[INFO] cloning repository https://github.com/silmeth/yarli
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/silmeth/yarli" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsilmeth%2Fyarli", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsilmeth%2Fyarli'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] deba8b83a42ef4d92fd3174ca91bd936bff9a730
[INFO] testing silmeth/yarli against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsilmeth%2Fyarli" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/silmeth/yarli on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/silmeth/yarli
[INFO] finished tweaking git repo https://github.com/silmeth/yarli
[INFO] tweaked toml for git repo https://github.com/silmeth/yarli written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/silmeth/yarli already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4b9c46c220a50a8e87ac1c50b336a3963d3d11e613bff856e41b3810f305ef85
[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" "4b9c46c220a50a8e87ac1c50b336a3963d3d11e613bff856e41b3810f305ef85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4b9c46c220a50a8e87ac1c50b336a3963d3d11e613bff856e41b3810f305ef85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b9c46c220a50a8e87ac1c50b336a3963d3d11e613bff856e41b3810f305ef85", kill_on_drop: false }`
[INFO] [stdout] 4b9c46c220a50a8e87ac1c50b336a3963d3d11e613bff856e41b3810f305ef85
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+1.49.0" "build" "--frozen" "--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] 856684decbbc4d1242e20db53c19d69139616ea63ddddf42d1d3daf5d353eebb
[INFO] running `Command { std: "docker" "start" "-a" "856684decbbc4d1242e20db53c19d69139616ea63ddddf42d1d3daf5d353eebb", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.17
[INFO] [stderr]    Compiling num-traits v0.2.4
[INFO] [stderr]    Compiling num-integer v0.1.38
[INFO] [stderr]    Compiling cfg-if v0.1.3
[INFO] [stderr]    Compiling time v0.1.40
[INFO] [stderr]    Compiling backtrace-sys v0.1.23
[INFO] [stderr]    Compiling chrono v0.4.2
[INFO] [stderr]    Compiling backtrace v0.3.8
[INFO] [stderr]    Compiling failure v0.1.1
[INFO] [stderr]    Compiling yarli v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lox/ast.rs:96:17
[INFO] [stdout]    |
[INFO] [stdout] 96 |     Function(Rc<Callable>),
[INFO] [stdout]    |                 ^^^^^^^^ help: use `dyn`: `dyn Callable`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lox/ast.rs:110:69
[INFO] [stdout]     |
[INFO] [stdout] 110 |             (Value::Function(lh), Value::Function(rh)) => ptr::eq::<Callable>(lh.borrow(), rh.borrow()),
[INFO] [stdout]     |                                                                     ^^^^^^^^ help: use `dyn`: `dyn Callable`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lox/interpreter.rs:278:17
[INFO] [stdout]     |
[INFO] [stdout] 278 |     type C = Rc<Callable>;
[INFO] [stdout]     |                 ^^^^^^^^ help: use `dyn`: `dyn Callable`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `print_ast`
[INFO] [stdout]    --> src/lox/ast.rs:145:12
[INFO] [stdout]     |
[INFO] [stdout] 145 |     pub fn print_ast(expr: &Expr) -> String {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parenthesize`
[INFO] [stdout]    --> src/lox/ast.rs:168:8
[INFO] [stdout]     |
[INFO] [stdout] 168 |     fn parenthesize(name: &str, exprs: &[&Expr]) -> String {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `globals`
[INFO] [stdout]   --> src/lox/interpreter.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     globals: EnvironmentCell,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.34s
[INFO] running `Command { std: "docker" "inspect" "856684decbbc4d1242e20db53c19d69139616ea63ddddf42d1d3daf5d353eebb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "856684decbbc4d1242e20db53c19d69139616ea63ddddf42d1d3daf5d353eebb", kill_on_drop: false }`
[INFO] [stdout] 856684decbbc4d1242e20db53c19d69139616ea63ddddf42d1d3daf5d353eebb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+1.49.0" "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] 2ba8e7a458d88dddf0ee95e40e4efd381773a41f95413f11930ea51238358815
