
[INFO] [stderr]    Compiling jni-sys v0.3.0
[INFO] [stderr]    Compiling cesu8 v1.1.0
[INFO] [stderr]    Compiling chunked_transfer v1.4.0
[INFO] [stderr]     Checking datafrog v2.0.1
[INFO] [stderr]    Compiling rustwide v0.13.1
[INFO] [stderr]    Compiling tokio v1.9.0
[INFO] [stderr]    Compiling futures-util v0.3.16
[INFO] [stderr]    Compiling walkdir v2.3.2
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]    Compiling unicode-normalization v0.1.19
[INFO] [stderr]     Checking xattr v0.2.2
[INFO] [stderr]     Checking filetime v0.2.14
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]     Checking remove_dir_all v0.7.0
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling time v0.1.43
[INFO] [stderr]    Compiling object v0.26.0
[INFO] [stderr]    Compiling combine v4.6.0
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking ctrlc v3.1.9
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking crossbeam-epoch v0.8.2
[INFO] [stderr]     Checking input_buffer v0.2.0
[INFO] [stderr]    Compiling backtrace v0.3.61
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]    Compiling libz-sys v1.1.3
[INFO] [stderr]    Compiling libssh2-sys v0.2.21
[INFO] [stderr]    Compiling libgit2-sys v0.12.21+1.1.0
[INFO] [stderr]     Checking tar v0.4.35
[INFO] [stderr]     Checking serde-hjson v0.9.1
[INFO] [stderr]     Checking publicsuffix v1.5.6
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking headers-core v0.1.1
[INFO] [stderr]     Checking http-body v0.1.0
[INFO] [stderr]    Compiling jni v0.19.0
[INFO] [stderr]    Compiling tempdir v0.3.7
[INFO] [stderr]     Checking crossbeam-deque v0.7.4
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]     Checking tokio-io v0.1.13
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking env_logger v0.9.0
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking want v0.2.0
[INFO] [stderr]     Checking polonius-engine v0.12.1
[INFO] [stderr]     Checking mio v0.7.13
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]    Compiling idna v0.2.3
[INFO] [stderr]     Checking parking_lot v0.9.0
[INFO] [stderr]     Checking tungstenite v0.9.2
[INFO] [stderr]     Checking openssl-sys v0.9.65
[INFO] [stderr]    Compiling openssl v0.10.35
[INFO] [stderr]    Compiling native-tls v0.2.7
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]     Checking headers v0.2.3
[INFO] [stderr]     Checking tokio-threadpool v0.1.18
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling addr2line v0.16.0
[INFO] [stderr]     Checking mime v0.2.6
[INFO] [stderr]     Checking tokio-codec v0.1.2
[INFO] [stderr]     Checking h2 v0.1.26
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]     Checking tokio-reactor v0.1.12
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]     Checking cookie v0.12.0
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling url v2.2.2
[INFO] [stderr]     Checking flate2 v1.0.20
[INFO] [stderr]     Checking tokio-fs v0.1.7
[INFO] [stderr]     Checking color-backtrace v0.5.1
[INFO] [stderr]    Compiling mime_guess v1.8.8
[INFO] [stderr]     Checking tokio-tcp v0.1.4
[INFO] [stderr]     Checking tokio-uds v0.2.7
[INFO] [stderr]     Checking tokio-udp v0.1.6
[INFO] [stderr]    Compiling prusti v0.2.0 (/opt/rustwide/workdir/prusti)
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]     Checking hyper v0.12.36
[INFO] [stderr]    Compiling webpki v0.21.4
[INFO] [stderr]    Compiling sct v0.6.1
[INFO] [stderr]     Checking multipart v0.16.1
[INFO] [stderr]    Compiling webpki-roots v0.21.1
[INFO] [stderr]    Compiling rustls v0.19.1
[INFO] [stderr]     Checking attohttpc v0.16.3
[INFO] [stderr]     Checking tokio-stream v0.1.7
[INFO] [stderr]     Checking hyper-tls v0.3.2
[INFO] [stderr]  Documenting vir-gen v0.1.0 (/opt/rustwide/workdir/vir-gen)
[INFO] [stderr]     Checking git2 v0.13.20
[INFO] [stderr]    Compiling vir-gen v0.1.0 (/opt/rustwide/workdir/vir-gen)
[INFO] [stderr]    Compiling synstructure v0.12.5
[INFO] [stderr]    Compiling ureq v2.1.1
[INFO] [stderr]    Compiling serde_derive v1.0.127
[INFO] [stderr]    Compiling thiserror-impl v1.0.26
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling futures-macro v0.3.16
[INFO] [stderr]    Compiling vir v0.1.0 (/opt/rustwide/workdir/vir)
