[INFO] updating cached repository https://github.com/akrger/postcard-website
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 39836d8018f8ea7b7290e0e794cba7956996560a
[INFO] checking akrger/postcard-website against master#209b2be09fcaff937480d1fbbe8b31646e361c7a for pr-70917
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fakrger%2Fpostcard-website" "/workspace/builds/worker-1/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/akrger/postcard-website on toolchain 209b2be09fcaff937480d1fbbe8b31646e361c7a
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/akrger/postcard-website
[INFO] finished tweaking git repo https://github.com/akrger/postcard-website
[INFO] tweaked toml for git repo https://github.com/akrger/postcard-website written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/akrger/postcard-website already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 160d78d97fe7095c2bcfe18f17699b23f224dc641f5144580cadad56f532ae97
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "160d78d97fe7095c2bcfe18f17699b23f224dc641f5144580cadad56f532ae97"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling cc v1.0.13
[INFO] [stderr]    Compiling lazy_static v1.0.0
[INFO] [stderr]    Compiling byteorder v1.2.2
[INFO] [stderr]    Compiling pq-sys v0.4.4
[INFO] [stderr]    Compiling untrusted v0.6.1
[INFO] [stderr]    Compiling regex v0.2.10
[INFO] [stderr]    Compiling proc-macro-hack-impl v0.4.0
[INFO] [stderr]    Compiling serde v1.0.43
[INFO] [stderr]    Compiling httparse v1.2.4
[INFO] [stderr]    Compiling pear v0.0.16 (http://github.com/SergioBenitez/pear#44bbca0d)
[INFO] [stderr]     Checking ipnetwork v0.12.8
[INFO] [stderr]     Checking bitflags v1.0.2
[INFO] [stderr]    Compiling indexmap v1.0.1
[INFO] [stderr]    Compiling smallvec v0.6.1
[INFO] [stderr]     Checking data-encoding v2.1.1
[INFO] [stderr]    Compiling crossbeam-utils v0.2.2
[INFO] [stderr]    Compiling num_cpus v1.8.0
[INFO] [stderr]    Compiling proc-macro2 v0.3.7
[INFO] [stderr]    Compiling memchr v0.1.11
[INFO] [stderr] error[E0433]: failed to resolve: could not find `Op` in `proc_macro`
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.3.7/src/unstable.rs:72:42
[INFO] [stderr]    |
[INFO] [stderr] 72 |                 let mut op = proc_macro::Op::new(tt.op(), spacing);
[INFO] [stderr]    |                                          ^^ could not find `Op` in `proc_macro`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: could not find `Term` in `proc_macro`
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.3.7/src/unstable.rs:270:31
[INFO] [stderr]     |
[INFO] [stderr] 270 |             term: proc_macro::Term::new(string, span.0),
[INFO] [stderr]     |                               ^^^^ could not find `Term` in `proc_macro`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `Term` in crate `proc_macro`
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.3.7/src/unstable.rs:264:23
[INFO] [stderr]     |
[INFO] [stderr] 264 |     term: proc_macro::Term,
[INFO] [stderr]     |                       ^^^^ not found in `proc_macro`
[INFO] [stderr]     |
[INFO] [stderr] help: possible candidates are found in other modules, you can import them into scope
[INFO] [stderr]     |
[INFO] [stderr] 3   | use Term;
[INFO] [stderr]     |
[INFO] [stderr] 3   | use imp::Term;
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'proc_macro_span'
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.3.7/src/unstable.rs:168:23
[INFO] [stderr]     |
[INFO] [stderr] 168 | pub struct SourceFile(proc_macro::SourceFile, FileName);
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #54725 <https://github.com/rust-lang/rust/issues/54725> for more information
[INFO] [stderr]     = help: add `#![feature(proc_macro_span)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'proc_macro_span'
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.3.7/src/unstable.rs:171:16
[INFO] [stderr]     |
[INFO] [stderr] 171 |     fn new(sf: proc_macro::SourceFile) -> Self {
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #54725 <https://github.com/rust-lang/rust/issues/54725> for more information
[INFO] [stderr]     = help: add `#![feature(proc_macro_span)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'proc_macro_span'
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.3.7/src/unstable.rs:238:13
[INFO] [stderr]     |
[INFO] [stderr] 238 |         let proc_macro::LineColumn { line, column } = self.0.start();
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #54725 <https://github.com/rust-lang/rust/issues/54725> for more information
[INFO] [stderr]     = help: add `#![feature(proc_macro_span)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'proc_macro_span'
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.3.7/src/unstable.rs:243:13
[INFO] [stderr]     |
[INFO] [stderr] 243 |         let proc_macro::LineColumn { line, column } = self.0.end();
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #54725 <https://github.com/rust-lang/rust/issues/54725> for more information
