[INFO] cloning repository https://github.com/tarberd/playos
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tarberd/playos" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftarberd%2Fplayos", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftarberd%2Fplayos'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d4be91122e66c65d58b67f2eb03f1d2c25619c72
[INFO] checking tarberd/playos against try#b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f for pr-76104
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftarberd%2Fplayos" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tarberd/playos on toolchain b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-13/source/.cargo/config
[INFO] started tweaking git repo https://github.com/tarberd/playos
[INFO] finished tweaking git repo https://github.com/tarberd/playos
[INFO] tweaked toml for git repo https://github.com/tarberd/playos written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/tarberd/playos already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "fetch" "--locked" "--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-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 90060656fef914a2ca007c3999ed77558b6519bd95277bbbb2b97c55135ea05b
[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" "90060656fef914a2ca007c3999ed77558b6519bd95277bbbb2b97c55135ea05b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "90060656fef914a2ca007c3999ed77558b6519bd95277bbbb2b97c55135ea05b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "90060656fef914a2ca007c3999ed77558b6519bd95277bbbb2b97c55135ea05b", kill_on_drop: false }`
[INFO] [stdout] 90060656fef914a2ca007c3999ed77558b6519bd95277bbbb2b97c55135ea05b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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=forbid" "-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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 30c202a499ccf1d5b2ee9b4f1bcb94b6fd01ce044871cef3afe1a467d143a9fa
[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" "30c202a499ccf1d5b2ee9b4f1bcb94b6fd01ce044871cef3afe1a467d143a9fa", kill_on_drop: false }`
[INFO] [stderr]     Checking playos v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `core::ptr::null_mut`
[INFO] [stdout]  --> src/cpu.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use core::ptr::null_mut;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]  --> src/schedule.rs:1:22
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::process::{self, ProcessState, PROCESS_LIST};
[INFO] [stdout]   |                      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: language item required, but not found: `eh_personality`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::ptr::null_mut`
[INFO] [stdout]  --> src/cpu.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use core::ptr::null_mut;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]  --> src/schedule.rs:1:22
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::process::{self, ProcessState, PROCESS_LIST};
[INFO] [stdout]   |                      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: language item required, but not found: `eh_personality`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/trap.rs:76:17
[INFO] [stdout]    |
[INFO] [stdout] 68 | /                 panic!(
[INFO] [stdout] 69 | |                     "Illegal instruction CPU#{} -> 0x{:08x}: 0x{:08x}\n",
[INFO] [stdout] 70 | |                     hart, epc, tval
[INFO] [stdout] 71 | |                 );
[INFO] [stdout]    | |__________________- any code following this expression is unreachable
[INFO] [stdout] ...
[INFO] [stdout] 76 |                   loop {}
[INFO] [stdout]    |                   ^^^^^^^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]    --> src/trap.rs:101:17
[INFO] [stdout]     |
[INFO] [stdout] 100 |                 loop {}
[INFO] [stdout]     |                 ------- any code following this expression is unreachable
[INFO] [stdout] 101 |                 return_pc += 4;
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]    --> src/trap.rs:111:17
[INFO] [stdout]     |
[INFO] [stdout] 110 |                 loop {}
[INFO] [stdout]     |                 ------- any code following this expression is unreachable
[INFO] [stdout] 111 |                 return_pc += 4;
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]    --> src/trap.rs:121:17
[INFO] [stdout]     |
[INFO] [stdout] 120 |                 loop {}
[INFO] [stdout]     |                 ------- any code following this expression is unreachable
[INFO] [stdout] 121 |                 return_pc += 4;
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `playos`
[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] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/trap.rs:76:17
[INFO] [stdout]    |
[INFO] [stdout] 68 | /                 panic!(
[INFO] [stdout] 69 | |                     "Illegal instruction CPU#{} -> 0x{:08x}: 0x{:08x}\n",
[INFO] [stdout] 70 | |                     hart, epc, tval
[INFO] [stdout] 71 | |                 );
[INFO] [stdout]    | |__________________- any code following this expression is unreachable
[INFO] [stdout] ...
[INFO] [stdout] 76 |                   loop {}
[INFO] [stdout]    |                   ^^^^^^^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]    --> src/trap.rs:101:17
[INFO] [stdout]     |
[INFO] [stdout] 100 |                 loop {}
[INFO] [stdout]     |                 ------- any code following this expression is unreachable
[INFO] [stdout] 101 |                 return_pc += 4;
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]    --> src/trap.rs:111:17
[INFO] [stdout]     |
[INFO] [stdout] 110 |                 loop {}
[INFO] [stdout]     |                 ------- any code following this expression is unreachable
[INFO] [stdout] 111 |                 return_pc += 4;
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]    --> src/trap.rs:121:17
[INFO] [stdout]     |
[INFO] [stdout] 120 |                 loop {}
[INFO] [stdout]     |                 ------- any code following this expression is unreachable
[INFO] [stdout] 121 |                 return_pc += 4;
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "30c202a499ccf1d5b2ee9b4f1bcb94b6fd01ce044871cef3afe1a467d143a9fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "30c202a499ccf1d5b2ee9b4f1bcb94b6fd01ce044871cef3afe1a467d143a9fa", kill_on_drop: false }`
[INFO] [stdout] 30c202a499ccf1d5b2ee9b4f1bcb94b6fd01ce044871cef3afe1a467d143a9fa