[INFO] cloning repository https://github.com/disordinary/crdt
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/disordinary/crdt" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdisordinary%2Fcrdt", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdisordinary%2Fcrdt'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 28f080e40327a1a37b114bc817f1b4de70c4bdc4
[INFO] testing disordinary/crdt against beta-2022-02-22 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdisordinary%2Fcrdt" "/workspace/builds/worker-17/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-17/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/disordinary/crdt 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 git repo https://github.com/disordinary/crdt
[INFO] finished tweaking git repo https://github.com/disordinary/crdt
[INFO] tweaked toml for git repo https://github.com/disordinary/crdt written to /workspace/builds/worker-17/source/Cargo.toml
[INFO] crate git repo https://github.com/disordinary/crdt already has a lockfile, it will not be regenerated
[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-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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] 7b75b3048813d32c99f718c79762ed73fc981a9ad61d95ced59fae766489c350
[INFO] running `Command { std: "docker" "start" "-a" "7b75b3048813d32c99f718c79762ed73fc981a9ad61d95ced59fae766489c350", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7b75b3048813d32c99f718c79762ed73fc981a9ad61d95ced59fae766489c350", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b75b3048813d32c99f718c79762ed73fc981a9ad61d95ced59fae766489c350", kill_on_drop: false }`
[INFO] [stdout] 7b75b3048813d32c99f718c79762ed73fc981a9ad61d95ced59fae766489c350
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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] e9f9d4f7d181ec1c0850c82d1de151201128eb4bc034501d1c32c49d40979502
[INFO] running `Command { std: "docker" "start" "-a" "e9f9d4f7d181ec1c0850c82d1de151201128eb4bc034501d1c32c49d40979502", kill_on_drop: false }`
[INFO] [stderr]    Compiling labs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `c_void`, `free`, `size_t`
[INFO] [stdout]  --> src/crdt/mod.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | use libc::{c_void, size_t, malloc, free};
[INFO] [stdout]   |            ^^^^^^  ^^^^^^          ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Slice`
[INFO] [stdout]  --> src/text.rs:2:18
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crdt::{List, Slice};
[INFO] [stdout]   |                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'rustc_private': this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via `Cargo.toml` instead?
[INFO] [stdout]  --> src/main.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | extern crate libc;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #27812 <https://github.com/rust-lang/rust/issues/27812> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'rustc_private': this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via `Cargo.toml` instead?
[INFO] [stdout]  --> src/crdt/mod.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | extern crate libc;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #27812 <https://github.com/rust-lang/rust/issues/27812> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'rustc_private': this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via `Cargo.toml` instead?
[INFO] [stdout]  --> src/crdt/mod.rs:2:20
[INFO] [stdout]   |
[INFO] [stdout] 2 | use libc::{c_void, size_t, malloc, free};
[INFO] [stdout]   |                    ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #27812 <https://github.com/rust-lang/rust/issues/27812> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'rustc_private': this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via `Cargo.toml` instead?
[INFO] [stdout]  --> src/crdt/mod.rs:2:28
[INFO] [stdout]   |
[INFO] [stdout] 2 | use libc::{c_void, size_t, malloc, free};
[INFO] [stdout]   |                            ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #27812 <https://github.com/rust-lang/rust/issues/27812> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'rustc_private': this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via `Cargo.toml` instead?
[INFO] [stdout]  --> src/crdt/mod.rs:2:36
[INFO] [stdout]   |
[INFO] [stdout] 2 | use libc::{c_void, size_t, malloc, free};
[INFO] [stdout]   |                                    ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #27812 <https://github.com/rust-lang/rust/issues/27812> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'rustc_private': this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via `Cargo.toml` instead?
[INFO] [stdout]   --> src/crdt/mod.rs:29:28
[INFO] [stdout]    |
[INFO] [stdout] 29 |             let mut head = malloc(mem::size_of::<Node<T>>()) as *mut Node<T>;
[INFO] [stdout]    |                            ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #27812 <https://github.com/rust-lang/rust/issues/27812> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'rustc_private': this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via `Cargo.toml` instead?
[INFO] [stdout]   --> src/crdt/mod.rs:38:24
[INFO] [stdout]    |
[INFO] [stdout] 38 |             let node = malloc(mem::size_of::<Node<T>>()) as *mut Node<T>;
[INFO] [stdout]    |                        ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #27812 <https://github.com/rust-lang/rust/issues/27812> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 7 previous errors; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0658`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `labs` due to 8 previous errors; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "e9f9d4f7d181ec1c0850c82d1de151201128eb4bc034501d1c32c49d40979502", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9f9d4f7d181ec1c0850c82d1de151201128eb4bc034501d1c32c49d40979502", kill_on_drop: false }`
[INFO] [stdout] e9f9d4f7d181ec1c0850c82d1de151201128eb4bc034501d1c32c49d40979502