[INFO] cloning repository https://github.com/mapmeld/rust-experiment
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mapmeld/rust-experiment" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmapmeld%2Frust-experiment", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmapmeld%2Frust-experiment'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3f0590445d07ddf2c06b92dc84b99fd226c77ac1
[INFO] testing mapmeld/rust-experiment against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmapmeld%2Frust-experiment" "/workspace/builds/worker-43/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-43/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mapmeld/rust-experiment on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mapmeld/rust-experiment
[INFO] finished tweaking git repo https://github.com/mapmeld/rust-experiment
[INFO] tweaked toml for git repo https://github.com/mapmeld/rust-experiment written to /workspace/builds/worker-43/source/Cargo.toml
[INFO] crate git repo https://github.com/mapmeld/rust-experiment already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: path `/workspace/builds/worker-43/source/src/hello.rs` was erroneously implicitly accepted for binary `hello`,
[INFO] [stderr] please set bin.path in Cargo.toml
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 652fae05dce5c6a99917b4229b09fa5561579dbd244d20807085b01426317789
[INFO] running `Command { std: "docker" "start" "-a" "652fae05dce5c6a99917b4229b09fa5561579dbd244d20807085b01426317789", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "652fae05dce5c6a99917b4229b09fa5561579dbd244d20807085b01426317789", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "652fae05dce5c6a99917b4229b09fa5561579dbd244d20807085b01426317789", kill_on_drop: false }`
[INFO] [stdout] 652fae05dce5c6a99917b4229b09fa5561579dbd244d20807085b01426317789
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a590652895a9f35464eaf7727563d055e7decfc749a3b05431c33a40897e1bb7
[INFO] running `Command { std: "docker" "start" "-a" "a590652895a9f35464eaf7727563d055e7decfc749a3b05431c33a40897e1bb7", kill_on_drop: false }`
[INFO] [stderr] warning: path `/opt/rustwide/workdir/src/hello.rs` was erroneously implicitly accepted for binary `hello`,
[INFO] [stderr] please set bin.path in Cargo.toml
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]    Compiling libc v0.2.16
[INFO] [stderr]    Compiling winapi v0.2.8
[INFO] [stderr]    Compiling semver v0.1.20
[INFO] [stderr]    Compiling log v0.3.6
[INFO] [stderr]    Compiling matches v0.1.2
[INFO] [stderr]    Compiling traitobject v0.0.3
[INFO] [stderr]    Compiling unicode-normalization v0.1.2
[INFO] [stderr]    Compiling rustc-serialize v0.3.19
[INFO] [stderr]    Compiling typeable v0.1.2
[INFO] [stderr]    Compiling lazy_static v0.1.16
[INFO] [stderr]    Compiling httparse v1.1.2
[INFO] [stderr]    Compiling traitobject v0.0.1
[INFO] [stderr]    Compiling language-tags v0.2.2
[INFO] [stderr]    Compiling modifier v0.1.0
[INFO] [stderr]    Compiling regex-syntax v0.3.5
[INFO] [stderr]    Compiling utf8-ranges v0.1.3
[INFO] [stderr]    Compiling quick-error v1.1.0
[INFO] [stderr]    Compiling sequence_trie v0.0.13
[INFO] [stderr]    Compiling pest v0.3.3
[INFO] [stderr]    Compiling route-recognizer v0.1.11
[INFO] [stdout] error[E0642]: patterns aren't allowed in functions without bodies
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-serialize-0.3.19/src/serialize.rs:147:45
[INFO] [stdout]     |
[INFO] [stdout] 147 | ...                   &f_name: &str,
[INFO] [stdout]     |                       ^^^^^^^ pattern not allowed in function without body
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rustc-serialize` due to 2 previous errors
[INFO] [stdout] For more information about this error, try `rustc --explain E0642`.
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "a590652895a9f35464eaf7727563d055e7decfc749a3b05431c33a40897e1bb7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a590652895a9f35464eaf7727563d055e7decfc749a3b05431c33a40897e1bb7", kill_on_drop: false }`
[INFO] [stdout] a590652895a9f35464eaf7727563d055e7decfc749a3b05431c33a40897e1bb7