[INFO] cloning repository https://github.com/nikomatsakis/2022-06-15-blogpost
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nikomatsakis/2022-06-15-blogpost" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnikomatsakis%2F2022-06-15-blogpost", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnikomatsakis%2F2022-06-15-blogpost'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f280f91e9be03d37f273acf13502ef7dc1015db8
[INFO] testing nikomatsakis/2022-06-15-blogpost against 1.91.0 for beta-1.92-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnikomatsakis%2F2022-06-15-blogpost" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/nikomatsakis/2022-06-15-blogpost
[INFO] finished tweaking git repo https://github.com/nikomatsakis/2022-06-15-blogpost
[INFO] tweaked toml for git repo https://github.com/nikomatsakis/2022-06-15-blogpost written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/nikomatsakis/2022-06-15-blogpost on toolchain 1.91.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/nikomatsakis/2022-06-15-blogpost already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bc7a303e3fb036e60092f5ad231f4f1a8b3be734fc7e46850ce636e3129cdde2
[INFO] running `Command { std: "docker" "start" "-a" "bc7a303e3fb036e60092f5ad231f4f1a8b3be734fc7e46850ce636e3129cdde2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bc7a303e3fb036e60092f5ad231f4f1a8b3be734fc7e46850ce636e3129cdde2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc7a303e3fb036e60092f5ad231f4f1a8b3be734fc7e46850ce636e3129cdde2", kill_on_drop: false }`
[INFO] [stdout] bc7a303e3fb036e60092f5ad231f4f1a8b3be734fc7e46850ce636e3129cdde2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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=warn" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b784db494f3783ce70fbafa3f10dd130ce6665bc0e252055a5a0834d94718771
[INFO] running `Command { std: "docker" "start" "-a" "b784db494f3783ce70fbafa3f10dd130ce6665bc0e252055a5a0834d94718771", kill_on_drop: false }`
[INFO] [stderr]    Compiling example v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.21s
[INFO] running `Command { std: "docker" "inspect" "b784db494f3783ce70fbafa3f10dd130ce6665bc0e252055a5a0834d94718771", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b784db494f3783ce70fbafa3f10dd130ce6665bc0e252055a5a0834d94718771", kill_on_drop: false }`
[INFO] [stdout] b784db494f3783ce70fbafa3f10dd130ce6665bc0e252055a5a0834d94718771
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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=warn" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bd054b264a3d565a4124d74fe79788159a6a33589bb77f901c7304a1d22c5e5d
[INFO] running `Command { std: "docker" "start" "-a" "bd054b264a3d565a4124d74fe79788159a6a33589bb77f901c7304a1d22c5e5d", kill_on_drop: false }`
[INFO] [stderr]    Compiling example v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0597]: `parameters` does not live long enough
[INFO] [stdout]   --> examples/b.rs:92:53
[INFO] [stdout]    |
[INFO] [stdout] 58 | impl<'ast> Context<'ast> {
[INFO] [stdout]    |      ---- lifetime `'ast` defined here
[INFO] [stdout] ...
[INFO] [stdout] 91 |                 let parameters: Vec<_> = types.iter().cloned().map(ast::Parameter::Ty).collect();
[INFO] [stdout]    |                     ---------- binding `parameters` declared here
[INFO] [stdout] 92 |                 self.lower_angle_bracket_parameters(&parameters);
[INFO] [stdout]    |                 ------------------------------------^^^^^^^^^^^-
[INFO] [stdout]    |                 |                                   |
[INFO] [stdout]    |                 |                                   borrowed value does not live long enough
[INFO] [stdout]    |                 argument requires that `parameters` is borrowed for `'ast`
[INFO] [stdout] 93 |             }
[INFO] [stdout]    |             - `parameters` dropped here while still borrowed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0499]: cannot borrow `*self` as mutable more than once at a time
[INFO] [stdout]   --> examples/d.rs:76:13
[INFO] [stdout]    |
[INFO] [stdout] 62 | impl<'ast> Context<'ast> {
[INFO] [stdout]    |      ---- lifetime `'ast` defined here
[INFO] [stdout] ...
[INFO] [stdout] 76 |             self.lower_ty(input);
[INFO] [stdout]    |             ^^^^----------------
[INFO] [stdout]    |             |
[INFO] [stdout]    |             `*self` was mutably borrowed here in the previous iteration of the loop
[INFO] [stdout]    |             argument requires that `*self` is borrowed for `'ast`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0499]: cannot borrow `self.impl_trait_tys` as mutable more than once at a time
[INFO] [stdout]   --> examples/d.rs:81:26
[INFO] [stdout]    |
[INFO] [stdout] 62 | impl<'ast> Context<'ast> {
[INFO] [stdout]    |      ---- lifetime `'ast` defined here
[INFO] [stdout] ...
