[INFO] fetching crate get_len_base_10_as_usize_macros 0.1.9...
[INFO] testing get_len_base_10_as_usize_macros-0.1.9 against 1.59.0 for beta-1.60-1
[INFO] extracting crate get_len_base_10_as_usize_macros 0.1.9 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate get_len_base_10_as_usize_macros 0.1.9 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate get_len_base_10_as_usize_macros 0.1.9
[INFO] finished tweaking crates.io crate get_len_base_10_as_usize_macros 0.1.9
[INFO] tweaked toml for crates.io crate get_len_base_10_as_usize_macros 0.1.9 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 441ad64eba83407a4c9472edc438ce729c8e1609f0e5f1c32eb3464442aa0bbf
[INFO] running `Command { std: "docker" "start" "-a" "441ad64eba83407a4c9472edc438ce729c8e1609f0e5f1c32eb3464442aa0bbf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "441ad64eba83407a4c9472edc438ce729c8e1609f0e5f1c32eb3464442aa0bbf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "441ad64eba83407a4c9472edc438ce729c8e1609f0e5f1c32eb3464442aa0bbf", kill_on_drop: false }`
[INFO] [stdout] 441ad64eba83407a4c9472edc438ce729c8e1609f0e5f1c32eb3464442aa0bbf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a3978be98142f942b814430596e4cadf8978ec30b7afda9cc3620f476e73f76f
[INFO] running `Command { std: "docker" "start" "-a" "a3978be98142f942b814430596e4cadf8978ec30b7afda9cc3620f476e73f76f", kill_on_drop: false }`
[INFO] [stderr]    Compiling epui v0.1.1
[INFO] [stderr]    Compiling primitive_promotion v0.1.4
[INFO] [stderr]    Compiling epsi v0.1.1
[INFO] [stderr]    Compiling max_len_base_10_as_usize v0.1.0
[INFO] [stderr]    Compiling is_signed_trait v0.1.0
[INFO] [stderr]    Compiling midpoint v0.1.5
[INFO] [stderr]    Compiling get_len_base_10_as_usize_macros v0.1.9 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.93s
[INFO] running `Command { std: "docker" "inspect" "a3978be98142f942b814430596e4cadf8978ec30b7afda9cc3620f476e73f76f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a3978be98142f942b814430596e4cadf8978ec30b7afda9cc3620f476e73f76f", kill_on_drop: false }`
[INFO] [stdout] a3978be98142f942b814430596e4cadf8978ec30b7afda9cc3620f476e73f76f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9ee5ba276b484785d1bd5d6247a0d545d6553cee5cd2fcf67d6bb599f3504a03
[INFO] running `Command { std: "docker" "start" "-a" "9ee5ba276b484785d1bd5d6247a0d545d6553cee5cd2fcf67d6bb599f3504a03", kill_on_drop: false }`
[INFO] [stderr]    Compiling get_len_base_10_as_usize_macros v0.1.9 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     feature(const_trait_impl)
[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 `get_len_base_10_as_usize_macros` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "9ee5ba276b484785d1bd5d6247a0d545d6553cee5cd2fcf67d6bb599f3504a03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ee5ba276b484785d1bd5d6247a0d545d6553cee5cd2fcf67d6bb599f3504a03", kill_on_drop: false }`
[INFO] [stdout] 9ee5ba276b484785d1bd5d6247a0d545d6553cee5cd2fcf67d6bb599f3504a03