[INFO] fetching crate solitaire_cypher 0.1.4...
[INFO] checking solitaire_cypher-0.1.4 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate solitaire_cypher 0.1.4 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate solitaire_cypher 0.1.4
[INFO] finished tweaking crates.io crate solitaire_cypher 0.1.4
[INFO] tweaked toml for crates.io crate solitaire_cypher 0.1.4 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate solitaire_cypher 0.1.4 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 77 packages to latest compatible versions
[INFO] [stderr]       Adding bounded-integer v0.5.8 (available: v0.6.1)
[INFO] [stderr]       Adding rand v0.8.5 (available: v0.9.2)
[INFO] [stderr]       Adding rand_distr v0.4.3 (available: v0.5.1)
[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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 65642a1a224abad9dd7c430b92a96f84079ce366c896610bd4082ac81b7c4320
[INFO] running `Command { std: "docker" "start" "-a" "65642a1a224abad9dd7c430b92a96f84079ce366c896610bd4082ac81b7c4320", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "65642a1a224abad9dd7c430b92a96f84079ce366c896610bd4082ac81b7c4320", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "65642a1a224abad9dd7c430b92a96f84079ce366c896610bd4082ac81b7c4320", kill_on_drop: false }`
[INFO] [stdout] 65642a1a224abad9dd7c430b92a96f84079ce366c896610bd4082ac81b7c4320
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] c2a55c60faf2d5ffe2e8e773739b4af00cc8efc6c85a8186c589bc19538da3ed
[INFO] running `Command { std: "docker" "start" "-a" "c2a55c60faf2d5ffe2e8e773739b4af00cc8efc6c85a8186c589bc19538da3ed", kill_on_drop: false }`
[INFO] [stderr]     Checking is_terminal_polyfill v1.70.2
[INFO] [stderr]     Checking regex-automata v0.4.13
[INFO] [stderr]    Compiling assert_cmd v2.1.1
[INFO] [stderr]     Checking wait-timeout v0.2.1
[INFO] [stderr]     Checking bounded-integer v0.5.8
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking float-cmp v0.10.0
[INFO] [stderr]    Compiling clap_derive v4.5.49
[INFO] [stderr]     Checking anstream v0.6.21
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking clap_builder v4.5.51
[INFO] [stderr]     Checking rand_distr v0.4.3
[INFO] [stderr]     Checking clap v4.5.51
[INFO] [stderr]     Checking regex v1.12.2
[INFO] [stderr]     Checking bstr v1.12.1
[INFO] [stderr]     Checking env_logger v0.10.2
[INFO] [stderr]     Checking predicates v3.1.3
[INFO] [stderr]     Checking pretty_env_logger v0.5.0
[INFO] [stderr]     Checking card_play v0.1.3
[INFO] [stderr]     Checking solitaire_cypher v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<PlainText, Infallible>
[INFO] [stdout]    --> src/lib.rs:93:53
[INFO] [stdout]     |
[INFO] [stdout]  93 |       fn from_str(s: &str) -> Result<Self, Self::Err> {
[INFO] [stdout]     |  _____________________________________________________^
[INFO] [stdout]  94 | |         let mut pt = PlainText(Vec::new());
[INFO] [stdout]  95 | |         for letter in s.to_uppercase().bytes() {
[INFO] [stdout]  96 | |             match UpperLetter::new(letter) {
[INFO] [stdout] ...   |
[INFO] [stdout] 104 | |         Ok(pt)
[INFO] [stdout] 105 | |     }
[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<PlainText, Infallible>
[INFO] [stdout]    --> src/lib.rs:104:9
[INFO] [stdout]     |
[INFO] [stdout] 104 |         Ok(pt)
[INFO] [stdout]     |         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<CypherText, Infallible>
[INFO] [stdout]    --> src/lib.rs:141:53
[INFO] [stdout]     |
[INFO] [stdout] 141 |       fn from_str(s: &str) -> Result<Self, Self::Err> {
[INFO] [stdout]     |  _____________________________________________________^
[INFO] [stdout] 142 | |         let mut ct = CypherText(Vec::new());
[INFO] [stdout] 143 | |         for letter in s.to_uppercase().bytes() {
[INFO] [stdout] 144 | |             match UpperLetter::new(letter) {
[INFO] [stdout] ...   |
[INFO] [stdout] 149 | |         Ok(ct)
[INFO] [stdout] 150 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<CypherText, Infallible>
[INFO] [stdout]    --> src/lib.rs:149:9
[INFO] [stdout]     |
[INFO] [stdout] 149 |         Ok(ct)
