[INFO] cloning repository https://github.com/bsiegel/rust_sample
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bsiegel/rust_sample" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbsiegel%2Frust_sample", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbsiegel%2Frust_sample'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 259314aa135bb73c0870c5ccfb955afbd78f9471
[INFO] checking bsiegel/rust_sample against master#64b185eddaa1d7ddf5e0c024be23b9cbba6c1722 for pr-143929
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbsiegel%2Frust_sample" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/bsiegel/rust_sample
[INFO] finished tweaking git repo https://github.com/bsiegel/rust_sample
[INFO] tweaked toml for git repo https://github.com/bsiegel/rust_sample written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/bsiegel/rust_sample on toolchain 64b185eddaa1d7ddf5e0c024be23b9cbba6c1722
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+64b185eddaa1d7ddf5e0c024be23b9cbba6c1722" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/bsiegel/rust_sample 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" "+64b185eddaa1d7ddf5e0c024be23b9cbba6c1722" "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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+64b185eddaa1d7ddf5e0c024be23b9cbba6c1722" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 037a7bea1a083647f9ee4cde9b55bc77999f747ff0dbcdfe58be4bc9abf7b285
[INFO] running `Command { std: "docker" "start" "-a" "037a7bea1a083647f9ee4cde9b55bc77999f747ff0dbcdfe58be4bc9abf7b285", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "037a7bea1a083647f9ee4cde9b55bc77999f747ff0dbcdfe58be4bc9abf7b285", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "037a7bea1a083647f9ee4cde9b55bc77999f747ff0dbcdfe58be4bc9abf7b285", kill_on_drop: false }`
[INFO] [stdout] 037a7bea1a083647f9ee4cde9b55bc77999f747ff0dbcdfe58be4bc9abf7b285
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=forbid" "-e" "RUSTDOCFLAGS=--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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+64b185eddaa1d7ddf5e0c024be23b9cbba6c1722" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1ef89e3438681ecf497526f3dd82e50fec66a5dc5676d4eeed0c394c38ca4284
[INFO] running `Command { std: "docker" "start" "-a" "1ef89e3438681ecf497526f3dd82e50fec66a5dc5676d4eeed0c394c38ca4284", kill_on_drop: false }`
[INFO] [stderr]     Checking rust_sample v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0412]: cannot find type `Node` in this scope
[INFO] [stdout]   --> src/main.rs:45:44
[INFO] [stdout]    |
[INFO] [stdout] 45 | impl<'a, T: fmt::Display> fmt::Display for Node<'a, T> {
[INFO] [stdout]    |                                            ^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Node` in this scope
[INFO] [stdout]   --> src/main.rs:54:29
[INFO] [stdout]    |
[INFO] [stdout] 54 | fn prepend<'a, T>(list: &'a Node<T>, value: T) -> Node<'a, T> {
[INFO] [stdout]    |                             ^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Node` in this scope
[INFO] [stdout]   --> src/main.rs:54:51
[INFO] [stdout]    |
[INFO] [stdout] 54 | fn prepend<'a, T>(list: &'a Node<T>, value: T) -> Node<'a, T> {
[INFO] [stdout]    |                                                   ^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Node` in this scope
[INFO] [stdout]   --> src/main.rs:62:15
[INFO] [stdout]    |
[INFO] [stdout] 62 |     let data: Node<u8> = Node::Data(2, &Node::Empty);
[INFO] [stdout]    |               ^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `Self` is not valid in the self type of an impl block
[INFO] [stdout]   --> src/main.rs:14:41
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl<'t, T> NodeList for Option<(T, &'t Self)> {
[INFO] [stdout]    |                                         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: replace `Self` with a different type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Node`
[INFO] [stdout]   --> src/main.rs:56:28
[INFO] [stdout]    |
[INFO] [stdout] 56 |         Node::Data(_,_) => Node::Data(value, list),
[INFO] [stdout]    |                            ^^^^ use of undeclared type `Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Node`
[INFO] [stdout]   --> src/main.rs:57:24
[INFO] [stdout]    |
[INFO] [stdout] 57 |         Node::Empty => Node::Data(value, &Node::Empty)
[INFO] [stdout]    |                        ^^^^ use of undeclared type `Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Node`
[INFO] [stdout]   --> src/main.rs:57:43
[INFO] [stdout]    |
[INFO] [stdout] 57 |         Node::Empty => Node::Data(value, &Node::Empty)
[INFO] [stdout]    |                                           ^^^^ use of undeclared type `Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Node`
[INFO] [stdout]   --> src/main.rs:62:26
[INFO] [stdout]    |
[INFO] [stdout] 62 |     let data: Node<u8> = Node::Data(2, &Node::Empty);
[INFO] [stdout]    |                          ^^^^ use of undeclared type `Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Node`
[INFO] [stdout]   --> src/main.rs:62:41
[INFO] [stdout]    |
[INFO] [stdout] 62 |     let data: Node<u8> = Node::Data(2, &Node::Empty);
[INFO] [stdout]    |                                         ^^^^ use of undeclared type `Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Node`
[INFO] [stdout]   --> src/main.rs:48:13
[INFO] [stdout]    |
[INFO] [stdout] 48 |             Node::Empty => write!(f, "empty"),
