[INFO] cloning repository https://github.com/nathanfaucett/rs-persistent_vector
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nathanfaucett/rs-persistent_vector" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnathanfaucett%2Frs-persistent_vector", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnathanfaucett%2Frs-persistent_vector'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8fd42d8b124aa8456855b32019a98fb8a7627479
[INFO] checking nathanfaucett/rs-persistent_vector/8fd42d8b124aa8456855b32019a98fb8a7627479 against master#f8c27dfe1a2e7fb538fd91dad53de06992c7c967 for pr-138915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnathanfaucett%2Frs-persistent_vector" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nathanfaucett/rs-persistent_vector on toolchain f8c27dfe1a2e7fb538fd91dad53de06992c7c967
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f8c27dfe1a2e7fb538fd91dad53de06992c7c967" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/nathanfaucett/rs-persistent_vector
[INFO] finished tweaking git repo https://github.com/nathanfaucett/rs-persistent_vector
[INFO] tweaked toml for git repo https://github.com/nathanfaucett/rs-persistent_vector written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/nathanfaucett/rs-persistent_vector 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" "+f8c27dfe1a2e7fb538fd91dad53de06992c7c967" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]     Updating git repository `https://github.com/nathanfaucett/rs-collection_traits`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+f8c27dfe1a2e7fb538fd91dad53de06992c7c967" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 45e02424b26e4cc315b95f70b3fbab51fec197d868192520a233e146ea73f3f7
[INFO] running `Command { std: "docker" "start" "-a" "45e02424b26e4cc315b95f70b3fbab51fec197d868192520a233e146ea73f3f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "45e02424b26e4cc315b95f70b3fbab51fec197d868192520a233e146ea73f3f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "45e02424b26e4cc315b95f70b3fbab51fec197d868192520a233e146ea73f3f7", kill_on_drop: false }`
[INFO] [stdout] 45e02424b26e4cc315b95f70b3fbab51fec197d868192520a233e146ea73f3f7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+f8c27dfe1a2e7fb538fd91dad53de06992c7c967" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b095537d6396b3b35e28365c066e5a065197074fb66c14e62bd971332149c5f5
[INFO] running `Command { std: "docker" "start" "-a" "b095537d6396b3b35e28365c066e5a065197074fb66c14e62bd971332149c5f5", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]     Checking collection_traits v0.1.0 (https://github.com/nathanfaucett/rs-collection_traits#516b19e4)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> /opt/rustwide/cargo-home/git/checkouts/rs-collection_traits-3b9fe15cab829d05/516b19e/src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(custom_attribute)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: removed in favor of `#![register_tool]` and `#![register_attr]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0463]: can't find crate for `collections`
[INFO] [stdout]  --> /opt/rustwide/cargo-home/git/checkouts/rs-collection_traits-3b9fe15cab829d05/516b19e/src/lib.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | extern crate collections;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Iter` in module `linked_list`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/git/checkouts/rs-collection_traits-3b9fe15cab829d05/516b19e/src/linked_list.rs:73:30
[INFO] [stdout]    |
[INFO] [stdout] 73 |     type Iter = linked_list::Iter<'a, T>;
[INFO] [stdout]    |                              ^^^^ not found in `linked_list`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing one of these structs
[INFO] [stdout]    |
[INFO] [stdout] 1  + use core::option::Iter;
[INFO] [stdout]    |
[INFO] [stdout] 1  + use core::result::Iter;
[INFO] [stdout]    |
[INFO] [stdout] 1  + use core::slice::Iter;
[INFO] [stdout]    |
[INFO] [stdout] help: if you import `Iter`, refer to it directly
[INFO] [stdout]    |
[INFO] [stdout] 73 -     type Iter = linked_list::Iter<'a, T>;
[INFO] [stdout] 73 +     type Iter = Iter<'a, T>;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `IterMut` in module `linked_list`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/git/checkouts/rs-collection_traits-3b9fe15cab829d05/516b19e/src/linked_list.rs:82:33
[INFO] [stdout]    |
[INFO] [stdout] 82 |     type IterMut = linked_list::IterMut<'a, T>;
[INFO] [stdout]    |                                 ^^^^^^^ not found in `linked_list`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing one of these structs
[INFO] [stdout]    |
[INFO] [stdout] 1  + use core::option::IterMut;
[INFO] [stdout]    |
[INFO] [stdout] 1  + use core::result::IterMut;
[INFO] [stdout]    |
[INFO] [stdout] 1  + use core::slice::IterMut;
[INFO] [stdout]    |
[INFO] [stdout] help: if you import `IterMut`, refer to it directly
[INFO] [stdout]    |
[INFO] [stdout] 82 -     type IterMut = linked_list::IterMut<'a, T>;
[INFO] [stdout] 82 +     type IterMut = IterMut<'a, T>;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `collections`
[INFO] [stdout]  --> /opt/rustwide/cargo-home/git/checkouts/rs-collection_traits-3b9fe15cab829d05/516b19e/src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(collections)]
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0412, E0463, E0557, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0412`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `collection_traits` (lib) due to 5 previous errors
[INFO] running `Command { std: "docker" "inspect" "b095537d6396b3b35e28365c066e5a065197074fb66c14e62bd971332149c5f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b095537d6396b3b35e28365c066e5a065197074fb66c14e62bd971332149c5f5", kill_on_drop: false }`
[INFO] [stdout] b095537d6396b3b35e28365c066e5a065197074fb66c14e62bd971332149c5f5