[INFO] fetching crate jlens 0.0.1...
[INFO] testing jlens-0.0.1 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate jlens 0.0.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate jlens 0.0.1 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 crates.io crate jlens 0.0.1
[INFO] finished tweaking crates.io crate jlens 0.0.1
[INFO] tweaked toml for crates.io crate jlens 0.0.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1cc883feee59e96178b7164811e8e076ed6255450310edebeb2daf7be5908293
[INFO] running `Command { std: "docker" "start" "-a" "1cc883feee59e96178b7164811e8e076ed6255450310edebeb2daf7be5908293", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1cc883feee59e96178b7164811e8e076ed6255450310edebeb2daf7be5908293", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1cc883feee59e96178b7164811e8e076ed6255450310edebeb2daf7be5908293", kill_on_drop: false }`
[INFO] [stdout] 1cc883feee59e96178b7164811e8e076ed6255450310edebeb2daf7be5908293
[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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 665d459f20204a3b0ec6763eefad471a15451739e0d4a6ed9669714380df8a9e
[INFO] running `Command { std: "docker" "start" "-a" "665d459f20204a3b0ec6763eefad471a15451739e0d4a6ed9669714380df8a9e", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling jlens v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: patterns aren't allowed in functions without bodies
[INFO] [stdout]    --> src/lib.rs:129:56
[INFO] [stdout]     |
[INFO] [stdout] 129 |     fn select<'a,'b,F>(&self, input: &JsonPath<'a,'b>, mut f: F)
[INFO] [stdout]     |                                                        ^^^^^ help: remove `mut` from the parameter: `f`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(patterns_in_fns_without_body)]` on by default
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #35203 <https://github.com/rust-lang/rust/issues/35203>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.47s
[INFO] running `Command { std: "docker" "inspect" "665d459f20204a3b0ec6763eefad471a15451739e0d4a6ed9669714380df8a9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "665d459f20204a3b0ec6763eefad471a15451739e0d4a6ed9669714380df8a9e", kill_on_drop: false }`
[INFO] [stdout] 665d459f20204a3b0ec6763eefad471a15451739e0d4a6ed9669714380df8a9e
[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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d61e5c78e187c6677fd42a5587ae6d6a34adbdf9740591324f9a4540be627092
[INFO] running `Command { std: "docker" "start" "-a" "d61e5c78e187c6677fd42a5587ae6d6a34adbdf9740591324f9a4540be627092", kill_on_drop: false }`
[INFO] [stderr]    Compiling jlens v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: patterns aren't allowed in functions without bodies
[INFO] [stdout]    --> src/lib.rs:129:56
[INFO] [stdout]     |
[INFO] [stdout] 129 |     fn select<'a,'b,F>(&self, input: &JsonPath<'a,'b>, mut f: F)
[INFO] [stdout]     |                                                        ^^^^^ help: remove `mut` from the parameter: `f`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(patterns_in_fns_without_body)]` on by default
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #35203 <https://github.com/rust-lang/rust/issues/35203>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: patterns aren't allowed in functions without bodies
[INFO] [stdout]    --> src/lib.rs:129:56
[INFO] [stdout]     |
[INFO] [stdout] 129 |     fn select<'a,'b,F>(&self, input: &JsonPath<'a,'b>, mut f: F)
[INFO] [stdout]     |                                                        ^^^^^ help: remove `mut` from the parameter: `f`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(patterns_in_fns_without_body)]` on by default
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #35203 <https://github.com/rust-lang/rust/issues/35203>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.21s
[INFO] running `Command { std: "docker" "inspect" "d61e5c78e187c6677fd42a5587ae6d6a34adbdf9740591324f9a4540be627092", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d61e5c78e187c6677fd42a5587ae6d6a34adbdf9740591324f9a4540be627092", kill_on_drop: false }`
[INFO] [stdout] d61e5c78e187c6677fd42a5587ae6d6a34adbdf9740591324f9a4540be627092
[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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6a1700715b8fa2abac0ef6dd207996f047001aac00f0026d1f43d182713a7f3b
[INFO] running `Command { std: "docker" "start" "-a" "6a1700715b8fa2abac0ef6dd207996f047001aac00f0026d1f43d182713a7f3b", kill_on_drop: false }`
[INFO] [stderr] warning: patterns aren't allowed in functions without bodies
[INFO] [stderr]    --> src/lib.rs:129:56
[INFO] [stderr]     |
[INFO] [stderr] 129 |     fn select<'a,'b,F>(&self, input: &JsonPath<'a,'b>, mut f: F)
[INFO] [stderr]     |                                                        ^^^^^ help: remove `mut` from the parameter: `f`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(patterns_in_fns_without_body)]` on by default
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #35203 <https://github.com/rust-lang/rust/issues/35203>
[INFO] [stderr] 
[INFO] [stderr] warning: `jlens` (lib) generated 1 warning
[INFO] [stdout] 
[INFO] [stderr] warning: `jlens` (lib test) generated 1 warning (1 duplicate)
[INFO] [stdout] running 4 tests
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/jlens-11b5e194cf1d96c6)
[INFO] [stdout] test test::parent_unique ... ok
[INFO] [stdout] test test::union_unique ... ok
[INFO] [stdout] test test::ascend_unique ... ok
[INFO] [stdout] test test::match_null ... 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]    Doc-tests jlens
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 20) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.58s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "6a1700715b8fa2abac0ef6dd207996f047001aac00f0026d1f43d182713a7f3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a1700715b8fa2abac0ef6dd207996f047001aac00f0026d1f43d182713a7f3b", kill_on_drop: false }`
[INFO] [stdout] 6a1700715b8fa2abac0ef6dd207996f047001aac00f0026d1f43d182713a7f3b