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]    Compiling thiserror v1.0.26
[INFO] [stderr]     Checking serde v1.0.127
[INFO] [stderr]    Compiling jni-gen v0.1.0 (/opt/rustwide/workdir/jni-gen)
[INFO] [stderr]  Documenting jni-gen v0.1.0 (/opt/rustwide/workdir/jni-gen)
[INFO] [stderr]    Compiling viper-sys v0.1.0 (/opt/rustwide/workdir/viper-sys)
[INFO] [stderr]    Compiling systest v0.1.0 (/opt/rustwide/workdir/jni-gen/systest)
[INFO] [stderr]     Checking serde_json v1.0.66
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]     Checking index_vec v0.1.2
[INFO] [stderr]     Checking serde_urlencoded v0.6.1
[INFO] [stderr]     Checking serde_urlencoded v0.5.5
[INFO] [stderr]     Checking bstr v0.2.16
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]  Documenting vir v0.1.0 (/opt/rustwide/workdir/vir)
[INFO] [stderr]     Checking csv v1.1.6
[INFO] [stderr]     Checking cookie_store v0.7.0
[INFO] [stderr]     Checking prusti-specs v0.1.0 (/opt/rustwide/workdir/prusti-specs)
[INFO] [stderr]     Checking warp v0.1.23
[INFO] [stderr]     Checking analysis v0.1.0 (/opt/rustwide/workdir/analysis)
[INFO] [stderr]  Documenting prusti-specs v0.1.0 (/opt/rustwide/workdir/prusti-specs)
[INFO] [stderr]  Documenting analysis v0.1.0 (/opt/rustwide/workdir/analysis)
[INFO] [stderr]     Checking config v0.11.0
[INFO] [stderr]     Checking prusti-launch v0.1.0 (/opt/rustwide/workdir/prusti-launch)
[INFO] [stdout] error[E0463]: can't find crate for `rustc_middle`
[INFO] [stdout]   --> analysis/src/lib.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | extern crate rustc_middle;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `analysis`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0463]: can't find crate for `rustc_middle`
[INFO] [stdout]   --> analysis/src/lib.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | extern crate rustc_middle;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stdout] error: couldn't read prusti-launch/src/../../rust-toolchain: No such file or directory (os error 2)
[INFO] [stdout]    --> prusti-launch/src/lib.rs:110:19
[INFO] [stdout]     |
[INFO] [stdout] 110 |     let content = include_str!("../../rust-toolchain");
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `include_str` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> vir/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(box_patterns)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> vir/src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(box_syntax)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> vir/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(box_patterns)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> vir/src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(box_syntax)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `extern_spec`
[INFO] [stdout]   --> prusti-specs/src/extern_spec_rewriter.rs:10:7
[INFO] [stdout]    |
[INFO] [stdout] 10 | /// #[extern_spec] attribute. Nested modules are processed recursively.
[INFO] [stdout]    |       ^^^^^^^^^^^ no item named `extern_spec` in scope
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(rustdoc::broken_intra_doc_links)]` on by default
[INFO] [stdout]    = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this URL is not a hyperlink
[INFO] [stdout]    --> prusti-specs/src/specifications/common.rs:365:9
[INFO] [stdout]     |
[INFO] [stdout] 365 | ...// https://ethz.ch/content/dam/ethz/special-interest/infk/chair-program-method/pm/documents/Education/Theses/Matthias_Erdin_MA_report.pdf
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use an automatic link instead: `<https://ethz.ch/content/dam/ethz/special-interest/infk/chair-program-method/pm/documents/Education/Theses/Matthias_Erdin_MA_report.pdf>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(rustdoc::bare_urls)]` on by default
[INFO] [stdout]     = note: bare URLs are not automatically turned into clickable links
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "23b4c983e60305358cd695769c08c74fc0cec94e14e3a910b7f8e0d7ddada553", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23b4c983e60305358cd695769c08c74fc0cec94e14e3a910b7f8e0d7ddada553", kill_on_drop: false }`
[INFO] [stdout] 23b4c983e60305358cd695769c08c74fc0cec94e14e3a910b7f8e0d7ddada553
