[INFO] cloning repository https://github.com/luser/failure-errorchain
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/luser/failure-errorchain" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluser%2Ffailure-errorchain", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluser%2Ffailure-errorchain'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 00ae533f7d6e03b2ac77e5eb8a7249394296c96f
[INFO] testing luser/failure-errorchain against beta-2021-01-01 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluser%2Ffailure-errorchain" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/luser/failure-errorchain on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/luser/failure-errorchain
[INFO] finished tweaking git repo https://github.com/luser/failure-errorchain
[INFO] tweaked toml for git repo https://github.com/luser/failure-errorchain written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/luser/failure-errorchain already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 87e643bad6ec51e1a392004cc23c00498d3f1867133f934b9bfa260cbb4ee055
[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" "87e643bad6ec51e1a392004cc23c00498d3f1867133f934b9bfa260cbb4ee055", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "87e643bad6ec51e1a392004cc23c00498d3f1867133f934b9bfa260cbb4ee055", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "87e643bad6ec51e1a392004cc23c00498d3f1867133f934b9bfa260cbb4ee055", kill_on_drop: false }`
[INFO] [stdout] 87e643bad6ec51e1a392004cc23c00498d3f1867133f934b9bfa260cbb4ee055
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 365c4256da05524b3575db8e6b3f9380b872dd12258d64fa135abb6553cbc3f3
[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" "365c4256da05524b3575db8e6b3f9380b872dd12258d64fa135abb6553cbc3f3", kill_on_drop: false }`
[INFO] [stderr]    Compiling backtrace-sys v0.1.16
[INFO] [stderr]    Compiling backtrace v0.3.4
[INFO] [stderr]    Compiling error-chain v0.11.0
[INFO] [stderr]    Compiling failure v0.1.1
[INFO] [stderr]    Compiling failure-errorchain v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0277]: `(dyn std::error::Error + Send + 'static)` cannot be shared between threads safely
[INFO] [stdout]   --> src/lib.rs:23:13
[INFO] [stdout]    |
[INFO] [stdout] 23 |     a::foo()?;
[INFO] [stdout]    |             ^ `(dyn std::error::Error + Send + 'static)` cannot be shared between threads safely
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `Sync` is not implemented for `(dyn std::error::Error + Send + 'static)`
[INFO] [stdout]    = note: required because of the requirements on the impl of `Sync` for `Unique<(dyn std::error::Error + Send + 'static)>`
[INFO] [stdout]    = note: required because it appears within the type `Box<(dyn std::error::Error + Send + 'static)>`
[INFO] [stdout]    = note: required because it appears within the type `Option<Box<(dyn std::error::Error + Send + 'static)>>`
[INFO] [stdout]    = note: required because it appears within the type `State`
[INFO] [stdout]    = note: required because it appears within the type `a::error::Error`
[INFO] [stdout]    = note: required because of the requirements on the impl of `Fail` for `a::error::Error`
[INFO] [stdout]    = note: required because of the requirements on the impl of `From<a::error::Error>` for `failure::Error`
[INFO] [stdout]    = note: required by `from`
[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 E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `failure-errorchain`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "365c4256da05524b3575db8e6b3f9380b872dd12258d64fa135abb6553cbc3f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "365c4256da05524b3575db8e6b3f9380b872dd12258d64fa135abb6553cbc3f3", kill_on_drop: false }`
[INFO] [stdout] 365c4256da05524b3575db8e6b3f9380b872dd12258d64fa135abb6553cbc3f3