[INFO] cloning repository https://github.com/biwakonbu/rscheme
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/biwakonbu/rscheme" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbiwakonbu%2Frscheme", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbiwakonbu%2Frscheme'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0289be7873955bededb3cefcb0f875a1ceb6086c
[INFO] testing biwakonbu/rscheme against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbiwakonbu%2Frscheme" "/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/biwakonbu/rscheme on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/biwakonbu/rscheme
[INFO] finished tweaking git repo https://github.com/biwakonbu/rscheme
[INFO] tweaked toml for git repo https://github.com/biwakonbu/rscheme written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/biwakonbu/rscheme already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b41932effa5ef67f312f0694816f113014e7186523e29e428f606aa7ff627523
[INFO] running `Command { std: "docker" "start" "-a" "b41932effa5ef67f312f0694816f113014e7186523e29e428f606aa7ff627523", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b41932effa5ef67f312f0694816f113014e7186523e29e428f606aa7ff627523", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b41932effa5ef67f312f0694816f113014e7186523e29e428f606aa7ff627523", kill_on_drop: false }`
[INFO] [stdout] b41932effa5ef67f312f0694816f113014e7186523e29e428f606aa7ff627523
[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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e97dc3e94424031b847a3ab60f0c10ed3ed84e1041e25db450a2c7e67ac807cf
[INFO] running `Command { std: "docker" "start" "-a" "e97dc3e94424031b847a3ab60f0c10ed3ed84e1041e25db450a2c7e67ac807cf", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling utf8parse v0.2.0
[INFO] [stderr]    Compiling dirs-sys-next v0.1.1
[INFO] [stderr]    Compiling nix v0.19.1
[INFO] [stderr]    Compiling fs2 v0.4.3
[INFO] [stderr]    Compiling dirs-next v2.0.0
[INFO] [stderr]    Compiling rustyline v7.1.0
[INFO] [stderr]    Compiling rscheme v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `ast`
[INFO] [stdout]  --> src/core/eval.rs:3:13
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn eval(ast: AST) {
[INFO] [stdout]   |             ^^^ help: if this is intentional, prefix it with an underscore: `_ast`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `ast` is never read
[INFO] [stdout]   --> src/core/read.rs:17:13
[INFO] [stdout]    |
[INFO] [stdout] 17 |     let mut ast = AST::new();
[INFO] [stdout]    |             ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 28s
[INFO] running `Command { std: "docker" "inspect" "e97dc3e94424031b847a3ab60f0c10ed3ed84e1041e25db450a2c7e67ac807cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e97dc3e94424031b847a3ab60f0c10ed3ed84e1041e25db450a2c7e67ac807cf", kill_on_drop: false }`
[INFO] [stdout] e97dc3e94424031b847a3ab60f0c10ed3ed84e1041e25db450a2c7e67ac807cf
[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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 97f409de9c329e7759077880736ecd89f4e092c7046b9817e4d4120dc23aa2e0
[INFO] running `Command { std: "docker" "start" "-a" "97f409de9c329e7759077880736ecd89f4e092c7046b9817e4d4120dc23aa2e0", kill_on_drop: false }`
[INFO] [stdout] warning: unused variable: `ast`
[INFO] [stdout]  --> src/core/eval.rs:3:13
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn eval(ast: AST) {
[INFO] [stdout]   |             ^^^ help: if this is intentional, prefix it with an underscore: `_ast`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rscheme v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `ast` is never read
[INFO] [stdout]   --> src/core/read.rs:17:13
[INFO] [stdout]    |
[INFO] [stdout] 17 |     let mut ast = AST::new();
[INFO] [stdout]    |             ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ast`
[INFO] [stdout]  --> src/core/eval.rs:3:13
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn eval(ast: AST) {
[INFO] [stdout]   |             ^^^ help: if this is intentional, prefix it with an underscore: `_ast`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `ast` is never read
[INFO] [stdout]   --> src/core/read.rs:17:13
[INFO] [stdout]    |
[INFO] [stdout] 17 |     let mut ast = AST::new();
[INFO] [stdout]    |             ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.45s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/rscheme-4d7e53d98510d709)
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/rscheme-dcbfd30a20c63157)
[INFO] running `Command { std: "docker" "inspect" "97f409de9c329e7759077880736ecd89f4e092c7046b9817e4d4120dc23aa2e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97f409de9c329e7759077880736ecd89f4e092c7046b9817e4d4120dc23aa2e0", kill_on_drop: false }`
[INFO] [stdout] 97f409de9c329e7759077880736ecd89f4e092c7046b9817e4d4120dc23aa2e0
[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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 86a99e481538f46a16b4ba3e35d5bdb0fec6cae99364e0fb693e4432a7a6d760
[INFO] running `Command { std: "docker" "start" "-a" "86a99e481538f46a16b4ba3e35d5bdb0fec6cae99364e0fb693e4432a7a6d760", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `ast`
[INFO] [stderr]  --> src/core/eval.rs:3:13
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn eval(ast: AST) {
[INFO] [stderr]   |             ^^^ help: if this is intentional, prefix it with an underscore: `_ast`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `ast` is never read
[INFO] [stderr]   --> src/core/read.rs:17:13
[INFO] [stderr]    |
[INFO] [stderr] 17 |     let mut ast = AST::new();
[INFO] [stderr]    |             ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: `rscheme` (lib) generated 2 warnings
[INFO] [stderr] warning: `rscheme` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rscheme-4d7e53d98510d709)
[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] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rscheme-dcbfd30a20c63157)
[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] [stderr]    Doc-tests rscheme
[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" "86a99e481538f46a16b4ba3e35d5bdb0fec6cae99364e0fb693e4432a7a6d760", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "86a99e481538f46a16b4ba3e35d5bdb0fec6cae99364e0fb693e4432a7a6d760", kill_on_drop: false }`
[INFO] [stdout] 86a99e481538f46a16b4ba3e35d5bdb0fec6cae99364e0fb693e4432a7a6d760