[INFO] fetching crate enumchar 0.1.2...
[INFO] checking enumchar-0.1.2 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate enumchar 0.1.2 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate enumchar 0.1.2
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate enumchar 0.1.2
[INFO] tweaked toml for crates.io crate enumchar 0.1.2 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate enumchar 0.1.2 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] 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 27 packages to latest compatible versions
[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] ff53be0429f456d682dd52c76f5a0ce43dcedbcc935fe16e09f77ed71edc5c0a
[INFO] running `Command { std: "docker" "start" "-a" "ff53be0429f456d682dd52c76f5a0ce43dcedbcc935fe16e09f77ed71edc5c0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ff53be0429f456d682dd52c76f5a0ce43dcedbcc935fe16e09f77ed71edc5c0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff53be0429f456d682dd52c76f5a0ce43dcedbcc935fe16e09f77ed71edc5c0a", kill_on_drop: false }`
[INFO] [stdout] ff53be0429f456d682dd52c76f5a0ce43dcedbcc935fe16e09f77ed71edc5c0a
[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] 7b7bb92e3a9b6095888070dd14a6845bb2c87ee205fa2fd77874d4a5c451304e
[INFO] running `Command { std: "docker" "start" "-a" "7b7bb92e3a9b6095888070dd14a6845bb2c87ee205fa2fd77874d4a5c451304e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.103
[INFO] [stderr]    Compiling quote v1.0.42
[INFO] [stderr]     Checking unicode-ident v1.0.22
[INFO] [stderr]    Compiling target-triple v1.0.0
[INFO] [stderr]     Checking toml_parser v1.0.4
[INFO] [stderr]     Checking toml_datetime v0.7.3
[INFO] [stderr]     Checking serde_spanned v1.0.3
[INFO] [stderr]     Checking toml_writer v1.0.4
[INFO] [stderr]     Checking toml v0.9.8
[INFO] [stderr]    Compiling syn v2.0.110
[INFO] [stderr]     Checking enumchar v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]     Checking trybuild v1.0.114
[INFO] [stdout] error: this type will no longer be must used: Result<char, Infallible>
[INFO] [stdout]  --> tests/test_enumchar.rs:7:10
[INFO] [stdout]   |
[INFO] [stdout] 7 | #[derive(EnumChar, Debug, PartialEq, Eq)]
[INFO] [stdout]   |          ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout]   = note: this error originates in the derive macro `EnumChar` (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<char, Infallible>
[INFO] [stdout]   --> tests/test_enumchar.rs:22:16
[INFO] [stdout]    |
[INFO] [stdout] 22 |     assert_eq!(char::try_from(ECAllVariants::Empty), Ok('.'));
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<char, Infallible>
[INFO] [stdout]   --> tests/test_enumchar.rs:22:54
[INFO] [stdout]    |
[INFO] [stdout] 22 |     assert_eq!(char::try_from(ECAllVariants::Empty), Ok('.'));
[INFO] [stdout]    |                                                      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<char, Infallible>
[INFO] [stdout]   --> tests/test_enumchar.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 |     assert_eq!(char::try_from(ECAllVariants::Empty), Ok('.'));
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `assert_eq` (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<char, Infallible>
[INFO] [stdout]   --> tests/test_enumchar.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 |     assert_eq!(char::try_from(ECAllVariants::Empty), Ok('.'));
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `assert_eq` (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<char, Infallible>
[INFO] [stdout]   --> tests/test_enumchar.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 |     assert_eq!(char::try_from(ECAllVariants::Empty), Ok('.'));
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `assert_eq` (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<char, Infallible>
[INFO] [stdout]   --> tests/test_enumchar.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 |     assert_eq!(char::try_from(ECAllVariants::Empty), Ok('.'));
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `assert_eq` (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<char, Infallible>
[INFO] [stdout]   --> tests/test_enumchar.rs:23:16
[INFO] [stdout]    |
[INFO] [stdout] 23 |     assert_eq!(char::try_from(ECAllVariants::Wall), Ok('#'));
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<char, Infallible>
[INFO] [stdout]   --> tests/test_enumchar.rs:23:53
[INFO] [stdout]    |
[INFO] [stdout] 23 |     assert_eq!(char::try_from(ECAllVariants::Wall), Ok('#'));
[INFO] [stdout]    |                                                     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<char, Infallible>
[INFO] [stdout]   --> tests/test_enumchar.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 |     assert_eq!(char::try_from(ECAllVariants::Wall), Ok('#'));
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `assert_eq` (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<char, Infallible>
[INFO] [stdout]   --> tests/test_enumchar.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 |     assert_eq!(char::try_from(ECAllVariants::Wall), Ok('#'));
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `assert_eq` (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<char, Infallible>
[INFO] [stdout]   --> tests/test_enumchar.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 |     assert_eq!(char::try_from(ECAllVariants::Wall), Ok('#'));
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `assert_eq` (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<char, Infallible>
[INFO] [stdout]   --> tests/test_enumchar.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 |     assert_eq!(char::try_from(ECAllVariants::Wall), Ok('#'));
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `enumchar` (test "test_enumchar") due to 13 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "7b7bb92e3a9b6095888070dd14a6845bb2c87ee205fa2fd77874d4a5c451304e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b7bb92e3a9b6095888070dd14a6845bb2c87ee205fa2fd77874d4a5c451304e", kill_on_drop: false }`
[INFO] [stdout] 7b7bb92e3a9b6095888070dd14a6845bb2c87ee205fa2fd77874d4a5c451304e
