[INFO] fetching crate bucket 1.0.0...
[INFO] testing bucket-1.0.0 against master#1871252fc8bb672d40787e67404e6eaae7059369 for pr-125151
[INFO] extracting crate bucket 1.0.0 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate bucket 1.0.0 on toolchain 1871252fc8bb672d40787e67404e6eaae7059369
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 2 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 683ac0bb3bd4b1b523975ce5d7d4b234b80b3497e97ead749730f91547dc014b
[INFO] running `Command { std: "docker" "start" "-a" "683ac0bb3bd4b1b523975ce5d7d4b234b80b3497e97ead749730f91547dc014b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "683ac0bb3bd4b1b523975ce5d7d4b234b80b3497e97ead749730f91547dc014b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "683ac0bb3bd4b1b523975ce5d7d4b234b80b3497e97ead749730f91547dc014b", kill_on_drop: false }`
[INFO] [stdout] 683ac0bb3bd4b1b523975ce5d7d4b234b80b3497e97ead749730f91547dc014b
[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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5c3f899f97aad28be0a02992746724bdcaf22f0c2f2c47d1c33514b6139da6e1
[INFO] running `Command { std: "docker" "start" "-a" "5c3f899f97aad28be0a02992746724bdcaf22f0c2f2c47d1c33514b6139da6e1", kill_on_drop: false }`
[INFO] [stderr]    Compiling bucket v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] running `Command { std: "docker" "inspect" "5c3f899f97aad28be0a02992746724bdcaf22f0c2f2c47d1c33514b6139da6e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c3f899f97aad28be0a02992746724bdcaf22f0c2f2c47d1c33514b6139da6e1", kill_on_drop: false }`
[INFO] [stdout] 5c3f899f97aad28be0a02992746724bdcaf22f0c2f2c47d1c33514b6139da6e1
[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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c2c2fd3a2112db5f71e25086d0a6852326e1309a0a109f4030e91d18e12bcc8c
[INFO] running `Command { std: "docker" "start" "-a" "c2c2fd3a2112db5f71e25086d0a6852326e1309a0a109f4030e91d18e12bcc8c", kill_on_drop: false }`
[INFO] [stderr]    Compiling bucket v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.30s
[INFO] running `Command { std: "docker" "inspect" "c2c2fd3a2112db5f71e25086d0a6852326e1309a0a109f4030e91d18e12bcc8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c2c2fd3a2112db5f71e25086d0a6852326e1309a0a109f4030e91d18e12bcc8c", kill_on_drop: false }`
[INFO] [stdout] c2c2fd3a2112db5f71e25086d0a6852326e1309a0a109f4030e91d18e12bcc8c
[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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 403e66b920cb3e08e159950be8a7d2cc9a0f6fe8b48f77e2c69fa34039a5b76e
[INFO] running `Command { std: "docker" "start" "-a" "403e66b920cb3e08e159950be8a7d2cc9a0f6fe8b48f77e2c69fa34039a5b76e", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/bucket.rs (/opt/rustwide/target/debug/deps/bucket-167d0d6edfd18f3f)
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test tests::vacating_non_primitive ... ok
[INFO] [stdout] test tests::empty_exception ... ok
[INFO] [stdout] test tests::construction ... ok
[INFO] [stdout] test tests::default_construction ... ok
[INFO] [stdout] test tests::peek_ref_mut ... ok
[INFO] [stdout] test tests::peek_ref ... ok
[INFO] [stdout] test tests::vacating_primitive ... ok
[INFO] [stdout] test tests::filling ... 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>::peek_ref (line 60) ... FAILED
[INFO] [stdout] test src/bucket.rs - Bucket<T>::vacate (line 35) ... 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] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[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] 8 | println!("{}", bucket.peek_ref());
[INFO] [stdout]   |                ^^^^^^^^^^^^^^^^^ `Option<&{integer}>` cannot be formatted with the default formatter
[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] ---- 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] 10 | let bucket = Bucket::default();
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 11 | assert!(bucket.vacate().is_none());  // Returns none, because our bucket is created without any content
[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] 10 | 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] 
[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 0.22s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "403e66b920cb3e08e159950be8a7d2cc9a0f6fe8b48f77e2c69fa34039a5b76e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "403e66b920cb3e08e159950be8a7d2cc9a0f6fe8b48f77e2c69fa34039a5b76e", kill_on_drop: false }`
