[INFO] fetching crate esexpr-binary 0.2.5...
[INFO] checking esexpr-binary-0.2.5 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate esexpr-binary 0.2.5 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate esexpr-binary 0.2.5
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate esexpr-binary 0.2.5
[INFO] tweaked toml for crates.io crate esexpr-binary 0.2.5 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate esexpr-binary 0.2.5 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 esexpr-binary 0.2.5 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] 994a75609b8b0f21e8029d5d0b8e979db7b5ecce2fbc9880bb735078fbafd21f
[INFO] running `Command { std: "docker" "start" "-a" "994a75609b8b0f21e8029d5d0b8e979db7b5ecce2fbc9880bb735078fbafd21f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "994a75609b8b0f21e8029d5d0b8e979db7b5ecce2fbc9880bb735078fbafd21f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "994a75609b8b0f21e8029d5d0b8e979db7b5ecce2fbc9880bb735078fbafd21f", kill_on_drop: false }`
[INFO] [stdout] 994a75609b8b0f21e8029d5d0b8e979db7b5ecce2fbc9880bb735078fbafd21f
[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] dba53159fae91fd7475f10565ee7aecca251ec0f67a2b98bfbd3decc43346b7c
[INFO] running `Command { std: "docker" "start" "-a" "dba53159fae91fd7475f10565ee7aecca251ec0f67a2b98bfbd3decc43346b7c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling quote v1.0.41
[INFO] [stderr]    Compiling autocfg v1.5.0
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling strsim v0.11.1
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]     Checking memchr v2.7.5
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling unicode-segmentation v1.12.0
[INFO] [stderr]     Checking pin-project-lite v0.2.16
[INFO] [stderr]     Checking futures-core v0.3.31
[INFO] [stderr]     Checking cfg-if v1.0.1
[INFO] [stderr]     Checking futures-sink v0.3.31
[INFO] [stderr]     Checking slab v0.4.10
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling unicode-xid v0.2.6
[INFO] [stderr]     Checking futures-task v0.3.31
[INFO] [stderr]    Compiling serde_json v1.0.145
[INFO] [stderr]     Checking half v2.6.0
[INFO] [stderr]     Checking futures-io v0.3.31
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking bytemuck v1.24.0
[INFO] [stderr]     Checking base64 v0.22.1
[INFO] [stderr]     Checking futures-channel v0.3.31
[INFO] [stderr]    Compiling convert_case v0.7.1
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking futures-util v0.3.31
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking num-bigint v0.4.6
[INFO] [stderr]     Checking futures v0.3.31
[INFO] [stderr]    Compiling darling_core v0.21.3
[INFO] [stderr]    Compiling derive_more-impl v2.0.1
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling tokio-macros v2.5.0
[INFO] [stderr]     Checking tokio v1.47.1
[INFO] [stderr]    Compiling darling_macro v0.21.3
[INFO] [stderr]    Compiling darling v0.21.3
[INFO] [stderr]    Compiling esexpr-derive v0.2.5
[INFO] [stderr]     Checking esexpr v0.2.5
[INFO] [stderr]     Checking esexpr-json v0.2.5
[INFO] [stderr]     Checking derive_more v2.0.1
[INFO] [stderr]     Checking esexpr-binary v0.2.5 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]   --> src/io.rs:14:66
[INFO] [stdout]    |
[INFO] [stdout] 14 |       fn read(&mut self, buf: &mut [u8]) -> Result<usize, Infallible> {
[INFO] [stdout]    |  _____________________________________________________________________^
[INFO] [stdout] 15 | |         let len = core::cmp::min(self.len(), buf.len());
[INFO] [stdout] 16 | |         buf[..len].copy_from_slice(&self[..len]);
[INFO] [stdout] 17 | |         *self = &self[len..];
[INFO] [stdout] 18 | |         Ok(len)
[INFO] [stdout] 19 | |     }
[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<usize, Infallible>
