[INFO] fetching crate tryfromfail 0.1.0...
[INFO] testing tryfromfail-0.1.0 against 1.45.2 for beta-1.46-1
[INFO] extracting crate tryfromfail 0.1.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate tryfromfail 0.1.0 on toolchain 1.45.2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tryfromfail 0.1.0
[INFO] finished tweaking crates.io crate tryfromfail 0.1.0
[INFO] tweaked toml for crates.io crate tryfromfail 0.1.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1d86fa0699b5c59cd0118e07f704b4cdcf4bc3ede7e4219b1dbea788e28ef21b
[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" "1d86fa0699b5c59cd0118e07f704b4cdcf4bc3ede7e4219b1dbea788e28ef21b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1d86fa0699b5c59cd0118e07f704b4cdcf4bc3ede7e4219b1dbea788e28ef21b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d86fa0699b5c59cd0118e07f704b4cdcf4bc3ede7e4219b1dbea788e28ef21b", kill_on_drop: false }`
[INFO] [stdout] 1d86fa0699b5c59cd0118e07f704b4cdcf4bc3ede7e4219b1dbea788e28ef21b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "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] 60e928b871c3c983af9c21e45f9f7b4a7d640994f6bf0ab0ae8f9bcbb5b3b35e
[INFO] running `Command { std: "docker" "start" "-a" "60e928b871c3c983af9c21e45f9f7b4a7d640994f6bf0ab0ae8f9bcbb5b3b35e", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling proc-macro2 v0.3.8
[INFO] [stderr]    Compiling quote v0.5.2
[INFO] [stderr]    Compiling syn v0.13.11
[INFO] [stderr]    Compiling tryfromfail v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.01s
[INFO] running `Command { std: "docker" "inspect" "60e928b871c3c983af9c21e45f9f7b4a7d640994f6bf0ab0ae8f9bcbb5b3b35e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60e928b871c3c983af9c21e45f9f7b4a7d640994f6bf0ab0ae8f9bcbb5b3b35e", kill_on_drop: false }`
[INFO] [stdout] 60e928b871c3c983af9c21e45f9f7b4a7d640994f6bf0ab0ae8f9bcbb5b3b35e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "test" "--frozen" "--no-run" "--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] fce2c66a8747aae04b8705954d541b3156009f86a42d0c62843a7c71a0bd4264
[INFO] running `Command { std: "docker" "start" "-a" "fce2c66a8747aae04b8705954d541b3156009f86a42d0c62843a7c71a0bd4264", kill_on_drop: false }`
[INFO] [stderr]    Compiling tryfromfail v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0659]: `FailingTryFrom` is ambiguous (derive helper attribute vs any other name)
[INFO] [stdout]  --> tests/test.rs:7:3
[INFO] [stdout]   |
[INFO] [stdout] 7 | #[FailingTryFrom(OtherType, AnotherType)]
[INFO] [stdout]   |   ^^^^^^^^^^^^^^ ambiguous name
[INFO] [stdout]   |
[INFO] [stdout] note: `FailingTryFrom` could refer to the derive helper attribute defined here
[INFO] [stdout]  --> tests/test.rs:6:28
[INFO] [stdout]   |
[INFO] [stdout] 6 | #[derive(Debug, PartialEq, FailingTryFrom)]
[INFO] [stdout]   |                            ^^^^^^^^^^^^^^
[INFO] [stdout] note: `FailingTryFrom` could also refer to the derive macro imported here
[INFO] [stdout]  --> tests/test.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tryfromfail`.
[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] [stdout] For more information about this error, try `rustc --explain E0659`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "fce2c66a8747aae04b8705954d541b3156009f86a42d0c62843a7c71a0bd4264", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fce2c66a8747aae04b8705954d541b3156009f86a42d0c62843a7c71a0bd4264", kill_on_drop: false }`
[INFO] [stdout] fce2c66a8747aae04b8705954d541b3156009f86a42d0c62843a7c71a0bd4264