[INFO] updating cached repository JinShil/rust_arm_cortex-m_semihosted_hello_world
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/JinShil/rust_arm_cortex-m_semihosted_hello_world
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/JinShil/rust_arm_cortex-m_semihosted_hello_world" "work/ex/beta-1.38-1/sources/1.37.0/gh/JinShil/rust_arm_cortex-m_semihosted_hello_world"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/JinShil/rust_arm_cortex-m_semihosted_hello_world'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/JinShil/rust_arm_cortex-m_semihosted_hello_world" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/JinShil/rust_arm_cortex-m_semihosted_hello_world"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/JinShil/rust_arm_cortex-m_semihosted_hello_world'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] bf92d41cb871be0fc8f7bfc7d05d3bbc83f40fc6
[INFO] sha for GitHub repo JinShil/rust_arm_cortex-m_semihosted_hello_world: bf92d41cb871be0fc8f7bfc7d05d3bbc83f40fc6
[INFO] validating manifest of JinShil/rust_arm_cortex-m_semihosted_hello_world on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of JinShil/rust_arm_cortex-m_semihosted_hello_world on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing JinShil/rust_arm_cortex-m_semihosted_hello_world
[INFO] finished frobbing JinShil/rust_arm_cortex-m_semihosted_hello_world
[INFO] frobbed toml for JinShil/rust_arm_cortex-m_semihosted_hello_world written to work/ex/beta-1.38-1/sources/1.37.0/gh/JinShil/rust_arm_cortex-m_semihosted_hello_world/Cargo.toml
[INFO] started frobbing JinShil/rust_arm_cortex-m_semihosted_hello_world
[INFO] finished frobbing JinShil/rust_arm_cortex-m_semihosted_hello_world
[INFO] frobbed toml for JinShil/rust_arm_cortex-m_semihosted_hello_world written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/JinShil/rust_arm_cortex-m_semihosted_hello_world/Cargo.toml
[INFO] crate JinShil/rust_arm_cortex-m_semihosted_hello_world already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing JinShil/rust_arm_cortex-m_semihosted_hello_world against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/JinShil/rust_arm_cortex-m_semihosted_hello_world:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] f2e29dd45b2c513fca321cc76a8c7f83afc16a5f2bbd3d540c07a18c837458f8
[INFO] running `"docker" "start" "-a" "f2e29dd45b2c513fca321cc76a8c7f83afc16a5f2bbd3d540c07a18c837458f8"`
[INFO] [stderr]    Compiling rust_arm_cortex-m_semihosted_hello_world v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]   --> src/main.rs:18:1
[INFO] [stderr]    |
[INFO] [stderr] 18 | #![feature(no_core)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]   --> src/main.rs:19:1
[INFO] [stderr]    |
[INFO] [stderr] 19 | #![feature(lang_items)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]   --> src/main.rs:20:1
[INFO] [stderr]    |
[INFO] [stderr] 20 | #![feature(asm)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]   --> src/main.rs:21:1
[INFO] [stderr]    |
[INFO] [stderr] 21 | #![feature(intrinsics)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]   --> src/main.rs:22:1
[INFO] [stderr]    |
[INFO] [stderr] 22 | #![feature(linkage)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: requires `freeze` lang_item
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: `&Self` cannot be used as the type of `self` without the `arbitrary_self_types` feature
[INFO] [stderr]   --> src/main.rs:59:17
[INFO] [stderr]    |
[INFO] [stderr] 59 |     fn as_bytes(&self) -> &[u8];
[INFO] [stderr]    |                 ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: for more information, see https://github.com/rust-lang/rust/issues/44874
[INFO] [stderr]    = help: consider changing to `self`, `&self`, `&mut self`, or `self: Box<Self>`
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: `&Self` cannot be used as the type of `self` without the `arbitrary_self_types` feature
[INFO] [stderr]   --> src/main.rs:60:15
[INFO] [stderr]    |
[INFO] [stderr] 60 |     fn as_ptr(&self) -> *const u8;
[INFO] [stderr]    |               ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: for more information, see https://github.com/rust-lang/rust/issues/44874
[INFO] [stderr]    = help: consider changing to `self`, `&self`, `&mut self`, or `self: Box<Self>`
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: `&Self` cannot be used as the type of `self` without the `arbitrary_self_types` feature
[INFO] [stderr]   --> src/main.rs:61:12
[INFO] [stderr]    |
[INFO] [stderr] 61 |     fn len(&self) -> usize;
[INFO] [stderr]    |            ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: for more information, see https://github.com/rust-lang/rust/issues/44874
[INFO] [stderr]    = help: consider changing to `self`, `&self`, `&mut self`, or `self: Box<Self>`
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: `&str` cannot be used as the type of `self` without the `arbitrary_self_types` feature
[INFO] [stderr]   --> src/main.rs:66:15
[INFO] [stderr]    |
[INFO] [stderr] 66 |     fn as_ptr(&self) -> *const u8 {
[INFO] [stderr]    |               ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: for more information, see https://github.com/rust-lang/rust/issues/44874
[INFO] [stderr]    = help: consider changing to `self`, `&self`, `&mut self`, or `self: Box<Self>`
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: `&str` cannot be used as the type of `self` without the `arbitrary_self_types` feature
[INFO] [stderr]   --> src/main.rs:71:17
[INFO] [stderr]    |
[INFO] [stderr] 71 |     fn as_bytes(&self) -> &[u8] {
[INFO] [stderr]    |                 ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: for more information, see https://github.com/rust-lang/rust/issues/44874
[INFO] [stderr]    = help: consider changing to `self`, `&self`, `&mut self`, or `self: Box<Self>`
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: `&str` cannot be used as the type of `self` without the `arbitrary_self_types` feature
[INFO] [stderr]   --> src/main.rs:75:12
[INFO] [stderr]    |
[INFO] [stderr] 75 |     fn len(&self) -> usize {
[INFO] [stderr]    |            ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: for more information, see https://github.com/rust-lang/rust/issues/44874
[INFO] [stderr]    = help: consider changing to `self`, `&self`, `&mut self`, or `self: Box<Self>`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 12 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0554, E0658.
[INFO] [stderr] For more information about an error, try `rustc --explain E0554`.
[INFO] [stderr] error: Could not compile `rust_arm_cortex-m_semihosted_hello_world`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "f2e29dd45b2c513fca321cc76a8c7f83afc16a5f2bbd3d540c07a18c837458f8"`
[INFO] running `"docker" "rm" "-f" "f2e29dd45b2c513fca321cc76a8c7f83afc16a5f2bbd3d540c07a18c837458f8"`
[INFO] [stdout] f2e29dd45b2c513fca321cc76a8c7f83afc16a5f2bbd3d540c07a18c837458f8