[INFO] [stdout]   --> src/io.rs:18:3
[INFO] [stdout]    |
[INFO] [stdout] 18 |         Ok(len)
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]   --> src/io.rs:69:72
[INFO] [stdout]    |
[INFO] [stdout] 69 |       async fn read(&mut self, buf: &mut [u8]) -> Result<usize, Infallible> {
[INFO] [stdout]    |  ___________________________________________________________________________^
[INFO] [stdout] 70 | |         let len = core::cmp::min(self.len(), buf.len());
[INFO] [stdout] 71 | |         buf.copy_from_slice(&self[..len]);
[INFO] [stdout] 72 | |         *self = &self[len..];
[INFO] [stdout] 73 | |         Ok(len)
[INFO] [stdout] 74 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]   --> src/io.rs:69:72
[INFO] [stdout]    |
[INFO] [stdout] 69 |       async fn read(&mut self, buf: &mut [u8]) -> Result<usize, Infallible> {
[INFO] [stdout]    |  ___________________________________________________________________________^
[INFO] [stdout] 70 | |         let len = core::cmp::min(self.len(), buf.len());
[INFO] [stdout] 71 | |         buf.copy_from_slice(&self[..len]);
[INFO] [stdout] 72 | |         *self = &self[len..];
[INFO] [stdout] 73 | |         Ok(len)
[INFO] [stdout] 74 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]   --> src/io.rs:73:3
[INFO] [stdout]    |
[INFO] [stdout] 73 |         Ok(len)
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `esexpr-binary` (lib) due to 5 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]   --> src/io.rs:14:66
[INFO] [stdout]    |
[INFO] [stdout] 14 |       fn read(&mut self, buf: &mut [u8]) -> Result<usize, Infallible> {
[INFO] [stdout]    |  _____________________________________________________________________^
[INFO] [stdout] 15 | |         let len = core::cmp::min(self.len(), buf.len());
[INFO] [stdout] 16 | |         buf[..len].copy_from_slice(&self[..len]);
[INFO] [stdout] 17 | |         *self = &self[len..];
[INFO] [stdout] 18 | |         Ok(len)
[INFO] [stdout] 19 | |     }
[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<usize, Infallible>
[INFO] [stdout]   --> src/io.rs:18:3
[INFO] [stdout]    |
[INFO] [stdout] 18 |         Ok(len)
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]   --> src/io.rs:69:72
[INFO] [stdout]    |
[INFO] [stdout] 69 |       async fn read(&mut self, buf: &mut [u8]) -> Result<usize, Infallible> {
[INFO] [stdout]    |  ___________________________________________________________________________^
[INFO] [stdout] 70 | |         let len = core::cmp::min(self.len(), buf.len());
[INFO] [stdout] 71 | |         buf.copy_from_slice(&self[..len]);
[INFO] [stdout] 72 | |         *self = &self[len..];
[INFO] [stdout] 73 | |         Ok(len)
[INFO] [stdout] 74 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]   --> src/io.rs:69:72
[INFO] [stdout]    |
[INFO] [stdout] 69 |       async fn read(&mut self, buf: &mut [u8]) -> Result<usize, Infallible> {
[INFO] [stdout]    |  ___________________________________________________________________________^
[INFO] [stdout] 70 | |         let len = core::cmp::min(self.len(), buf.len());
[INFO] [stdout] 71 | |         buf.copy_from_slice(&self[..len]);
[INFO] [stdout] 72 | |         *self = &self[len..];
[INFO] [stdout] 73 | |         Ok(len)
[INFO] [stdout] 74 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]   --> src/io.rs:73:3
[INFO] [stdout]    |
[INFO] [stdout] 73 |         Ok(len)
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `esexpr-binary` (lib test) due to 5 previous errors
[INFO] running `Command { std: "docker" "inspect" "dba53159fae91fd7475f10565ee7aecca251ec0f67a2b98bfbd3decc43346b7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dba53159fae91fd7475f10565ee7aecca251ec0f67a2b98bfbd3decc43346b7c", kill_on_drop: false }`
[INFO] [stdout] dba53159fae91fd7475f10565ee7aecca251ec0f67a2b98bfbd3decc43346b7c
