[INFO] cloning repository https://github.com/anima-libera/xxbf
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/anima-libera/xxbf" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanima-libera%2Fxxbf", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanima-libera%2Fxxbf'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 10103728c0b9faf29132f5484a107ff2b8a288e0
[INFO] testing anima-libera/xxbf against beta-2022-02-22 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanima-libera%2Fxxbf" "/workspace/builds/worker-36/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-36/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/anima-libera/xxbf on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/anima-libera/xxbf
[INFO] finished tweaking git repo https://github.com/anima-libera/xxbf
[INFO] tweaked toml for git repo https://github.com/anima-libera/xxbf written to /workspace/builds/worker-36/source/Cargo.toml
[INFO] crate git repo https://github.com/anima-libera/xxbf already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 764e319bb4a4af94af20bbd3e03c8a836eb786c387a700e0ebc604d8c02049d2
[INFO] running `Command { std: "docker" "start" "-a" "764e319bb4a4af94af20bbd3e03c8a836eb786c387a700e0ebc604d8c02049d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "764e319bb4a4af94af20bbd3e03c8a836eb786c387a700e0ebc604d8c02049d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "764e319bb4a4af94af20bbd3e03c8a836eb786c387a700e0ebc604d8c02049d2", kill_on_drop: false }`
[INFO] [stdout] 764e319bb4a4af94af20bbd3e03c8a836eb786c387a700e0ebc604d8c02049d2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 80cd9dd8a272674661e1caf518257fd0159564793082bb973fcfd1054e5d9421
[INFO] running `Command { std: "docker" "start" "-a" "80cd9dd8a272674661e1caf518257fd0159564793082bb973fcfd1054e5d9421", kill_on_drop: false }`
[INFO] [stderr]    Compiling xxbf v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `raw_prog`
[INFO] [stdout]   --> src/graph.rs:43:12
[INFO] [stdout]    |
[INFO] [stdout] 43 | fn grahify(raw_prog: &Vec<SoupInstr>) -> Graph {
[INFO] [stdout]    |            ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_raw_prog`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `path`
[INFO] [stdout]   --> src/main.rs:33:2
[INFO] [stdout]    |
[INFO] [stdout] 33 |     path: Option<String>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `Settings` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/main.rs:31:10
[INFO] [stdout]    |
[INFO] [stdout] 31 | #[derive(Debug)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `BlockInstr`
[INFO] [stdout]  --> src/graph.rs:5:6
[INFO] [stdout]   |
[INFO] [stdout] 5 | enum BlockInstr {
[INFO] [stdout]   |      ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `BlockId`
[INFO] [stdout]   --> src/graph.rs:26:1
[INFO] [stdout]    |
[INFO] [stdout] 26 | type BlockId = u64;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `Terminator`
[INFO] [stdout]   --> src/graph.rs:28:6
[INFO] [stdout]    |
[INFO] [stdout] 28 | enum Terminator {
[INFO] [stdout]    |      ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Block`
[INFO] [stdout]   --> src/graph.rs:33:8
[INFO] [stdout]    |
[INFO] [stdout] 33 | struct Block {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Graph`
[INFO] [stdout]   --> src/graph.rs:38:8
[INFO] [stdout]    |
[INFO] [stdout] 38 | struct Graph {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `grahify`
[INFO] [stdout]   --> src/graph.rs:43:4
[INFO] [stdout]    |
[INFO] [stdout] 43 | fn grahify(raw_prog: &Vec<SoupInstr>) -> Graph {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.61s
[INFO] running `Command { std: "docker" "inspect" "80cd9dd8a272674661e1caf518257fd0159564793082bb973fcfd1054e5d9421", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "80cd9dd8a272674661e1caf518257fd0159564793082bb973fcfd1054e5d9421", kill_on_drop: false }`
[INFO] [stdout] 80cd9dd8a272674661e1caf518257fd0159564793082bb973fcfd1054e5d9421
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 279c1b07c30275e237bb19067758e4e1830c3749cf93bc0e545fbc03f10ca0b5
[INFO] running `Command { std: "docker" "start" "-a" "279c1b07c30275e237bb19067758e4e1830c3749cf93bc0e545fbc03f10ca0b5", kill_on_drop: false }`
[INFO] [stderr]    Compiling xxbf v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `raw_prog`
[INFO] [stdout]   --> src/graph.rs:43:12
[INFO] [stdout]    |
[INFO] [stdout] 43 | fn grahify(raw_prog: &Vec<SoupInstr>) -> Graph {
