[INFO] cloning repository https://github.com/lassemoldrup/lambda-calculus
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lassemoldrup/lambda-calculus" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flassemoldrup%2Flambda-calculus", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flassemoldrup%2Flambda-calculus'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a2328e9197077594c478b13138340295e865df65
[INFO] testing lassemoldrup/lambda-calculus against beta-2021-01-01 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flassemoldrup%2Flambda-calculus" "/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/lassemoldrup/lambda-calculus on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/lassemoldrup/lambda-calculus
[INFO] finished tweaking git repo https://github.com/lassemoldrup/lambda-calculus
[INFO] tweaked toml for git repo https://github.com/lassemoldrup/lambda-calculus written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/lassemoldrup/lambda-calculus already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", 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] 984a84d34847c3903aafe54a87995bc230a4f57682c701d98d815d99533d1f85
[INFO] running `Command { std: "docker" "start" "-a" "984a84d34847c3903aafe54a87995bc230a4f57682c701d98d815d99533d1f85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "984a84d34847c3903aafe54a87995bc230a4f57682c701d98d815d99533d1f85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "984a84d34847c3903aafe54a87995bc230a4f57682c701d98d815d99533d1f85", kill_on_drop: false }`
[INFO] [stdout] 984a84d34847c3903aafe54a87995bc230a4f57682c701d98d815d99533d1f85
[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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 69e93bb0ab560b5ceb053764143e7a49b42840a2f110e0035efb0ae8f7597943
[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" "69e93bb0ab560b5ceb053764143e7a49b42840a2f110e0035efb0ae8f7597943", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling lambda-calculus v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `macros`
[INFO] [stdout]    --> src/parser.rs:149:42
[INFO] [stdout]     |
[INFO] [stdout] 149 | fn parse_macros<'a>(tokens: &'a [Token], macros: &mut Vec<MacroDef>) -> Result<&'a [Token]> {
[INFO] [stdout]     |                                          ^^^^^^ help: if this is intentional, prefix it with an underscore: `_macros`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `macros`
[INFO] [stdout]    --> src/parser.rs:153:32
[INFO] [stdout]     |
[INFO] [stdout] 153 | fn apply_macros(term: AstNode, macros: Vec<MacroDef>) -> AstNode {
[INFO] [stdout]     |                                ^^^^^^ help: if this is intentional, prefix it with an underscore: `_macros`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.43s
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "69e93bb0ab560b5ceb053764143e7a49b42840a2f110e0035efb0ae8f7597943", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "69e93bb0ab560b5ceb053764143e7a49b42840a2f110e0035efb0ae8f7597943", kill_on_drop: false }`
[INFO] [stdout] 69e93bb0ab560b5ceb053764143e7a49b42840a2f110e0035efb0ae8f7597943
[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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f3e36956b4c38b10ab7a285793e255f68d9787ed81ff0da9a189ce7866de92c5
[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" "f3e36956b4c38b10ab7a285793e255f68d9787ed81ff0da9a189ce7866de92c5", kill_on_drop: false }`
[INFO] [stderr]    Compiling lambda-calculus v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `macros`
[INFO] [stdout]    --> src/parser.rs:149:42
[INFO] [stdout]     |
[INFO] [stdout] 149 | fn parse_macros<'a>(tokens: &'a [Token], macros: &mut Vec<MacroDef>) -> Result<&'a [Token]> {
[INFO] [stdout]     |                                          ^^^^^^ help: if this is intentional, prefix it with an underscore: `_macros`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `macros`
[INFO] [stdout]    --> src/parser.rs:153:32
[INFO] [stdout]     |
[INFO] [stdout] 153 | fn apply_macros(term: AstNode, macros: Vec<MacroDef>) -> AstNode {
[INFO] [stdout]     |                                ^^^^^^ help: if this is intentional, prefix it with an underscore: `_macros`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.38s
[INFO] running `Command { std: "docker" "inspect" "f3e36956b4c38b10ab7a285793e255f68d9787ed81ff0da9a189ce7866de92c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3e36956b4c38b10ab7a285793e255f68d9787ed81ff0da9a189ce7866de92c5", kill_on_drop: false }`
[INFO] [stdout] f3e36956b4c38b10ab7a285793e255f68d9787ed81ff0da9a189ce7866de92c5
[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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "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] 40a632c82daed0a76d8598b494b977dcd4d2d96cc47086515f7cf1469302bc32
[INFO] running `Command { std: "docker" "start" "-a" "40a632c82daed0a76d8598b494b977dcd4d2d96cc47086515f7cf1469302bc32", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `macros`
[INFO] [stderr]    --> src/parser.rs:149:42
[INFO] [stderr]     |
[INFO] [stderr] 149 | fn parse_macros<'a>(tokens: &'a [Token], macros: &mut Vec<MacroDef>) -> Result<&'a [Token]> {
[INFO] [stderr]     |                                          ^^^^^^ help: if this is intentional, prefix it with an underscore: `_macros`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `macros`
[INFO] [stderr]    --> src/parser.rs:153:32
[INFO] [stderr]     |
[INFO] [stderr] 153 | fn apply_macros(term: AstNode, macros: Vec<MacroDef>) -> AstNode {
[INFO] [stderr]     |                                ^^^^^^ help: if this is intentional, prefix it with an underscore: `_macros`
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test lexer::test_tokenize_id ... ok
[INFO] [stdout] test lexer::test_tokenize ... ok
[INFO] [stdout] test parser::test_parse ... ok
[INFO] [stdout] test lexer::test_tokenize_char ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/lambda_calculus-3bfeed85439a5a45
[INFO] running `Command { std: "docker" "inspect" "40a632c82daed0a76d8598b494b977dcd4d2d96cc47086515f7cf1469302bc32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "40a632c82daed0a76d8598b494b977dcd4d2d96cc47086515f7cf1469302bc32", kill_on_drop: false }`
[INFO] [stdout] 40a632c82daed0a76d8598b494b977dcd4d2d96cc47086515f7cf1469302bc32