[INFO] updating cached repository https://github.com/nathanfaucett/rs-lexer [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/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] 4f76581633a3f655cd910d9a25519aa63704574d [INFO] testing nathanfaucett/rs-lexer against 1.38.0 for beta-1.39-1 [INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnathanfaucett%2Frs-lexer" "work/builds/worker-2/source"` [INFO] [stderr] Cloning into 'work/builds/worker-2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/nathanfaucett/rs-lexer on toolchain 1.38.0 [INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/nathanfaucett/rs-lexer [INFO] finished tweaking git repo https://github.com/nathanfaucett/rs-lexer [INFO] tweaked toml for git repo https://github.com/nathanfaucett/rs-lexer written to work/builds/worker-2/source/Cargo.toml [INFO] crate git repo https://github.com/nathanfaucett/rs-lexer already has a lockfile, it will not be regenerated [INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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" "+1.38.0" "build" "--frozen"` [INFO] [stdout] 94d3560bcfc3217b3b3064c6073d69bcfefa651c724f766d8a42f6830f5dd96b [INFO] running `"docker" "start" "-a" "94d3560bcfc3217b3b3064c6073d69bcfefa651c724f766d8a42f6830f5dd96b"` [INFO] [stderr] Compiling collection_traits v0.1.0 (https://github.com/nathanfaucett/rs-collection_traits.git#fe0ed3ab) [INFO] [stderr] error[E0432]: unresolved imports `alloc::linked_list`, `alloc::linked_list` [INFO] [stderr] --> /opt/rustwide/cargo-home/git/checkouts/rs-collection_traits-dca7cc2c0ed7a0a9/fe0ed3a/src/linked_list.rs:1:26 [INFO] [stderr] | [INFO] [stderr] 1 | use alloc::linked_list::{self, LinkedList}; [INFO] [stderr] | ^^^^^^^^^^^ ^^^^ no `linked_list` in the root [INFO] [stderr] | | [INFO] [stderr] | could not find `linked_list` in `alloc` [INFO] [stderr] [INFO] [stderr] error[E0412]: cannot find type `Iter` in module `linked_list` [INFO] [stderr] --> /opt/rustwide/cargo-home/git/checkouts/rs-collection_traits-dca7cc2c0ed7a0a9/fe0ed3a/src/linked_list.rs:125:30 [INFO] [stderr] | [INFO] [stderr] 125 | type Iter = linked_list::Iter<'a, T>; [INFO] [stderr] | ^^^^ not found in `linked_list` [INFO] [stderr] help: possible candidates are found in other modules, you can import them into scope [INFO] [stderr] | [INFO] [stderr] 1 | use core::slice::Iter; [INFO] [stderr] | [INFO] [stderr] 1 | use std::collections::binary_heap::Iter; [INFO] [stderr] | [INFO] [stderr] 1 | use std::collections::btree_map::Iter; [INFO] [stderr] | [INFO] [stderr] 1 | use std::collections::btree_set::Iter; [INFO] [stderr] | [INFO] [stderr] and 9 other candidates [INFO] [stderr] [INFO] [stderr] error[E0412]: cannot find type `IterMut` in module `linked_list` [INFO] [stderr] --> /opt/rustwide/cargo-home/git/checkouts/rs-collection_traits-dca7cc2c0ed7a0a9/fe0ed3a/src/linked_list.rs:134:33 [INFO] [stderr] | [INFO] [stderr] 134 | type IterMut = linked_list::IterMut<'a, T>; [INFO] [stderr] | ^^^^^^^ not found in `linked_list` [INFO] [stderr] help: possible candidates are found in other modules, you can import them into scope [INFO] [stderr] | [INFO] [stderr] 1 | use core::slice::IterMut; [INFO] [stderr] | [INFO] [stderr] 1 | use