[INFO] cloning repository https://github.com/zegl/kram-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/zegl/kram-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzegl%2Fkram-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzegl%2Fkram-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cff99c048aa188d71d57a3fa7a8bade0556178de
[INFO] checking zegl/kram-rust against try#3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f for pr-87248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzegl%2Fkram-rust" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/zegl/kram-rust on toolchain 3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/zegl/kram-rust
[INFO] finished tweaking git repo https://github.com/zegl/kram-rust
[INFO] tweaked toml for git repo https://github.com/zegl/kram-rust written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/zegl/kram-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 160b728067d8bc5ecb9b3c0b3ab873ae098a07be0de7c5045991e641b4460ce8
[INFO] running `Command { std: "docker" "start" "-a" "160b728067d8bc5ecb9b3c0b3ab873ae098a07be0de7c5045991e641b4460ce8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "160b728067d8bc5ecb9b3c0b3ab873ae098a07be0de7c5045991e641b4460ce8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "160b728067d8bc5ecb9b3c0b3ab873ae098a07be0de7c5045991e641b4460ce8", kill_on_drop: false }`
[INFO] [stdout] 160b728067d8bc5ecb9b3c0b3ab873ae098a07be0de7c5045991e641b4460ce8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bb4f9f196a3dcf24021655c88fd019a74f307d6071c8433b24cb513d48d59f8a
[INFO] running `Command { std: "docker" "start" "-a" "bb4f9f196a3dcf24021655c88fd019a74f307d6071c8433b24cb513d48d59f8a", kill_on_drop: false }`
[INFO] [stderr]     Checking kram-rust v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/vm/mod.rs:11:19
[INFO] [stdout]    |
[INFO] [stdout] 11 |     classes: Vec<Box<Library>>,
[INFO] [stdout]    |                      ^^^^^^^ help: use `dyn`: `dyn Library`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `PUSH_CLASS` should have an upper camel case name
[INFO] [stdout]    --> src/vm/mod.rs:129:2
[INFO] [stdout]     |
[INFO] [stdout] 129 |     PUSH_CLASS,
[INFO] [stdout]     |     ^^^^^^^^^^ help: convert the identifier to upper camel case: `PushClass`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/vm/mod.rs:230:17
[INFO] [stdout]     |
[INFO] [stdout] 230 |     Reference: Box<Library>,
[INFO] [stdout]     |                    ^^^^^^^ help: use `dyn`: `dyn Library`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/vm/mod.rs:260:34
[INFO] [stdout]     |
[INFO] [stdout] 260 |     pub fn reference(reference: Box<Library>) -> Value {
[INFO] [stdout]     |                                     ^^^^^^^ help: use `dyn`: `dyn Library`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `lexer::Lexer`
[INFO] [stdout]  --> src/parser/mod.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use lexer::Lexer;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `CLASS_BODY` should have an upper camel case name
[INFO] [stdout]    --> src/parser/mod.rs:527:2
[INFO] [stdout]     |
[INFO] [stdout] 527 |     CLASS_BODY,
[INFO] [stdout]     |     ^^^^^^^^^^ help: convert the identifier to upper camel case: `ClassBody`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `PUSH_CLASS` should have an upper camel case name
[INFO] [stdout]    --> src/parser/mod.rs:528:2
[INFO] [stdout]     |
[INFO] [stdout] 528 |     PUSH_CLASS,
[INFO] [stdout]     |     ^^^^^^^^^^ help: convert the identifier to upper camel case: `PushClass`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `METHOD_PARAMETERS` should have an upper camel case name
[INFO] [stdout]    --> src/parser/mod.rs:529:2
[INFO] [stdout]     |
[INFO] [stdout] 529 |     METHOD_PARAMETERS,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `MethodParameters`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]  --> src/libraries/mod.rs:6:17
[INFO] [stdout]   |
[INFO] [stdout] 6 |     fn call(&self, String) -> Value;
[INFO] [stdout]   |                    ^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: String`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/libraries/mod.rs:9:26
[INFO] [stdout]   |
[INFO] [stdout] 9 | impl std::fmt::Debug for Library {
[INFO] [stdout]   |                          ^^^^^^^ help: use `dyn`: `dyn Library`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/vm/mod.rs:11:19
[INFO] [stdout]    |
[INFO] [stdout] 11 |     classes: Vec<Box<Library>>,
[INFO] [stdout]    |                      ^^^^^^^ help: use `dyn`: `dyn Library`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `PUSH_CLASS` should have an upper camel case name
[INFO] [stdout]    --> src/vm/mod.rs:129:2
[INFO] [stdout]     |
[INFO] [stdout] 129 |     PUSH_CLASS,
[INFO] [stdout]     |     ^^^^^^^^^^ help: convert the identifier to upper camel case: `PushClass`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/vm/mod.rs:230:17
[INFO] [stdout]     |
[INFO] [stdout] 230 |     Reference: Box<Library>,
[INFO] [stdout]     |                    ^^^^^^^ help: use `dyn`: `dyn Library`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/vm/mod.rs:260:34
[INFO] [stdout]     |
