[INFO] fetching crate tack 0.1.1-alpha...
[INFO] testing tack-0.1.1-alpha against 1.69.0 for beta-1.70-1
[INFO] extracting crate tack 0.1.1-alpha into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate tack 0.1.1-alpha on toolchain 1.69.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tack 0.1.1-alpha
[INFO] finished tweaking crates.io crate tack 0.1.1-alpha
[INFO] tweaked toml for crates.io crate tack 0.1.1-alpha written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" __CARGO_TEST_CHANNEL_OVERRIDE_DO_NOT_USE_THIS="nightly" "/workspace/cargo-home/bin/cargo" "+1.69.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9ce8073158a1d810ef4183911b260d643278e0482f7acae0d2eb7ad42ae6b12d
[INFO] running `Command { std: "docker" "start" "-a" "9ce8073158a1d810ef4183911b260d643278e0482f7acae0d2eb7ad42ae6b12d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9ce8073158a1d810ef4183911b260d643278e0482f7acae0d2eb7ad42ae6b12d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ce8073158a1d810ef4183911b260d643278e0482f7acae0d2eb7ad42ae6b12d", kill_on_drop: false }`
[INFO] [stdout] 9ce8073158a1d810ef4183911b260d643278e0482f7acae0d2eb7ad42ae6b12d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e9db14eaa3163ec8a6618b10f29fea6cc4c5299914e6991d972dcc5f239af813
[INFO] running `Command { std: "docker" "start" "-a" "e9db14eaa3163ec8a6618b10f29fea6cc4c5299914e6991d972dcc5f239af813", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling tack v0.1.1-alpha (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `valid_braces` is never used
[INFO] [stdout]   --> src/lib.rs:79:4
[INFO] [stdout]    |
[INFO] [stdout] 79 | fn valid_braces<'a>(s: &'a str) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.33s
[INFO] running `Command { std: "docker" "inspect" "e9db14eaa3163ec8a6618b10f29fea6cc4c5299914e6991d972dcc5f239af813", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9db14eaa3163ec8a6618b10f29fea6cc4c5299914e6991d972dcc5f239af813", kill_on_drop: false }`
[INFO] [stdout] e9db14eaa3163ec8a6618b10f29fea6cc4c5299914e6991d972dcc5f239af813
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 934767598a036d3bf8d888af0e1a038150a3317d6695e9d71deb6e82a6354392
[INFO] running `Command { std: "docker" "start" "-a" "934767598a036d3bf8d888af0e1a038150a3317d6695e9d71deb6e82a6354392", kill_on_drop: false }`
[INFO] [stderr]    Compiling tack v0.1.1-alpha (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `valid_braces` is never used
[INFO] [stdout]   --> src/lib.rs:79:4
[INFO] [stdout]    |
[INFO] [stdout] 79 | fn valid_braces<'a>(s: &'a str) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.37s
[INFO] running `Command { std: "docker" "inspect" "934767598a036d3bf8d888af0e1a038150a3317d6695e9d71deb6e82a6354392", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "934767598a036d3bf8d888af0e1a038150a3317d6695e9d71deb6e82a6354392", kill_on_drop: false }`
[INFO] [stdout] 934767598a036d3bf8d888af0e1a038150a3317d6695e9d71deb6e82a6354392
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 49ea574db9ec073a6f92e80c6c280e1e3dfe90201b675c7937176311fede2c4d
[INFO] running `Command { std: "docker" "start" "-a" "49ea574db9ec073a6f92e80c6c280e1e3dfe90201b675c7937176311fede2c4d", kill_on_drop: false }`
[INFO] [stderr] warning: function `valid_braces` is never used
[INFO] [stderr]   --> src/lib.rs:79:4
[INFO] [stderr]    |
[INFO] [stderr] 79 | fn valid_braces<'a>(s: &'a str) -> bool {
[INFO] [stderr]    |    ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `tack` (lib) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/tack-7c923c3999eaf1f4)
[INFO] [stdout] 
[INFO] [stdout] running 13 tests
[INFO] [stdout] test tests::html_body_tag ... ok
[INFO] [stdout] test tests::html_html_tag ... ok
[INFO] [stdout] test tests::html_value_flex ... ok
[INFO] [stdout] test tests::html_main_tag ... ok
[INFO] [stdout] test tests::html_value_int ... ok
[INFO] [stdout] test tests::html_value_pct ... ok
[INFO] [stdout] test tests::one_brace_pair ... ok
[INFO] [stdout] test tests::one_closed_brace ... ok
[INFO] [stdout] test tests::one_brace_pair_with_word ... ok
[INFO] [stdout] test tests::one_open_brace ... ok
[INFO] [stdout] test tests::two_brace_pairs ... ok
[INFO] [stdout] test tests::two_closed_braces ... ok
[INFO] [stdout] test tests::two_open_braces ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 13 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests tack
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - coloured_html (line 10) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - coloured_html (line 10) stdout ----
[INFO] [stdout] error: expected expression, found `let` statement
[INFO] [stdout]  --> src/lib.rs:11:10
[INFO] [stdout]   |
[INFO] [stdout] 3 | let s =  let a = "
[INFO] [stdout]   |          ^^^
[INFO] [stdout] 
[INFO] [stdout] error: expected expression, found statement (`let`)
[INFO] [stdout]  --> src/lib.rs:11:10
[INFO] [stdout]   |
[INFO] [stdout] 3 |   let s =  let a = "
[INFO] [stdout]   |  __________^
[INFO] [stdout] 4 | | body {
[INFO] [stdout] 5 | |     display: flex;
[INFO] [stdout] 6 | |     min-height: 100%;
[INFO] [stdout] 7 | | }".to_string();
[INFO] [stdout]   | |______________^
[INFO] [stdout]   |
[INFO] [stdout]   = note: variable declaration using `let` is a statement
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `coloured_html` in this scope
[INFO] [stdout]  --> src/lib.rs:16:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | coloured_html(s);
[INFO] [stdout]   | ^^^^^^^^^^^^^ not found in this scope
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing this function
[INFO] [stdout]   |
[INFO] [stdout] 2 | use tack::coloured_html;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: `let` expressions in this position are unstable
[INFO] [stdout]  --> src/lib.rs:11:10
[INFO] [stdout]   |
[INFO] [stdout] 3 |   let s =  let a = "
[INFO] [stdout]   |  __________^
[INFO] [stdout] 4 | | body {
[INFO] [stdout] 5 | |     display: flex;
[INFO] [stdout] 6 | |     min-height: 100%;
[INFO] [stdout] 7 | | }".to_string();
[INFO] [stdout]   | |______________^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #53667 <https://github.com/rust-lang/rust/issues/53667> for more information
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0425, E0658.
[INFO] [stdout] For more information about an error, try `rustc --explain E0425`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - coloured_html (line 10)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.05s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "49ea574db9ec073a6f92e80c6c280e1e3dfe90201b675c7937176311fede2c4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49ea574db9ec073a6f92e80c6c280e1e3dfe90201b675c7937176311fede2c4d", kill_on_drop: false }`
[INFO] [stdout] 49ea574db9ec073a6f92e80c6c280e1e3dfe90201b675c7937176311fede2c4d
