[INFO] fetching crate moonalloy 0.2.0...
[INFO] testing moonalloy-0.2.0 against beta-2022-02-22 for beta-1.60-1
[INFO] extracting crate moonalloy 0.2.0 into /workspace/builds/worker-19/source
[INFO] validating manifest of crates.io crate moonalloy 0.2.0 on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate moonalloy 0.2.0
[INFO] finished tweaking crates.io crate moonalloy 0.2.0
[INFO] tweaked toml for crates.io crate moonalloy 0.2.0 written to /workspace/builds/worker-19/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 92965ec9d6eea37c4e78aa922948923e6b15ccd0f497c428580a1d720ceacbe0
[INFO] running `Command { std: "docker" "start" "-a" "92965ec9d6eea37c4e78aa922948923e6b15ccd0f497c428580a1d720ceacbe0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "92965ec9d6eea37c4e78aa922948923e6b15ccd0f497c428580a1d720ceacbe0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92965ec9d6eea37c4e78aa922948923e6b15ccd0f497c428580a1d720ceacbe0", kill_on_drop: false }`
[INFO] [stdout] 92965ec9d6eea37c4e78aa922948923e6b15ccd0f497c428580a1d720ceacbe0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 90df17bffd080560ed3e922037ed407d719dca3fc6781fc1df3ff238b358ce62
[INFO] running `Command { std: "docker" "start" "-a" "90df17bffd080560ed3e922037ed407d719dca3fc6781fc1df3ff238b358ce62", kill_on_drop: false }`
[INFO] [stderr]    Compiling moonalloy v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.08s
[INFO] running `Command { std: "docker" "inspect" "90df17bffd080560ed3e922037ed407d719dca3fc6781fc1df3ff238b358ce62", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "90df17bffd080560ed3e922037ed407d719dca3fc6781fc1df3ff238b358ce62", kill_on_drop: false }`
[INFO] [stdout] 90df17bffd080560ed3e922037ed407d719dca3fc6781fc1df3ff238b358ce62
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 996533eb18e3235ec7ca339fd9440ca39e1a7eaf78abc4657c869ffa80332356
[INFO] running `Command { std: "docker" "start" "-a" "996533eb18e3235ec7ca339fd9440ca39e1a7eaf78abc4657c869ffa80332356", kill_on_drop: false }`
[INFO] [stderr]    Compiling moonalloy v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0596]: cannot borrow `a` as mutable, as it is not declared as mutable
[INFO] [stdout]    --> src/linalg/array.rs:729:9
[INFO] [stdout]     |
[INFO] [stdout] 726 |         let a = Array::from(&mut [1.0, 2.0, 3.0]);
[INFO] [stdout]     |             - help: consider changing this to be mutable: `mut a`
[INFO] [stdout] ...
[INFO] [stdout] 729 |         a.set(5.0, 0);
[INFO] [stdout]     |         ^^^^^^^^^^^^^ cannot borrow as mutable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0596]: cannot borrow `a` as mutable, as it is not declared as mutable
[INFO] [stdout]    --> src/linalg/matrix.rs:810:9
[INFO] [stdout]     |
[INFO] [stdout] 807 |         let a = Matrix::new(&mut [Array::from(&mut [1.0, 2.0]), Array::from(&mut [3.0, 4.0])]);
[INFO] [stdout]     |             - help: consider changing this to be mutable: `mut a`
[INFO] [stdout] ...
[INFO] [stdout] 810 |         a.set(8.0, 1, 1);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^ cannot borrow as mutable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `moonalloy` due to 3 previous errors
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] For more information about this error, try `rustc --explain E0596`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "996533eb18e3235ec7ca339fd9440ca39e1a7eaf78abc4657c869ffa80332356", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "996533eb18e3235ec7ca339fd9440ca39e1a7eaf78abc4657c869ffa80332356", kill_on_drop: false }`
[INFO] [stdout] 996533eb18e3235ec7ca339fd9440ca39e1a7eaf78abc4657c869ffa80332356