[INFO] fetching crate display_tree 1.1.2...
[INFO] testing display_tree-1.1.2 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7
[INFO] extracting crate display_tree 1.1.2 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate display_tree 1.1.2
[INFO] finished tweaking crates.io crate display_tree 1.1.2
[INFO] tweaked toml for crates.io crate display_tree 1.1.2 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate display_tree 1.1.2 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 8 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded display_tree_derive v1.0.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3bb3a6548f21ba174edd3e0a86ecfaf93b611905f5711ddff6db859eec811394
[INFO] running `Command { std: "docker" "start" "-a" "3bb3a6548f21ba174edd3e0a86ecfaf93b611905f5711ddff6db859eec811394", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3bb3a6548f21ba174edd3e0a86ecfaf93b611905f5711ddff6db859eec811394", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3bb3a6548f21ba174edd3e0a86ecfaf93b611905f5711ddff6db859eec811394", kill_on_drop: false }`
[INFO] [stdout] 3bb3a6548f21ba174edd3e0a86ecfaf93b611905f5711ddff6db859eec811394
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6c382cbd297691b2ea576b32a5affcefdebaf1e9c8a4364c9f773467ffb06211
[INFO] running `Command { std: "docker" "start" "-a" "6c382cbd297691b2ea576b32a5affcefdebaf1e9c8a4364c9f773467ffb06211", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling display_tree_derive v1.0.3
[INFO] [stderr]    Compiling display_tree v1.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.06s
[INFO] running `Command { std: "docker" "inspect" "6c382cbd297691b2ea576b32a5affcefdebaf1e9c8a4364c9f773467ffb06211", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c382cbd297691b2ea576b32a5affcefdebaf1e9c8a4364c9f773467ffb06211", kill_on_drop: false }`
[INFO] [stdout] 6c382cbd297691b2ea576b32a5affcefdebaf1e9c8a4364c9f773467ffb06211
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 19cae33dca675e961128230cb809efb16dacba4079692bc98169110f0be6c05b
[INFO] running `Command { std: "docker" "start" "-a" "19cae33dca675e961128230cb809efb16dacba4079692bc98169110f0be6c05b", kill_on_drop: false }`
[INFO] [stderr]    Compiling display_tree v1.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `b` is never read
[INFO] [stdout]    --> tests/attrs.rs:140:13
[INFO] [stdout]     |
[INFO] [stdout] 140 |             b: bool,
[INFO] [stdout]     |             ^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary allocation, use `&` instead
[INFO] [stdout]   --> src/to_display_tree_ref.rs:91:20
[INFO] [stdout]    |
[INFO] [stdout] 91 |         assert_eq!(Box::new(Tree).to_display_tree(), &Tree)
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_allocation)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.95s
[INFO] running `Command { std: "docker" "inspect" "19cae33dca675e961128230cb809efb16dacba4079692bc98169110f0be6c05b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19cae33dca675e961128230cb809efb16dacba4079692bc98169110f0be6c05b", kill_on_drop: false }`
[INFO] [stdout] 19cae33dca675e961128230cb809efb16dacba4079692bc98169110f0be6c05b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f650eb954a9ff4e08a447d0f9442e0cfa29a472b84003c646e7af9340e3dad53
[INFO] running `Command { std: "docker" "start" "-a" "f650eb954a9ff4e08a447d0f9442e0cfa29a472b84003c646e7af9340e3dad53", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary allocation, use `&` instead
[INFO] [stderr]   --> src/to_display_tree_ref.rs:91:20
[INFO] [stderr]    |
[INFO] [stderr] 91 |         assert_eq!(Box::new(Tree).to_display_tree(), &Tree)
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_allocation)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `display_tree` (lib test) generated 1 warning
[INFO] [stderr] warning: value assigned to `b` is never read
[INFO] [stderr]    --> tests/attrs.rs:140:13
[INFO] [stderr]     |
[INFO] [stderr] 140 |             b: bool,
[INFO] [stderr]     |             ^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `display_tree` (test "attrs") generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/display_tree-4252508423075889)
[INFO] [stdout] 
[INFO] [stdout] running 17 tests
[INFO] [stdout] test display::tests::background_color ... ok
[INFO] [stdout] test display::tests::faint ... ok
[INFO] [stdout] test display::tests::plain ... ok
[INFO] [stdout] test display::tests::italic ... ok
[INFO] [stdout] test display::tests::strikethrough ... ok
[INFO] [stdout] test display::tests::text_color ... ok
