[INFO] cloning repository https://github.com/rtfeldman/rbt
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rtfeldman/rbt" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frtfeldman%2Frbt", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frtfeldman%2Frbt'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 083799c4af779b04e0484ca9b142ac9aeea3f29f
[INFO] checking rtfeldman/rbt against try#901d6c1c62d7c61e05469e996c297476078ee06b for pr-157082
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frtfeldman%2Frbt" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/rtfeldman/rbt
[INFO] finished tweaking git repo https://github.com/rtfeldman/rbt
[INFO] tweaked toml for git repo https://github.com/rtfeldman/rbt written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/rtfeldman/rbt on toolchain 901d6c1c62d7c61e05469e996c297476078ee06b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+901d6c1c62d7c61e05469e996c297476078ee06b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/rtfeldman/rbt 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" "+901d6c1c62d7c61e05469e996c297476078ee06b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3e793bdf10248eb2ddbd6b0faebed8155c11b4589982e2893733958d93e8d540" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 03343216f7dd2465c29c67cd60b495728f7b692dd24349b954255eeb2eb66de5
[INFO] running `Command { std: "docker" "start" "03343216f7dd2465c29c67cd60b495728f7b692dd24349b954255eeb2eb66de5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "03343216f7dd2465c29c67cd60b495728f7b692dd24349b954255eeb2eb66de5" "/opt/rustwide/cargo-home/bin/cargo" "+901d6c1c62d7c61e05469e996c297476078ee06b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "03343216f7dd2465c29c67cd60b495728f7b692dd24349b954255eeb2eb66de5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "03343216f7dd2465c29c67cd60b495728f7b692dd24349b954255eeb2eb66de5" "/opt/rustwide/cargo-home/bin/cargo" "+901d6c1c62d7c61e05469e996c297476078ee06b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.42
[INFO] [stderr]    Compiling syn v1.0.98
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling futures-core v0.3.25
[INFO] [stderr]    Compiling futures-channel v0.3.25
[INFO] [stderr]    Compiling futures-task v0.3.25
[INFO] [stderr]    Compiling futures-util v0.3.25
[INFO] [stderr]     Checking futures-sink v0.3.25
[INFO] [stderr]    Compiling serde_derive v1.0.143
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.10
[INFO] [stderr]    Compiling unicode-xid v0.2.3
[INFO] [stderr]     Checking itoa v1.0.3
[INFO] [stderr]    Compiling serde v1.0.143
[INFO] [stderr]     Checking futures-io v0.3.25
[INFO] [stderr]    Compiling blake3 v1.3.1
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking inotify-sys v0.1.5
[INFO] [stderr]    Compiling tokio v1.21.2
[INFO] [stderr]    Compiling time-macros v0.2.4
[INFO] [stderr]     Checking lazycell v1.3.0
[INFO] [stderr]     Checking subtle v2.4.1
[INFO] [stderr]     Checking num_threads v0.1.6
[INFO] [stderr]     Checking arrayvec v0.7.2
[INFO] [stderr]    Compiling anyhow v1.0.58
[INFO] [stderr]    Compiling serde_json v1.0.83
[INFO] [stderr]     Checking walkdir v2.3.2
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking digest v0.10.3
[INFO] [stderr]     Checking clap_lex v0.3.0
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking mio v0.8.4
[INFO] [stderr]     Checking inotify v0.7.1
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]     Checking colored v2.0.0
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]     Checking filetime v0.2.17
[INFO] [stderr]     Checking path-dedot v3.0.17
[INFO] [stderr]     Checking bytes v1.2.1
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking ryu v1.0.11
[INFO] [stderr]    Compiling rbt v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking fastrand v1.8.0
[INFO] [stderr]     Checking concolor-query v0.0.5
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking concolor v0.0.8
[INFO] [stderr]     Checking path-absolutize v3.0.13
[INFO] [stderr]     Checking sled v0.34.7
[INFO] [stderr]     Checking roc_std v0.0.1 (/opt/rustwide/workdir/vendor/roc_std)
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking xxhash-rust v0.8.5
[INFO] [stderr]     Checking yansi v0.5.1
[INFO] [stdout] warning: unexpected `cfg` condition value: `no_std`
[INFO] [stdout]    --> vendor/roc_std/src/roc_str.rs:556:11
[INFO] [stdout]     |
[INFO] [stdout] 556 | #[cfg(not(feature = "no_std"))]
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `serde` and `std`
[INFO] [stdout]     = help: consider adding `no_std` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature `core_intrinsics`: intrinsics are unlikely to ever be stabilized, instead they should be used through stabilized interfaces in the rest of the standard library
[INFO] [stdout]  --> vendor/roc_std/src/roc_list.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     intrinsics::copy_nonoverlapping,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: add `#![feature(core_intrinsics)]` to the crate attributes to enable
[INFO] [stdout]   = note: this compiler was built on 2026-05-28; consider upgrading it if it is out of date
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking tempfile v3.3.0
[INFO] [stderr]     Checking predicates v2.1.1
[INFO] [stderr]    Compiling quote v1.0.20
[INFO] [stdout] For more information about this error, try `rustc --explain E0658`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `roc_std` (lib) due to 1 previous error; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "03343216f7dd2465c29c67cd60b495728f7b692dd24349b954255eeb2eb66de5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "03343216f7dd2465c29c67cd60b495728f7b692dd24349b954255eeb2eb66de5", kill_on_drop: false }`
[INFO] [stdout] 03343216f7dd2465c29c67cd60b495728f7b692dd24349b954255eeb2eb66de5
