[INFO] fetching crate pagebreak 0.9.2...
[INFO] checking pagebreak-0.9.2 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate pagebreak 0.9.2 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate pagebreak 0.9.2
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate pagebreak 0.9.2
[INFO] tweaked toml for crates.io crate pagebreak 0.9.2 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate pagebreak 0.9.2 on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate pagebreak 0.9.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5c4f02313a0808fa46125b0e8b699b929054bf731576078ace9ab7439b8d6a6a
[INFO] running `Command { std: "docker" "start" "-a" "5c4f02313a0808fa46125b0e8b699b929054bf731576078ace9ab7439b8d6a6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5c4f02313a0808fa46125b0e8b699b929054bf731576078ace9ab7439b8d6a6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c4f02313a0808fa46125b0e8b699b929054bf731576078ace9ab7439b8d6a6a", kill_on_drop: false }`
[INFO] [stdout] 5c4f02313a0808fa46125b0e8b699b929054bf731576078ace9ab7439b8d6a6a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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 -Dunmustuse_in_always_ok" "-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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9b9ac2eae70a185d3d3fc5a1c9dd9d718477cd32d49662148b98cfccdddc17b0
[INFO] running `Command { std: "docker" "start" "-a" "9b9ac2eae70a185d3d3fc5a1c9dd9d718477cd32d49662148b98cfccdddc17b0", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling syn v1.0.75
[INFO] [stderr]    Compiling libc v0.2.101
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling siphasher v0.3.6
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]     Checking instant v0.1.12
[INFO] [stderr]     Checking lock_api v0.4.5
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]     Checking phf_shared v0.8.0
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking new_debug_unreachable v1.0.4
[INFO] [stderr]     Checking mac v0.1.1
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[INFO] [stderr]     Checking bstr v0.2.16
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[INFO] [stderr]    Compiling serde_json v1.0.67
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[INFO] [stderr]    Compiling proc-macro-error v1.0.4
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[INFO] [stderr]    Compiling cssparser v0.27.2
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[INFO] [stderr]    Compiling derive_more v0.99.16
[INFO] [stderr]    Compiling thiserror-impl v1.0.28
[INFO] [stderr]    Compiling ctor v0.1.21
[INFO] [stderr]    Compiling inventory-impl v0.1.11
[INFO] [stderr]    Compiling typed-builder v0.7.1
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]    Compiling ghost v0.1.2
[INFO] [stderr]    Compiling sealed v0.3.0
[INFO] [stderr]    Compiling cucumber-codegen v0.10.2
[INFO] [stderr]     Checking phf v0.8.0
[INFO] [stderr]     Checking thiserror v1.0.28
[INFO] [stderr]     Checking structopt v0.3.25
[INFO] [stderr]     Checking kuchiki v0.8.1
[INFO] [stderr]     Checking futures-executor v0.3.17
[INFO] [stderr]     Checking pagebreak v0.9.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking futures v0.3.17
[INFO] [stdout] warning: field `code` is never read
[INFO] [stdout]   --> src/errors.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout]  8 | pub struct PageError {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 11 |     pub code: PageErrorCode,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling gherkin_rust v0.10.1
[INFO] [stderr]     Checking cucumber v0.10.2
[INFO] [stdout] error: this type will no longer be must used: Result<PagebreakWorld, Infallible>
[INFO] [stdout]   --> tests/cucumber.rs:97:48
[INFO] [stdout]    |
[INFO] [stdout] 97 |       async fn new() -> Result<Self, Infallible> {
[INFO] [stdout]    |  ________________________________________________^
[INFO] [stdout] 98 | |         Ok(Self { tmp_dir: None })
[INFO] [stdout] 99 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PagebreakWorld, Infallible>
[INFO] [stdout]   --> tests/cucumber.rs:98:9
[INFO] [stdout]    |
[INFO] [stdout] 98 |         Ok(Self { tmp_dir: None })
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> tests/steps/step_definitions.rs:13:1
[INFO] [stdout]    |
[INFO] [stdout] 13 | #[given(regex = "^I have an? (?:\"|')(.*)(?:\"|') file with the content:$")]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the attribute macro `given` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> tests/steps/step_definitions.rs:23:1
[INFO] [stdout]    |
[INFO] [stdout] 23 | #[given(regex = "^I have an? (?:\"|')(.*)(?:\"|') file with the body:$")]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the attribute macro `given` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> tests/steps/step_definitions.rs:54:1
[INFO] [stdout]    |
[INFO] [stdout] 54 | #[then(regex = "^I should see (?:\"|')(.*)(?:\"|') in (?:\"|')(.*)(?:\"|')$")]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the attribute macro `then` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> tests/steps/step_definitions.rs:60:1
[INFO] [stdout]    |
[INFO] [stdout] 60 | #[then(regex = "^I should not see (?:\"|')(.*)(?:\"|') in (?:\"|')(.*)(?:\"|')$")]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the attribute macro `then` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> tests/steps/step_definitions.rs:66:1
[INFO] [stdout]    |
[INFO] [stdout] 66 | #[then(regex = "^I should see the file (?:\"|')(.*)(?:\"|')$")]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the attribute macro `then` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> tests/steps/step_definitions.rs:71:1
[INFO] [stdout]    |
[INFO] [stdout] 71 | #[then(regex = "^I should not see the file (?:\"|')(.*)(?:\"|')$")]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the attribute macro `then` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> tests/steps/step_definitions.rs:76:1
[INFO] [stdout]    |
[INFO] [stdout] 76 | #[then(regex = "^I should see a selector (?:\"|')(.*)(?:\"|') in (?:\"|')(\\S*)(?:\"|')$")]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the attribute macro `then` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> tests/steps/step_definitions.rs:83:1
[INFO] [stdout]    |
[INFO] [stdout] 83 | / #[then(
[INFO] [stdout] 84 | |     regex = "^I should see a selector (?:\"|')(.*)(?:\"|') in (?:\"|')(.*)(?:\"|') with the attributes:$"
[INFO] [stdout] 85 | | )]
[INFO] [stdout]    | |__^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the attribute macro `then` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `pagebreak` (test "cucumber") due to 10 previous errors
[INFO] running `Command { std: "docker" "inspect" "9b9ac2eae70a185d3d3fc5a1c9dd9d718477cd32d49662148b98cfccdddc17b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b9ac2eae70a185d3d3fc5a1c9dd9d718477cd32d49662148b98cfccdddc17b0", kill_on_drop: false }`
[INFO] [stdout] 9b9ac2eae70a185d3d3fc5a1c9dd9d718477cd32d49662148b98cfccdddc17b0
