[INFO] updating cached repository https://github.com/sifton/gbers
[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] 3a94b798299f625a7e94cb8cae3cb2f114735d7b
[INFO] testing sifton/gbers against 1.44.0 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsifton%2Fgbers" "/workspace/builds/worker-5/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sifton/gbers 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/sifton/gbers
[INFO] finished tweaking git repo https://github.com/sifton/gbers
[INFO] tweaked toml for git repo https://github.com/sifton/gbers written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/sifton/gbers 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] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] e5f3ddcce0053eea503d136eb2fb27401f4d18eaca6319086f32de04e8a2334a
[INFO] running `"docker" "start" "-a" "e5f3ddcce0053eea503d136eb2fb27401f4d18eaca6319086f32de04e8a2334a"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling byte-slice-cast v0.1.0
[INFO] [stderr]    Compiling bitflags v1.0.1
[INFO] [stderr]    Compiling gbers v0.0.1 (/opt/rustwide/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(try_from)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/hw/cart.rs:155:13
[INFO] [stderr]     |
[INFO] [stderr] 155 |     let x = try!(Cartridge::new_no_check(bytes));
[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/hw/cart.rs:157:13
[INFO] [stderr]     |
[INFO] [stderr] 157 |     let _ = try!(check_header_sum(&x.rom));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/hw/cart.rs:163:15
[INFO] [stderr]     |
[INFO] [stderr] 163 |     let rom = try!(ROM::from_raw_bytes(bytes));
[INFO] [stderr]     |               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/hw/cart.rs:165:17
[INFO] [stderr]     |
[INFO] [stderr] 165 |     let title = try!(read_title(&rom));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/hw/cart.rs:166:22
[INFO] [stderr]     |
[INFO] [stderr] 166 |     let components = try!(decode_components(&rom));
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/hw/cart.rs:167:18
[INFO] [stderr]     |
[INFO] [stderr] 167 |     let is_cgb = try!(decode_is_cgb(&rom));
[INFO] [stderr]     |                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/hw/cart.rs:168:18
[INFO] [stderr]     |
[INFO] [stderr] 168 |     let is_sgb = try!(decode_is_sgb(&rom));
[INFO] [stderr]     |                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/hw/cart.rs:365:17
[INFO] [stderr]     |
[INFO] [stderr] 365 |   let _romnum = try!(decode_rom_size(rom));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/hw/cart.rs:366:17
[INFO] [stderr]     |
[INFO] [stderr] 366 |   let _ramnum = try!(decode_ram_size(rom));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::marker::PhantomData`
[INFO] [stderr]   --> src/hw/cart.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 | use std::marker::PhantomData;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `TryInto`
[INFO] [stderr]   --> src/hw/cpu/instr.rs:28:35
[INFO] [stderr]    |
[INFO] [stderr] 28 | use std::convert::{Into, TryFrom, TryInto};
[INFO] [stderr]    |                                   ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]   --> src/hw/cpu/register.rs:46:5
[INFO] [stderr]    |
[INFO] [stderr] 46 |     ((self.upper.get() << 8 + self.lower.get()) as u16)
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::cart`
[INFO] [stderr]   --> src/hw/cpu/mod.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 | use super::cart;
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error; 13 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: could not compile `gbers`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "e5f3ddcce0053eea503d136eb2fb27401f4d18eaca6319086f32de04e8a2334a"`
[INFO] running `"docker" "rm" "-f" "e5f3ddcce0053eea503d136eb2fb27401f4d18eaca6319086f32de04e8a2334a"`
[INFO] [stdout] e5f3ddcce0053eea503d136eb2fb27401f4d18eaca6319086f32de04e8a2334a