[INFO] cloning repository https://github.com/data-pup/twiggy-compat-dev
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/data-pup/twiggy-compat-dev" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdata-pup%2Ftwiggy-compat-dev", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdata-pup%2Ftwiggy-compat-dev'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 71ea2d94a80e6f23025dca51b9dfa25dfda6c26f
[INFO] building data-pup/twiggy-compat-dev against master#881c1ac408d93bb7adaa3a51dabab9266e82eee8 for issue-85264
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdata-pup%2Ftwiggy-compat-dev" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/data-pup/twiggy-compat-dev on toolchain 881c1ac408d93bb7adaa3a51dabab9266e82eee8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/data-pup/twiggy-compat-dev
[INFO] finished tweaking git repo https://github.com/data-pup/twiggy-compat-dev
[INFO] tweaked toml for git repo https://github.com/data-pup/twiggy-compat-dev written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/data-pup/twiggy-compat-dev already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.11
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.11
[INFO] [stderr]   Downloaded typed-arena v1.4.1
[INFO] [stderr]   Downloaded frozen v1.0.0
[INFO] [stderr]   Downloaded fallible-iterator v0.1.4
[INFO] [stderr]   Downloaded scroll v0.9.0
[INFO] [stderr]   Downloaded petgraph v0.4.12
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.11
[INFO] [stderr]   Downloaded object v0.8.0
[INFO] [stderr]   Downloaded csv-core v0.1.4
[INFO] [stderr]   Downloaded scroll_derive v0.9.4
[INFO] [stderr]   Downloaded serde v1.0.69
[INFO] [stderr]   Downloaded aho-corasick v0.6.5
[INFO] [stderr]   Downloaded parity-wasm v0.28.0
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.11
[INFO] [stderr]   Downloaded goblin v0.0.15
[INFO] [stderr]   Downloaded csv v1.0.0
[INFO] [stderr]   Downloaded gimli v0.16.0
[INFO] [stderr]   Downloaded cpp_demangle v0.2.9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cf3bb54ea16d26a1b6b550207b4047a8d5a6bb9fb67765231bb976eb83671b9a
[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" "cf3bb54ea16d26a1b6b550207b4047a8d5a6bb9fb67765231bb976eb83671b9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cf3bb54ea16d26a1b6b550207b4047a8d5a6bb9fb67765231bb976eb83671b9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf3bb54ea16d26a1b6b550207b4047a8d5a6bb9fb67765231bb976eb83671b9a", kill_on_drop: false }`
[INFO] [stdout] cf3bb54ea16d26a1b6b550207b4047a8d5a6bb9fb67765231bb976eb83671b9a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 05b68b3386f81aa5ccc4bd31968fc61cf85527c45f90ebc5bf2ccb917eec11da
[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" "05b68b3386f81aa5ccc4bd31968fc61cf85527c45f90ebc5bf2ccb917eec11da", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.42
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling cc v1.0.17
[INFO] [stderr]    Compiling serde v1.0.69
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling cfg-if v0.1.4
[INFO] [stderr]    Compiling ucd-util v0.1.1
[INFO] [stderr]    Compiling regex v1.0.1
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]    Compiling lazy_static v1.0.1
[INFO] [stderr]    Compiling glob v0.2.11
[INFO] [stderr]    Compiling utf8-ranges v1.0.0
[INFO] [stderr]    Compiling byteorder v1.2.3
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.11
[INFO] [stderr]    Compiling rustc-demangle v0.1.8
[INFO] [stderr]    Compiling nodrop v0.1.12
[INFO] [stderr]    Compiling itoa v0.4.1
[INFO] [stderr]    Compiling fixedbitset v0.1.9
[INFO] [stderr]    Compiling ordermap v0.3.5
[INFO] [stderr]    Compiling dtoa v0.4.2
[INFO] [stderr]    Compiling frozen v1.0.0
[INFO] [stderr]    Compiling unicode-width v0.1.5
[INFO] [stderr]    Compiling fallible-iterator v0.1.4
[INFO] [stderr]    Compiling stable_deref_trait v1.1.0
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling strsim v0.7.0
[INFO] [stderr]    Compiling bitflags v1.0.3
[INFO] [stderr]    Compiling vec_map v0.8.1
[INFO] [stderr]    Compiling plain v0.2.3
[INFO] [stderr]    Compiling uuid v0.5.1
[INFO] [stderr]    Compiling typed-arena v1.4.1
[INFO] [stderr]    Compiling log v0.4.3
[INFO] [stderr]    Compiling proc-macro2 v0.4.6
[INFO] [stderr]    Compiling arrayvec v0.4.7
[INFO] [stderr]    Compiling unreachable v1.0.0
[INFO] [stderr]    Compiling regex-syntax v0.6.1
