[INFO] cloning repository https://github.com/motokishibata/rustcc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/motokishibata/rustcc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmotokishibata%2Frustcc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmotokishibata%2Frustcc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ac2c42a635e1dc8ac75bc8274643c01fee1fd9cc
[INFO] testing motokishibata/rustcc 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%2Fmotokishibata%2Frustcc" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/motokishibata/rustcc 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/motokishibata/rustcc
[INFO] finished tweaking git repo https://github.com/motokishibata/rustcc
[INFO] tweaked toml for git repo https://github.com/motokishibata/rustcc written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/motokishibata/rustcc 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 3be0ef69384063844e58c7f0cb1b6a9b0f9f621e9dc5fdb769fe2fa91e01efb3
[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" "3be0ef69384063844e58c7f0cb1b6a9b0f9f621e9dc5fdb769fe2fa91e01efb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3be0ef69384063844e58c7f0cb1b6a9b0f9f621e9dc5fdb769fe2fa91e01efb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3be0ef69384063844e58c7f0cb1b6a9b0f9f621e9dc5fdb769fe2fa91e01efb3", kill_on_drop: false }`
[INFO] [stdout] 3be0ef69384063844e58c7f0cb1b6a9b0f9f621e9dc5fdb769fe2fa91e01efb3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 1ed36b395a858a7ae48a9f81d1f2d97d6496c63004a7a9343802d8448119214e
[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" "1ed36b395a858a7ae48a9f81d1f2d97d6496c63004a7a9343802d8448119214e", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustcc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant is never constructed: `Call`
[INFO] [stdout]   --> src/gen_ir.rs:65:5
[INFO] [stdout]    |
[INFO] [stdout] 65 |     Call(String, usize),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `IROp` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/gen_ir.rs:53:10
[INFO] [stdout]    |
[INFO] [stdout] 53 | #[derive(Clone, Debug, PartialEq)]
[INFO] [stdout]    |          ^^^^^  ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `ARGREGS`
[INFO] [stdout]  --> src/gen_x86.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | const ARGREGS: [&str; 6] = ["rdi", "rsi", "rdx", "rcx", "r8", "r9"];
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.90s
[INFO] running `Command { std: "docker" "inspect" "1ed36b395a858a7ae48a9f81d1f2d97d6496c63004a7a9343802d8448119214e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ed36b395a858a7ae48a9f81d1f2d97d6496c63004a7a9343802d8448119214e", kill_on_drop: false }`
[INFO] [stdout] 1ed36b395a858a7ae48a9f81d1f2d97d6496c63004a7a9343802d8448119214e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] edd062d77801ec311d0fa01bbb763029984d2763074795d26ad1bb850aaf8031
[INFO] running `Command { std: "docker" "start" "-a" "edd062d77801ec311d0fa01bbb763029984d2763074795d26ad1bb850aaf8031", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustcc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant is never constructed: `Call`
[INFO] [stdout]   --> src/gen_ir.rs:65:5
[INFO] [stdout]    |
[INFO] [stdout] 65 |     Call(String, usize),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `IROp` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/gen_ir.rs:53:10
[INFO] [stdout]    |
[INFO] [stdout] 53 | #[derive(Clone, Debug, PartialEq)]
[INFO] [stdout]    |          ^^^^^  ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `ARGREGS`
[INFO] [stdout]  --> src/gen_x86.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | const ARGREGS: [&str; 6] = ["rdi", "rsi", "rdx", "rcx", "r8", "r9"];
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.15s
[INFO] running `Command { std: "docker" "inspect" "edd062d77801ec311d0fa01bbb763029984d2763074795d26ad1bb850aaf8031", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "edd062d77801ec311d0fa01bbb763029984d2763074795d26ad1bb850aaf8031", kill_on_drop: false }`
[INFO] [stdout] edd062d77801ec311d0fa01bbb763029984d2763074795d26ad1bb850aaf8031
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 19b1a309ffc0da2f9bac94d6aba30b8788ac40eb1408358213230d7302b6138e
[INFO] running `Command { std: "docker" "start" "-a" "19b1a309ffc0da2f9bac94d6aba30b8788ac40eb1408358213230d7302b6138e", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: variant is never constructed: `Call`
[INFO] [stdout] running 0 tests
[INFO] [stderr]   --> src/gen_ir.rs:65:5
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 65 |     Call(String, usize),
[INFO] [stdout] 
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stdout] running 0 tests
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stderr] note: `IROp` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]   --> src/gen_ir.rs:53:10
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stderr] 53 | #[derive(Clone, Debug, PartialEq)]
[INFO] [stderr]    |          ^^^^^  ^^^^^
[INFO] [stderr]    = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `ARGREGS`
[INFO] [stderr]  --> src/gen_x86.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | const ARGREGS: [&str; 6] = ["rdi", "rsi", "rdx", "rcx", "r8", "r9"];
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `rustcc` (bin "rustcc" test) generated 2 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rustcc-63fb1aec36df8719)
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rustcc-129da45e1f0e56b1)
[INFO] [stderr]    Doc-tests rustcc
[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" "19b1a309ffc0da2f9bac94d6aba30b8788ac40eb1408358213230d7302b6138e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19b1a309ffc0da2f9bac94d6aba30b8788ac40eb1408358213230d7302b6138e", kill_on_drop: false }`
[INFO] [stdout] 19b1a309ffc0da2f9bac94d6aba30b8788ac40eb1408358213230d7302b6138e