[INFO] cloning repository https://github.com/PeterCxy/yad
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/PeterCxy/yad" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPeterCxy%2Fyad", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPeterCxy%2Fyad'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ab88b0b8c36881d90811723437d4e22ebb28417a
[INFO] testing PeterCxy/yad against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPeterCxy%2Fyad" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/PeterCxy/yad 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 git repo https://github.com/PeterCxy/yad
[INFO] finished tweaking git repo https://github.com/PeterCxy/yad
[INFO] tweaked toml for git repo https://github.com/PeterCxy/yad written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/PeterCxy/yad already has a lockfile, it will not be regenerated
[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-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] bf385b2e72837c568af0668b80d201dbc26a818c21214411742aa0cfc8073065
[INFO] running `Command { std: "docker" "start" "-a" "bf385b2e72837c568af0668b80d201dbc26a818c21214411742aa0cfc8073065", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bf385b2e72837c568af0668b80d201dbc26a818c21214411742aa0cfc8073065", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf385b2e72837c568af0668b80d201dbc26a818c21214411742aa0cfc8073065", kill_on_drop: false }`
[INFO] [stdout] bf385b2e72837c568af0668b80d201dbc26a818c21214411742aa0cfc8073065
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] b2ba1af6afda5e28e39a49d00722cf7674524b93d3d51bc2bbb4ef90f554396a
[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" "b2ba1af6afda5e28e39a49d00722cf7674524b93d3d51bc2bbb4ef90f554396a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.43
[INFO] [stderr]    Compiling cfg-if v0.1.5
[INFO] [stderr]    Compiling version_check v0.1.4
[INFO] [stderr]    Compiling futures v0.1.24
[INFO] [stderr]    Compiling byteorder v1.2.6
[INFO] [stderr]    Compiling cc v1.0.23
[INFO] [stderr]    Compiling rand_core v0.2.1
[INFO] [stderr]    Compiling slab v0.4.1
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling lazycell v1.0.0
[INFO] [stderr]    Compiling untrusted v0.6.2
[INFO] [stderr]    Compiling httparse v1.3.2
[INFO] [stderr]    Compiling itoa v0.4.2
[INFO] [stderr]    Compiling indexmap v1.0.1
[INFO] [stderr]    Compiling rustc-demangle v0.1.9
[INFO] [stderr]    Compiling scoped-tls v0.1.2
[INFO] [stderr]    Compiling owning_ref v0.3.3
[INFO] [stderr]    Compiling log v0.4.5
[INFO] [stderr]    Compiling unreachable v1.0.0
[INFO] [stderr]    Compiling lock_api v0.1.3
[INFO] [stderr]    Compiling smallvec v0.6.5
[INFO] [stderr]    Compiling base64 v0.9.2
[INFO] [stderr]    Compiling lazy_static v1.1.0
[INFO] [stderr]    Compiling iovec v0.1.2
[INFO] [stderr]    Compiling rand v0.5.5
[INFO] [stderr]    Compiling num_cpus v1.8.0
[INFO] [stderr]    Compiling net2 v0.2.33
[INFO] [stderr]    Compiling time v0.1.40
[INFO] [stderr]    Compiling terminal_size v0.1.8
[INFO] [stderr]    Compiling bytes v0.4.10
[INFO] [stderr]    Compiling mio v0.6.16
[INFO] [stderr]    Compiling crossbeam-epoch v0.5.2
[INFO] [stderr]    Compiling ring v0.13.2
[INFO] [stderr]    Compiling backtrace-sys v0.1.24
[INFO] [stderr]    Compiling http v0.1.11
[INFO] [stderr]    Compiling crossbeam-deque v0.6.1
[INFO] [stderr]    Compiling tokio-executor v0.1.4
[INFO] [stderr]    Compiling tokio-io v0.1.8
[INFO] [stderr]    Compiling futures-cpupool v0.1.8
[INFO] [stderr]    Compiling want v0.0.6
[INFO] [stderr]    Compiling parking_lot_core v0.3.0
[INFO] [stderr]    Compiling mio-uds v0.6.7
[INFO] [stderr]    Compiling backtrace v0.3.9
[INFO] [stderr]    Compiling tokio-threadpool v0.1.6
[INFO] [stderr]    Compiling tokio-timer v0.2.6
[INFO] [stderr]    Compiling tokio-current-thread v0.1.1
[INFO] [stderr]    Compiling parking_lot v0.6.4
[INFO] [stderr]    Compiling error-chain v0.12.0
[INFO] [stderr]    Compiling tokio-codec v0.1.0
[INFO] [stderr]    Compiling tokio-reactor v0.1.5
[INFO] [stderr]    Compiling tokio-fs v0.1.3
[INFO] [stderr]    Compiling tokio-uds v0.2.1
[INFO] [stderr]    Compiling tokio-tcp v0.1.1
[INFO] [stderr]    Compiling tokio-udp v0.1.2
[INFO] [stderr]    Compiling tokio v0.1.8
[INFO] [stderr]    Compiling h2 v0.1.12
[INFO] [stderr]    Compiling tokio-core v0.1.17
[INFO] [stderr]    Compiling webpki v0.18.1
[INFO] [stderr]    Compiling sct v0.4.0
[INFO] [stderr]    Compiling ct-logs v0.4.0
[INFO] [stderr]    Compiling rustls v0.13.1
[INFO] [stderr]    Compiling webpki-roots v0.15.0
[INFO] [stderr]    Compiling hyper v0.12.9
[INFO] [stderr]    Compiling tokio-rustls v0.7.2
[INFO] [stderr]    Compiling hyper-rustls v0.14.0
[INFO] [stderr]    Compiling yad v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(integer_atomics)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `errors::*`
[INFO] [stdout]  --> src/worker.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use errors::*;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/main.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | /     error_chain! {
[INFO] [stdout] 17 | |         foreign_links {
[INFO] [stdout] 18 | |             HyperError(::hyper::Error);
[INFO] [stdout] 19 | |             ToStrError(::hyper::header::ToStrError);
[INFO] [stdout] 20 | |             TokioIoError(::tokio::io::Error);
[INFO] [stdout] 21 | |         }
[INFO] [stdout] 22 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/main.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | /     error_chain! {
[INFO] [stdout] 17 | |         foreign_links {
[INFO] [stdout] 18 | |             HyperError(::hyper::Error);
[INFO] [stdout] 19 | |             ToStrError(::hyper::header::ToStrError);
[INFO] [stdout] 20 | |             TokioIoError(::tokio::io::Error);
[INFO] [stdout] 21 | |         }
[INFO] [stdout] 22 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::cause`: replaced by Error::source, which can support downcasting
[INFO] [stdout]   --> src/main.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | /     error_chain! {
[INFO] [stdout] 17 | |         foreign_links {
[INFO] [stdout] 18 | |             HyperError(::hyper::Error);
[INFO] [stdout] 19 | |             ToStrError(::hyper::header::ToStrError);
[INFO] [stdout] 20 | |             TokioIoError(::tokio::io::Error);
[INFO] [stdout] 21 | |         }
[INFO] [stdout] 22 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `yad`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "b2ba1af6afda5e28e39a49d00722cf7674524b93d3d51bc2bbb4ef90f554396a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2ba1af6afda5e28e39a49d00722cf7674524b93d3d51bc2bbb4ef90f554396a", kill_on_drop: false }`
[INFO] [stdout] b2ba1af6afda5e28e39a49d00722cf7674524b93d3d51bc2bbb4ef90f554396a