[INFO] fetching crate seax_scheme 0.3.0...
[INFO] testing seax_scheme-0.3.0 against 1.59.0 for beta-1.60-1
[INFO] extracting crate seax_scheme 0.3.0 into /workspace/builds/worker-20/source
[INFO] validating manifest of crates.io crate seax_scheme 0.3.0 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 seax_scheme 0.3.0
[INFO] finished tweaking crates.io crate seax_scheme 0.3.0
[INFO] tweaked toml for crates.io crate seax_scheme 0.3.0 written to /workspace/builds/worker-20/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] [stderr]     Blocking waiting for file lock on package cache
[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-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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] 11af93a9647e020df2d28267b0bb8545e564cfce75b240c62d5987662e4a283a
[INFO] running `Command { std: "docker" "start" "-a" "11af93a9647e020df2d28267b0bb8545e564cfce75b240c62d5987662e4a283a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "11af93a9647e020df2d28267b0bb8545e564cfce75b240c62d5987662e4a283a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11af93a9647e020df2d28267b0bb8545e564cfce75b240c62d5987662e4a283a", kill_on_drop: false }`
[INFO] [stdout] 11af93a9647e020df2d28267b0bb8545e564cfce75b240c62d5987662e4a283a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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] be2ff066cd67abb5f4b319941e0654d75da76bf95af8ac11e5012bb411411d18
[INFO] running `Command { std: "docker" "start" "-a" "be2ff066cd67abb5f4b319941e0654d75da76bf95af8ac11e5012bb411411d18", kill_on_drop: false }`
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling parser-combinators v0.2.6
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling seax_svm v0.2.8
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/seax_svm-0.2.8/src/lib.rs:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | #![feature(box_patterns)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the size for values of type `Self` cannot be known at compilation time
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/seax_svm-0.2.8/src/slist.rs:41:32
[INFO] [stdout]     |
[INFO] [stdout] 41  |     fn pop(self)            -> Option<(T, Self)>;
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^ doesn't have a size known at compile-time
[INFO] [stdout]     |
[INFO] [stdout]     = note: required because it appears within the type `(T, Self)`
[INFO] [stdout] note: required by a bound in `Option`
[INFO] [stdout] help: consider further restricting `Self`
[INFO] [stdout]     |
[INFO] [stdout] 41  |     fn pop(self)            -> Option<(T, Self)> where Self: Sized;
[INFO] [stdout]     |                                                  +++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0554.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `seax_svm` due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "be2ff066cd67abb5f4b319941e0654d75da76bf95af8ac11e5012bb411411d18", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be2ff066cd67abb5f4b319941e0654d75da76bf95af8ac11e5012bb411411d18", kill_on_drop: false }`
[INFO] [stdout] be2ff066cd67abb5f4b319941e0654d75da76bf95af8ac11e5012bb411411d18