[INFO] fetching crate recode 0.5.0-alpha.3...
[INFO] checking recode-0.5.0-alpha.3 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate recode 0.5.0-alpha.3 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate recode 0.5.0-alpha.3
[INFO] finished tweaking crates.io crate recode 0.5.0-alpha.3
[INFO] tweaked toml for crates.io crate recode 0.5.0-alpha.3 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate recode 0.5.0-alpha.3 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 32 packages to latest compatible versions
[INFO] [stderr]       Adding fake v2.10.0 (available: v4.4.0)
[INFO] [stderr]       Adding thiserror v1.0.69 (available: v2.0.17)
[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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 1fb003bc38520505b1252d385f45ad53a6f957cbe8fedab71e7857fae3b67038
[INFO] running `Command { std: "docker" "start" "-a" "1fb003bc38520505b1252d385f45ad53a6f957cbe8fedab71e7857fae3b67038", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1fb003bc38520505b1252d385f45ad53a6f957cbe8fedab71e7857fae3b67038", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1fb003bc38520505b1252d385f45ad53a6f957cbe8fedab71e7857fae3b67038", kill_on_drop: false }`
[INFO] [stdout] 1fb003bc38520505b1252d385f45ad53a6f957cbe8fedab71e7857fae3b67038
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] d840b8a354348cc1276ed41e666eb76a55068ae0e4ca1db5e80b3dab5861d9d0
[INFO] running `Command { std: "docker" "start" "-a" "d840b8a354348cc1276ed41e666eb76a55068ae0e4ca1db5e80b3dab5861d9d0", kill_on_drop: false }`
[INFO] [stderr]    Compiling darling_core v0.21.3
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]     Checking ux v0.1.6
[INFO] [stderr]     Checking deunicode v1.6.2
[INFO] [stderr]     Checking fake v2.10.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking thiserror v1.0.69
[INFO] [stderr]    Compiling darling_macro v0.21.3
[INFO] [stderr]    Compiling darling v0.21.3
[INFO] [stderr]    Compiling recode-derive v0.5.0-alpha.1
[INFO] [stderr]     Checking recode v0.5.0-alpha.3 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<usize, Infallible>
[INFO] [stdout]    --> src/codec/number.rs:102:21
[INFO] [stdout]     |
[INFO] [stdout] 102 |                     usize::try_from(<Self as Decoder>::decode(buf)?)
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 151 | impl_int!(u8);
[INFO] [stdout]     | ------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout]     = note: this error originates in the macro `impl_int` (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: std::result::Result<usize, Infallible>
[INFO] [stdout]    --> src/codec/number.rs:124:33
[INFO] [stdout]     |
[INFO] [stdout] 124 |                     let value = value.try_into().map_err(TryFromIntError::from)?;
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 151 | impl_int!(u8);
[INFO] [stdout]     | ------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `impl_int` (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: std::result::Result<usize, Infallible>
[INFO] [stdout]    --> src/codec/number.rs:102:21
[INFO] [stdout]     |
[INFO] [stdout] 102 |                     usize::try_from(<Self as Decoder>::decode(buf)?)
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 154 | impl_int!(u16);
[INFO] [stdout]     | -------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `impl_int` (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: std::result::Result<usize, Infallible>
[INFO] [stdout]    --> src/codec/number.rs:124:33
[INFO] [stdout]     |
[INFO] [stdout] 124 |                     let value = value.try_into().map_err(TryFromIntError::from)?;
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 154 | impl_int!(u16);
[INFO] [stdout]     | -------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `impl_int` (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: std::result::Result<usize, Infallible>
[INFO] [stdout]    --> src/codec/number.rs:102:21
[INFO] [stdout]     |
[INFO] [stdout] 102 |                     usize::try_from(<Self as Decoder>::decode(buf)?)
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 151 | impl_int!(u8);
[INFO] [stdout]     | ------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout]     = note: this error originates in the macro `impl_int` (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: std::result::Result<usize, Infallible>
[INFO] [stdout]    --> src/codec/number.rs:124:33
[INFO] [stdout]     |
[INFO] [stdout] 124 |                     let value = value.try_into().map_err(TryFromIntError::from)?;
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 151 | impl_int!(u8);
[INFO] [stdout]     | ------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `impl_int` (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: std::result::Result<usize, Infallible>
[INFO] [stdout]    --> src/codec/number.rs:102:21
[INFO] [stdout]     |
[INFO] [stdout] 102 |                     usize::try_from(<Self as Decoder>::decode(buf)?)
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 154 | impl_int!(u16);
[INFO] [stdout]     | -------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `impl_int` (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: std::result::Result<usize, Infallible>
[INFO] [stdout]    --> src/codec/number.rs:124:33
[INFO] [stdout]     |
[INFO] [stdout] 124 |                     let value = value.try_into().map_err(TryFromIntError::from)?;
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 154 | impl_int!(u16);
[INFO] [stdout]     | -------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `impl_int` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `recode` (lib) due to 4 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `recode` (lib test) due to 4 previous errors
[INFO] running `Command { std: "docker" "inspect" "d840b8a354348cc1276ed41e666eb76a55068ae0e4ca1db5e80b3dab5861d9d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d840b8a354348cc1276ed41e666eb76a55068ae0e4ca1db5e80b3dab5861d9d0", kill_on_drop: false }`
[INFO] [stdout] d840b8a354348cc1276ed41e666eb76a55068ae0e4ca1db5e80b3dab5861d9d0