[INFO] [stdout] test display::tests::underline ... ok
[INFO] [stdout] test tests::format ... ok
[INFO] [stdout] test display::tests::bold ... ok
[INFO] [stdout] test tests::writeln ... ok
[INFO] [stdout] test tests::write ... ok
[INFO] [stdout] test to_display_tree_ref::tests::from_box ... ok
[INFO] [stdout] test to_display_tree_ref::tests::from_arc ... ok
[INFO] [stdout] test to_display_tree_ref::tests::from_cow ... ok
[INFO] [stdout] test to_display_tree_ref::tests::from_rc ... ok
[INFO] [stdout] test to_display_tree_ref::tests::from_reference ... ok
[INFO] [stdout] test to_display_tree_ref::tests::from_value ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 17 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 13 tests
[INFO] [stderr]      Running tests/attrs.rs (/opt/rustwide/target/debug/deps/attrs-55960d9369366aa7)
[INFO] [stdout] test field_attr_field_label_no_args_struct ... ok
[INFO] [stdout] test field_attr_field_label_no_args_enum ... ok
[INFO] [stdout] test field_attr_tree_struct ... ok
[INFO] [stdout] test field_attr_field_label_struct ... ok
[INFO] [stdout] test node_attr_node_label_enum ... ok
[INFO] [stdout] test field_attr_ignore_field_enum ... ok
[INFO] [stdout] test field_attr_ignore_field_struct ... ok
[INFO] [stdout] test field_attr_tree_enum ... ok
[INFO] [stdout] test field_attr_node_label_enum ... ok
[INFO] [stdout] test field_attr_tree_self ... ok
[INFO] [stdout] test node_attr_node_label_struct ... ok
[INFO] [stdout] test field_attr_field_label_enum ... ok
[INFO] [stdout] test field_attr_node_label_struct ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 13 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/derive.rs (/opt/rustwide/target/debug/deps/derive-c2eed2ce2a41dbac)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test enum_unit ... ok
[INFO] [stdout] test tuple_struct ... ok
[INFO] [stdout] test enum_unnamed ... ok
[INFO] [stdout] test enum_named ... ok
[INFO] [stdout] test field_struct ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.21s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/style.rs (/opt/rustwide/target/debug/deps/style-25cd33d03e34b9db)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test char_set ... ok
[INFO] [stdout] test indentation ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests display_tree
[INFO] [stdout] 
[INFO] [stdout] running 25 tests
[INFO] [stdout] test src/lib.rs - DisplayTree (line 210) ... ok
[INFO] [stdout] test src/display.rs - display::Style (line 129) ... ok
[INFO] [stdout] test src/display.rs - display::StyleBuilder::char_set (line 399) ... ok
[INFO] [stdout] test src/display.rs - display::CharSet (line 309) ... ok
[INFO] [stdout] test src/lib.rs - format_tree (line 477) ... ok
[INFO] [stdout] test src/display.rs - display::AsTree<'a,T>::new (line 74) ... ok
[INFO] [stdout] test src/lib.rs - DisplayTree (line 186) ... ok
[INFO] [stdout] test src/lib.rs - print_tree (line 302) ... ok
[INFO] [stdout] test src/display.rs - display::AsTree (line 45) ... ok
[INFO] [stdout] test src/lib.rs - DisplayTree (line 198) ... ok
[INFO] [stdout] test src/lib.rs - DisplayTree::fmt (line 242) ... ok
[INFO] [stdout] test src/lib.rs - DisplayTree (line 228) ... ok
[INFO] [stdout] test src/lib.rs - print_tree (line 292) ... ok
[INFO] [stdout] test src/display.rs - display::StyleBuilder::indentation (line 433) ... ok
[INFO] [stdout] test src/display.rs - display::AsTree<'a,T>::with_style (line 94) ... ok
[INFO] [stdout] test src/lib.rs - (line 21) ... ok
[INFO] [stdout] test src/lib.rs - println_tree (line 327) ... ok
[INFO] [stdout] test src/lib.rs - println_tree (line 337) ... ok
[INFO] [stdout] test src/lib.rs - write_tree (line 361) ... ok
[INFO] [stdout] test src/lib.rs - writeln_tree (line 419) ... ok
[INFO] [stdout] test src/display.rs - display::AsTree (line 24) ... ok
[INFO] [stdout] test src/lib.rs - format_tree (line 488) ... ok
[INFO] [stdout] test src/lib.rs - writeln_tree (line 434) ... ok
[INFO] [stdout] test src/lib.rs - write_tree (line 376) ... ok
[INFO] [stdout] test src/lib.rs - DisplayTree (line 101) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 25 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.22s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f650eb954a9ff4e08a447d0f9442e0cfa29a472b84003c646e7af9340e3dad53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f650eb954a9ff4e08a447d0f9442e0cfa29a472b84003c646e7af9340e3dad53", kill_on_drop: false }`
[INFO] [stdout] f650eb954a9ff4e08a447d0f9442e0cfa29a472b84003c646e7af9340e3dad53