[INFO] cloning repository https://github.com/OpenTritium/sparse_ranges
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/OpenTritium/sparse_ranges" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FOpenTritium%2Fsparse_ranges", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FOpenTritium%2Fsparse_ranges'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1cffb72c751b167901e122357465b8b5f9ec1ff6
[INFO] checking OpenTritium/sparse_ranges against 1.95.0 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FOpenTritium%2Fsparse_ranges" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/OpenTritium/sparse_ranges
[INFO] finished tweaking git repo https://github.com/OpenTritium/sparse_ranges
[INFO] tweaked toml for git repo https://github.com/OpenTritium/sparse_ranges written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/OpenTritium/sparse_ranges on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/OpenTritium/sparse_ranges 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" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded gen_ops v0.4.0
[INFO] [stderr]   Downloaded clap v4.5.52
[INFO] [stderr]   Downloaded clap_builder v4.5.52
[INFO] [stderr]   Downloaded range-set-blaze v0.4.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 99e8f4695a0aba9fb5e50ac360602e3507ff2c666b2d6ebe8e923a6f7d5eb583
[INFO] running `Command { std: "docker" "start" "-a" "99e8f4695a0aba9fb5e50ac360602e3507ff2c666b2d6ebe8e923a6f7d5eb583", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "99e8f4695a0aba9fb5e50ac360602e3507ff2c666b2d6ebe8e923a6f7d5eb583", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "99e8f4695a0aba9fb5e50ac360602e3507ff2c666b2d6ebe8e923a6f7d5eb583", kill_on_drop: false }`
[INFO] [stdout] 99e8f4695a0aba9fb5e50ac360602e3507ff2c666b2d6ebe8e923a6f7d5eb583
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7e1c5c63cb304f4b41739720c91d1f077dcb151036fda2bc0d769a8ca6dbb6d9
[INFO] running `Command { std: "docker" "start" "-a" "7e1c5c63cb304f4b41739720c91d1f077dcb151036fda2bc0d769a8ca6dbb6d9", kill_on_drop: false }`
[INFO] [stderr]    Compiling zerocopy v0.8.27
[INFO] [stderr]    Compiling find-msvc-tools v0.1.5
[INFO] [stderr]     Checking clap_lex v0.7.6
[INFO] [stderr]     Checking regex-automata v0.4.13
[INFO] [stderr]    Compiling syn v2.0.110
[INFO] [stderr]     Checking getrandom v0.3.4
[INFO] [stderr]     Checking serde_json v1.0.145
[INFO] [stderr]    Compiling range-set-blaze v0.4.1
[INFO] [stderr]     Checking page_size v0.6.0
[INFO] [stderr]     Checking gen_ops v0.4.0
[INFO] [stderr]     Checking criterion-plot v0.8.1
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking plotters v0.3.7
[INFO] [stderr]     Checking oorandom v11.1.5
[INFO] [stderr]     Checking rand_core v0.9.3
[INFO] [stderr]     Checking clap_builder v4.5.52
[INFO] [stderr]    Compiling cc v1.2.49
[INFO] [stderr]     Checking regex v1.12.2
[INFO] [stderr]    Compiling alloca v0.4.0
[INFO] [stderr]     Checking clap v4.5.52
[INFO] [stderr]    Compiling zerocopy-derive v0.8.27
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling thiserror-impl v2.0.17
[INFO] [stderr]     Checking thiserror v2.0.17
[INFO] [stderr]     Checking sparse_ranges v0.1.13 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(btree_cursors)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `sparse_ranges` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "7e1c5c63cb304f4b41739720c91d1f077dcb151036fda2bc0d769a8ca6dbb6d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e1c5c63cb304f4b41739720c91d1f077dcb151036fda2bc0d769a8ca6dbb6d9", kill_on_drop: false }`
[INFO] [stdout] 7e1c5c63cb304f4b41739720c91d1f077dcb151036fda2bc0d769a8ca6dbb6d9