[INFO] [stdout]    |             ^^^^ use of undeclared type `Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Node`
[INFO] [stdout]   --> src/main.rs:49:13
[INFO] [stdout]    |
[INFO] [stdout] 49 |             Node::Data(h,t) => write!(f, "{}, {}", h, t)
[INFO] [stdout]    |             ^^^^ use of undeclared type `Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Node`
[INFO] [stdout]   --> src/main.rs:56:9
[INFO] [stdout]    |
[INFO] [stdout] 56 |         Node::Data(_,_) => Node::Data(value, list),
[INFO] [stdout]    |         ^^^^ use of undeclared type `Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Node`
[INFO] [stdout]   --> src/main.rs:57:9
[INFO] [stdout]    |
[INFO] [stdout] 57 |         Node::Empty => Node::Data(value, &Node::Empty)
[INFO] [stdout]    |         ^^^^ use of undeclared type `Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0412, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0412`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust_sample` (bin "rust_sample" test) due to 14 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0412]: cannot find type `Node` in this scope
[INFO] [stdout]   --> src/main.rs:45:44
[INFO] [stdout]    |
[INFO] [stdout] 45 | impl<'a, T: fmt::Display> fmt::Display for Node<'a, T> {
[INFO] [stdout]    |                                            ^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Node` in this scope
[INFO] [stdout]   --> src/main.rs:54:29
[INFO] [stdout]    |
[INFO] [stdout] 54 | fn prepend<'a, T>(list: &'a Node<T>, value: T) -> Node<'a, T> {
[INFO] [stdout]    |                             ^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Node` in this scope
[INFO] [stdout]   --> src/main.rs:54:51
[INFO] [stdout]    |
[INFO] [stdout] 54 | fn prepend<'a, T>(list: &'a Node<T>, value: T) -> Node<'a, T> {
[INFO] [stdout]    |                                                   ^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Node` in this scope
[INFO] [stdout]   --> src/main.rs:62:15
[INFO] [stdout]    |
[INFO] [stdout] 62 |     let data: Node<u8> = Node::Data(2, &Node::Empty);
[INFO] [stdout]    |               ^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `Self` is not valid in the self type of an impl block
[INFO] [stdout]   --> src/main.rs:14:41
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl<'t, T> NodeList for Option<(T, &'t Self)> {
[INFO] [stdout]    |                                         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: replace `Self` with a different type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Node`
[INFO] [stdout]   --> src/main.rs:56:28
[INFO] [stdout]    |
[INFO] [stdout] 56 |         Node::Data(_,_) => Node::Data(value, list),
[INFO] [stdout]    |                            ^^^^ use of undeclared type `Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Node`
[INFO] [stdout]   --> src/main.rs:57:24
[INFO] [stdout]    |
[INFO] [stdout] 57 |         Node::Empty => Node::Data(value, &Node::Empty)
[INFO] [stdout]    |                        ^^^^ use of undeclared type `Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Node`
[INFO] [stdout]   --> src/main.rs:57:43
[INFO] [stdout]    |
[INFO] [stdout] 57 |         Node::Empty => Node::Data(value, &Node::Empty)
[INFO] [stdout]    |                                           ^^^^ use of undeclared type `Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Node`
[INFO] [stdout]   --> src/main.rs:62:26
[INFO] [stdout]    |
[INFO] [stdout] 62 |     let data: Node<u8> = Node::Data(2, &Node::Empty);
[INFO] [stdout]    |                          ^^^^ use of undeclared type `Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Node`
[INFO] [stdout]   --> src/main.rs:62:41
[INFO] [stdout]    |
[INFO] [stdout] 62 |     let data: Node<u8> = Node::Data(2, &Node::Empty);
[INFO] [stdout]    |                                         ^^^^ use of undeclared type `Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Node`
[INFO] [stdout]   --> src/main.rs:48:13
[INFO] [stdout]    |
[INFO] [stdout] 48 |             Node::Empty => write!(f, "empty"),
[INFO] [stdout]    |             ^^^^ use of undeclared type `Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Node`
[INFO] [stdout]   --> src/main.rs:49:13
[INFO] [stdout]    |
[INFO] [stdout] 49 |             Node::Data(h,t) => write!(f, "{}, {}", h, t)
[INFO] [stdout]    |             ^^^^ use of undeclared type `Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Node`
[INFO] [stdout]   --> src/main.rs:56:9
[INFO] [stdout]    |
[INFO] [stdout] 56 |         Node::Data(_,_) => Node::Data(value, list),
[INFO] [stdout]    |         ^^^^ use of undeclared type `Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Node`
[INFO] [stdout]   --> src/main.rs:57:9
[INFO] [stdout]    |
[INFO] [stdout] 57 |         Node::Empty => Node::Data(value, &Node::Empty)
[INFO] [stdout]    |         ^^^^ use of undeclared type `Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0412, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0412`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust_sample` (bin "rust_sample") due to 14 previous errors
[INFO] running `Command { std: "docker" "inspect" "1ef89e3438681ecf497526f3dd82e50fec66a5dc5676d4eeed0c394c38ca4284", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ef89e3438681ecf497526f3dd82e50fec66a5dc5676d4eeed0c394c38ca4284", kill_on_drop: false }`
[INFO] [stdout] 1ef89e3438681ecf497526f3dd82e50fec66a5dc5676d4eeed0c394c38ca4284