[INFO] fetching crate gll 0.0.2...
[INFO] testing gll-0.0.2 against 1.47.0 for beta-1.48-1
[INFO] extracting crate gll 0.0.2 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate gll 0.0.2 on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate gll 0.0.2
[INFO] finished tweaking crates.io crate gll 0.0.2
[INFO] tweaked toml for crates.io crate gll 0.0.2 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5f64fa30c2a312b4388c2716c96fcf877c7913ddd9d688bf9fff05f8538daec4
[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" "5f64fa30c2a312b4388c2716c96fcf877c7913ddd9d688bf9fff05f8538daec4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5f64fa30c2a312b4388c2716c96fcf877c7913ddd9d688bf9fff05f8538daec4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f64fa30c2a312b4388c2716c96fcf877c7913ddd9d688bf9fff05f8538daec4", kill_on_drop: false }`
[INFO] [stdout] 5f64fa30c2a312b4388c2716c96fcf877c7913ddd9d688bf9fff05f8538daec4
[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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cb0be9accc33a5061b176185c2dab819ec376b2a6dae1b2ce5d8a3906d26420e
[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" "cb0be9accc33a5061b176185c2dab819ec376b2a6dae1b2ce5d8a3906d26420e", kill_on_drop: false }`
[INFO] [stderr]    Compiling indexing v0.3.2
[INFO] [stderr]    Compiling gll v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]     --> src/generate/rust.rs:1477:21
[INFO] [stdout]      |
[INFO] [stdout] 1477 | /                     write!(
[INFO] [stdout] 1478 | |                         s,
[INFO] [stdout] 1479 | |                         "{} _{}: {} => {},",
[INFO] [stdout] 1480 | |                         i,
[INFO] [stdout] ...    |
[INFO] [stdout] 1483 | |                         rule.generate_traverse_shape(true, parse_nodes)
[INFO] [stdout] 1484 | |                     );
[INFO] [stdout]      | |______________________^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]      = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]     --> src/generate/rust.rs:1486:17
[INFO] [stdout]      |
[INFO] [stdout] 1486 |                 write!(s, " }}");
[INFO] [stdout]      |                 ^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]      = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/runtime.rs:425:43
[INFO] [stdout]     |
[INFO] [stdout] 425 |     pub fn dump_graphviz(&self, out: &mut Write) -> io::Result<()> {
[INFO] [stdout]     |                                           ^^^^^ help: use `dyn`: `dyn Write`
[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/runtime.rs:575:43
[INFO] [stdout]     |
[INFO] [stdout] 575 |     pub fn dump_graphviz(&self, out: &mut Write) -> io::Result<()> {
[INFO] [stdout]     |                                           ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]     --> src/generate/rust.rs:1477:21
[INFO] [stdout]      |
[INFO] [stdout] 1477 | /                     write!(
[INFO] [stdout] 1478 | |                         s,
[INFO] [stdout] 1479 | |                         "{} _{}: {} => {},",
[INFO] [stdout] 1480 | |                         i,
[INFO] [stdout] ...    |
[INFO] [stdout] 1483 | |                         rule.generate_traverse_shape(true, parse_nodes)
[INFO] [stdout] 1484 | |                     );
[INFO] [stdout]      | |______________________^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]      = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]     --> src/generate/rust.rs:1486:17
[INFO] [stdout]      |
[INFO] [stdout] 1486 |                 write!(s, " }}");
[INFO] [stdout]      |                 ^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]      = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.31s
[INFO] running `Command { std: "docker" "inspect" "cb0be9accc33a5061b176185c2dab819ec376b2a6dae1b2ce5d8a3906d26420e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb0be9accc33a5061b176185c2dab819ec376b2a6dae1b2ce5d8a3906d26420e", kill_on_drop: false }`
[INFO] [stdout] cb0be9accc33a5061b176185c2dab819ec376b2a6dae1b2ce5d8a3906d26420e
[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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9329d52019b81f5472e57d9aaaa25e18b9a89b13504a9bf63c5ad47497695b7d
[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" "9329d52019b81f5472e57d9aaaa25e18b9a89b13504a9bf63c5ad47497695b7d", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] running `Command { std: "docker" "inspect" "9329d52019b81f5472e57d9aaaa25e18b9a89b13504a9bf63c5ad47497695b7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9329d52019b81f5472e57d9aaaa25e18b9a89b13504a9bf63c5ad47497695b7d", kill_on_drop: false }`
[INFO] [stdout] 9329d52019b81f5472e57d9aaaa25e18b9a89b13504a9bf63c5ad47497695b7d
[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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "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] 3a51f7de8f3dc1acc6dc3887b42d850cbe277138e7a6ee1a49ca49011d839196
[INFO] running `Command { std: "docker" "start" "-a" "3a51f7de8f3dc1acc6dc3887b42d850cbe277138e7a6ee1a49ca49011d839196", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] running `Command { std: "docker" "inspect" "3a51f7de8f3dc1acc6dc3887b42d850cbe277138e7a6ee1a49ca49011d839196", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a51f7de8f3dc1acc6dc3887b42d850cbe277138e7a6ee1a49ca49011d839196", kill_on_drop: false }`
[INFO] [stdout] 3a51f7de8f3dc1acc6dc3887b42d850cbe277138e7a6ee1a49ca49011d839196
