[INFO] fetching crate t-rust-less-lib 0.1.11...
[INFO] testing t-rust-less-lib-0.1.11 against 1.49.0 for beta-1.50-1
[INFO] extracting crate t-rust-less-lib 0.1.11 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate t-rust-less-lib 0.1.11 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate t-rust-less-lib 0.1.11
[INFO] finished tweaking crates.io crate t-rust-less-lib 0.1.11
[INFO] tweaked toml for crates.io crate t-rust-less-lib 0.1.11 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 38d017edf0dded7e04e88d01c8f7fcf757248a1bc1e1889e627b7a638d7b5c93
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "38d017edf0dded7e04e88d01c8f7fcf757248a1bc1e1889e627b7a638d7b5c93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "38d017edf0dded7e04e88d01c8f7fcf757248a1bc1e1889e627b7a638d7b5c93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "38d017edf0dded7e04e88d01c8f7fcf757248a1bc1e1889e627b7a638d7b5c93", kill_on_drop: false }`
[INFO] [stdout] 38d017edf0dded7e04e88d01c8f7fcf757248a1bc1e1889e627b7a638d7b5c93
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e80a1f9732a842755d6c47235fd6a6e1fe5ae81738eeec960a63a7d6b642b1fc
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "e80a1f9732a842755d6c47235fd6a6e1fe5ae81738eeec960a63a7d6b642b1fc", kill_on_drop: false }`
[INFO] [stderr]    Compiling capnp v0.14.0
[INFO] [stderr]    Compiling bit-vec v0.6.3
[INFO] [stderr]    Compiling openssl v0.10.32
[INFO] [stderr]    Compiling capnp v0.13.6
[INFO] [stderr]    Compiling quick-error v2.0.0
[INFO] [stderr]    Compiling sublime_fuzzy v0.7.0
[INFO] [stderr]    Compiling x11 v2.18.2
[INFO] [stderr]    Compiling itertools v0.10.0
[INFO] [stderr]    Compiling chacha20-poly1305-aead v0.1.2
[INFO] [stderr]    Compiling blake2b_simd v0.5.11
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling crypto-mac v0.10.0
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]    Compiling num-derive v0.3.3
[INFO] [stderr]    Compiling mio-uds v0.6.8
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling futures-util v0.3.8
[INFO] [stderr]    Compiling hmac v0.10.1
[INFO] [stderr]    Compiling bit-set v0.5.2
[INFO] [stderr]    Compiling tokio v0.2.24
[INFO] [stderr]    Compiling curve25519-dalek v2.1.0
[INFO] [stderr]    Compiling fancy-regex v0.4.1
[INFO] [stderr]    Compiling rust-argon2 v0.8.3
[INFO] [stderr]    Compiling capnpc v0.14.2
[INFO] [stderr]    Compiling x25519-dalek v0.6.0
[INFO] [stderr]    Compiling tokio-util v0.3.1
[INFO] [stderr]    Compiling darling_macro v0.10.2
[INFO] [stderr]    Compiling futures-executor v0.3.8
[INFO] [stderr]    Compiling darling v0.10.2
[INFO] [stderr]    Compiling derive_builder_core v0.9.0
[INFO] [stderr]    Compiling futures v0.3.8
[INFO] [stderr]    Compiling t-rust-less-lib v0.1.11 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling capnp-futures v0.13.2
[INFO] [stdout] error[E0277]: the trait bound `capnp::Error: std::error::Error` is not satisfied
[INFO] [stdout]   --> build.rs:30:13
[INFO] [stdout]    |
[INFO] [stdout] 30 |       .run()?;
[INFO] [stdout]    |             ^ the trait `std::error::Error` is not implemented for `capnp::Error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: required because of the requirements on the impl of `From<capnp::Error>` for `Box<dyn std::error::Error>`
[INFO] [stdout]    = note: required by `from`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `capnp::Error: std::error::Error` is not satisfied
[INFO] [stdout]   --> build.rs:38:13
[INFO] [stdout]    |
[INFO] [stdout] 38 |       .run()?;
[INFO] [stdout]    |             ^ the trait `std::error::Error` is not implemented for `capnp::Error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: required because of the requirements on the impl of `From<capnp::Error>` for `Box<dyn std::error::Error>`
[INFO] [stdout]    = note: required by `from`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `t-rust-less-lib`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "e80a1f9732a842755d6c47235fd6a6e1fe5ae81738eeec960a63a7d6b642b1fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e80a1f9732a842755d6c47235fd6a6e1fe5ae81738eeec960a63a7d6b642b1fc", kill_on_drop: false }`
[INFO] [stdout] e80a1f9732a842755d6c47235fd6a6e1fe5ae81738eeec960a63a7d6b642b1fc