std::collections::btree_map::IterMut; [INFO] [stderr] | [INFO] [stderr] 1 | use std::collections::hash_map::IterMut; [INFO] [stderr] | [INFO] [stderr] 1 | use std::collections::linked_list::IterMut; [INFO] [stderr] | [INFO] [stderr] and 4 other candidates [INFO] [stderr] [INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stderr] --> /opt/rustwide/cargo-home/git/checkouts/rs-collection_traits-dca7cc2c0ed7a0a9/fe0ed3a/src/lib.rs:1:1 [INFO] [stderr] | [INFO] [stderr] 1 | #![feature(alloc)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stderr] --> /opt/rustwide/cargo-home/git/checkouts/rs-collection_traits-dca7cc2c0ed7a0a9/fe0ed3a/src/lib.rs:2:1 [INFO] [stderr] | [INFO] [stderr] 2 | #![feature(custom_attribute)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] error[E0207]: the type parameter `T` is not constrained by the impl trait, self type, or predicates [INFO] [stderr] --> /opt/rustwide/cargo-home/git/checkouts/rs-collection_traits-dca7cc2c0ed7a0a9/fe0ed3a/src/linked_list.rs:6:6 [INFO] [stderr] | [INFO] [stderr] 6 | impl Collection for LinkedList { [INFO] [stderr] | ^ unconstrained type parameter [INFO] [stderr] [INFO] [stderr] error[E0207]: the type parameter `T` is not constrained by the impl trait, self type, or predicates [INFO] [stderr] --> /opt/rustwide/cargo-home/git/checkouts/rs-collection_traits-dca7cc2c0ed7a0a9/fe0ed3a/src/linked_list.rs:11:6 [INFO] [stderr] | [INFO] [stderr] 11 | impl CollectionMut for LinkedList { [INFO] [stderr] | ^ unconstrained type parameter [INFO] [stderr] [INFO] [stderr] error[E0207]: the type parameter `T` is not constrained by the impl trait, self type, or predicates [INFO] [stderr] --> /opt/rustwide/cargo-home/git/checkouts/rs-collection_traits-dca7cc2c0ed7a0a9/fe0ed3a/src/linked_list.rs:91:6 [INFO] [stderr] | [INFO] [stderr] 91 | impl RemoveMut for LinkedList { [INFO] [stderr] | ^ unconstrained type parameter [INFO] [stderr] [INFO] [stderr] error[E0207]: the type parameter `T` is not constrained by the impl trait, self type, or predicates [INFO] [stderr] --> /opt/rustwide/cargo-home/git/checkouts/rs-collection_traits-dca7cc2c0ed7a0a9/fe0ed3a/src/linked_list.rs:109:6 [INFO] [stderr] | [INFO] [stderr] 109 | impl Get for LinkedList { [INFO] [stderr] | ^ unconstrained type parameter [INFO] [stderr] [INFO] [stderr] error[E0207]: the type parameter `T` is not constrained by the impl trait, self type, or predicates [INFO] [stderr] --> /opt/rustwide/cargo-home/git/checkouts/rs-collection_traits-dca7cc2c0ed7a0a9/fe0ed3a/src/linked_list.rs:117:6 [INFO] [stderr] | [INFO] [stderr] 117 | impl GetMut for LinkedList { [INFO] [stderr] | ^ unconstrained type parameter [INFO] [stderr] [INFO] [stderr] error: aborting due to 10 previous errors [INFO] [stderr] [INFO] [stderr] Some errors have detailed explanations: E0207, E0412, E0432, E0554. [INFO] [stderr] For more information about an error, try `rustc --explain E0207`. [INFO] [stderr] error: Could not compile `collection_traits`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `"docker" "inspect" "94d3560bcfc3217b3b3064c6073d69bcfefa651c724f766d8a42f6830f5dd96b"` [INFO] running `"docker" "rm" "-f" "94d3560bcfc3217b3b3064c6073d69bcfefa651c724f766d8a42f6830f5dd96b"` [INFO] [stdout] 94d3560bcfc3217b3b3064c6073d69bcfefa651c724f766d8a42f6830f5dd96b