[INFO] fetching crate serde_jacl 0.3.6...
[INFO] testing serde_jacl-0.3.6 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate serde_jacl 0.3.6 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate serde_jacl 0.3.6 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 serde_jacl 0.3.6
[INFO] finished tweaking crates.io crate serde_jacl 0.3.6
[INFO] tweaked toml for crates.io crate serde_jacl 0.3.6 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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded escape8259 v0.5.1
[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] 94d75a87769fb5164f93b9a5ed73cab9903f834769fa5e07fa913d02edab31c2
[INFO] running `Command { std: "docker" "start" "-a" "94d75a87769fb5164f93b9a5ed73cab9903f834769fa5e07fa913d02edab31c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "94d75a87769fb5164f93b9a5ed73cab9903f834769fa5e07fa913d02edab31c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94d75a87769fb5164f93b9a5ed73cab9903f834769fa5e07fa913d02edab31c2", kill_on_drop: false }`
[INFO] [stdout] 94d75a87769fb5164f93b9a5ed73cab9903f834769fa5e07fa913d02edab31c2
[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] 731bdbb9c17ffa989760a120b2b3a815d1a4d3a0c3c59275d91a4e9716a822fc
[INFO] running `Command { std: "docker" "start" "-a" "731bdbb9c17ffa989760a120b2b3a815d1a4d3a0c3c59275d91a4e9716a822fc", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling escape8259 v0.5.1
[INFO] [stderr]    Compiling serde_jacl v0.3.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]   --> src/ser.rs:23:18
[INFO] [stdout]    |
[INFO] [stdout] 23 |     fn custom<T>(f: T) -> Self
[INFO] [stdout]    |                  ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.34s
[INFO] running `Command { std: "docker" "inspect" "731bdbb9c17ffa989760a120b2b3a815d1a4d3a0c3c59275d91a4e9716a822fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "731bdbb9c17ffa989760a120b2b3a815d1a4d3a0c3c59275d91a4e9716a822fc", kill_on_drop: false }`
[INFO] [stdout] 731bdbb9c17ffa989760a120b2b3a815d1a4d3a0c3c59275d91a4e9716a822fc
[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] 402ef192db4f392fc6dbcb62fe7b95ee1e6d23f362202e66505e1081afb076fa
[INFO] running `Command { std: "docker" "start" "-a" "402ef192db4f392fc6dbcb62fe7b95ee1e6d23f362202e66505e1081afb076fa", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_jacl v0.3.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]   --> src/ser.rs:23:18
[INFO] [stdout]    |
[INFO] [stdout] 23 |     fn custom<T>(f: T) -> Self
[INFO] [stdout]    |                  ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]   --> src/ser.rs:23:18
[INFO] [stdout]    |
[INFO] [stdout] 23 |     fn custom<T>(f: T) -> Self
[INFO] [stdout]    |                  ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.91s
[INFO] running `Command { std: "docker" "inspect" "402ef192db4f392fc6dbcb62fe7b95ee1e6d23f362202e66505e1081afb076fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "402ef192db4f392fc6dbcb62fe7b95ee1e6d23f362202e66505e1081afb076fa", kill_on_drop: false }`
[INFO] [stdout] 402ef192db4f392fc6dbcb62fe7b95ee1e6d23f362202e66505e1081afb076fa
[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] 980bbbd6d42206def33056cd65d2016fe3972ce7d9fa4fdc47ae4ed81471b66a
[INFO] running `Command { std: "docker" "start" "-a" "980bbbd6d42206def33056cd65d2016fe3972ce7d9fa4fdc47ae4ed81471b66a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused variable: `f`
[INFO] [stderr]   --> src/ser.rs:23:18
[INFO] [stderr]    |
[INFO] [stderr] 23 |     fn custom<T>(f: T) -> Self
[INFO] [stderr]    |                  ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `serde_jacl` (lib) generated 1 warning
[INFO] [stderr] warning: `serde_jacl` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/serde_jacl-80a6241c3e2bb35a)
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test de::test_err ... ok
[INFO] [stdout] test ser::test_struct ... ok
[INFO] [stdout] test de::test_comments ... ok
[INFO] [stdout] test structs::test_number ... ok
[INFO] [stdout] test structs::test_literal ... ok
[INFO] [stdout] test de::test_vec ... ok
[INFO] [stdout] test de::test_literals ... ok
[INFO] [stdout] test de::test_struct ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests serde_jacl
[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" "980bbbd6d42206def33056cd65d2016fe3972ce7d9fa4fdc47ae4ed81471b66a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "980bbbd6d42206def33056cd65d2016fe3972ce7d9fa4fdc47ae4ed81471b66a", kill_on_drop: false }`
[INFO] [stdout] 980bbbd6d42206def33056cd65d2016fe3972ce7d9fa4fdc47ae4ed81471b66a