[INFO] fetching crate discrab 0.5.0...
[INFO] testing discrab-0.5.0 against 1.69.0 for beta-1.70-1
[INFO] extracting crate discrab 0.5.0 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate discrab 0.5.0 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 discrab 0.5.0
[INFO] finished tweaking crates.io crate discrab 0.5.0
[INFO] tweaked toml for crates.io crate discrab 0.5.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate crates.io crate discrab 0.5.0 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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded security-framework-sys v2.4.2
[INFO] [stderr]   Downloaded httpdate v1.0.1
[INFO] [stderr]   Downloaded cc v1.0.71
[INFO] [stderr]   Downloaded serde_json v1.0.69
[INFO] [stderr]   Downloaded serde_repr v0.1.7
[INFO] [stderr]   Downloaded async-std v1.10.0
[INFO] [stderr]   Downloaded polling v2.1.0
[INFO] [stderr]   Downloaded wasm-bindgen-futures v0.4.28
[INFO] [stderr]   Downloaded pkg-config v0.3.22
[INFO] [stderr]   Downloaded security-framework v2.4.2
[INFO] [stderr]   Downloaded web-sys v0.3.55
[INFO] [stderr]   Downloaded h2 v0.3.7
[INFO] [stderr]   Downloaded tokio-util v0.6.9
[INFO] [stderr]   Downloaded serde_derive v1.0.130
[INFO] [stderr]   Downloaded hyper v0.14.14
[INFO] [stderr]   Downloaded httparse v1.5.1
[INFO] [stderr]   Downloaded tokio v1.13.0
[INFO] [stderr]   Downloaded libc v0.2.107
[INFO] [stderr]   Downloaded ppv-lite86 v0.2.15
[INFO] [stderr]   Downloaded tokio-macros v1.5.1
[INFO] [stderr]   Downloaded ctor v0.1.21
[INFO] [stderr]   Downloaded value-bag v1.0.0-alpha.8
[INFO] [stderr]   Downloaded openssl-sys v0.9.70
[INFO] [stderr]   Downloaded syn v1.0.92
[INFO] [stderr]   Downloaded discrab_codegen v0.5.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 835c16b1bf2bce9c24f7538cef85e30b013b29aa603695e61b42d836ad4bb3ad
[INFO] running `Command { std: "docker" "start" "-a" "835c16b1bf2bce9c24f7538cef85e30b013b29aa603695e61b42d836ad4bb3ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "835c16b1bf2bce9c24f7538cef85e30b013b29aa603695e61b42d836ad4bb3ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "835c16b1bf2bce9c24f7538cef85e30b013b29aa603695e61b42d836ad4bb3ad", kill_on_drop: false }`
[INFO] [stdout] 835c16b1bf2bce9c24f7538cef85e30b013b29aa603695e61b42d836ad4bb3ad
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 23779f57ff08a1d1668d6c44b7e761bd25bc7c566c8d3bfa9b7b168a5308570c
[INFO] running `Command { std: "docker" "start" "-a" "23779f57ff08a1d1668d6c44b7e761bd25bc7c566c8d3bfa9b7b168a5308570c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.37
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.92
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling libc v0.2.107
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling pin-project-lite v0.2.7
[INFO] [stderr]    Compiling futures-core v0.3.19
[INFO] [stderr]    Compiling once_cell v1.8.0
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling value-bag v1.0.0-alpha.8
[INFO] [stderr]    Compiling bytes v1.1.0
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]    Compiling instant v0.1.12
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling pkg-config v0.3.22
[INFO] [stderr]    Compiling cc v1.0.71
[INFO] [stderr]    Compiling smallvec v1.7.0
[INFO] [stderr]    Compiling lock_api v0.4.5
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling tokio v1.13.0
[INFO] [stderr]    Compiling signal-hook-registry v1.4.0
[INFO] [stderr]    Compiling num_cpus v1.13.0
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[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling tracing-core v0.1.21
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[INFO] [stderr]    Compiling async-task v4.0.3
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[INFO] [stderr]    Compiling unicode-bidi v0.3.7
[INFO] [stderr]    Compiling percent-encoding v2.1.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling serde_derive v1.0.130
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[INFO] [stderr]    Compiling tracing v0.1.29
[INFO] [stderr]    Compiling rand_chacha v0.3.1
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[INFO] [stderr]    Compiling async-channel v1.6.1
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[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling atomic-waker v1.0.0
[INFO] [stderr]    Compiling try-lock v0.2.3
[INFO] [stderr]    Compiling cpufeatures v0.2.1
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[INFO] [stderr]    Compiling sha-1 v0.9.8
[INFO] [stderr]    Compiling url v2.2.2
[INFO] [stderr]    Compiling blocking v1.0.2
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling async-executor v1.4.1
[INFO] [stderr]    Compiling http-body v0.4.4
[INFO] [stderr]    Compiling async-mutex v1.4.0
[INFO] [stderr]    Compiling utf-8 v0.7.6
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling serde_json v1.0.69
[INFO] [stderr]    Compiling base64 v0.13.0
[INFO] [stderr]    Compiling async-trait v0.1.52
[INFO] [stderr]    Compiling httpdate v1.0.1
[INFO] [stderr]    Compiling tower-service v0.3.1
[INFO] [stderr]    Compiling async-lock v2.4.0
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling ctor v0.1.21
[INFO] [stderr]    Compiling tokio-macros v1.5.1
[INFO] [stderr]    Compiling futures-macro v0.3.19
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling serde_repr v0.1.7
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling discrab_codegen v0.5.0
[INFO] [stderr]    Compiling crossbeam-channel v0.5.1
[INFO] [stderr]    Compiling mio v0.7.14
[INFO] [stderr]    Compiling polling v2.1.0
[INFO] [stderr]    Compiling want v0.3.0
[INFO] [stderr]    Compiling async-io v1.6.0
[INFO] [stderr]    Compiling thiserror v1.0.30
[INFO] [stderr]    Compiling tungstenite v0.16.0
[INFO] [stderr]    Compiling kv-log-macro v1.0.7
[INFO] [stderr]    Compiling paste v1.0.7
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling bitfield v0.13.2
[INFO] [stderr]    Compiling tokio-util v0.6.9
[INFO] [stderr]    Compiling tokio-native-tls v0.3.0
[INFO] [stderr]    Compiling async-global-executor v2.0.2
[INFO] [stderr]    Compiling tokio-tungstenite v0.16.1
[INFO] [stderr]    Compiling async-std v1.10.0
[INFO] [stderr]    Compiling h2 v0.3.7
[INFO] [stderr]    Compiling hyper v0.14.14
[INFO] [stderr]    Compiling hyper-tls v0.5.0
[INFO] [stderr]    Compiling discrab v0.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(in_band_lifetimes)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: removed due to unsolved ergonomic questions and added lifetime resolution complexity
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `util::logger::print_debug`
[INFO] [stdout]  --> src/core/abstraction/observer.rs:3:22
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::{Context, util::logger::print_debug};
[INFO] [stdout]   |                      ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `discrab` due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "23779f57ff08a1d1668d6c44b7e761bd25bc7c566c8d3bfa9b7b168a5308570c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23779f57ff08a1d1668d6c44b7e761bd25bc7c566c8d3bfa9b7b168a5308570c", kill_on_drop: false }`
[INFO] [stdout] 23779f57ff08a1d1668d6c44b7e761bd25bc7c566c8d3bfa9b7b168a5308570c
