[INFO] cloning repository https://github.com/schulke-214/algorithms [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/schulke-214/algorithms" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fschulke-214%2Falgorithms", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fschulke-214%2Falgorithms'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] f8002386c1cfb5da46140bc8db7f38a4b9d00242 [INFO] testing schulke-214/algorithms against 1.55.0 for beta-1.56-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fschulke-214%2Falgorithms" "/workspace/builds/worker-12/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/schulke-214/algorithms on toolchain 1.55.0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/schulke-214/algorithms [INFO] finished tweaking git repo https://github.com/schulke-214/algorithms [INFO] tweaked toml for git repo https://github.com/schulke-214/algorithms written to /workspace/builds/worker-12/source/Cargo.toml [INFO] crate git repo https://github.com/schulke-214/algorithms already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 6a40ebdb5cf17ccf4c8e15530c8e3d2c64ae1f8999e2897db8d7ab21b0a5b7b6 [INFO] running `Command { std: "docker" "start" "-a" "6a40ebdb5cf17ccf4c8e15530c8e3d2c64ae1f8999e2897db8d7ab21b0a5b7b6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "6a40ebdb5cf17ccf4c8e15530c8e3d2c64ae1f8999e2897db8d7ab21b0a5b7b6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6a40ebdb5cf17ccf4c8e15530c8e3d2c64ae1f8999e2897db8d7ab21b0a5b7b6", kill_on_drop: false }` [INFO] [stdout] 6a40ebdb5cf17ccf4c8e15530c8e3d2c64ae1f8999e2897db8d7ab21b0a5b7b6 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 227e3ac59be60742a5ee04303571d0bf30122b6d825a98c3ada4e803f1b71dfd [INFO] running `Command { std: "docker" "start" "-a" "227e3ac59be60742a5ee04303571d0bf30122b6d825a98c3ada4e803f1b71dfd", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling libc v0.2.48 [INFO] [stderr] Compiling proc-macro2 v1.0.10 [INFO] [stderr] Compiling unicode-xid v0.2.0 [INFO] [stderr] Compiling autocfg v0.1.2 [INFO] [stderr] Compiling syn v1.0.18 [INFO] [stderr] Compiling serde v1.0.106 [INFO] [stderr] Compiling ppv-lite86 v0.2.6 [INFO] [stderr] Compiling rand_core v0.3.1 [INFO] [stderr] Compiling rand_jitter v0.1.2 [INFO] [stderr] Compiling rand_pcg v0.1.1 [INFO] [stderr] Compiling rand_xorshift v0.1.1 [INFO] [stderr] Compiling rand_hc v0.1.0 [INFO] [stderr] Compiling rand_isaac v0.1.1 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Compiling getrandom v0.1.1 [INFO] [stderr] Compiling rand_os v0.1.2 [INFO] [stderr] Compiling quote v1.0.3 [INFO] [stderr] Compiling rand_core v0.5.1 [INFO] [stderr] Compiling rand_chacha v0.2.2 [INFO] [stderr] Compiling rand v0.7.3 [INFO] [stderr] Compiling serde_derive v1.0.106 [INFO] [stderr] Compiling uuid v0.8.1 [INFO] [stderr] Compiling algorithms v0.1.1 (/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(is_sorted)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Sub` [INFO] [stdout] --> src/data_structures/graph.rs:1:21 [INFO] [stdout] | [INFO] [stdout] 1 | use std::ops::{Add, Sub}; [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0658]: use of unstable library feature 'result_into_ok_or_err': newly added [INFO] [stdout] --> src/sorting/insertion_sort.rs:26:18 [INFO] [stdout] | [INFO] [stdout] 26 | .into_ok_or_err(); [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #82223 for more information [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 2 previous errors; 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0554, E0658. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0554`. [INFO] [stdout] [INFO] [stderr] error: could not compile `algorithms` due to 3 previous errors; 1 warning emitted [INFO] running `Command { std: "docker" "inspect" "227e3ac59be60742a5ee04303571d0bf30122b6d825a98c3ada4e803f1b71dfd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "227e3ac59be60742a5ee04303571d0bf30122b6d825a98c3ada4e803f1b71dfd", kill_on_drop: false }` [INFO] [stdout] 227e3ac59be60742a5ee04303571d0bf30122b6d825a98c3ada4e803f1b71dfd