[INFO] cloning repository https://github.com/yuoo655/ext4libtest
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/yuoo655/ext4libtest" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyuoo655%2Fext4libtest", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyuoo655%2Fext4libtest'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b6ecea20b97f225401f05d48f2435899756b05e7
[INFO] checking yuoo655/ext4libtest against 1.95.0 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyuoo655%2Fext4libtest" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/yuoo655/ext4libtest
[INFO] finished tweaking git repo https://github.com/yuoo655/ext4libtest
[INFO] tweaked toml for git repo https://github.com/yuoo655/ext4libtest written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/yuoo655/ext4libtest 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/yuoo655/ext4libtest 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] [stderr]     Updating git repository `https://github.com/yuoo655/ext4_rs.git`
[INFO] [stderr]     Updating git repository `https://github.com/cberner/fuser.git`
[INFO] [stderr]     Updating git repository `https://github.com/yuoo655/jbd2_rs.git`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded page_size v0.6.0
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 973ff969af7ff9940641817d73c07d3611ed5202714f74d8a4dfbd63a32508b0
[INFO] running `Command { std: "docker" "start" "-a" "973ff969af7ff9940641817d73c07d3611ed5202714f74d8a4dfbd63a32508b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "973ff969af7ff9940641817d73c07d3611ed5202714f74d8a4dfbd63a32508b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "973ff969af7ff9940641817d73c07d3611ed5202714f74d8a4dfbd63a32508b0", kill_on_drop: false }`
[INFO] [stdout] 973ff969af7ff9940641817d73c07d3611ed5202714f74d8a4dfbd63a32508b0
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 38be7a52f921d9aa0ad328647f113c9750b3d5fb74a1414ee265a498dea9507f
[INFO] running `Command { std: "docker" "start" "-a" "38be7a52f921d9aa0ad328647f113c9750b3d5fb74a1414ee265a498dea9507f", kill_on_drop: false }`
[INFO] [stderr]     Checking log v0.4.21
[INFO] [stderr]    Compiling nix v0.28.0
[INFO] [stderr]    Compiling fuser v0.14.0 (https://github.com/cberner/fuser.git#99aa5280)
[INFO] [stderr]     Checking memchr v2.7.2
[INFO] [stderr]     Checking page_size v0.6.0
[INFO] [stderr]    Compiling zerocopy-derive v0.7.34
[INFO] [stderr]     Checking ext4_rs v1.3.0 (https://github.com/yuoo655/ext4_rs.git#4d537942)
[INFO] [stderr]     Checking jbd2_rs v0.1.0 (https://github.com/yuoo655/jbd2_rs.git#94d8e257)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/git/checkouts/ext4_rs-28b2fc05512637a3/4d53794/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(error_in_core)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking zerocopy v0.7.34
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ext4_rs` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "38be7a52f921d9aa0ad328647f113c9750b3d5fb74a1414ee265a498dea9507f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "38be7a52f921d9aa0ad328647f113c9750b3d5fb74a1414ee265a498dea9507f", kill_on_drop: false }`
[INFO] [stdout] 38be7a52f921d9aa0ad328647f113c9750b3d5fb74a1414ee265a498dea9507f