[INFO] fetching crate optional 0.5.0...
[INFO] testing optional-0.5.0 against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] extracting crate optional 0.5.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate optional 0.5.0 on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate optional 0.5.0
[INFO] finished tweaking crates.io crate optional 0.5.0
[INFO] tweaked toml for crates.io crate optional 0.5.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bencher v0.1.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", 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] 0cc8b6279202da4f7db06e14cea4207d72271314578dc68bf9347bf556a2f1a4
[INFO] running `Command { std: "docker" "start" "-a" "0cc8b6279202da4f7db06e14cea4207d72271314578dc68bf9347bf556a2f1a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0cc8b6279202da4f7db06e14cea4207d72271314578dc68bf9347bf556a2f1a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0cc8b6279202da4f7db06e14cea4207d72271314578dc68bf9347bf556a2f1a4", kill_on_drop: false }`
[INFO] [stdout] 0cc8b6279202da4f7db06e14cea4207d72271314578dc68bf9347bf556a2f1a4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=forbid" "-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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0c9c7bad4c06b79ac0296f2e6e6963bbcfe964a3b6a918744acfd711ef1c482c
[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" "0c9c7bad4c06b79ac0296f2e6e6963bbcfe964a3b6a918744acfd711ef1c482c", kill_on_drop: false }`
[INFO] [stderr]    Compiling optional v0.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `#[inline]` is ignored on function prototypes
[INFO] [stdout]     --> src/lib.rs:1033:5
[INFO] [stdout]      |
[INFO] [stdout] 1033 |     #[inline]
[INFO] [stdout]      |     ^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[inline]` is ignored on function prototypes
[INFO] [stdout]     --> src/lib.rs:1117:5
[INFO] [stdout]      |
[INFO] [stdout] 1117 |     #[inline]
[INFO] [stdout]      |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.54s
[INFO] running `Command { std: "docker" "inspect" "0c9c7bad4c06b79ac0296f2e6e6963bbcfe964a3b6a918744acfd711ef1c482c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c9c7bad4c06b79ac0296f2e6e6963bbcfe964a3b6a918744acfd711ef1c482c", kill_on_drop: false }`
[INFO] [stdout] 0c9c7bad4c06b79ac0296f2e6e6963bbcfe964a3b6a918744acfd711ef1c482c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=forbid" "-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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9152f0e4a0ec702228cdba27a630838f43363faf69a5c21db13b036d5c5dd7ed
[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" "9152f0e4a0ec702228cdba27a630838f43363faf69a5c21db13b036d5c5dd7ed", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling bencher v0.1.5
[INFO] [stdout] warning: `#[inline]` is ignored on function prototypes
[INFO] [stdout]     --> src/lib.rs:1033:5
[INFO] [stdout]      |
[INFO] [stdout] 1033 |     #[inline]
[INFO] [stdout]      |     ^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[inline]` is ignored on function prototypes
[INFO] [stdout]     --> src/lib.rs:1117:5
[INFO] [stdout]      |
[INFO] [stdout] 1117 |     #[inline]
[INFO] [stdout]      |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling serde_json v1.0.71
[INFO] [stderr]    Compiling optional v0.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `#[inline]` is ignored on function prototypes
[INFO] [stdout]     --> src/lib.rs:1033:5
[INFO] [stdout]      |
[INFO] [stdout] 1033 |     #[inline]
[INFO] [stdout]      |     ^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[inline]` is ignored on function prototypes
[INFO] [stdout]     --> src/lib.rs:1117:5
[INFO] [stdout]      |
[INFO] [stdout] 1117 |     #[inline]
[INFO] [stdout]      |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 11.99s
[INFO] running `Command { std: "docker" "inspect" "9152f0e4a0ec702228cdba27a630838f43363faf69a5c21db13b036d5c5dd7ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9152f0e4a0ec702228cdba27a630838f43363faf69a5c21db13b036d5c5dd7ed", kill_on_drop: false }`
[INFO] [stdout] 9152f0e4a0ec702228cdba27a630838f43363faf69a5c21db13b036d5c5dd7ed
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=forbid" "-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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "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] 69583e027d76431986b5f88a5fb4eb22ba4e9f925a73ec75c3f664552e58f081
[INFO] running `Command { std: "docker" "start" "-a" "69583e027d76431986b5f88a5fb4eb22ba4e9f925a73ec75c3f664552e58f081", kill_on_drop: false }`
[INFO] [stderr] warning: `#[inline]` is ignored on function prototypes
[INFO] [stderr]     --> src/lib.rs:1033:5
[INFO] [stderr]      |
[INFO] [stderr] 1033 |     #[inline]
[INFO] [stderr]      |     ^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(unused_attributes)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `#[inline]` is ignored on function prototypes
[INFO] [stderr]     --> src/lib.rs:1117:5
[INFO] [stderr]      |
[INFO] [stderr] 1117 |     #[inline]
[INFO] [stderr]      |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `optional` (lib) generated 2 warnings
[INFO] [stderr] warning: `optional` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/optional-f2b004ccd051a19e)
[INFO] [stderr]      Running tests/optbool.rs (/opt/rustwide/target/debug/deps/optbool-ee19336fa9271463)
[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] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test deref_to_option ... ok
[INFO] [stdout] test into_option_bool ... ok
[INFO] [stdout] test test_eq_ne ... ok
[INFO] [stdout] test test_bool_map ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/optioned.rs (/opt/rustwide/target/debug/deps/optioned-70edc20407d92353)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test optioned_is_some_or_none ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests optional
[INFO] [stdout] 
[INFO] [stdout] running 61 tests
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type lib --crate-name optional --test /opt/rustwide/workdir/src/lib.rs -L dependency=/opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bencher=/opt/rustwide/target/debug/deps/libbencher-608e8d29dafce657.rlib --extern optional=/opt/rustwide/target/debug/deps/liboptional-4e2de755f6f58533.rlib --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-f8b3ebe7c359039d.rlib -C embed-bitcode=no --error-format human` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "69583e027d76431986b5f88a5fb4eb22ba4e9f925a73ec75c3f664552e58f081", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "69583e027d76431986b5f88a5fb4eb22ba4e9f925a73ec75c3f664552e58f081", kill_on_drop: false }`
[INFO] [stdout] 69583e027d76431986b5f88a5fb4eb22ba4e9f925a73ec75c3f664552e58f081