[INFO] cloning repository https://github.com/nipzu/bf-compiler
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nipzu/bf-compiler" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnipzu%2Fbf-compiler", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnipzu%2Fbf-compiler'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f441b291ddb44b350b03ff4577f221ca714e6e37
[INFO] testing nipzu/bf-compiler against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnipzu%2Fbf-compiler" "/workspace/builds/worker-16/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-16/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nipzu/bf-compiler on toolchain 62efba8a050c64249dab942951bb28f710208bc8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/nipzu/bf-compiler
[INFO] finished tweaking git repo https://github.com/nipzu/bf-compiler
[INFO] tweaked toml for git repo https://github.com/nipzu/bf-compiler written to /workspace/builds/worker-16/source/Cargo.toml
[INFO] crate git repo https://github.com/nipzu/bf-compiler already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "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-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2b37f44fb1a9b50fc7966a0e726c5d6dadb4e84d5542b9a73b55ca9c8e549122
[INFO] running `Command { std: "docker" "start" "-a" "2b37f44fb1a9b50fc7966a0e726c5d6dadb4e84d5542b9a73b55ca9c8e549122", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2b37f44fb1a9b50fc7966a0e726c5d6dadb4e84d5542b9a73b55ca9c8e549122", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b37f44fb1a9b50fc7966a0e726c5d6dadb4e84d5542b9a73b55ca9c8e549122", kill_on_drop: false }`
[INFO] [stdout] 2b37f44fb1a9b50fc7966a0e726c5d6dadb4e84d5542b9a73b55ca9c8e549122
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 19fcb20602c1df6fc741d2dffa4f2c71070f4ded72e1868c369b833de4710496
[INFO] running `Command { std: "docker" "start" "-a" "19fcb20602c1df6fc741d2dffa4f2c71070f4ded72e1868c369b833de4710496", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]    Compiling argh_shared v0.1.6
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling argh_derive v0.1.6
[INFO] [stderr]    Compiling argh v0.1.6
[INFO] [stderr]    Compiling bf-compiler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct is never constructed: `BasicBlock`
[INFO] [stdout]  --> src/block.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct BasicBlock {
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `Instruction`
[INFO] [stdout]   --> src/block.rs:11:6
[INFO] [stdout]    |
[INFO] [stdout] 11 | enum Instruction {
[INFO] [stdout]    |      ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `ReadModified`
[INFO] [stdout]   --> src/block.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 |     ReadModified(u64, i64),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Original`
[INFO] [stdout]   --> src/block.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 |     Original(i64),
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `inc`
[INFO] [stdout]   --> src/block.rs:27:8
[INFO] [stdout]    |
[INFO] [stdout] 27 |     fn inc(&mut self) {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `dec`
[INFO] [stdout]   --> src/block.rs:33:8
[INFO] [stdout]    |
[INFO] [stdout] 33 |     fn dec(&mut self) {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/block.rs:42:8
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn new(v: &[BFToken]) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `output`
[INFO] [stdout]   --> src/main.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     output: String,
[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 45.80s
[INFO] running `Command { std: "docker" "inspect" "19fcb20602c1df6fc741d2dffa4f2c71070f4ded72e1868c369b833de4710496", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19fcb20602c1df6fc741d2dffa4f2c71070f4ded72e1868c369b833de4710496", kill_on_drop: false }`
[INFO] [stdout] 19fcb20602c1df6fc741d2dffa4f2c71070f4ded72e1868c369b833de4710496
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 61635b9038362dd830d58803f5464d8c42fda0f72316b1029018a554acad0338
[INFO] running `Command { std: "docker" "start" "-a" "61635b9038362dd830d58803f5464d8c42fda0f72316b1029018a554acad0338", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling bf-compiler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct is never constructed: `BasicBlock`
[INFO] [stdout]  --> src/block.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct BasicBlock {
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `Instruction`
[INFO] [stdout]   --> src/block.rs:11:6
[INFO] [stdout]    |
[INFO] [stdout] 11 | enum Instruction {
[INFO] [stdout]    |      ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `ReadModified`
[INFO] [stdout]   --> src/block.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 |     ReadModified(u64, i64),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Original`
[INFO] [stdout]   --> src/block.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 |     Original(i64),
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `inc`
[INFO] [stdout]   --> src/block.rs:27:8
[INFO] [stdout]    |
[INFO] [stdout] 27 |     fn inc(&mut self) {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `dec`
[INFO] [stdout]   --> src/block.rs:33:8
[INFO] [stdout]    |
[INFO] [stdout] 33 |     fn dec(&mut self) {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/block.rs:42:8
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn new(v: &[BFToken]) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `output`
[INFO] [stdout]   --> src/main.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     output: String,
[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 2.58s
[INFO] running `Command { std: "docker" "inspect" "61635b9038362dd830d58803f5464d8c42fda0f72316b1029018a554acad0338", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "61635b9038362dd830d58803f5464d8c42fda0f72316b1029018a554acad0338", kill_on_drop: false }`
[INFO] [stdout] 61635b9038362dd830d58803f5464d8c42fda0f72316b1029018a554acad0338
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5dd8794de7fd4c2fe25dd25f6dc2d2d6c7287eb1ab7431f77269ed516472a012
[INFO] running `Command { std: "docker" "start" "-a" "5dd8794de7fd4c2fe25dd25f6dc2d2d6c7287eb1ab7431f77269ed516472a012", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: struct is never constructed: `BasicBlock`
[INFO] [stderr]  --> src/block.rs:5:8
[INFO] [stderr]   |
[INFO] [stderr] 5 | struct BasicBlock {
[INFO] [stderr]   |        ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `Instruction`
[INFO] [stderr]   --> src/block.rs:11:6
[INFO] [stderr]    |
[INFO] [stderr] 11 | enum Instruction {
[INFO] [stderr]    |      ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `ReadModified`
[INFO] [stderr]   --> src/block.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 |     ReadModified(u64, i64),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Original`
[INFO] [stderr]   --> src/block.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 |     Original(i64),
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `inc`
[INFO] [stderr]   --> src/block.rs:27:8
[INFO] [stderr]    |
[INFO] [stderr] 27 |     fn inc(&mut self) {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `dec`
[INFO] [stderr]   --> src/block.rs:33:8
[INFO] [stderr]    |
[INFO] [stderr] 33 |     fn dec(&mut self) {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/block.rs:42:8
[INFO] [stderr]    |
[INFO] [stderr] 42 |     fn new(v: &[BFToken]) -> Self {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `output`
[INFO] [stderr]   --> src/main.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     output: String,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `bf-compiler` (bin "bf-compiler" test) generated 8 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.99s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/bf_compiler-46d271c99f45d539)
[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" "5dd8794de7fd4c2fe25dd25f6dc2d2d6c7287eb1ab7431f77269ed516472a012", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5dd8794de7fd4c2fe25dd25f6dc2d2d6c7287eb1ab7431f77269ed516472a012", kill_on_drop: false }`
[INFO] [stdout] 5dd8794de7fd4c2fe25dd25f6dc2d2d6c7287eb1ab7431f77269ed516472a012