[INFO] cloning repository https://github.com/zesterer/fuckvm
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/zesterer/fuckvm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzesterer%2Ffuckvm", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzesterer%2Ffuckvm'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cf2751673cba6fe0eba6495ce0585958097add51
[INFO] checking zesterer/fuckvm against try#9543f8ea2aae74b8f13ac2a6e6c0ecdca9810869 for pr-129249
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzesterer%2Ffuckvm" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/zesterer/fuckvm on toolchain 9543f8ea2aae74b8f13ac2a6e6c0ecdca9810869
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9543f8ea2aae74b8f13ac2a6e6c0ecdca9810869" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/zesterer/fuckvm
[INFO] finished tweaking git repo https://github.com/zesterer/fuckvm
[INFO] tweaked toml for git repo https://github.com/zesterer/fuckvm written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/zesterer/fuckvm already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9543f8ea2aae74b8f13ac2a6e6c0ecdca9810869" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+9543f8ea2aae74b8f13ac2a6e6c0ecdca9810869" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 247bfaf1a11ec97b80cd3c4bffe75c46a2740c4c1c16e6a7d3f7723c04219ea0
[INFO] running `Command { std: "docker" "start" "-a" "247bfaf1a11ec97b80cd3c4bffe75c46a2740c4c1c16e6a7d3f7723c04219ea0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "247bfaf1a11ec97b80cd3c4bffe75c46a2740c4c1c16e6a7d3f7723c04219ea0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "247bfaf1a11ec97b80cd3c4bffe75c46a2740c4c1c16e6a7d3f7723c04219ea0", kill_on_drop: false }`
[INFO] [stdout] 247bfaf1a11ec97b80cd3c4bffe75c46a2740c4c1c16e6a7d3f7723c04219ea0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+9543f8ea2aae74b8f13ac2a6e6c0ecdca9810869" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d3fe480d2982a63dd1c4f4158dd5787acf6042b68b74789c14a75f57cfdbdaa7
[INFO] running `Command { std: "docker" "start" "-a" "d3fe480d2982a63dd1c4f4158dd5787acf6042b68b74789c14a75f57cfdbdaa7", kill_on_drop: false }`
[INFO] [stderr]     Checking fuckvm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/bf/bfir.rs:113:17
[INFO] [stdout]     |
[INFO] [stdout] 113 |                 _ => unimplemented!(),
[INFO] [stdout]     |                 ^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]    --> src/bf/bfir.rs:113:17
[INFO] [stdout]     |
[INFO] [stdout] 107 |                 lir::Branch::Exit => instrs.push(Instr::Exit),
[INFO] [stdout]     |                 ----------------- matches some of the same values
[INFO] [stdout] 108 |                 lir::Branch::Goto(id) => instrs.push(Instr::Goto(id)),
[INFO] [stdout]     |                 --------------------- matches some of the same values
[INFO] [stdout] 109 |                 lir::Branch::If(pred, if_true, if_false) =>
[INFO] [stdout]     |                 ---------------------------------------- matches some of the same values
[INFO] [stdout] 110 |                     instrs.push(Instr::If(pred, if_true, if_false)),
[INFO] [stdout] 111 |                 lir::Branch::Return(stack_size) =>
[INFO] [stdout]     |                 ------------------------------- matches some of the same values
[INFO] [stdout] 112 |                     instrs.push(Instr::Return),
[INFO] [stdout] 113 |                 _ => unimplemented!(),
[INFO] [stdout]     |                 ^ collectively making this unreachable
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/bf/bfir.rs:113:17
[INFO] [stdout]     |
[INFO] [stdout] 113 |                 _ => unimplemented!(),
[INFO] [stdout]     |                 ^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]    --> src/bf/bfir.rs:113:17
[INFO] [stdout]     |
[INFO] [stdout] 107 |                 lir::Branch::Exit => instrs.push(Instr::Exit),
[INFO] [stdout]     |                 ----------------- matches some of the same values
[INFO] [stdout] 108 |                 lir::Branch::Goto(id) => instrs.push(Instr::Goto(id)),
[INFO] [stdout]     |                 --------------------- matches some of the same values
