[INFO] fetching crate bucket 1.0.0...
[INFO] testing bucket-1.0.0 against master#2fd6efc32704647e64d3d646d21c4c68eae100e4 for pr-149852-1
[INFO] extracting crate bucket 1.0.0 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate bucket 1.0.0
[INFO] finished tweaking crates.io crate bucket 1.0.0
[INFO] tweaked toml for crates.io crate bucket 1.0.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate bucket 1.0.0 on toolchain 2fd6efc32704647e64d3d646d21c4c68eae100e4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 1 package to latest compatible version
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dafae330cd96b6a1e9975d17c4406c865b6b3ab25cc02369ae5a7f0f4ca8f89a
[INFO] running `Command { std: "docker" "start" "-a" "dafae330cd96b6a1e9975d17c4406c865b6b3ab25cc02369ae5a7f0f4ca8f89a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dafae330cd96b6a1e9975d17c4406c865b6b3ab25cc02369ae5a7f0f4ca8f89a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dafae330cd96b6a1e9975d17c4406c865b6b3ab25cc02369ae5a7f0f4ca8f89a", kill_on_drop: false }`
[INFO] [stdout] dafae330cd96b6a1e9975d17c4406c865b6b3ab25cc02369ae5a7f0f4ca8f89a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "RUSTDOCFLAGS=--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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6113e30d76f9cb61e3dc70b00a8d25176a48406536912d3e259abd3384e25fb1
[INFO] running `Command { std: "docker" "start" "-a" "6113e30d76f9cb61e3dc70b00a8d25176a48406536912d3e259abd3384e25fb1", kill_on_drop: false }`
[INFO] [stderr]    Compiling bucket v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.33s
[INFO] running `Command { std: "docker" "inspect" "6113e30d76f9cb61e3dc70b00a8d25176a48406536912d3e259abd3384e25fb1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6113e30d76f9cb61e3dc70b00a8d25176a48406536912d3e259abd3384e25fb1", kill_on_drop: false }`
[INFO] [stdout] 6113e30d76f9cb61e3dc70b00a8d25176a48406536912d3e259abd3384e25fb1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "RUSTDOCFLAGS=--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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a56d0342c2f9f21ad931547fddcdc340ddda76d15a0a8a92f0b884c93b014b2c
[INFO] running `Command { std: "docker" "start" "-a" "a56d0342c2f9f21ad931547fddcdc340ddda76d15a0a8a92f0b884c93b014b2c", kill_on_drop: false }`
[INFO] [stderr]    Compiling bucket v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.37s
[INFO] running `Command { std: "docker" "inspect" "a56d0342c2f9f21ad931547fddcdc340ddda76d15a0a8a92f0b884c93b014b2c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a56d0342c2f9f21ad931547fddcdc340ddda76d15a0a8a92f0b884c93b014b2c", kill_on_drop: false }`
[INFO] [stdout] a56d0342c2f9f21ad931547fddcdc340ddda76d15a0a8a92f0b884c93b014b2c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "RUSTDOCFLAGS=--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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ab532d6fa0fc84957dbb7a99196e78f708458e3ce6b8e850ce090641fa886186
[INFO] running `Command { std: "docker" "start" "-a" "ab532d6fa0fc84957dbb7a99196e78f708458e3ce6b8e850ce090641fa886186", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/bucket.rs (/opt/rustwide/target/debug/deps/bucket-1bb812b6815a3adc)
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test tests::filling ... ok
[INFO] [stdout] test tests::construction ... ok
[INFO] [stdout] test tests::peek_ref_mut ... ok
[INFO] [stdout] test tests::peek_ref ... ok
[INFO] [stdout] test tests::default_construction ... ok
[INFO] [stdout] test tests::vacating_non_primitive ... ok
[INFO] [stdout] test tests::vacating_primitive ... ok
[INFO] [stdout] test tests::empty_exception ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests bucket
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/bucket.rs - Bucket<T>::vacate (line 35) ... FAILED
[INFO] [stdout] test src/bucket.rs - Bucket<T>::peek_ref (line 60) ... FAILED
[INFO] [stdout] test src/bucket.rs - Bucket<T>::fill (line 96) ... ok
[INFO] [stdout] test src/bucket.rs - Bucket<T>::peek_mut (line 77) ... ok
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/bucket.rs - Bucket<T>::vacate (line 35) stdout ----
[INFO] [stdout] error[E0282]: type annotations needed for `Bucket<_>`
[INFO] [stdout]   --> src/bucket.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 42 | let bucket = Bucket::default();
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 43 | assert!(bucket.vacate().is_none());
[INFO] [stdout]    |         --------------- type must be known at this point
[INFO] [stdout]    |
[INFO] [stdout] help: consider giving `bucket` an explicit type, where the type for type parameter `T` is specified
[INFO] [stdout]    |
[INFO] [stdout] 42 | let bucket: Bucket<T> = Bucket::default();
[INFO] [stdout]    |           +++++++++++
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0282`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/bucket.rs - Bucket<T>::peek_ref (line 60) stdout ----
[INFO] [stdout] error[E0277]: `Option<&{integer}>` doesn't implement `std::fmt::Display`
[INFO] [stdout]   --> src/bucket.rs:65:16
[INFO] [stdout]    |
[INFO] [stdout] 65 | println!("{}", bucket.peek_ref());
[INFO] [stdout]    |           --   ^^^^^^^^^^^^^^^^^ `Option<&{integer}>` cannot be formatted with the default formatter
[INFO] [stdout]    |           |
[INFO] [stdout]    |           required by this formatting parameter
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `std::fmt::Display` is not implemented for `Option<&{integer}>`
[INFO] [stdout]    = note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead
[INFO] [stdout]    = note: this error originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/bucket.rs - Bucket<T>::peek_ref (line 60)
[INFO] [stdout]     src/bucket.rs - Bucket<T>::vacate (line 35)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 2 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.29s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ab532d6fa0fc84957dbb7a99196e78f708458e3ce6b8e850ce090641fa886186", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab532d6fa0fc84957dbb7a99196e78f708458e3ce6b8e850ce090641fa886186", kill_on_drop: false }`
[INFO] [stdout] ab532d6fa0fc84957dbb7a99196e78f708458e3ce6b8e850ce090641fa886186
