[INFO] updating cached repository https://github.com/lgo/rails
[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] bfc3a960f22cf6af7e92562886fee49c5fd64721
[INFO] testing lgo/rails against 1.44.0 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flgo%2Frails" "/workspace/builds/worker-12/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lgo/rails 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/lgo/rails
[INFO] finished tweaking git repo https://github.com/lgo/rails
[INFO] tweaked toml for git repo https://github.com/lgo/rails written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/lgo/rails 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] [stderr] warning: unused manifest key: target.rpi2.features
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] [stdout] de4a87ad61934061efafa091e41b1b6549efb5527e1165b218f230c01da89427
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "de4a87ad61934061efafa091e41b1b6549efb5527e1165b218f230c01da89427"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: unused manifest key: target.rpi2.features
[INFO] [stderr]    Compiling rails v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stderr]  --> src/lib.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(lang_items)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]  --> src/mach/rpi2/uart.rs:8:24
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub const GPPUD: u32 = (GPIO_BASE + 0x94);
[INFO] [stderr]   |                        ^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]   --> src/mach/rpi2/uart.rs:11:28
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub const GPPUDCLK0: u32 = (GPIO_BASE + 0x98);
[INFO] [stderr]    |                            ^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]   --> src/mach/rpi2/uart.rs:18:27
[INFO] [stderr]    |
[INFO] [stderr] 18 | pub const UART0_DR: u32 = (UART0_BASE + 0x00);
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]   --> src/mach/rpi2/uart.rs:20:31
[INFO] [stderr]    |
[INFO] [stderr] 20 | pub const UART0_RSRECR: u32 = (UART0_BASE + 0x04);
[INFO] [stderr]    |                               ^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]   --> src/mach/rpi2/uart.rs:22:27
[INFO] [stderr]    |
[INFO] [stderr] 22 | pub const UART0_FR: u32 = (UART0_BASE + 0x18);
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]   --> src/mach/rpi2/uart.rs:24:29
[INFO] [stderr]    |
[INFO] [stderr] 24 | pub const UART0_ILPR: u32 = (UART0_BASE + 0x20);
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]   --> src/mach/rpi2/uart.rs:25:29
[INFO] [stderr]    |
[INFO] [stderr] 25 | pub const UART0_IBRD: u32 = (UART0_BASE + 0x24);
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]   --> src/mach/rpi2/uart.rs:26:29
[INFO] [stderr]    |
[INFO] [stderr] 26 | pub const UART0_FBRD: u32 = (UART0_BASE + 0x28);
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]   --> src/mach/rpi2/uart.rs:27:29
[INFO] [stderr]    |
[INFO] [stderr] 27 | pub const UART0_LCRH: u32 = (UART0_BASE + 0x2C);
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]   --> src/mach/rpi2/uart.rs:28:27
[INFO] [stderr]    |
[INFO] [stderr] 28 | pub const UART0_CR: u32 = (UART0_BASE + 0x30);
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]   --> src/mach/rpi2/uart.rs:30:29
[INFO] [stderr]    |
[INFO] [stderr] 30 | pub const UART0_IFLS: u32 = (UART0_BASE + 0x34);
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]   --> src/mach/rpi2/uart.rs:31:29
[INFO] [stderr]    |
[INFO] [stderr] 31 | pub const UART0_IMSC: u32 = (UART0_BASE + 0x38);
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]   --> src/mach/rpi2/uart.rs:33:28
[INFO] [stderr]    |
[INFO] [stderr] 33 | pub const UART0_RIS: u32 = (UART0_BASE + 0x3C);
[INFO] [stderr]    |                            ^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]   --> src/mach/rpi2/uart.rs:35:28
[INFO] [stderr]    |
[INFO] [stderr] 35 | pub const UART0_MIS: u32 = (UART0_BASE + 0x40);
[INFO] [stderr]    |                            ^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]   --> src/mach/rpi2/uart.rs:36:28
[INFO] [stderr]    |
[INFO] [stderr] 36 | pub const UART0_ICR: u32 = (UART0_BASE + 0x44);