[INFO] running `Command { std: "docker" "start" "-a" "2ba8e7a458d88dddf0ee95e40e4efd381773a41f95413f11930ea51238358815", kill_on_drop: false }`
[INFO] [stderr]    Compiling yarli v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lox/ast.rs:96:17
[INFO] [stdout]    |
[INFO] [stdout] 96 |     Function(Rc<Callable>),
[INFO] [stdout]    |                 ^^^^^^^^ help: use `dyn`: `dyn Callable`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lox/ast.rs:110:69
[INFO] [stdout]     |
[INFO] [stdout] 110 |             (Value::Function(lh), Value::Function(rh)) => ptr::eq::<Callable>(lh.borrow(), rh.borrow()),
[INFO] [stdout]     |                                                                     ^^^^^^^^ help: use `dyn`: `dyn Callable`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lox/interpreter.rs:278:17
[INFO] [stdout]     |
[INFO] [stdout] 278 |     type C = Rc<Callable>;
[INFO] [stdout]     |                 ^^^^^^^^ help: use `dyn`: `dyn Callable`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `print_ast`
[INFO] [stdout]    --> src/lox/ast.rs:145:12
[INFO] [stdout]     |
[INFO] [stdout] 145 |     pub fn print_ast(expr: &Expr) -> String {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parenthesize`
[INFO] [stdout]    --> src/lox/ast.rs:168:8
[INFO] [stdout]     |
[INFO] [stdout] 168 |     fn parenthesize(name: &str, exprs: &[&Expr]) -> String {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `globals`
[INFO] [stdout]   --> src/lox/interpreter.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     globals: EnvironmentCell,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.93s
[INFO] running `Command { std: "docker" "inspect" "2ba8e7a458d88dddf0ee95e40e4efd381773a41f95413f11930ea51238358815", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ba8e7a458d88dddf0ee95e40e4efd381773a41f95413f11930ea51238358815", kill_on_drop: false }`
[INFO] [stdout] 2ba8e7a458d88dddf0ee95e40e4efd381773a41f95413f11930ea51238358815
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f976c686439db58a38afaa1fdadb600ac26cfab2e5c049a400a27dc0802c7391
[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" "f976c686439db58a38afaa1fdadb600ac26cfab2e5c049a400a27dc0802c7391", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout] running 0 tests
[INFO] [stderr]   --> src/lox/ast.rs:96:17
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stderr] 96 |     Function(Rc<Callable>),
[INFO] [stdout] 
[INFO] [stderr]    |                 ^^^^^^^^ help: use `dyn`: `dyn Callable`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lox/ast.rs:110:69
[INFO] [stderr]     |
[INFO] [stderr] 110 |             (Value::Function(lh), Value::Function(rh)) => ptr::eq::<Callable>(lh.borrow(), rh.borrow()),
[INFO] [stderr]     |                                                                     ^^^^^^^^ help: use `dyn`: `dyn Callable`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lox/interpreter.rs:278:17
[INFO] [stderr]     |
[INFO] [stderr] 278 |     type C = Rc<Callable>;
[INFO] [stderr]     |                 ^^^^^^^^ help: use `dyn`: `dyn Callable`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `print_ast`
[INFO] [stderr]    --> src/lox/ast.rs:145:12
[INFO] [stderr]     |
[INFO] [stderr] 145 |     pub fn print_ast(expr: &Expr) -> String {
[INFO] [stderr]     |            ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parenthesize`
[INFO] [stderr]    --> src/lox/ast.rs:168:8
[INFO] [stderr]     |
[INFO] [stderr] 168 |     fn parenthesize(name: &str, exprs: &[&Expr]) -> String {
[INFO] [stderr]     |        ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `globals`
[INFO] [stderr]   --> src/lox/interpreter.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     globals: EnvironmentCell,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 6 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/yarli-2ac7bd1f28c87dd6
[INFO] running `Command { std: "docker" "inspect" "f976c686439db58a38afaa1fdadb600ac26cfab2e5c049a400a27dc0802c7391", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f976c686439db58a38afaa1fdadb600ac26cfab2e5c049a400a27dc0802c7391", kill_on_drop: false }`
[INFO] [stdout] f976c686439db58a38afaa1fdadb600ac26cfab2e5c049a400a27dc0802c7391