[INFO] cloning repository https://github.com/lcnr/cobalt
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lcnr/cobalt" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flcnr%2Fcobalt", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flcnr%2Fcobalt'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f227a6d1ba75dc7d6b02bf41d48af9962a9b8ff3
[INFO] testing lcnr/cobalt against beta-2021-09-08 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flcnr%2Fcobalt" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lcnr/cobalt on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/lcnr/cobalt
[INFO] finished tweaking git repo https://github.com/lcnr/cobalt
[INFO] tweaked toml for git repo https://github.com/lcnr/cobalt written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/lcnr/cobalt already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/lcnr/tindex/`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cad8d440a9af7c84690ca59f1ebb0b74eca986b0bb2dc8fd1909cad822584968
[INFO] running `Command { std: "docker" "start" "-a" "cad8d440a9af7c84690ca59f1ebb0b74eca986b0bb2dc8fd1909cad822584968", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cad8d440a9af7c84690ca59f1ebb0b74eca986b0bb2dc8fd1909cad822584968", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cad8d440a9af7c84690ca59f1ebb0b74eca986b0bb2dc8fd1909cad822584968", kill_on_drop: false }`
[INFO] [stdout] cad8d440a9af7c84690ca59f1ebb0b74eca986b0bb2dc8fd1909cad822584968
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6ff7d40c93528fa2fd20ce1d463aa23c431d8acc622bab7acca35f374e2c399e
[INFO] running `Command { std: "docker" "start" "-a" "6ff7d40c93528fa2fd20ce1d463aa23c431d8acc622bab7acca35f374e2c399e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling beef v0.5.0
[INFO] [stderr]    Compiling utf8-ranges v1.0.4
[INFO] [stderr]    Compiling tindex v0.1.0 (https://github.com/lcnr/tindex/#659e7543)
[INFO] [stderr]    Compiling co_diag v0.1.0 (/opt/rustwide/workdir/co_diag)
[INFO] [stderr]    Compiling co_ast v0.1.0 (/opt/rustwide/workdir/co_ast)
[INFO] [stdout] warning: unused variable: `arg`
[INFO] [stdout]   --> co_ast/src/typeck.rs:79:32
[INFO] [stdout]    |
[INFO] [stdout] 79 |                 Res::LambdaArg(arg) => unreachable!(),
[INFO] [stdout]    |                                ^^^ help: if this is intentional, prefix it with an underscore: `_arg`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling logos-derive v0.12.0
[INFO] [stderr]    Compiling logos v0.12.0
[INFO] [stderr]    Compiling co_parse v0.1.0 (/opt/rustwide/workdir/co_parse)
[INFO] [stdout] warning: unused variable: `span`
[INFO] [stdout]    --> co_parse/src/lib.rs:153:59
[INFO] [stdout]     |
[INFO] [stdout] 153 |         (Token::Lambda | Token::Ident(_) | Token::LBrace, span) => parse_expr(lex, Some(expr)),
[INFO] [stdout]     |                                                           ^^^^ help: if this is intentional, prefix it with an underscore: `_span`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling cobalt v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.70s
[INFO] running `Command { std: "docker" "inspect" "6ff7d40c93528fa2fd20ce1d463aa23c431d8acc622bab7acca35f374e2c399e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ff7d40c93528fa2fd20ce1d463aa23c431d8acc622bab7acca35f374e2c399e", kill_on_drop: false }`
[INFO] [stdout] 6ff7d40c93528fa2fd20ce1d463aa23c431d8acc622bab7acca35f374e2c399e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5926f297ba6fcce849f772f410c616c5580e405c9bd4b86f0674a1559d596e31
[INFO] running `Command { std: "docker" "start" "-a" "5926f297ba6fcce849f772f410c616c5580e405c9bd4b86f0674a1559d596e31", kill_on_drop: false }`
[INFO] [stderr]    Compiling cobalt v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `arg`
[INFO] [stdout]   --> co_ast/src/typeck.rs:79:32
[INFO] [stdout]    |
[INFO] [stdout] 79 |                 Res::LambdaArg(arg) => unreachable!(),
[INFO] [stdout]    |                                ^^^ help: if this is intentional, prefix it with an underscore: `_arg`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `span`
[INFO] [stdout]    --> co_parse/src/lib.rs:153:59
[INFO] [stdout]     |
[INFO] [stdout] 153 |         (Token::Lambda | Token::Ident(_) | Token::LBrace, span) => parse_expr(lex, Some(expr)),
[INFO] [stdout]     |                                                           ^^^^ help: if this is intentional, prefix it with an underscore: `_span`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.71s
[INFO] running `Command { std: "docker" "inspect" "5926f297ba6fcce849f772f410c616c5580e405c9bd4b86f0674a1559d596e31", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5926f297ba6fcce849f772f410c616c5580e405c9bd4b86f0674a1559d596e31", kill_on_drop: false }`
[INFO] [stdout] 5926f297ba6fcce849f772f410c616c5580e405c9bd4b86f0674a1559d596e31
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 416a648348a1a030158a5954f9e10f6a4434144a194a70a1a3f94ea6d1acd374
[INFO] running `Command { std: "docker" "start" "-a" "416a648348a1a030158a5954f9e10f6a4434144a194a70a1a3f94ea6d1acd374", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `arg`
[INFO] [stderr]   --> co_ast/src/typeck.rs:79:32
[INFO] [stderr]    |
[INFO] [stderr] 79 |                 Res::LambdaArg(arg) => unreachable!(),
[INFO] [stderr]    |                                ^^^ help: if this is intentional, prefix it with an underscore: `_arg`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `co_ast` (lib) generated 1 warning
[INFO] [stderr] warning: unused variable: `span`
[INFO] [stderr]    --> co_parse/src/lib.rs:153:59
[INFO] [stderr]     |
[INFO] [stderr] 153 |         (Token::Lambda | Token::Ident(_) | Token::LBrace, span) => parse_expr(lex, Some(expr)),
[INFO] [stderr]     |                                                           ^^^^ help: if this is intentional, prefix it with an underscore: `_span`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `co_parse` (lib) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/cobalt-504921c0bc47508b)
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/cobalt-f3d0b71847ca6cbc)
[INFO] [stdout] running 0 tests
[INFO] [stderr]    Doc-tests cobalt
[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] [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] [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" "416a648348a1a030158a5954f9e10f6a4434144a194a70a1a3f94ea6d1acd374", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "416a648348a1a030158a5954f9e10f6a4434144a194a70a1a3f94ea6d1acd374", kill_on_drop: false }`
[INFO] [stdout] 416a648348a1a030158a5954f9e10f6a4434144a194a70a1a3f94ea6d1acd374