[INFO] fetching crate pprzlink 0.3.1...
[INFO] testing pprzlink-0.3.1 against 1.54.0 for beta-1.55-1
[INFO] extracting crate pprzlink 0.3.1 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate pprzlink 0.3.1 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate pprzlink 0.3.1
[INFO] finished tweaking crates.io crate pprzlink 0.3.1
[INFO] tweaked toml for crates.io crate pprzlink 0.3.1 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "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-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 67ad2ea5af788da7e9e75ab182f292098901c7de4ecf53cd0245e4ae9e9b7ae2
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "67ad2ea5af788da7e9e75ab182f292098901c7de4ecf53cd0245e4ae9e9b7ae2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "67ad2ea5af788da7e9e75ab182f292098901c7de4ecf53cd0245e4ae9e9b7ae2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "67ad2ea5af788da7e9e75ab182f292098901c7de4ecf53cd0245e4ae9e9b7ae2", kill_on_drop: false }`
[INFO] [stdout] 67ad2ea5af788da7e9e75ab182f292098901c7de4ecf53cd0245e4ae9e9b7ae2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d998fc7e050a3e5386dbfe69ff45aabdaaacb23a237793abc1f31aae4f097a4b
[INFO] running `Command { std: "docker" "start" "-a" "d998fc7e050a3e5386dbfe69ff45aabdaaacb23a237793abc1f31aae4f097a4b", kill_on_drop: false }`
[INFO] [stderr]    Compiling ivyrust v0.1.1
[INFO] [stderr]    Compiling xml-rs v0.6.1
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ivyrust-0.1.1/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(libc)]
[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]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ivyrust-0.1.1/src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | 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]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ivyrust-0.1.1/src/lib.rs:4:19
[INFO] [stdout]   |
[INFO] [stdout] 4 | use libc::{c_void,c_char};
[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]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ivyrust-0.1.1/src/lib.rs:155:104
[INFO] [stdout]     |
[INFO] [stdout] 155 | extern "C" fn apply_closure(_app: IvyClientPtr, user_data: *mut c_void, argc: i32, argv: *const *const c_char) {
[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]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ivyrust-0.1.1/src/lib.rs:34:30
[INFO] [stdout]    |
[INFO] [stdout] 34 |     fn IvyInit(app_name: *const c_char, ready_msg: *const c_char, callback: *const c_void, app_data: *const c_void, die_callback: *const ...
[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]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ivyrust-0.1.1/src/lib.rs:34:56
[INFO] [stdout]    |
[INFO] [stdout] 34 |     fn IvyInit(app_name: *const c_char, ready_msg: *const c_char, callback: *const c_void, app_data: *const c_void, die_callback: *const ...
[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]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ivyrust-0.1.1/src/lib.rs:35:31
[INFO] [stdout]    |
[INFO] [stdout] 35 |     fn IvyStart(bus_addr: *const c_char);
[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]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ivyrust-0.1.1/src/lib.rs:38:36
[INFO] [stdout]    |
[INFO] [stdout] 38 |     fn IvySendMsg(fmt_message: *const c_char, ...);
[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]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ivyrust-0.1.1/src/lib.rs:39:110
[INFO] [stdout]    |
[INFO] [stdout] 39 |     fn IvyBindMsg(callback: extern fn(app: IvyClientPtr, user_data: *mut c_void, argc: i32, argv: *const *const c_char),
[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]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ivyrust-0.1.1/src/lib.rs:40:49
[INFO] [stdout]    |
[INFO] [stdout] 40 |                         user_data: *const c_void, regexpr: *const c_char, ...) -> MsgRcvPtr;
[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]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ivyrust-0.1.1/src/lib.rs:42:53
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn IvyChangeMsg (msg: MsgRcvPtr, fmt_regex: *const c_char, ... ) -> MsgRcvPtr;
[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 11 previous errors
[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 `ivyrust`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "d998fc7e050a3e5386dbfe69ff45aabdaaacb23a237793abc1f31aae4f097a4b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d998fc7e050a3e5386dbfe69ff45aabdaaacb23a237793abc1f31aae4f097a4b", kill_on_drop: false }`
[INFO] [stdout] d998fc7e050a3e5386dbfe69ff45aabdaaacb23a237793abc1f31aae4f097a4b
