[INFO] fetching crate sentry-core 0.21.0...
[INFO] testing sentry-core-0.21.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate sentry-core 0.21.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate sentry-core 0.21.0 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 sentry-core 0.21.0
[INFO] finished tweaking crates.io crate sentry-core 0.21.0
[INFO] tweaked toml for crates.io crate sentry-core 0.21.0 written to /workspace/builds/worker-7/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-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/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] b113e4e98d3e4f801f4b23cb5939e16eaddf8d465c150aded05736bc1261ff78
[INFO] running `Command { std: "docker" "start" "-a" "b113e4e98d3e4f801f4b23cb5939e16eaddf8d465c150aded05736bc1261ff78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b113e4e98d3e4f801f4b23cb5939e16eaddf8d465c150aded05736bc1261ff78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b113e4e98d3e4f801f4b23cb5939e16eaddf8d465c150aded05736bc1261ff78", kill_on_drop: false }`
[INFO] [stdout] b113e4e98d3e4f801f4b23cb5939e16eaddf8d465c150aded05736bc1261ff78
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", 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] cb94094f2d52e7d08fbeb5b41a6878f0a7a2bb5fc3f8a22708339c2eed2a9e1c
[INFO] running `Command { std: "docker" "start" "-a" "cb94094f2d52e7d08fbeb5b41a6878f0a7a2bb5fc3f8a22708339c2eed2a9e1c", kill_on_drop: false }`
[INFO] [stderr]    Compiling thiserror-impl v1.0.23
[INFO] [stderr]    Compiling uuid v0.8.1
[INFO] [stderr]    Compiling url v2.2.0
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling debugid v0.7.2
[INFO] [stderr]    Compiling thiserror v1.0.23
[INFO] [stderr]    Compiling sentry-types v0.21.0
[INFO] [stderr]    Compiling sentry-core v0.21.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.88s
[INFO] running `Command { std: "docker" "inspect" "cb94094f2d52e7d08fbeb5b41a6878f0a7a2bb5fc3f8a22708339c2eed2a9e1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb94094f2d52e7d08fbeb5b41a6878f0a7a2bb5fc3f8a22708339c2eed2a9e1c", kill_on_drop: false }`
[INFO] [stdout] cb94094f2d52e7d08fbeb5b41a6878f0a7a2bb5fc3f8a22708339c2eed2a9e1c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e907286b234a294ed28ddc1b5bc2722358f0f268e66d059d2cccf3e782218113
[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" "e907286b234a294ed28ddc1b5bc2722358f0f268e66d059d2cccf3e782218113", kill_on_drop: false }`
[INFO] [stderr]    Compiling sentry-core v0.21.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `anyhow`
[INFO] [stdout]    --> src/error.rs:145:17
[INFO] [stdout]     |
[INFO] [stdout] 145 |         anyhow::Error::from("NaN".parse::<usize>().unwrap_err())
[INFO] [stdout]     |                 ^^^^^ not found in `anyhow`
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]     |
[INFO] [stdout] 1   | use core::fmt::Error;
[INFO] [stdout]     |
[INFO] [stdout] 1   | use crate::error::Error;
[INFO] [stdout]     |
[INFO] [stdout] 1   | use serde::de::Error;
[INFO] [stdout]     |
[INFO] [stdout] 1   | use serde::de::value::Error;
[INFO] [stdout]     |
[INFO] [stdout]       and 7 other candidates
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `failure`
[INFO] [stdout]    --> src/error.rs:152:18
[INFO] [stdout]     |
[INFO] [stdout] 152 |         failure::Error::from("NaN".parse::<usize>().unwrap_err())
[INFO] [stdout]     |                  ^^^^^ not found in `failure`
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]     |
[INFO] [stdout] 1   | use core::fmt::Error;
[INFO] [stdout]     |
[INFO] [stdout] 1   | use crate::error::Error;
[INFO] [stdout]     |
[INFO] [stdout] 1   | use serde::de::Error;
[INFO] [stdout]     |
[INFO] [stdout] 1   | use serde::de::value::Error;
[INFO] [stdout]     |
[INFO] [stdout]       and 7 other candidates
[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 E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `sentry-core`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "e907286b234a294ed28ddc1b5bc2722358f0f268e66d059d2cccf3e782218113", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e907286b234a294ed28ddc1b5bc2722358f0f268e66d059d2cccf3e782218113", kill_on_drop: false }`
[INFO] [stdout] e907286b234a294ed28ddc1b5bc2722358f0f268e66d059d2cccf3e782218113