[INFO] [stdout]    |            ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_raw_prog`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `path`
[INFO] [stdout]   --> src/main.rs:33:2
[INFO] [stdout]    |
[INFO] [stdout] 33 |     path: Option<String>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `Settings` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/main.rs:31:10
[INFO] [stdout]    |
[INFO] [stdout] 31 | #[derive(Debug)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `BlockInstr`
[INFO] [stdout]  --> src/graph.rs:5:6
[INFO] [stdout]   |
[INFO] [stdout] 5 | enum BlockInstr {
[INFO] [stdout]   |      ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `BlockId`
[INFO] [stdout]   --> src/graph.rs:26:1
[INFO] [stdout]    |
[INFO] [stdout] 26 | type BlockId = u64;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `Terminator`
[INFO] [stdout]   --> src/graph.rs:28:6
[INFO] [stdout]    |
[INFO] [stdout] 28 | enum Terminator {
[INFO] [stdout]    |      ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Block`
[INFO] [stdout]   --> src/graph.rs:33:8
[INFO] [stdout]    |
[INFO] [stdout] 33 | struct Block {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Graph`
[INFO] [stdout]   --> src/graph.rs:38:8
[INFO] [stdout]    |
[INFO] [stdout] 38 | struct Graph {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `grahify`
[INFO] [stdout]   --> src/graph.rs:43:4
[INFO] [stdout]    |
[INFO] [stdout] 43 | fn grahify(raw_prog: &Vec<SoupInstr>) -> Graph {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.62s
[INFO] running `Command { std: "docker" "inspect" "279c1b07c30275e237bb19067758e4e1830c3749cf93bc0e545fbc03f10ca0b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "279c1b07c30275e237bb19067758e4e1830c3749cf93bc0e545fbc03f10ca0b5", kill_on_drop: false }`
[INFO] [stdout] 279c1b07c30275e237bb19067758e4e1830c3749cf93bc0e545fbc03f10ca0b5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4511102d38d13c8be8a34c5dfc4655fab2f15466d5e0b4a719eea663f1b968f8
[INFO] running `Command { std: "docker" "start" "-a" "4511102d38d13c8be8a34c5dfc4655fab2f15466d5e0b4a719eea663f1b968f8", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused variable: `raw_prog`
[INFO] [stderr]   --> src/graph.rs:43:12
[INFO] [stderr]    |
[INFO] [stderr] 43 | fn grahify(raw_prog: &Vec<SoupInstr>) -> Graph {
[INFO] [stderr]    |            ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_raw_prog`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `path`
[INFO] [stderr]   --> src/main.rs:33:2
[INFO] [stderr]    |
[INFO] [stderr] 33 |     path: Option<String>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] note: `Settings` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]   --> src/main.rs:31:10
[INFO] [stderr]    |
[INFO] [stderr] 31 | #[derive(Debug)]
[INFO] [stderr]    |          ^^^^^
[INFO] [stderr]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `BlockInstr`
[INFO] [stderr]  --> src/graph.rs:5:6
[INFO] [stderr]   |
[INFO] [stderr] 5 | enum BlockInstr {
[INFO] [stderr]   |      ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `BlockId`
[INFO] [stderr]   --> src/graph.rs:26:1
[INFO] [stderr]    |
[INFO] [stderr] 26 | type BlockId = u64;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `Terminator`
[INFO] [stderr]   --> src/graph.rs:28:6
[INFO] [stderr]    |
[INFO] [stderr] 28 | enum Terminator {
[INFO] [stderr]    |      ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Block`
[INFO] [stderr]   --> src/graph.rs:33:8
[INFO] [stderr]    |
[INFO] [stderr] 33 | struct Block {
[INFO] [stderr]    |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Graph`
[INFO] [stderr]   --> src/graph.rs:38:8
[INFO] [stderr]    |
[INFO] [stderr] 38 | struct Graph {
[INFO] [stderr]    |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `grahify`
[INFO] [stderr]   --> src/graph.rs:43:4
[INFO] [stderr]    |
[INFO] [stderr] 43 | fn grahify(raw_prog: &Vec<SoupInstr>) -> Graph {
[INFO] [stderr]    |    ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `xxbf` (bin "xxbf" test) generated 8 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 5.18s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/xxbf-29eb5957637b373c)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "4511102d38d13c8be8a34c5dfc4655fab2f15466d5e0b4a719eea663f1b968f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4511102d38d13c8be8a34c5dfc4655fab2f15466d5e0b4a719eea663f1b968f8", kill_on_drop: false }`
[INFO] [stdout] 4511102d38d13c8be8a34c5dfc4655fab2f15466d5e0b4a719eea663f1b968f8