[INFO] [stdout]     |         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PlainText, Infallible>
[INFO] [stdout]    --> src/lib.rs:93:53
[INFO] [stdout]     |
[INFO] [stdout]  93 |       fn from_str(s: &str) -> Result<Self, Self::Err> {
[INFO] [stdout]     |  _____________________________________________________^
[INFO] [stdout]  94 | |         let mut pt = PlainText(Vec::new());
[INFO] [stdout]  95 | |         for letter in s.to_uppercase().bytes() {
[INFO] [stdout]  96 | |             match UpperLetter::new(letter) {
[INFO] [stdout] ...   |
[INFO] [stdout] 104 | |         Ok(pt)
[INFO] [stdout] 105 | |     }
[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<PlainText, Infallible>
[INFO] [stdout]    --> src/lib.rs:104:9
[INFO] [stdout]     |
[INFO] [stdout] 104 |         Ok(pt)
[INFO] [stdout]     |         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<CypherText, Infallible>
[INFO] [stdout]    --> src/lib.rs:141:53
[INFO] [stdout]     |
[INFO] [stdout] 141 |       fn from_str(s: &str) -> Result<Self, Self::Err> {
[INFO] [stdout]     |  _____________________________________________________^
[INFO] [stdout] 142 | |         let mut ct = CypherText(Vec::new());
[INFO] [stdout] 143 | |         for letter in s.to_uppercase().bytes() {
[INFO] [stdout] 144 | |             match UpperLetter::new(letter) {
[INFO] [stdout] ...   |
[INFO] [stdout] 149 | |         Ok(ct)
[INFO] [stdout] 150 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<CypherText, Infallible>
[INFO] [stdout]    --> src/lib.rs:149:9
[INFO] [stdout]     |
[INFO] [stdout] 149 |         Ok(ct)
[INFO] [stdout]     |         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<KeyStream, Infallible>
[INFO] [stdout]    --> src/lib.rs:276:53
[INFO] [stdout]     |
[INFO] [stdout] 276 |       fn from_str(s: &str) -> Result<Self, Self::Err> {
[INFO] [stdout]     |  _____________________________________________________^
[INFO] [stdout] 277 | |         let mut ks = KeyStream(Vec::new());
[INFO] [stdout] 278 | |         for letter in s.to_uppercase().bytes() {
[INFO] [stdout] 279 | |             match UpperLetter::new(letter) {
[INFO] [stdout] ...   |
[INFO] [stdout] 284 | |         Ok(ks)
[INFO] [stdout] 285 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<KeyStream, Infallible>
[INFO] [stdout]    --> src/lib.rs:284:9
[INFO] [stdout]     |
[INFO] [stdout] 284 |         Ok(ks)
[INFO] [stdout]     |         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<KeyStream, Infallible>
[INFO] [stdout]    --> src/lib.rs:276:53
[INFO] [stdout]     |
[INFO] [stdout] 276 |       fn from_str(s: &str) -> Result<Self, Self::Err> {
[INFO] [stdout]     |  _____________________________________________________^
[INFO] [stdout] 277 | |         let mut ks = KeyStream(Vec::new());
[INFO] [stdout] 278 | |         for letter in s.to_uppercase().bytes() {
[INFO] [stdout] 279 | |             match UpperLetter::new(letter) {
[INFO] [stdout] ...   |
[INFO] [stdout] 284 | |         Ok(ks)
[INFO] [stdout] 285 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<KeyStream, Infallible>
[INFO] [stdout]    --> src/lib.rs:284:9
[INFO] [stdout]     |
[INFO] [stdout] 284 |         Ok(ks)
[INFO] [stdout]     |         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PlainText, Infallible>
[INFO] [stdout]    --> src/lib.rs:548:22
[INFO] [stdout]     |
[INFO] [stdout] 548 |                 pt = PlainText::from_str(&pt_str[1]).unwrap();
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<CypherText, Infallible>
[INFO] [stdout]    --> src/lib.rs:556:22
[INFO] [stdout]     |
[INFO] [stdout] 556 |                 ct = CypherText::from_str(&ct_str[1]).unwrap();
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `solitaire_cypher` (lib) due to 6 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `solitaire_cypher` (lib test) due to 8 previous errors
[INFO] running `Command { std: "docker" "inspect" "c2a55c60faf2d5ffe2e8e773739b4af00cc8efc6c85a8186c589bc19538da3ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c2a55c60faf2d5ffe2e8e773739b4af00cc8efc6c85a8186c589bc19538da3ed", kill_on_drop: false }`
[INFO] [stdout] c2a55c60faf2d5ffe2e8e773739b4af00cc8efc6c85a8186c589bc19538da3ed
