[INFO] fetching crate semantic-test-project 2.0.0...
[INFO] testing semantic-test-project-2.0.0 against beta-2020-07-24 for beta-1.46-1
[INFO] extracting crate semantic-test-project 2.0.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate semantic-test-project 2.0.0 on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate semantic-test-project 2.0.0
[INFO] finished tweaking crates.io crate semantic-test-project 2.0.0
[INFO] tweaked toml for crates.io crate semantic-test-project 2.0.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "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" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b0d25e47aed73ac992e5730933a46116107df4876d55a5d1722c972ac7a5ffee
[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" "b0d25e47aed73ac992e5730933a46116107df4876d55a5d1722c972ac7a5ffee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b0d25e47aed73ac992e5730933a46116107df4876d55a5d1722c972ac7a5ffee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0d25e47aed73ac992e5730933a46116107df4876d55a5d1722c972ac7a5ffee", kill_on_drop: false }`
[INFO] [stdout] b0d25e47aed73ac992e5730933a46116107df4876d55a5d1722c972ac7a5ffee
[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" "+beta-2020-07-24" "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] ddb6dd5c52b07e58377e8398afbf6d9dd3a99371b2f4e41e43c4ba9ebbd71936
[INFO] running `Command { std: "docker" "start" "-a" "ddb6dd5c52b07e58377e8398afbf6d9dd3a99371b2f4e41e43c4ba9ebbd71936", kill_on_drop: false }`
[INFO] [stderr]    Compiling semantic-test-project v2.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.27s
[INFO] running `Command { std: "docker" "inspect" "ddb6dd5c52b07e58377e8398afbf6d9dd3a99371b2f4e41e43c4ba9ebbd71936", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ddb6dd5c52b07e58377e8398afbf6d9dd3a99371b2f4e41e43c4ba9ebbd71936", kill_on_drop: false }`
[INFO] [stdout] ddb6dd5c52b07e58377e8398afbf6d9dd3a99371b2f4e41e43c4ba9ebbd71936
[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" "+beta-2020-07-24" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1a7d03b078c943fc0f6b3010b29e301eba5f34887f36760b01c1acd2c3429d56
[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" "1a7d03b078c943fc0f6b3010b29e301eba5f34887f36760b01c1acd2c3429d56", kill_on_drop: false }`
[INFO] [stderr]    Compiling semantic-test-project v2.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0428]: the name `foo` is defined multiple times
[INFO] [stdout]   --> src/lib.rs:17:1
[INFO] [stdout]    |
[INFO] [stdout] 3  | pub fn foo() {
[INFO] [stdout]    | ------------ previous definition of the value `foo` here
[INFO] [stdout] ...
[INFO] [stdout] 17 | pub fn foo() {
[INFO] [stdout]    | ^^^^^^^^^^^^ `foo` redefined here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `foo` must be defined only once in the value namespace of this module
[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 E0428`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `semantic-test-project`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "1a7d03b078c943fc0f6b3010b29e301eba5f34887f36760b01c1acd2c3429d56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a7d03b078c943fc0f6b3010b29e301eba5f34887f36760b01c1acd2c3429d56", kill_on_drop: false }`
[INFO] [stdout] 1a7d03b078c943fc0f6b3010b29e301eba5f34887f36760b01c1acd2c3429d56