[INFO] fetching crate rscni 0.0.4...
[INFO] building rscni-0.0.4 against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] extracting crate rscni 0.0.4 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate rscni 0.0.4
[INFO] finished tweaking crates.io crate rscni 0.0.4
[INFO] tweaked toml for crates.io crate rscni 0.0.4 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate rscni 0.0.4 on toolchain c7f6aa2869acdbf014d094c6e427e554e160b6db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 38 packages to latest compatible versions
[INFO] [stderr]       Adding rstest v0.18.2 (available: v0.26.1)
[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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded assert-json-diff v2.0.2
[INFO] [stderr]   Downloaded rstest v0.18.2
[INFO] [stderr]   Downloaded rstest_macros v0.18.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 72c427db0ddd37b7f6112b3b226440b455d801986dcfc97c0188225073d05293
[INFO] running `Command { std: "docker" "start" "-a" "72c427db0ddd37b7f6112b3b226440b455d801986dcfc97c0188225073d05293", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "72c427db0ddd37b7f6112b3b226440b455d801986dcfc97c0188225073d05293", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72c427db0ddd37b7f6112b3b226440b455d801986dcfc97c0188225073d05293", kill_on_drop: false }`
[INFO] [stdout] 72c427db0ddd37b7f6112b3b226440b455d801986dcfc97c0188225073d05293
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] df6ae6690a5800cd1449a7721db0fe3fa6ddae62cb7000ada5c7318987fec91b
[INFO] running `Command { std: "docker" "start" "-a" "df6ae6690a5800cd1449a7721db0fe3fa6ddae62cb7000ada5c7318987fec91b", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling rscni v0.0.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `stderr` is never read
[INFO] [stdout]  --> src/util.rs:8:16
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub(super) struct IoTarget {
[INFO] [stdout]   |                   -------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 8 |     pub(super) stderr: Box<dyn Write>,
[INFO] [stdout]   |                ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.96s
[INFO] running `Command { std: "docker" "inspect" "df6ae6690a5800cd1449a7721db0fe3fa6ddae62cb7000ada5c7318987fec91b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df6ae6690a5800cd1449a7721db0fe3fa6ddae62cb7000ada5c7318987fec91b", kill_on_drop: false }`
[INFO] [stdout] df6ae6690a5800cd1449a7721db0fe3fa6ddae62cb7000ada5c7318987fec91b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] eeb2c8f5a5d84f3f8d12a0b89ae14c32014265b0a0be781e63e3622f6fd3d023
[INFO] running `Command { std: "docker" "start" "-a" "eeb2c8f5a5d84f3f8d12a0b89ae14c32014265b0a0be781e63e3622f6fd3d023", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver v1.0.27
[INFO] [stderr]    Compiling futures-sink v0.3.31
[INFO] [stderr]    Compiling futures-core v0.3.31
[INFO] [stderr]    Compiling futures-io v0.3.31
[INFO] [stderr]    Compiling regex-syntax v0.8.6
[INFO] [stderr]    Compiling relative-path v1.9.3
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling futures-channel v0.3.31
[INFO] [stderr]    Compiling rustc_version v0.4.1
[INFO] [stderr]    Compiling rstest_macros v0.18.2
[INFO] [stderr]    Compiling regex-automata v0.4.11
[INFO] [stderr]    Compiling regex v1.11.3
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling assert-json-diff v2.0.2
[INFO] [stderr]    Compiling rscni v0.0.4 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling futures-executor v0.3.31
[INFO] [stdout] warning: field `stderr` is never read
[INFO] [stdout]  --> src/util.rs:8:16
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub(super) struct IoTarget {
[INFO] [stdout]   |                   -------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 8 |     pub(super) stderr: Box<dyn Write>,
[INFO] [stdout]   |                ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling futures v0.3.31
[INFO] [stderr]    Compiling rstest v0.18.2
[INFO] [stdout] warning: field `stderr` is never read
[INFO] [stdout]  --> src/util.rs:8:16
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub(super) struct IoTarget {
[INFO] [stdout]   |                   -------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 8 |     pub(super) stderr: Box<dyn Write>,
[INFO] [stdout]   |                ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 17.26s
[INFO] running `Command { std: "docker" "inspect" "eeb2c8f5a5d84f3f8d12a0b89ae14c32014265b0a0be781e63e3622f6fd3d023", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eeb2c8f5a5d84f3f8d12a0b89ae14c32014265b0a0be781e63e3622f6fd3d023", kill_on_drop: false }`
[INFO] [stdout] eeb2c8f5a5d84f3f8d12a0b89ae14c32014265b0a0be781e63e3622f6fd3d023