[INFO] fetching crate ezcbor 0.1.4...
[INFO] checking ezcbor-0.1.4 against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170
[INFO] extracting crate ezcbor 0.1.4 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate ezcbor 0.1.4
[INFO] finished tweaking crates.io crate ezcbor 0.1.4
[INFO] tweaked toml for crates.io crate ezcbor 0.1.4 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate ezcbor 0.1.4 on toolchain cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "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" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "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 criterion v0.5.1 (available: v0.6.0)
[INFO] [stderr]       Adding rand v0.8.5 (available: v0.9.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2664b821684b9e00985723fe0b8b625330c442cf0b120612d5c6026f033ae567
[INFO] running `Command { std: "docker" "start" "-a" "2664b821684b9e00985723fe0b8b625330c442cf0b120612d5c6026f033ae567", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2664b821684b9e00985723fe0b8b625330c442cf0b120612d5c6026f033ae567", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2664b821684b9e00985723fe0b8b625330c442cf0b120612d5c6026f033ae567", kill_on_drop: false }`
[INFO] [stdout] 2664b821684b9e00985723fe0b8b625330c442cf0b120612d5c6026f033ae567
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f3daa08ccc40a4ece1b246637f4e48e6edd2876f5b16e22af62272a6de6d6f70
[INFO] running `Command { std: "docker" "start" "-a" "f3daa08ccc40a4ece1b246637f4e48e6edd2876f5b16e22af62272a6de6d6f70", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]     Checking either v1.15.0
[INFO] [stderr]     Checking getrandom v0.2.16
[INFO] [stderr]     Checking half v2.6.0
[INFO] [stderr]     Checking regex-syntax v0.8.5
[INFO] [stderr]     Checking anstyle v1.0.11
[INFO] [stderr]     Checking ciborium-io v0.2.2
[INFO] [stderr]     Checking clap_lex v0.7.5
[INFO] [stderr]     Checking plotters-backend v0.3.7
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking ciborium-ll v0.2.2
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking clap_builder v4.5.40
[INFO] [stderr]     Checking plotters-svg v0.3.7
[INFO] [stderr]     Checking ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]     Checking cast v0.3.0
[INFO] [stderr]     Checking plotters v0.3.7
[INFO] [stderr]     Checking is-terminal v0.4.16
[INFO] [stderr]     Checking crossbeam-deque v0.8.6
[INFO] [stderr]     Checking oorandom v11.1.5
[INFO] [stderr]     Checking anes v0.1.6
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking regex-automata v0.4.9
[INFO] [stderr]     Checking ezcbor v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking rayon v1.10.0
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking criterion-plot v0.5.0
[INFO] [stderr]     Checking clap v4.5.40
[INFO] [stderr]     Checking regex v1.11.1
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]     Checking serde v1.0.219
[INFO] [stderr]     Checking serde_json v1.0.140
[INFO] [stderr]     Checking ciborium v0.2.2
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking criterion v0.5.1
[INFO] [stdout] warning: unused import: `rand::rngs::ThreadRng`
[INFO] [stdout]  --> benches/my_benchmark.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use rand::rngs::ThreadRng;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rng`
[INFO] [stdout]   --> benches/my_benchmark.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let rng = rand::thread_rng();
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_rng`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bytes`
[INFO] [stdout]   --> benches/my_benchmark.rs:18:13
[INFO] [stdout]    |
[INFO] [stdout] 18 |         let bytes = large_vec.to_cbor_bytes();
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_bytes`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `decoded_vec`
[INFO] [stdout]   --> benches/my_benchmark.rs:22:13
[INFO] [stdout]    |
[INFO] [stdout] 22 |         let decoded_vec: Vec<i32> = decode_cbor(&bytes).unwrap();
[INFO] [stdout]    |             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_decoded_vec`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/cbor.rs:1004:13
[INFO] [stdout]      |
[INFO] [stdout] 1004 |         let mut item = Item::Int(vec![1,2,10]);
[INFO] [stdout]      |             ----^^^^
[INFO] [stdout]      |             |
[INFO] [stdout]      |             help: remove this `mut`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 20.43s
[INFO] running `Command { std: "docker" "inspect" "f3daa08ccc40a4ece1b246637f4e48e6edd2876f5b16e22af62272a6de6d6f70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3daa08ccc40a4ece1b246637f4e48e6edd2876f5b16e22af62272a6de6d6f70", kill_on_drop: false }`
[INFO] [stdout] f3daa08ccc40a4ece1b246637f4e48e6edd2876f5b16e22af62272a6de6d6f70