[INFO] [stderr]     = help: add `#![feature(proc_macro_span)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr]    Compiling time v0.1.39
[INFO] [stderr]    Compiling memchr v2.0.1
[INFO] [stderr]    Compiling isatty v0.1.7
[INFO] [stderr] error[E0599]: no function or associated item named `empty` found for struct `proc_macro::TokenStream` in the current scope
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.3.7/src/unstable.rs:18:46
[INFO] [stderr]    |
[INFO] [stderr] 18 |         TokenStream(proc_macro::TokenStream::empty())
[INFO] [stderr]    |                                              ^^^^^ function or associated item not found in `proc_macro::TokenStream`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no variant or associated item named `Op` found for enum `proc_macro::TokenTree` in the current scope
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.3.7/src/unstable.rs:131:36
[INFO] [stderr]     |
[INFO] [stderr] 131 |             proc_macro::TokenTree::Op(tt) => {
[INFO] [stderr]     |                                    ^^ variant or associated item not found in `proc_macro::TokenTree`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no variant or associated item named `Term` found for enum `proc_macro::TokenTree` in the current scope
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.3.7/src/unstable.rs:140:36
[INFO] [stderr]     |
[INFO] [stderr] 140 |             proc_macro::TokenTree::Term(s) => ::Term::_new(Term { term: s }).into(),
[INFO] [stderr]     |                                    ^^^^ variant or associated item not found in `proc_macro::TokenTree`
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'proc_macro_span'
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.3.7/src/unstable.rs:172:36
[INFO] [stderr]     |
[INFO] [stderr] 172 |         let filename = FileName(sf.path().to_string());
[INFO] [stderr]     |                                    ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #54725 <https://github.com/rust-lang/rust/issues/54725> for more information
[INFO] [stderr]     = help: add `#![feature(proc_macro_span)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `to_string` found for struct `std::path::PathBuf` in the current scope
[INFO] [stderr]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.3.7/src/unstable.rs:172:43
[INFO] [stderr]      |
[INFO] [stderr] 172  |           let filename = FileName(sf.path().to_string());
[INFO] [stderr]      |                                             ^^^^^^^^^ help: there is an associated function with a similar name: `to_str`
[INFO] [stderr]      |
[INFO] [stderr]      = note: the method `to_string` exists but the following trait bounds were not satisfied:
[INFO] [stderr]              `std::path::PathBuf: std::fmt::Display`
[INFO] [stderr]              which is required by `std::path::PathBuf: std::string::ToString`
[INFO] [stderr]              `std::path::Path: std::fmt::Display`
[INFO] [stderr]              which is required by `std::path::Path: std::string::ToString`
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'proc_macro_span'
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.3.7/src/unstable.rs:182:16
[INFO] [stderr]     |
[INFO] [stderr] 182 |         self.0.is_real()
[INFO] [stderr]     |                ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #54725 <https://github.com/rust-lang/rust/issues/54725> for more information
[INFO] [stderr]     = help: add `#![feature(proc_macro_span)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'proc_macro_def_site'
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.3.7/src/unstable.rs:218:14
[INFO] [stderr]     |
[INFO] [stderr] 218 |         Span(proc_macro::Span::def_site())
[INFO] [stderr]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #54724 <https://github.com/rust-lang/rust/issues/54724> for more information
[INFO] [stderr]     = help: add `#![feature(proc_macro_def_site)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'proc_macro_span'
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.3.7/src/unstable.rs:222:21
[INFO] [stderr]     |
[INFO] [stderr] 222 |         Span(self.0.resolved_at(other.0))
[INFO] [stderr]     |                     ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #54725 <https://github.com/rust-lang/rust/issues/54725> for more information
[INFO] [stderr]     = help: add `#![feature(proc_macro_span)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'proc_macro_span'
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.3.7/src/unstable.rs:226:21
[INFO] [stderr]     |
[INFO] [stderr] 226 |         Span(self.0.located_at(other.0))
[INFO] [stderr]     |                     ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #54725 <https://github.com/rust-lang/rust/issues/54725> for more information
[INFO] [stderr]     = help: add `#![feature(proc_macro_span)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'proc_macro_span'
