[INFO] updating cached repository https://github.com/fdietze/chromogene [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/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] 391ebde42589af9af8b27a48cf7d465bc933c1f0 [INFO] testing fdietze/chromogene against 1.44.0 for beta-1.45-1 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffdietze%2Fchromogene" "/workspace/builds/worker-13/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/fdietze/chromogene on toolchain 1.44.0 [INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/fdietze/chromogene [INFO] finished tweaking git repo https://github.com/fdietze/chromogene [INFO] tweaked toml for git repo https://github.com/fdietze/chromogene written to /workspace/builds/worker-13/source/Cargo.toml [INFO] crate git repo https://github.com/fdietze/chromogene already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] error: the lock file /workspace/builds/worker-13/source/Cargo.lock needs to be updated but --locked was passed to prevent this [INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag. [INFO] the lockfile is outdated, regenerating it [INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] [stderr] Updating git repository `git://github.com/BurntSushi/rust-stats` [INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "MAP_USER_ID=0" "-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" "+1.44.0" "build" "--frozen"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 643c0df144570883ef1c95ae70fa2c3f8a823df9fe0b2a0e35a19a7bd88b14e9 [INFO] running `"docker" "start" "-a" "643c0df144570883ef1c95ae70fa2c3f8a823df9fe0b2a0e35a19a7bd88b14e9"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling streaming-stats v0.2.3 (git://github.com/BurntSushi/rust-stats#aaa17b69) [INFO] [stderr] Compiling phf_generator v0.7.24 [INFO] [stderr] Compiling phf_codegen v0.7.24 [INFO] [stderr] Compiling palette v0.2.1 [INFO] [stderr] Compiling chromogene v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stderr] --> src/main.rs:3:1 [INFO] [stderr] | [INFO] [stderr] 3 | #![feature(iter_arith)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stderr] --> src/main.rs:4:1 [INFO] [stderr] | [INFO] [stderr] 4 | #![feature(slice_patterns)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> src/main.rs:54:21 [INFO] [stderr] | [INFO] [stderr] 54 | let direction = try!(line.next().ok_or("expected string").and_then(|string| { [INFO] [stderr] | ^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(deprecated)]` on by default [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> src/main.rs:69:16 [INFO] [stderr] | [INFO] [stderr] 69 | let stat = try!(line.next().ok_or("expected string").and_then(|string| { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> src/main.rs:79:21 [INFO] [stderr] | [INFO] [stderr] 79 | let parameter = try!(line.next().ok_or("expected string").and_then(|string| { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: unused `#[macro_use]` import [INFO] [stderr] --> src/main.rs:8:1 [INFO] [stderr] | [INFO] [stderr] 8 | #[macro_use] [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused imports: `Lch`, `Rgb` [INFO] [stderr] --> src/main.rs:12:20 [INFO] [stderr] | [INFO] [stderr] 12 | use palette::{Lab, Lch, Rgb}; [INFO] [stderr] | ^^^ ^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `palette::Limited` [INFO] [stderr] --> src/main.rs:14:5 [INFO] [stderr] | [INFO] [stderr] 14 | use palette::Limited; [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused imports: `Rand`, `Rng` [INFO] [stderr] --> src/main.rs:17:24 [INFO] [stderr] | [INFO] [stderr] 17 | use rand::{thread_rng, Rng, Rand}; [INFO] [stderr] | ^^^ ^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused imports: `IndependentSample`, `Normal` [INFO] [stderr] --> src/main.rs:18:27 [INFO] [stderr] | [INFO] [stderr] 18 | use rand::distributions::{Normal, IndependentSample}; [INFO] [stderr] | ^^^^^^ ^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `rand::distributions::exponential::Exp1` [INFO] [stderr] --> src/main.rs:19:5 [INFO] [stderr] | [INFO] [stderr] 19 | use rand::distributions::exponential::Exp1; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused imports: `mean`, `stddev` [INFO] [stderr] --> src/main.rs:21:13 [INFO] [stderr] | [INFO] [stderr] 21 | use stats::{stddev, mean}; [INFO] [stderr] | ^^^^^^ ^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `Lch` [INFO] [stderr] --> src/fitness.rs:1:20 [INFO] [stderr] | [INFO] [stderr] 1 | use palette::{Lab, Lch}; [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: unused imports: `FitnessData`, `StatValues` [INFO] [stderr] --> src/main.rs:25:46 [INFO] [stderr] | [INFO] [stderr] 25 | use fitness::{ColorSchemeProblemDescription, FitnessData, StatValues}; [INFO] [stderr] | ^^^^^^^^^^^ ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `rand::distributions::IndependentSample` [INFO] [stderr] --> src/genetic.rs:3:5 [INFO] [stderr] | [INFO] [stderr] 3 | use rand::distributions::IndependentSample; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `ProblemDescription` [INFO] [stderr] --> src/main.rs:32:37 [INFO] [stderr] | [INFO] [stderr] 32 | use genetic::{Population, Genotype, ProblemDescription}; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::ops::Add` [INFO] [stderr] --> src/main.rs:13:5 [INFO] [stderr] | [INFO] [stderr] 13 | use std::ops::Add; [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `Rand` [INFO] [stderr] --> src/genetic.rs:1:17 [INFO] [stderr] | [INFO] [stderr] 1 | use rand::{Rng, Rand}; [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] error: aborting due to 2 previous errors; 16 warnings emitted [INFO] [stderr] [INFO] [stderr] For more information about this error, try `rustc --explain E0554`. [INFO] [stderr] error: could not compile `chromogene`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `"docker" "inspect" "643c0df144570883ef1c95ae70fa2c3f8a823df9fe0b2a0e35a19a7bd88b14e9"` [INFO] running `"docker" "rm" "-f" "643c0df144570883ef1c95ae70fa2c3f8a823df9fe0b2a0e35a19a7bd88b14e9"` [INFO] [stdout] 643c0df144570883ef1c95ae70fa2c3f8a823df9fe0b2a0e35a19a7bd88b14e9