[INFO] fetching crate uints 0.7.0...
[INFO] testing uints-0.7.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate uints 0.7.0 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate uints 0.7.0 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate uints 0.7.0
[INFO] finished tweaking crates.io crate uints 0.7.0
[INFO] tweaked toml for crates.io crate uints 0.7.0 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded fixed-array v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f6c960c42b6ff3ae0c3120cb89929ce2daf6469101e1ed73a1def8fd2cd7eb2d
[INFO] running `Command { std: "docker" "start" "-a" "f6c960c42b6ff3ae0c3120cb89929ce2daf6469101e1ed73a1def8fd2cd7eb2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f6c960c42b6ff3ae0c3120cb89929ce2daf6469101e1ed73a1def8fd2cd7eb2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6c960c42b6ff3ae0c3120cb89929ce2daf6469101e1ed73a1def8fd2cd7eb2d", kill_on_drop: false }`
[INFO] [stdout] f6c960c42b6ff3ae0c3120cb89929ce2daf6469101e1ed73a1def8fd2cd7eb2d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8a633d9e6148d25cc9f490acc9294ad4d725b74ebfd12c2d172e1f233fe33017
[INFO] running `Command { std: "docker" "start" "-a" "8a633d9e6148d25cc9f490acc9294ad4d725b74ebfd12c2d172e1f233fe33017", kill_on_drop: false }`
[INFO] [stderr]    Compiling fixed-array v0.2.0
[INFO] [stderr]    Compiling uints v0.7.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.41s
[INFO] running `Command { std: "docker" "inspect" "8a633d9e6148d25cc9f490acc9294ad4d725b74ebfd12c2d172e1f233fe33017", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a633d9e6148d25cc9f490acc9294ad4d725b74ebfd12c2d172e1f233fe33017", kill_on_drop: false }`
[INFO] [stdout] 8a633d9e6148d25cc9f490acc9294ad4d725b74ebfd12c2d172e1f233fe33017
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d1a140c91c4c586f1f0be566565c2e8ca270a76fd88c7fc779beda3898e4aa8c
[INFO] running `Command { std: "docker" "start" "-a" "d1a140c91c4c586f1f0be566565c2e8ca270a76fd88c7fc779beda3898e4aa8c", kill_on_drop: false }`
[INFO] [stderr]    Compiling uints v0.7.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0658]: use of unstable library feature 'int_log'
[INFO] [stdout]    --> src/lib.rs:293:25
[INFO] [stdout]     |
[INFO] [stdout] 293 |         assert_eq!(1u32.log2(), 0);
[INFO] [stdout]     |                         ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #70887 <https://github.com/rust-lang/rust/issues/70887> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'int_log'
[INFO] [stdout]    --> src/lib.rs:294:25
[INFO] [stdout]     |
[INFO] [stdout] 294 |         assert_eq!(2u32.log2(), 1);
[INFO] [stdout]     |                         ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #70887 <https://github.com/rust-lang/rust/issues/70887> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'int_log'
[INFO] [stdout]    --> src/lib.rs:295:25
[INFO] [stdout]     |
[INFO] [stdout] 295 |         assert_eq!(3u32.log2(), 1);
[INFO] [stdout]     |                         ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #70887 <https://github.com/rust-lang/rust/issues/70887> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'int_log'
[INFO] [stdout]    --> src/lib.rs:296:25
[INFO] [stdout]     |
[INFO] [stdout] 296 |         assert_eq!(4u32.log2(), 2);
[INFO] [stdout]     |                         ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #70887 <https://github.com/rust-lang/rust/issues/70887> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `uints` due to 5 previous errors; 1 warning emitted
[INFO] [stdout] warning: unused import: `super`
[INFO] [stdout]    --> src/lib.rs:290:9
[INFO] [stdout]     |
[INFO] [stdout] 290 |     use super::*;
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0658`.
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "d1a140c91c4c586f1f0be566565c2e8ca270a76fd88c7fc779beda3898e4aa8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1a140c91c4c586f1f0be566565c2e8ca270a76fd88c7fc779beda3898e4aa8c", kill_on_drop: false }`
[INFO] [stdout] d1a140c91c4c586f1f0be566565c2e8ca270a76fd88c7fc779beda3898e4aa8c