[INFO] [stdout] 109 |                 lir::Branch::If(pred, if_true, if_false) =>
[INFO] [stdout]     |                 ---------------------------------------- matches some of the same values
[INFO] [stdout] 110 |                     instrs.push(Instr::If(pred, if_true, if_false)),
[INFO] [stdout] 111 |                 lir::Branch::Return(stack_size) =>
[INFO] [stdout]     |                 ------------------------------- matches some of the same values
[INFO] [stdout] 112 |                     instrs.push(Instr::Return),
[INFO] [stdout] 113 |                 _ => unimplemented!(),
[INFO] [stdout]     |                 ^ collectively making this unreachable
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `stack_size`
[INFO] [stdout]    --> src/bf/bfir.rs:111:37
[INFO] [stdout]     |
[INFO] [stdout] 111 |                 lir::Branch::Return(stack_size) =>
[INFO] [stdout]     |                                     ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_stack_size`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/ir/lir.rs:165:21
[INFO] [stdout]     |
[INFO] [stdout] 165 |                     _ => unimplemented!(),
[INFO] [stdout]     |                     ^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]    --> src/ir/lir.rs:165:21
[INFO] [stdout]     |
[INFO] [stdout] 146 |                     hir::Branch::Goto(name) => {
[INFO] [stdout]     |                     ----------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 149 |                     hir::Branch::Exit => Branch::Exit,
[INFO] [stdout]     |                     ----------------- matches some of the same values
[INFO] [stdout] 150 |                     hir::Branch::ReturnVal(hir::Local(name, ty)) => {
[INFO] [stdout]     |                     -------------------------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 155 |                     hir::Branch::ReturnNone => {
[INFO] [stdout]     |                     ----------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 165 |                     _ => unimplemented!(),
[INFO] [stdout]     |                     ^ ...and 1 other patterns collectively make this unreachable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SCRATCH_3` is never used
[INFO] [stdout]    --> src/bf/bfir.rs:165:7
[INFO] [stdout]     |
[INFO] [stdout] 165 | const SCRATCH_3: usize = 9;
[INFO] [stdout]     |       ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `fuckvm` (lib test); 1 warning emitted
[INFO] [stdout] warning: function `sub_byte_zeroing` is never used
[INFO] [stdout]    --> src/bf/bfir.rs:189:4
[INFO] [stdout]     |
[INFO] [stdout] 189 | fn sub_byte_zeroing(from: usize, to: usize) -> String {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   No space left on device (os error 28)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to parse process output: `/opt/rustwide/rustup-home/toolchains/9543f8ea2aae74b8f13ac2a6e6c0ecdca9810869/bin/rustc --crate-name fuckvm --edition=2018 src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 --test --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values())' -C metadata=2eec397340a1eeb2 -C extra-filename=-bea6d2b90bd1c292 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --cap-lints=forbid` (exit status: 0)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `fuckvm` (lib); 5 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   No space left on device (os error 28)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to parse process output: `/opt/rustwide/rustup-home/toolchains/9543f8ea2aae74b8f13ac2a6e6c0ecdca9810869/bin/rustc --crate-name fuckvm --edition=2018 src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values())' -C metadata=f8ba14a999528de3 -C extra-filename=-4ead91d276baed3f --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --cap-lints=forbid` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "d3fe480d2982a63dd1c4f4158dd5787acf6042b68b74789c14a75f57cfdbdaa7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3fe480d2982a63dd1c4f4158dd5787acf6042b68b74789c14a75f57cfdbdaa7", kill_on_drop: false }`
[INFO] [stdout] d3fe480d2982a63dd1c4f4158dd5787acf6042b68b74789c14a75f57cfdbdaa7