[INFO] fetching crate usf 0.1.0...
[INFO] building usf-0.1.0 against try#4987e9d4227139400384ab59296ffee3b0fb1183 for pr-146237-2
[INFO] extracting crate usf 0.1.0 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate usf 0.1.0
[INFO] finished tweaking crates.io crate usf 0.1.0
[INFO] tweaked toml for crates.io crate usf 0.1.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate usf 0.1.0 on toolchain 4987e9d4227139400384ab59296ffee3b0fb1183
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate usf 0.1.0 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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 16c4d18d0d11308933327a44837dc29625591176343593e6a1a04d5290930a14
[INFO] running `Command { std: "docker" "start" "-a" "16c4d18d0d11308933327a44837dc29625591176343593e6a1a04d5290930a14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "16c4d18d0d11308933327a44837dc29625591176343593e6a1a04d5290930a14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "16c4d18d0d11308933327a44837dc29625591176343593e6a1a04d5290930a14", kill_on_drop: false }`
[INFO] [stdout] 16c4d18d0d11308933327a44837dc29625591176343593e6a1a04d5290930a14
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 678d6d0ffcc9e5fe7e7f85082217c16cc39f50cb90229f7f943a051d4b2f3f61
[INFO] running `Command { std: "docker" "start" "-a" "678d6d0ffcc9e5fe7e7f85082217c16cc39f50cb90229f7f943a051d4b2f3f61", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.162
[INFO] [stderr]    Compiling proc-macro2 v1.0.89
[INFO] [stderr]    Compiling crossbeam-utils v0.8.20
[INFO] [stderr]    Compiling unicode-ident v1.0.13
[INFO] [stderr]    Compiling simd-adler32 v0.3.7
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]    Compiling pkg-config v0.3.31
[INFO] [stderr]    Compiling adler2 v2.0.0
[INFO] [stderr]    Compiling either v1.13.0
[INFO] [stderr]    Compiling serde v1.0.215
[INFO] [stderr]    Compiling time-core v0.1.2
[INFO] [stderr]    Compiling zstd-safe v7.2.1
[INFO] [stderr]    Compiling num-conv v0.1.0
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling crc32fast v1.4.2
[INFO] [stderr]    Compiling weezl v0.1.8
[INFO] [stderr]    Compiling miniz_oxide v0.8.0
[INFO] [stderr]    Compiling powerfmt v0.2.0
[INFO] [stderr]    Compiling fdeflate v0.3.6
[INFO] [stderr]    Compiling zune-inflate v0.2.54
[INFO] [stderr]    Compiling half v2.4.1
[INFO] [stderr]    Compiling time-macros v0.2.18
[INFO] [stderr]    Compiling smallvec v1.13.2
[INFO] [stderr]    Compiling num_threads v0.1.7
[INFO] [stderr]    Compiling deranged v0.3.11
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling lebe v0.5.2
[INFO] [stderr]    Compiling bytemuck v1.19.0
[INFO] [stderr]    Compiling color_quant v1.1.0
[INFO] [stderr]    Compiling bit_field v0.10.2
[INFO] [stderr]    Compiling itoa v1.0.11
[INFO] [stderr]    Compiling termcolor v1.4.1
[INFO] [stderr]    Compiling log v0.4.22
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling qoi v0.4.1
[INFO] [stderr]    Compiling flate2 v1.0.34
[INFO] [stderr]    Compiling gif v0.13.1
[INFO] [stderr]    Compiling xxhash-rust v0.8.12
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling jobserver v0.1.32
[INFO] [stderr]    Compiling syn v2.0.87
[INFO] [stderr]    Compiling cc v1.2.0
[INFO] [stderr]    Compiling crossbeam-deque v0.8.5
[INFO] [stderr]    Compiling png v0.17.14
[INFO] [stderr]    Compiling time v0.3.36
[INFO] [stderr]    Compiling rayon v1.10.0
[INFO] [stderr]    Compiling exr v1.73.0
[INFO] [stderr]    Compiling zstd-sys v2.0.13+zstd.1.5.6
[INFO] [stderr]    Compiling simplelog v0.12.2
[INFO] [stderr]    Compiling serde_derive v1.0.215
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling jpeg-decoder v0.3.1
[INFO] [stderr]    Compiling tiff v0.9.1
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]    Compiling image v0.24.9
[INFO] [stderr]    Compiling zstd v0.13.2
[INFO] [stderr]    Compiling bincode v1.3.3
[INFO] [stderr]    Compiling chrono v0.4.38
[INFO] [stderr]    Compiling usf v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::io::Cursor`
[INFO] [stdout]   --> src/lib.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::io::Cursor;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `output`
[INFO] [stdout]    --> src/lib.rs:219:29
[INFO] [stdout]     |
[INFO] [stdout] 219 |                     let mut output: Vec<u8> = Vec::new();
[INFO] [stdout]     |                             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_output`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:219:25
[INFO] [stdout]     |
[INFO] [stdout] 219 |                     let mut output: Vec<u8> = Vec::new();
[INFO] [stdout]     |                         ----^^^^^^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Write`
[INFO] [stdout]  --> src/main.rs:1:21
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io::{self, Write};