[INFO] [stdout] 260 |     pub fn reference(reference: Box<Library>) -> Value {
[INFO] [stdout]     |                                     ^^^^^^^ help: use `dyn`: `dyn Library`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `lexer::Lexer`
[INFO] [stdout]  --> src/parser/mod.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use lexer::Lexer;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `CLASS_BODY` should have an upper camel case name
[INFO] [stdout]    --> src/parser/mod.rs:527:2
[INFO] [stdout]     |
[INFO] [stdout] 527 |     CLASS_BODY,
[INFO] [stdout]     |     ^^^^^^^^^^ help: convert the identifier to upper camel case: `ClassBody`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `PUSH_CLASS` should have an upper camel case name
[INFO] [stdout]    --> src/parser/mod.rs:528:2
[INFO] [stdout]     |
[INFO] [stdout] 528 |     PUSH_CLASS,
[INFO] [stdout]     |     ^^^^^^^^^^ help: convert the identifier to upper camel case: `PushClass`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `METHOD_PARAMETERS` should have an upper camel case name
[INFO] [stdout]    --> src/parser/mod.rs:529:2
[INFO] [stdout]     |
[INFO] [stdout] 529 |     METHOD_PARAMETERS,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `MethodParameters`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]  --> src/libraries/mod.rs:6:17
[INFO] [stdout]   |
[INFO] [stdout] 6 |     fn call(&self, String) -> Value;
[INFO] [stdout]   |                    ^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: String`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/libraries/mod.rs:9:26
[INFO] [stdout]   |
[INFO] [stdout] 9 | impl std::fmt::Debug for Library {
[INFO] [stdout]   |                          ^^^^^^^ help: use `dyn`: `dyn Library`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `dyn Library: Clone` is not satisfied
[INFO] [stdout]    --> src/vm/mod.rs:230:2
[INFO] [stdout]     |
[INFO] [stdout] 230 |     Reference: Box<Library>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^ the trait `Clone` is not implemented for `dyn Library`
[INFO] [stdout]     |
[INFO] [stdout]     = note: required because of the requirements on the impl of `Clone` for `Box<dyn Library>`
[INFO] [stdout]     = note: required by `clone`
[INFO] [stdout]     = note: this error originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `dyn Library: Clone` is not satisfied
[INFO] [stdout]    --> src/vm/mod.rs:230:2
[INFO] [stdout]     |
[INFO] [stdout] 230 |     Reference: Box<Library>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^ the trait `Clone` is not implemented for `dyn Library`
[INFO] [stdout]     |
[INFO] [stdout]     = note: required because of the requirements on the impl of `Clone` for `Box<dyn Library>`
[INFO] [stdout]     = note: required by `clone`
[INFO] [stdout]     = note: this error originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0063]: missing field `Reference` in initializer of `Value`
[INFO] [stdout]    --> src/vm/mod.rs:241:3
[INFO] [stdout]     |
[INFO] [stdout] 241 |         Value {
[INFO] [stdout]     |         ^^^^^ missing `Reference`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0063]: missing field `Reference` in initializer of `Value`
[INFO] [stdout]    --> src/vm/mod.rs:241:3
[INFO] [stdout]     |
[INFO] [stdout] 241 |         Value {
[INFO] [stdout]     |         ^^^^^ missing `Reference`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/libraries/mod.rs:10:51
[INFO] [stdout]    |
[INFO] [stdout] 10 |     fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
[INFO] [stdout]    |        ---                                        ^^^^^^^^^^^^^^^^ expected enum `Result`, found `()`
[INFO] [stdout]    |        |
[INFO] [stdout]    |        implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stdout]    |
[INFO] [stdout]    = note:   expected enum `Result<(), std::fmt::Error>`
[INFO] [stdout]            found unit type `()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/libraries/mod.rs:10:51
[INFO] [stdout]    |
[INFO] [stdout] 10 |     fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
[INFO] [stdout]    |        ---                                        ^^^^^^^^^^^^^^^^ expected enum `Result`, found `()`
[INFO] [stdout]    |        |
[INFO] [stdout]    |        implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stdout]    |
[INFO] [stdout]    = note:   expected enum `Result<(), std::fmt::Error>`
[INFO] [stdout]            found unit type `()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors; 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0063, E0277, E0308.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0063`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors; 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0063, E0277, E0308.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0063`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `kram-rust` due to 4 previous errors; 10 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "bb4f9f196a3dcf24021655c88fd019a74f307d6071c8433b24cb513d48d59f8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb4f9f196a3dcf24021655c88fd019a74f307d6071c8433b24cb513d48d59f8a", kill_on_drop: false }`
[INFO] [stdout] bb4f9f196a3dcf24021655c88fd019a74f307d6071c8433b24cb513d48d59f8a