[INFO] fetching crate mustang 0.14.4...
[INFO] testing mustang-0.14.4 against 1.75.0 for beta-1.76-1
[INFO] extracting crate mustang 0.14.4 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate mustang 0.14.4 on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mustang 0.14.4
[INFO] finished tweaking crates.io crate mustang 0.14.4
[INFO] tweaked toml for crates.io crate mustang 0.14.4 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate crates.io crate mustang 0.14.4 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" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ctor v0.2.5
[INFO] [stderr]   Downloaded tz-rs v0.6.14
[INFO] [stderr]   Downloaded printf-compat v0.1.1
[INFO] [stderr]   Downloaded rustix-openpty v0.1.1
[INFO] [stderr]   Downloaded realpath-ext v0.1.3
[INFO] [stderr]   Downloaded similar-asserts v1.5.0
[INFO] [stderr]   Downloaded cstr_core v0.2.6
[INFO] [stderr]   Downloaded atomic-dbg v0.1.8
[INFO] [stderr]   Downloaded rustix-futex-sync v0.1.4
[INFO] [stderr]   Downloaded unwinding v0.2.0
[INFO] [stderr]   Downloaded sync-resolve v0.3.0
[INFO] [stderr]   Downloaded c-gull v0.15.9
[INFO] [stderr]   Downloaded origin v0.13.14
[INFO] [stderr]   Downloaded c-scape v0.15.9
[INFO] [stderr]   Downloaded rustix-dlmalloc v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ab93ad9d99215c50389778658c05edcdc790c6b11df4642351002b929c083af5
[INFO] running `Command { std: "docker" "start" "-a" "ab93ad9d99215c50389778658c05edcdc790c6b11df4642351002b929c083af5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ab93ad9d99215c50389778658c05edcdc790c6b11df4642351002b929c083af5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab93ad9d99215c50389778658c05edcdc790c6b11df4642351002b929c083af5", kill_on_drop: false }`
[INFO] [stdout] ab93ad9d99215c50389778658c05edcdc790c6b11df4642351002b929c083af5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fa3f8c511ac5a642a4d7fb41b6ce1225368e4ea51f6f2388a4f0bd25161bcf29
[INFO] running `Command { std: "docker" "start" "-a" "fa3f8c511ac5a642a4d7fb41b6ce1225368e4ea51f6f2388a4f0bd25161bcf29", kill_on_drop: false }`
[INFO] [stderr]    Compiling mustang v0.14.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] running `Command { std: "docker" "inspect" "fa3f8c511ac5a642a4d7fb41b6ce1225368e4ea51f6f2388a4f0bd25161bcf29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa3f8c511ac5a642a4d7fb41b6ce1225368e4ea51f6f2388a4f0bd25161bcf29", kill_on_drop: false }`
[INFO] [stdout] fa3f8c511ac5a642a4d7fb41b6ce1225368e4ea51f6f2388a4f0bd25161bcf29
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b000707e7f3a03b5d05f5ec7c2a117cef251061a64966232281d4ef6dcc9c94d
[INFO] running `Command { std: "docker" "start" "-a" "b000707e7f3a03b5d05f5ec7c2a117cef251061a64966232281d4ef6dcc9c94d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.148
[INFO] [stderr]    Compiling proc-macro2 v1.0.67
[INFO] [stderr]    Compiling rustix v0.38.17
[INFO] [stderr]    Compiling memchr v2.6.4
[INFO] [stderr]    Compiling bitflags v2.4.0
[INFO] [stderr]    Compiling linux-raw-sys v0.4.8
[INFO] [stderr]    Compiling unicode-segmentation v1.10.1
[INFO] [stderr]    Compiling home v0.5.5
[INFO] [stderr]    Compiling bstr v0.2.17
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling similar v2.2.1
[INFO] [stderr]    Compiling getrandom v0.2.10
[INFO] [stderr]    Compiling console v0.15.7
[INFO] [stderr]    Compiling syn v2.0.37
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand_xorshift v0.3.0
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling similar-asserts v1.5.0
[INFO] [stderr]    Compiling which v4.4.2
[INFO] [stderr]    Compiling ctor v0.2.5
[INFO] [stderr]    Compiling mustang v0.14.4 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> tests/examples.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(cfg_target_abi)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> tests/lazy.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(once_cell_try)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> tests/lazy.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | #![feature(lazy_cell)]
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> tests/sync-lazy_lock.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(lazy_cell)]
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mustang` (test "examples") due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mustang` (test "sync-lazy_lock") due to 2 previous errors
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mustang` (test "lazy") due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "b000707e7f3a03b5d05f5ec7c2a117cef251061a64966232281d4ef6dcc9c94d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b000707e7f3a03b5d05f5ec7c2a117cef251061a64966232281d4ef6dcc9c94d", kill_on_drop: false }`
[INFO] [stdout] b000707e7f3a03b5d05f5ec7c2a117cef251061a64966232281d4ef6dcc9c94d