[INFO] [stdout]   |                     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `chrono::Utc`
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use chrono::Utc;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 31.78s
[INFO] running `Command { std: "docker" "inspect" "678d6d0ffcc9e5fe7e7f85082217c16cc39f50cb90229f7f943a051d4b2f3f61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "678d6d0ffcc9e5fe7e7f85082217c16cc39f50cb90229f7f943a051d4b2f3f61", kill_on_drop: false }`
[INFO] [stdout] 678d6d0ffcc9e5fe7e7f85082217c16cc39f50cb90229f7f943a051d4b2f3f61
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9fd2970371c82a33c4b257e93cbc1e3dfe619472b4898b20041acb155e5f45ae
[INFO] running `Command { std: "docker" "start" "-a" "9fd2970371c82a33c4b257e93cbc1e3dfe619472b4898b20041acb155e5f45ae", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.215
[INFO] [stderr]    Compiling either v1.13.0
[INFO] [stderr]    Compiling serde_json v1.0.132
[INFO] [stderr]    Compiling ciborium-io v0.2.2
[INFO] [stderr]    Compiling anstyle v1.0.10
[INFO] [stderr]    Compiling memchr v2.7.4
[INFO] [stderr]    Compiling rustix v0.38.40
[INFO] [stderr]    Compiling regex-syntax v0.8.5
[INFO] [stderr]    Compiling clap_lex v0.7.2
[INFO] [stderr]    Compiling ryu v1.0.18
[INFO] [stderr]    Compiling plotters-backend v0.3.7
[INFO] [stderr]    Compiling once_cell v1.20.2
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling bitflags v2.6.0
[INFO] [stderr]    Compiling cast v0.3.0
[INFO] [stderr]    Compiling ciborium-ll v0.2.2
[INFO] [stderr]    Compiling linux-raw-sys v0.4.14
[INFO] [stderr]    Compiling is-terminal v0.4.13
[INFO] [stderr]    Compiling anes v0.1.6
[INFO] [stderr]    Compiling clap_builder v4.5.20
[INFO] [stderr]    Compiling plotters-svg v0.3.7
[INFO] [stderr]    Compiling rayon v1.10.0
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling fastrand v2.2.0
[INFO] [stderr]    Compiling oorandom v11.1.4
[INFO] [stderr]    Compiling walkdir v2.5.0
[INFO] [stderr]    Compiling plotters v0.3.7
[INFO] [stderr]    Compiling criterion-plot v0.5.0
[INFO] [stderr]    Compiling regex-automata v0.4.9
[INFO] [stderr]    Compiling clap v4.5.20
[INFO] [stderr]    Compiling tempfile v3.14.0
[INFO] [stderr]    Compiling ciborium v0.2.2
[INFO] [stderr]    Compiling jpeg-decoder v0.3.1
[INFO] [stderr]    Compiling bincode v1.3.3
[INFO] [stderr]    Compiling chrono v0.4.38
[INFO] [stderr]    Compiling regex v1.11.1
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling tiff v0.9.1
[INFO] [stderr]    Compiling criterion v0.5.1
[INFO] [stderr]    Compiling image v0.24.9
[INFO] [stderr]    Compiling usf v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::io::Cursor`
[INFO] [stdout]   --> src/lib.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::io::Cursor;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `output`
[INFO] [stdout]    --> src/lib.rs:219:29
[INFO] [stdout]     |
[INFO] [stdout] 219 |                     let mut output: Vec<u8> = Vec::new();
[INFO] [stdout]     |                             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_output`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:219:25
[INFO] [stdout]     |
[INFO] [stdout] 219 |                     let mut output: Vec<u8> = Vec::new();
[INFO] [stdout]     |                         ----^^^^^^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Write`
[INFO] [stdout]  --> src/main.rs:1:21
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io::{self, Write};
[INFO] [stdout]   |                     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `chrono::Utc`
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use chrono::Utc;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Cursor`
[INFO] [stdout]   --> src/lib.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::io::Cursor;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `output`
[INFO] [stdout]    --> src/lib.rs:219:29
[INFO] [stdout]     |
[INFO] [stdout] 219 |                     let mut output: Vec<u8> = Vec::new();
[INFO] [stdout]     |                             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_output`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:219:25
[INFO] [stdout]     |
[INFO] [stdout] 219 |                     let mut output: Vec<u8> = Vec::new();
[INFO] [stdout]     |                         ----^^^^^^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 24.32s
[INFO] running `Command { std: "docker" "inspect" "9fd2970371c82a33c4b257e93cbc1e3dfe619472b4898b20041acb155e5f45ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9fd2970371c82a33c4b257e93cbc1e3dfe619472b4898b20041acb155e5f45ae", kill_on_drop: false }`
[INFO] [stdout] 9fd2970371c82a33c4b257e93cbc1e3dfe619472b4898b20041acb155e5f45ae