[INFO] fetching crate crumble 0.10.2...
[INFO] testing crumble-0.10.2 against try#ce59db7a1b1b012fb2793c4641c1bdecad7a128b for pr-85530
[INFO] extracting crate crumble 0.10.2 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate crumble 0.10.2 on toolchain ce59db7a1b1b012fb2793c4641c1bdecad7a128b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate crumble 0.10.2
[INFO] finished tweaking crates.io crate crumble 0.10.2
[INFO] tweaked toml for crates.io crate crumble 0.10.2 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f6de1a7248b3774c207f3acdd72afbbba72ef3f7b34d1679ceeac4c278f576f8
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f6de1a7248b3774c207f3acdd72afbbba72ef3f7b34d1679ceeac4c278f576f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f6de1a7248b3774c207f3acdd72afbbba72ef3f7b34d1679ceeac4c278f576f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6de1a7248b3774c207f3acdd72afbbba72ef3f7b34d1679ceeac4c278f576f8", kill_on_drop: false }`
[INFO] [stdout] f6de1a7248b3774c207f3acdd72afbbba72ef3f7b34d1679ceeac4c278f576f8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fd912a3cbf83fd2ba914f5fe4aba2ac8880537530ca41e044d5c1f3f637293f0
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "fd912a3cbf83fd2ba914f5fe4aba2ac8880537530ca41e044d5c1f3f637293f0", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling base64 v0.10.1
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling crumble v0.10.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.05s
[INFO] running `Command { std: "docker" "inspect" "fd912a3cbf83fd2ba914f5fe4aba2ac8880537530ca41e044d5c1f3f637293f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd912a3cbf83fd2ba914f5fe4aba2ac8880537530ca41e044d5c1f3f637293f0", kill_on_drop: false }`
[INFO] [stdout] fd912a3cbf83fd2ba914f5fe4aba2ac8880537530ca41e044d5c1f3f637293f0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 5f533efa2ca520d0ab2cb752e26464f19033f100a15daf0025c8c6d01b240564
[INFO] running `Command { std: "docker" "start" "-a" "5f533efa2ca520d0ab2cb752e26464f19033f100a15daf0025c8c6d01b240564", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling crumble v0.10.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `email`
[INFO] [stdout]    --> src/tests.rs:635:9
[INFO] [stdout]     |
[INFO] [stdout] 635 |     let email = Message::new(&message);
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_email`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `prepare_gmail`
[INFO] [stdout]   --> src/tests.rs:37:4
[INFO] [stdout]    |
[INFO] [stdout] 37 | fn prepare_gmail() -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.35s
[INFO] running `Command { std: "docker" "inspect" "5f533efa2ca520d0ab2cb752e26464f19033f100a15daf0025c8c6d01b240564", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f533efa2ca520d0ab2cb752e26464f19033f100a15daf0025c8c6d01b240564", kill_on_drop: false }`
[INFO] [stdout] 5f533efa2ca520d0ab2cb752e26464f19033f100a15daf0025c8c6d01b240564
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ca6e5905cc9d9f874e9c67c7368f8791730819cdcff053eba30d9c62b973a45c
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "ca6e5905cc9d9f874e9c67c7368f8791730819cdcff053eba30d9c62b973a45c", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `email`
[INFO] [stderr]    --> src/tests.rs:635:9
[INFO] [stderr]     |
[INFO] [stderr] 635 |     let email = Message::new(&message);
[INFO] [stderr]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_email`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `prepare_gmail`
[INFO] [stderr]   --> src/tests.rs:37:4
[INFO] [stderr]    |
[INFO] [stderr] 37 | fn prepare_gmail() -> String {
[INFO] [stderr]    |    ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/crumble-6136b0a7db4ae280)
[INFO] [stdout] running 14 tests
[INFO] [stdout] test tests::empty_string ... ok
[INFO] [stdout] test tests::bad_string ... ok
[INFO] [stdout] test tests::bench_plain ... ok
[INFO] [stdout] test tests::bench_multipart ... ok
[INFO] [stdout] test tests::bench_bandcamp ... ok
[INFO] [stdout] test tests::parse_bandcamp ... ok
[INFO] [stdout] test tests::build_gmail ... ok
[INFO] [stdout] test tests::parse_nested ... ok
[INFO] [stdout] test tests::parse_plain ... ok
[INFO] [stdout] test tests::parse_multipart ... ok
[INFO] [stdout] test tests::parse_pubkey ... ok
[INFO] [stdout] test tests::build_plain ... ok
[INFO] [stdout] test tests::parse_gmail ... ok
[INFO] [stdout] test tests::bench_gmail ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 14 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.05s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests crumble
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 13) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 13) stdout ----
[INFO] [stdout] error[E0425]: cannot find function `load_mime_file` in this scope
[INFO] [stdout]  --> src/lib.rs:15:15
[INFO] [stdout]   |
[INFO] [stdout] 5 | let message = load_mime_file(); // Example! The consumer must have some source of documents
[INFO] [stdout]   |               ^^^^^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]  --> src/lib.rs:16:37
[INFO] [stdout]   |
[INFO] [stdout] 3 |   fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_13_0() {
[INFO] [stdout]   |  ______________________________________-
[INFO] [stdout] 4 | | use crumble::Message;
[INFO] [stdout] 5 | | let message = load_mime_file(); // Example! The consumer must have some source of documents
[INFO] [stdout] 6 | | let message = Message::new(&message)?; // Handle errors
[INFO] [stdout]   | |                                     ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout] 7 | | } _doctest_main_src_lib_rs_13_0() }
[INFO] [stdout]   | |_- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout]   |
[INFO] [stdout]   = help: the trait `FromResidual<Result<Infallible, Box<dyn std::error::Error>>>` is not implemented for `()`
[INFO] [stdout]   = note: required by `from_residual`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0425.
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 13)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.39s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "ca6e5905cc9d9f874e9c67c7368f8791730819cdcff053eba30d9c62b973a45c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca6e5905cc9d9f874e9c67c7368f8791730819cdcff053eba30d9c62b973a45c", kill_on_drop: false }`
[INFO] [stdout] ca6e5905cc9d9f874e9c67c7368f8791730819cdcff053eba30d9c62b973a45c