[INFO] cloning repository https://github.com/ByungSunBae/rust_pyo3
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ByungSunBae/rust_pyo3" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FByungSunBae%2Frust_pyo3", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FByungSunBae%2Frust_pyo3'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 92007c16d07d8e34c6be3c832f2a20a6c14ad3cc
[INFO] testing ByungSunBae/rust_pyo3 against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FByungSunBae%2Frust_pyo3" "/workspace/builds/worker-15/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-15/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ByungSunBae/rust_pyo3 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ByungSunBae/rust_pyo3
[INFO] finished tweaking git repo https://github.com/ByungSunBae/rust_pyo3
[INFO] tweaked toml for git repo https://github.com/ByungSunBae/rust_pyo3 written to /workspace/builds/worker-15/source/Cargo.toml
[INFO] crate git repo https://github.com/ByungSunBae/rust_pyo3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: target.x86_64-apple-darwin.rustflags
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded inventory-impl v0.1.5
[INFO] [stderr]   Downloaded pyo3cls v0.9.0-alpha.1
[INFO] [stderr]   Downloaded ctor v0.1.12
[INFO] [stderr]   Downloaded pyo3 v0.9.0-alpha.1
[INFO] [stderr]   Downloaded inventory v0.1.5
[INFO] [stderr]   Downloaded pyo3-derive-backend v0.9.0-alpha.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fc1e6873f3e7e218395f2861a147426157ec0b62b142e15de7785e2284d867d3
[INFO] running `Command { std: "docker" "start" "-a" "fc1e6873f3e7e218395f2861a147426157ec0b62b142e15de7785e2284d867d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fc1e6873f3e7e218395f2861a147426157ec0b62b142e15de7785e2284d867d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc1e6873f3e7e218395f2861a147426157ec0b62b142e15de7785e2284d867d3", kill_on_drop: false }`
[INFO] [stdout] fc1e6873f3e7e218395f2861a147426157ec0b62b142e15de7785e2284d867d3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 58725d0958a76b72aaa7d7d69f69ea240d1c34e7a408123ded907e5e60a9e755
[INFO] running `Command { std: "docker" "start" "-a" "58725d0958a76b72aaa7d7d69f69ea240d1c34e7a408123ded907e5e60a9e755", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: target.x86_64-apple-darwin.rustflags
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.8
[INFO] [stderr]    Compiling syn v1.0.14
[INFO] [stderr]    Compiling memchr v2.3.0
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling itoa v0.4.5
[INFO] [stderr]    Compiling regex-syntax v0.6.13
[INFO] [stderr]    Compiling unindent v0.1.5
[INFO] [stderr]    Compiling scopeguard v1.0.0
[INFO] [stderr]    Compiling smallvec v1.1.0
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling lock_api v0.3.3
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/lock_api-0.3.3/src/lib.rs:89:42
[INFO] [stdout]    |
[INFO] [stdout] 89 | #![cfg_attr(feature = "nightly", feature(const_fn))]
[INFO] [stdout]    |                                          ^^^^^^^^ feature has been removed
[INFO] [stdout]    |
[INFO] [stdout]    = note: split into finer-grained feature gates
[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 E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `lock_api` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "58725d0958a76b72aaa7d7d69f69ea240d1c34e7a408123ded907e5e60a9e755", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "58725d0958a76b72aaa7d7d69f69ea240d1c34e7a408123ded907e5e60a9e755", kill_on_drop: false }`
[INFO] [stdout] 58725d0958a76b72aaa7d7d69f69ea240d1c34e7a408123ded907e5e60a9e755