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]    Compiling textwrap v0.10.0
[INFO] [stdout] error[E0658]: use of unstable library feature 'proc_macro_span'
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.4.6/src/unstable.rs:284:13
[INFO] [stdout]     |
[INFO] [stdout] 284 |     Nightly(proc_macro::SourceFile, FileName),
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #54725 <https://github.com/rust-lang/rust/issues/54725> for more information
[INFO] [stdout]     = help: add `#![feature(proc_macro_span)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'proc_macro_span'
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.4.6/src/unstable.rs:289:20
[INFO] [stdout]     |
[INFO] [stdout] 289 |     fn nightly(sf: proc_macro::SourceFile) -> Self {
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #54725 <https://github.com/rust-lang/rust/issues/54725> for more information
[INFO] [stdout]     = help: add `#![feature(proc_macro_span)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling thread_local v0.3.5
[INFO] [stdout] error[E0658]: use of unstable library feature 'proc_macro_span'
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.4.6/src/unstable.rs:290:45
[INFO] [stdout]     |
[INFO] [stdout] 290 |         let filename = stable::file_name(sf.path().to_string());
[INFO] [stdout]     |                                             ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #54725 <https://github.com/rust-lang/rust/issues/54725> for more information
[INFO] [stdout]     = help: add `#![feature(proc_macro_span)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: the method `to_string` exists for struct `PathBuf`, but its trait bounds were not satisfied
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.4.6/src/unstable.rs:290:52
[INFO] [stdout]      |
[INFO] [stdout] 290  |           let filename = stable::file_name(sf.path().to_string());
[INFO] [stdout]      |                                                      ^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: the following trait bounds were not satisfied:
[INFO] [stdout]              `PathBuf: std::fmt::Display`
[INFO] [stdout]              which is required by `PathBuf: ToString`
[INFO] [stdout]              `Path: std::fmt::Display`
[INFO] [stdout]              which is required by `Path: ToString`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'proc_macro_span'
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.4.6/src/unstable.rs:304:44
[INFO] [stdout]     |
[INFO] [stdout] 304 |             SourceFile::Nightly(a, _) => a.is_real(),
[INFO] [stdout]     |                                            ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #54725 <https://github.com/rust-lang/rust/issues/54725> for more information
[INFO] [stdout]     = help: add `#![feature(proc_macro_span)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'proc_macro_def_site'
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.4.6/src/unstable.rs:347:27
[INFO] [stdout]     |
[INFO] [stdout] 347 |             Span::Nightly(proc_macro::Span::def_site())
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #54724 <https://github.com/rust-lang/rust/issues/54724> for more information
[INFO] [stdout]     = help: add `#![feature(proc_macro_def_site)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'proc_macro_span'
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.4.6/src/unstable.rs:424:55
[INFO] [stdout]     |
[INFO] [stdout] 424 |             (Span::Nightly(a), Span::Nightly(b)) => a.eq(b),
[INFO] [stdout]     |                                                       ^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #54725 <https://github.com/rust-lang/rust/issues/54725> for more information
[INFO] [stdout]     = help: add `#![feature(proc_macro_span)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 7 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0599, E0658.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `proc-macro2`
[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] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "05b68b3386f81aa5ccc4bd31968fc61cf85527c45f90ebc5bf2ccb917eec11da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05b68b3386f81aa5ccc4bd31968fc61cf85527c45f90ebc5bf2ccb917eec11da", kill_on_drop: false }`
[INFO] [stdout] 05b68b3386f81aa5ccc4bd31968fc61cf85527c45f90ebc5bf2ccb917eec11da
