[INFO] cloning repository https://github.com/Le-Maz/file-mst
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Le-Maz/file-mst" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLe-Maz%2Ffile-mst", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLe-Maz%2Ffile-mst'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2bd22c3871afd092061cc58724baccc93a5a5ea0
[INFO] checking Le-Maz/file-mst against 1.95.0 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLe-Maz%2Ffile-mst" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Le-Maz/file-mst
[INFO] finished tweaking git repo https://github.com/Le-Maz/file-mst
[INFO] tweaked toml for git repo https://github.com/Le-Maz/file-mst written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Le-Maz/file-mst on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Le-Maz/file-mst 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" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 158dfb4f622cec83d36ee5db439e8f2e030dd81646de301bbb3796918b646959
[INFO] running `Command { std: "docker" "start" "-a" "158dfb4f622cec83d36ee5db439e8f2e030dd81646de301bbb3796918b646959", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "158dfb4f622cec83d36ee5db439e8f2e030dd81646de301bbb3796918b646959", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "158dfb4f622cec83d36ee5db439e8f2e030dd81646de301bbb3796918b646959", kill_on_drop: false }`
[INFO] [stdout] 158dfb4f622cec83d36ee5db439e8f2e030dd81646de301bbb3796918b646959
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1a52acf422a5d324d3c7bf4064af7286e91a04772d6747d8d5afabcb35d06ae9
[INFO] running `Command { std: "docker" "start" "-a" "1a52acf422a5d324d3c7bf4064af7286e91a04772d6747d8d5afabcb35d06ae9", kill_on_drop: false }`
[INFO] [stderr]     Checking getrandom v0.3.4
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling thiserror v2.0.18
[INFO] [stderr]    Compiling zerocopy v0.8.33
[INFO] [stderr]    Compiling find-msvc-tools v0.1.8
[INFO] [stderr]    Compiling heapless v0.7.17
[INFO] [stderr]    Compiling thiserror-impl v2.0.18
[INFO] [stderr]    Compiling rustix v1.1.3
[INFO] [stderr]    Compiling tokio-macros v2.6.0
[INFO] [stderr]     Checking once_cell v1.21.3
[INFO] [stderr]     Checking hash32 v0.2.1
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]     Checking rand_core v0.9.5
[INFO] [stderr]    Compiling cc v1.2.54
[INFO] [stderr]     Checking tokio v1.49.0
[INFO] [stderr]     Checking cobs v0.3.0
[INFO] [stderr]    Compiling blake3 v1.8.3
[INFO] [stderr]     Checking tempfile v3.24.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.21
[INFO] [stderr]     Checking rand_chacha v0.9.0
[INFO] [stderr]     Checking serde v1.0.228
[INFO] [stderr]     Checking rand v0.9.2
[INFO] [stderr]     Checking postcard v1.1.3
[INFO] [stderr]     Checking file-mst v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:2:19
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![cfg_attr(test, feature(test))]
[INFO] [stdout]   |                   ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `file-mst` (lib test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "1a52acf422a5d324d3c7bf4064af7286e91a04772d6747d8d5afabcb35d06ae9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a52acf422a5d324d3c7bf4064af7286e91a04772d6747d8d5afabcb35d06ae9", kill_on_drop: false }`
[INFO] [stdout] 1a52acf422a5d324d3c7bf4064af7286e91a04772d6747d8d5afabcb35d06ae9