[INFO] [stdout] 403e66b920cb3e08e159950be8a7d2cc9a0f6fe8b48f77e2c69fa34039a5b76e
[INFO] testing bucket-1.0.0 against try#b642703cf9526da1e72c0b6755753b939a9c6b6d for pr-125151
[INFO] extracting crate bucket 1.0.0 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate bucket 1.0.0 on toolchain b642703cf9526da1e72c0b6755753b939a9c6b6d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 2 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 930442b249d5d51b1ab05bc7002d911686bb2ef787689f578a8e7946ba38108a
[INFO] running `Command { std: "docker" "start" "-a" "930442b249d5d51b1ab05bc7002d911686bb2ef787689f578a8e7946ba38108a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "930442b249d5d51b1ab05bc7002d911686bb2ef787689f578a8e7946ba38108a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "930442b249d5d51b1ab05bc7002d911686bb2ef787689f578a8e7946ba38108a", kill_on_drop: false }`
[INFO] [stdout] 930442b249d5d51b1ab05bc7002d911686bb2ef787689f578a8e7946ba38108a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b27da2818b851e3437d2396cae9db1dbed663bdada67eedab0519e1e0cc565f4
[INFO] running `Command { std: "docker" "start" "-a" "b27da2818b851e3437d2396cae9db1dbed663bdada67eedab0519e1e0cc565f4", kill_on_drop: false }`
[INFO] [stderr]    Compiling bucket v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] running `Command { std: "docker" "inspect" "b27da2818b851e3437d2396cae9db1dbed663bdada67eedab0519e1e0cc565f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b27da2818b851e3437d2396cae9db1dbed663bdada67eedab0519e1e0cc565f4", kill_on_drop: false }`
[INFO] [stdout] b27da2818b851e3437d2396cae9db1dbed663bdada67eedab0519e1e0cc565f4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 099eb419c3bf8e5956dcb8a78fcc687bb57ed3b2192154717ae7fdc1d579982c
[INFO] running `Command { std: "docker" "start" "-a" "099eb419c3bf8e5956dcb8a78fcc687bb57ed3b2192154717ae7fdc1d579982c", kill_on_drop: false }`
[INFO] [stderr]    Compiling bucket v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.26s
[INFO] running `Command { std: "docker" "inspect" "099eb419c3bf8e5956dcb8a78fcc687bb57ed3b2192154717ae7fdc1d579982c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "099eb419c3bf8e5956dcb8a78fcc687bb57ed3b2192154717ae7fdc1d579982c", kill_on_drop: false }`
[INFO] [stdout] 099eb419c3bf8e5956dcb8a78fcc687bb57ed3b2192154717ae7fdc1d579982c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5d5e0fec832066222277c2c09b701d265087bdd1edbc6dc573df9ed349201472
[INFO] running `Command { std: "docker" "start" "-a" "5d5e0fec832066222277c2c09b701d265087bdd1edbc6dc573df9ed349201472", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests src/bucket.rs (/opt/rustwide/target/debug/deps/bucket-167d0d6edfd18f3f)
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test tests::construction ... ok
[INFO] [stdout] test tests::default_construction ... ok
[INFO] [stdout] test tests::empty_exception ... ok
[INFO] [stdout] test tests::peek_ref ... ok
[INFO] [stdout] test tests::filling ... ok
[INFO] [stdout] test tests::peek_ref_mut ... ok
[INFO] [stdout] test tests::vacating_non_primitive ... ok
[INFO] [stdout] test tests::vacating_primitive ... 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 bucket
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/bucket.rs - Bucket<T>::peek_ref (line 60) ... FAILED
[INFO] [stdout] test src/bucket.rs - Bucket<T>::vacate (line 35) ... 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] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[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] 8 | println!("{}", bucket.peek_ref());
[INFO] [stdout]   |                ^^^^^^^^^^^^^^^^^ `Option<&{integer}>` cannot be formatted with the default formatter
[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] ---- 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] 10 | let bucket = Bucket::default();
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 11 | assert!(bucket.vacate().is_none());  // Returns none, because our bucket is created without any content
[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] 10 | 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] 
[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 0.16s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "5d5e0fec832066222277c2c09b701d265087bdd1edbc6dc573df9ed349201472", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d5e0fec832066222277c2c09b701d265087bdd1edbc6dc573df9ed349201472", kill_on_drop: false }`
[INFO] [stdout] 5d5e0fec832066222277c2c09b701d265087bdd1edbc6dc573df9ed349201472
