[INFO] fetching crate zermelo-cli 0.2.3...
[INFO] testing zermelo-cli-0.2.3 against 1.69.0 for beta-1.70-1
[INFO] extracting crate zermelo-cli 0.2.3 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate zermelo-cli 0.2.3 on toolchain 1.69.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate zermelo-cli 0.2.3
[INFO] finished tweaking crates.io crate zermelo-cli 0.2.3
[INFO] tweaked toml for crates.io crate zermelo-cli 0.2.3 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate crates.io crate zermelo-cli 0.2.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f903709a6e94b51050243989f371af7a15ae795677ae3c4f79a62293207f3e26
[INFO] running `Command { std: "docker" "start" "-a" "f903709a6e94b51050243989f371af7a15ae795677ae3c4f79a62293207f3e26", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f903709a6e94b51050243989f371af7a15ae795677ae3c4f79a62293207f3e26", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f903709a6e94b51050243989f371af7a15ae795677ae3c4f79a62293207f3e26", kill_on_drop: false }`
[INFO] [stdout] f903709a6e94b51050243989f371af7a15ae795677ae3c4f79a62293207f3e26
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "RUSTDOCFLAGS=--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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2a01d2c6d7c3bc285a0467a2aec32a8b0f2e922abe703161805f19b7dfb7cdfd
[INFO] running `Command { std: "docker" "start" "-a" "2a01d2c6d7c3bc285a0467a2aec32a8b0f2e922abe703161805f19b7dfb7cdfd", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.119
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling pkg-config v0.3.24
[INFO] [stderr]    Compiling pin-project-lite v0.2.8
[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling itoa v1.0.1
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling futures-task v0.3.21
[INFO] [stderr]    Compiling indexmap v1.8.0
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]    Compiling http v0.2.6
[INFO] [stderr]    Compiling tracing-core v0.1.23
[INFO] [stderr]    Compiling futures-channel v0.3.21
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]    Compiling socket2 v0.4.4
[INFO] [stderr]    Compiling num_cpus v1.13.1
[INFO] [stderr]    Compiling mio v0.8.1
[INFO] [stderr]    Compiling openssl-sys v0.9.72
[INFO] [stderr]    Compiling once_cell v1.10.0
[INFO] [stderr]    Compiling httparse v1.6.0
[INFO] [stderr]    Compiling futures-sink v0.3.21
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling futures-io v0.3.21
[INFO] [stderr]    Compiling tokio v1.17.0
[INFO] [stderr]    Compiling tinyvec v1.5.1
[INFO] [stderr]    Compiling tracing v0.1.32
[INFO] [stderr]    Compiling openssl v0.10.38
[INFO] [stderr]    Compiling native-tls v0.2.8
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling http-body v0.4.4
[INFO] [stderr]    Compiling unicode-normalization v0.1.19
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling serde_json v1.0.79
[INFO] [stderr]    Compiling encoding_rs v0.8.30
[INFO] [stderr]    Compiling ryu v1.0.9
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling idna v0.2.3
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling ipnet v2.4.0
[INFO] [stderr]    Compiling url v2.2.2
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling tokio-util v0.6.9
[INFO] [stderr]    Compiling colored v2.0.0
[INFO] [stderr]    Compiling h2 v0.3.12
[INFO] [stderr]    Compiling tokio-native-tls v0.3.0
[INFO] [stderr]    Compiling hyper v0.14.17
[INFO] [stderr]    Compiling serde_urlencoded v0.7.1
[INFO] [stderr]    Compiling hyper-tls v0.5.0
[INFO] [stderr]    Compiling reqwest v0.11.9
[INFO] [stderr]    Compiling zermelo-cli v0.2.3 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(drain_filter)]
[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 `zermelo-cli` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "2a01d2c6d7c3bc285a0467a2aec32a8b0f2e922abe703161805f19b7dfb7cdfd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a01d2c6d7c3bc285a0467a2aec32a8b0f2e922abe703161805f19b7dfb7cdfd", kill_on_drop: false }`
[INFO] [stdout] 2a01d2c6d7c3bc285a0467a2aec32a8b0f2e922abe703161805f19b7dfb7cdfd