[INFO] [stdout] 76 |             self.lower_ty(input);
[INFO] [stdout]    |             --------------------
[INFO] [stdout]    |             |
[INFO] [stdout]    |             first mutable borrow occurs here
[INFO] [stdout]    |             argument requires that `*self` is borrowed for `'ast`
[INFO] [stdout] ...
[INFO] [stdout] 81 |         for trait_ref in self.impl_trait_tys.drain(len..) {
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^^^^ second mutable borrow occurs here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0499]: cannot borrow `*self` as mutable more than once at a time
[INFO] [stdout]   --> examples/d.rs:85:9
[INFO] [stdout]    |
[INFO] [stdout] 62 | impl<'ast> Context<'ast> {
[INFO] [stdout]    |      ---- lifetime `'ast` defined here
[INFO] [stdout] ...
[INFO] [stdout] 76 |             self.lower_ty(input);
[INFO] [stdout]    |             --------------------
[INFO] [stdout]    |             |
[INFO] [stdout]    |             first mutable borrow occurs here
[INFO] [stdout]    |             argument requires that `*self` is borrowed for `'ast`
[INFO] [stdout] ...
[INFO] [stdout] 85 |         self.lower_ty(&sig.output);
[INFO] [stdout]    |         ^^^^ second mutable borrow occurs here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0502]: cannot borrow `*self` as mutable because it is also borrowed as immutable
[INFO] [stdout]   --> examples/d.rs:98:17
[INFO] [stdout]    |
[INFO] [stdout] 62 | impl<'ast> Context<'ast> {
[INFO] [stdout]    |      ---- lifetime `'ast` defined here
[INFO] [stdout] ...
[INFO] [stdout] 97 |                 let parameters = self.arena.alloc(parameters);
[INFO] [stdout]    |                                  ---------- immutable borrow occurs here
[INFO] [stdout] 98 |                 self.lower_angle_bracket_parameters(parameters);
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 mutable borrow occurs here
[INFO] [stdout]    |                 argument requires that `self.arena` is borrowed for `'ast`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0499]: cannot borrow `*self` as mutable more than once at a time
[INFO] [stdout]    --> examples/d.rs:112:34
[INFO] [stdout]     |
[INFO] [stdout]  62 | impl<'ast> Context<'ast> {
[INFO] [stdout]     |      ---- lifetime `'ast` defined here
[INFO] [stdout] ...
[INFO] [stdout] 112 |                     let hir_ty = self.lower_ty(ty);
[INFO] [stdout]     |                                  ^^^^ second mutable borrow occurs here
[INFO] [stdout] ...
[INFO] [stdout] 116 |                     let hir_lifetime = self.lower_lifetime(lt);
[INFO] [stdout]     |                                        -----------------------
[INFO] [stdout]     |                                        |
[INFO] [stdout]     |                                        first mutable borrow occurs here
[INFO] [stdout]     |                                        argument requires that `*self` is borrowed for `'ast`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0499]: cannot borrow `*self` as mutable more than once at a time
[INFO] [stdout]    --> examples/d.rs:116:40
[INFO] [stdout]     |
[INFO] [stdout]  62 | impl<'ast> Context<'ast> {
[INFO] [stdout]     |      ---- lifetime `'ast` defined here
[INFO] [stdout] ...
[INFO] [stdout] 116 |                     let hir_lifetime = self.lower_lifetime(lt);
[INFO] [stdout]     |                                        ^^^^-------------------
[INFO] [stdout]     |                                        |
[INFO] [stdout]     |                                        `*self` was mutably borrowed here in the previous iteration of the loop
[INFO] [stdout]     |                                        argument requires that `*self` is borrowed for `'ast`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0499]: cannot borrow `*self` as mutable more than once at a time
[INFO] [stdout]    --> examples/d.rs:138:21
[INFO] [stdout]     |
[INFO] [stdout]  62 | impl<'ast> Context<'ast> {
[INFO] [stdout]     |      ---- lifetime `'ast` defined here
[INFO] [stdout] ...
[INFO] [stdout] 138 |                     self.lower_ty(parameter);
[INFO] [stdout]     |                     ^^^^--------------------
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     `*self` was mutably borrowed here in the previous iteration of the loop
[INFO] [stdout]     |                     argument requires that `*self` is borrowed for `'ast`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0597`.
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0499, E0502.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `example` (example "b") due to 1 previous error
[INFO] [stdout] For more information about an error, try `rustc --explain E0499`.
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `example` (example "d") due to 7 previous errors
[INFO] running `Command { std: "docker" "inspect" "bd054b264a3d565a4124d74fe79788159a6a33589bb77f901c7304a1d22c5e5d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd054b264a3d565a4124d74fe79788159a6a33589bb77f901c7304a1d22c5e5d", kill_on_drop: false }`
[INFO] [stdout] bd054b264a3d565a4124d74fe79788159a6a33589bb77f901c7304a1d22c5e5d