[INFO] [stderr]    |                            ^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]   --> src/mach/rpi2/uart.rs:38:30
[INFO] [stderr]    |
[INFO] [stderr] 38 | pub const UART0_DMACR: u32 = (UART0_BASE + 0x48);
[INFO] [stderr]    |                              ^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]   --> src/mach/rpi2/uart.rs:40:29
[INFO] [stderr]    |
[INFO] [stderr] 40 | pub const UART0_ITCR: u32 = (UART0_BASE + 0x80);
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]   --> src/mach/rpi2/uart.rs:42:29
[INFO] [stderr]    |
[INFO] [stderr] 42 | pub const UART0_ITIP: u32 = (UART0_BASE + 0x84);
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]   --> src/mach/rpi2/uart.rs:44:29
[INFO] [stderr]    |
[INFO] [stderr] 44 | pub const UART0_ITOP: u32 = (UART0_BASE + 0x88);
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]   --> src/mach/rpi2/uart.rs:46:28
[INFO] [stderr]    |
[INFO] [stderr] 46 | pub const UART0_TDR: u32 = (UART0_BASE + 0x8C);
[INFO] [stderr]    |                            ^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/kernel/task_descriptor.rs:6:15
[INFO] [stderr]   |
[INFO] [stderr] 6 |   entrypoint: Fn(),
[INFO] [stderr]   |               ^^^^ help: use `dyn`: `dyn Fn()`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error[E0522]: definition of an unknown language item: `eh_unwind_resume`
[INFO] [stderr]  --> src/util/builtins.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | #[lang = "eh_unwind_resume"]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ definition of unknown language item `eh_unwind_resume`
[INFO] [stderr] 
[INFO] [stderr] error[E0106]: missing lifetime specifier
[INFO] [stderr]  --> src/kernel/scheduler.rs:6:16
[INFO] [stderr]   |
[INFO] [stderr] 6 |   next: Option<&Node<T>>,
[INFO] [stderr]   |                ^ expected named lifetime parameter
[INFO] [stderr]   |
[INFO] [stderr] help: consider introducing a named lifetime parameter
[INFO] [stderr]   |
[INFO] [stderr] 5 | struct Node<'a, T> {
[INFO] [stderr] 6 |   next: Option<&'a Node<T>>,
[INFO] [stderr]   |
[INFO] [stderr] 
[INFO] [stderr] error[E0106]: missing lifetime specifier
[INFO] [stderr]  --> src/kernel/scheduler.rs:7:16
[INFO] [stderr]   |
[INFO] [stderr] 7 |   prev: Option<&Node<T>>,
[INFO] [stderr]   |                ^ expected named lifetime parameter
[INFO] [stderr]   |
[INFO] [stderr] help: consider introducing a named lifetime parameter
[INFO] [stderr]   |
[INFO] [stderr] 5 | struct Node<'a, T> {
[INFO] [stderr] 6 |   next: Option<&Node<T>>,
[INFO] [stderr] 7 |   prev: Option<&'a Node<T>>,
[INFO] [stderr]   |
[INFO] [stderr] 
[INFO] [stderr] error[E0106]: missing lifetime specifier
[INFO] [stderr]   --> src/kernel/scheduler.rs:12:14
[INFO] [stderr]    |
[INFO] [stderr] 12 |   next: Node<&TaskDescriptor>,
[INFO] [stderr]    |              ^ expected named lifetime parameter
[INFO] [stderr]    |
[INFO] [stderr] help: consider introducing a named lifetime parameter
[INFO] [stderr]    |
[INFO] [stderr] 11 | struct Priority<'a> {
[INFO] [stderr] 12 |   next: Node<&'a TaskDescriptor>,
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] error[E0124]: field `priorities_ready` is already declared
[INFO] [stderr]   --> src/kernel/scheduler.rs:17:3
[INFO] [stderr]    |
[INFO] [stderr] 16 |   priorities_ready: [bool; 32],
[INFO] [stderr]    |   ---------------------------- `priorities_ready` first declared here
[INFO] [stderr] 17 |   priorities_ready: [bool; 32],
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ field already declared
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 6 previous errors; 21 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0106, E0124, E0522, E0554.
[INFO] [stderr] For more information about an error, try `rustc --explain E0106`.
[INFO] [stderr] error: could not compile `rails`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "de4a87ad61934061efafa091e41b1b6549efb5527e1165b218f230c01da89427"`
[INFO] running `"docker" "rm" "-f" "de4a87ad61934061efafa091e41b1b6549efb5527e1165b218f230c01da89427"`
[INFO] [stdout] de4a87ad61934061efafa091e41b1b6549efb5527e1165b218f230c01da89427