[INFO] fetching crate atomex 0.1.1...
[INFO] testing atomex-0.1.1 against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0
[INFO] extracting crate atomex 0.1.1 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate atomex 0.1.1
[INFO] finished tweaking crates.io crate atomex 0.1.1
[INFO] tweaked toml for crates.io crate atomex 0.1.1 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate atomex 0.1.1 on toolchain 8de4c7234dd9b97c9d76b58671343fdbbc9a433e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate atomex 0.1.1 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" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "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" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7db84d466bb3f04bbfd1ac4bc5ef6a501e081ef4d7b3dd94be2e5b266b787ff9
[INFO] running `Command { std: "docker" "start" "-a" "7db84d466bb3f04bbfd1ac4bc5ef6a501e081ef4d7b3dd94be2e5b266b787ff9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7db84d466bb3f04bbfd1ac4bc5ef6a501e081ef4d7b3dd94be2e5b266b787ff9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7db84d466bb3f04bbfd1ac4bc5ef6a501e081ef4d7b3dd94be2e5b266b787ff9", kill_on_drop: false }`
[INFO] [stdout] 7db84d466bb3f04bbfd1ac4bc5ef6a501e081ef4d7b3dd94be2e5b266b787ff9
[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" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "build" "--frozen" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] 3fa2f73337d836620a6cd79de065b550ae1dd64969ae32d458d31e3538fb53da
[INFO] running `Command { std: "docker" "start" "-a" "3fa2f73337d836620a6cd79de065b550ae1dd64969ae32d458d31e3538fb53da", kill_on_drop: false }`
[INFO] [stderr]    Compiling funty v3.0.0-rc2
[INFO] [stderr]    Compiling atomex v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0635]: unknown feature `integer_atomics`
[INFO] [stdout]  --> src/lib.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(integer_atomics)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `atomex` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "3fa2f73337d836620a6cd79de065b550ae1dd64969ae32d458d31e3538fb53da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3fa2f73337d836620a6cd79de065b550ae1dd64969ae32d458d31e3538fb53da", kill_on_drop: false }`
[INFO] [stdout] 3fa2f73337d836620a6cd79de065b550ae1dd64969ae32d458d31e3538fb53da