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.3.7/src/unstable.rs:234:32
[INFO] [stderr]     |
[INFO] [stderr] 234 |         SourceFile::new(self.0.source_file())
[INFO] [stderr]     |                                ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #54725 <https://github.com/rust-lang/rust/issues/54725> for more information
[INFO] [stderr]     = help: add `#![feature(proc_macro_span)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'proc_macro_span'
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.3.7/src/unstable.rs:238:62
[INFO] [stderr]     |
[INFO] [stderr] 238 |         let proc_macro::LineColumn { line, column } = self.0.start();
[INFO] [stderr]     |                                                              ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #54725 <https://github.com/rust-lang/rust/issues/54725> for more information
[INFO] [stderr]     = help: add `#![feature(proc_macro_span)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'proc_macro_span'
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.3.7/src/unstable.rs:238:38
[INFO] [stderr]     |
[INFO] [stderr] 238 |         let proc_macro::LineColumn { line, column } = self.0.start();
[INFO] [stderr]     |                                      ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #54725 <https://github.com/rust-lang/rust/issues/54725> for more information
[INFO] [stderr]     = help: add `#![feature(proc_macro_span)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'proc_macro_span'
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.3.7/src/unstable.rs:238:44
[INFO] [stderr]     |
[INFO] [stderr] 238 |         let proc_macro::LineColumn { line, column } = self.0.start();
[INFO] [stderr]     |                                            ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #54725 <https://github.com/rust-lang/rust/issues/54725> for more information
[INFO] [stderr]     = help: add `#![feature(proc_macro_span)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'proc_macro_span'
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.3.7/src/unstable.rs:243:62
[INFO] [stderr]     |
[INFO] [stderr] 243 |         let proc_macro::LineColumn { line, column } = self.0.end();
[INFO] [stderr]     |                                                              ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #54725 <https://github.com/rust-lang/rust/issues/54725> for more information
[INFO] [stderr]     = help: add `#![feature(proc_macro_span)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'proc_macro_span'
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.3.7/src/unstable.rs:243:38
[INFO] [stderr]     |
[INFO] [stderr] 243 |         let proc_macro::LineColumn { line, column } = self.0.end();
[INFO] [stderr]     |                                      ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #54725 <https://github.com/rust-lang/rust/issues/54725> for more information
[INFO] [stderr]     = help: add `#![feature(proc_macro_span)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'proc_macro_span'
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.3.7/src/unstable.rs:243:44
[INFO] [stderr]     |
[INFO] [stderr] 243 |         let proc_macro::LineColumn { line, column } = self.0.end();
[INFO] [stderr]     |                                            ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #54725 <https://github.com/rust-lang/rust/issues/54725> for more information
[INFO] [stderr]     = help: add `#![feature(proc_macro_span)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'proc_macro_span'
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.3.7/src/unstable.rs:248:16
[INFO] [stderr]     |
[INFO] [stderr] 248 |         self.0.join(other.0).map(Span)
[INFO] [stderr]     |                ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #54725 <https://github.com/rust-lang/rust/issues/54725> for more information
[INFO] [stderr]     = help: add `#![feature(proc_macro_span)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'proc_macro_span'
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-0.3.7/src/unstable.rs:252:16
[INFO] [stderr]     |
[INFO] [stderr] 252 |         self.0.eq(&other.0)
[INFO] [stderr]     |                ^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: see issue #54725 <https://github.com/rust-lang/rust/issues/54725> for more information
[INFO] [stderr]     = help: add `#![feature(proc_macro_span)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 25 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0412, E0433, E0599, E0658.
[INFO] [stderr] For more information about an error, try `rustc --explain E0412`.
[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 `"docker" "inspect" "160d78d97fe7095c2bcfe18f17699b23f224dc641f5144580cadad56f532ae97"`
[INFO] running `"docker" "rm" "-f" "160d78d97fe7095c2bcfe18f17699b23f224dc641f5144580cadad56f532ae97"`
[INFO] [stdout] 160d78d97fe7095c2bcfe18f17699b23f224dc641f5144580cadad56f532ae97
