[INFO] fetching crate overloadable 0.4.1...
[INFO] testing overloadable-0.4.1 against master#b70888601af92f6cdc0364abab3446e418b91d36 for pr-86479
[INFO] extracting crate overloadable 0.4.1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate overloadable 0.4.1 on toolchain b70888601af92f6cdc0364abab3446e418b91d36
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate overloadable 0.4.1
[INFO] finished tweaking crates.io crate overloadable 0.4.1
[INFO] tweaked toml for crates.io crate overloadable 0.4.1 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d4c56448cb134b25e201593d5c4113c015ff94454547f8f1bfd42342ad9c47ae
[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" "d4c56448cb134b25e201593d5c4113c015ff94454547f8f1bfd42342ad9c47ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d4c56448cb134b25e201593d5c4113c015ff94454547f8f1bfd42342ad9c47ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d4c56448cb134b25e201593d5c4113c015ff94454547f8f1bfd42342ad9c47ae", kill_on_drop: false }`
[INFO] [stdout] d4c56448cb134b25e201593d5c4113c015ff94454547f8f1bfd42342ad9c47ae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9cda53d6c0be6c354c64a17f852992931e308d572d87a2e8b824a3f880ed5295
[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" "9cda53d6c0be6c354c64a17f852992931e308d572d87a2e8b824a3f880ed5295", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling overloadable v0.4.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.11s
[INFO] running `Command { std: "docker" "inspect" "9cda53d6c0be6c354c64a17f852992931e308d572d87a2e8b824a3f880ed5295", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9cda53d6c0be6c354c64a17f852992931e308d572d87a2e8b824a3f880ed5295", kill_on_drop: false }`
[INFO] [stdout] 9cda53d6c0be6c354c64a17f852992931e308d572d87a2e8b824a3f880ed5295
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b193e9b09b67cc80aebcb0a4c9df4c62d1cfaa7ac9ec359946913b884dae3b75
[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" "b193e9b09b67cc80aebcb0a4c9df4c62d1cfaa7ac9ec359946913b884dae3b75", kill_on_drop: false }`
[INFO] [stderr]    Compiling overloadable v0.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]   --> tests/default.rs:38:24
[INFO] [stdout]    |
[INFO] [stdout] 38 |     fn(&self) -> usize {1}
[INFO] [stdout]    |                        ^^^ help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `B`
[INFO] [stdout]   --> tests/default.rs:45:5
[INFO] [stdout]    |
[INFO] [stdout] 45 |     B,
[INFO] [stdout]    |     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.56s
[INFO] running `Command { std: "docker" "inspect" "b193e9b09b67cc80aebcb0a4c9df4c62d1cfaa7ac9ec359946913b884dae3b75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b193e9b09b67cc80aebcb0a4c9df4c62d1cfaa7ac9ec359946913b884dae3b75", kill_on_drop: false }`
[INFO] [stdout] b193e9b09b67cc80aebcb0a4c9df4c62d1cfaa7ac9ec359946913b884dae3b75
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "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] 1aa9325bf6115c4ceec49d49e58470845bc925b2a8158b821d461a70f6aa01db
[INFO] running `Command { std: "docker" "start" "-a" "1aa9325bf6115c4ceec49d49e58470845bc925b2a8158b821d461a70f6aa01db", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]   --> tests/default.rs:38:24
[INFO] [stderr]    |
[INFO] [stderr] 38 |     fn(&self) -> usize {1}
[INFO] [stderr]    |                        ^^^ help: remove these braces
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `B`
[INFO] [stderr]   --> tests/default.rs:45:5
[INFO] [stderr]    |
[INFO] [stderr] 45 |     B,
[INFO] [stderr]    |     ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `overloadable` (test "default") generated 2 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/overloadable-6917e8b12c6c8524)
[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] [stderr]      Running tests/default.rs (/opt/rustwide/target/debug/deps/default-9b57998a9a053ed5)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test it_works ... 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 overloadable
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/lib.rs - (line 21) ... ignored
[INFO] [stdout] test src/lib.rs - (line 4) ... ignored
[INFO] [stdout] test src/lib.rs - overloadable_member (line 432) ... FAILED
[INFO] [stdout] test src/lib.rs - overloadable (line 386) ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - overloadable_member (line 432) stdout ----
[INFO] [stdout] error: patterns aren't allowed in functions without bodies
[INFO] [stdout]   --> src/lib.rs:439:8
[INFO] [stdout]    |
[INFO] [stdout] 10 |     fn(mut self, x: isize) {},
[INFO] [stdout]    |        ^^^^^^^^ help: remove `mut` from the parameter: `self`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[deny(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] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - overloadable_member (line 432)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 1 passed; 1 failed; 2 ignored; 0 measured; 0 filtered out; finished in 0.39s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "1aa9325bf6115c4ceec49d49e58470845bc925b2a8158b821d461a70f6aa01db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1aa9325bf6115c4ceec49d49e58470845bc925b2a8158b821d461a70f6aa01db", kill_on_drop: false }`
[INFO] [stdout] 1aa9325bf6115c4ceec49d49e58470845bc925b2a8158b821d461a70f6aa01db