[INFO] fetching crate semantic-test-project 2.0.0...
[INFO] testing semantic-test-project-2.0.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate semantic-test-project 2.0.0 into /workspace/builds/worker-39/source
[INFO] validating manifest of crates.io crate semantic-test-project 2.0.0 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", 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-39/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--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-39/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c8bd8aa24bac5776ca6ba4ccee42bc6a524c07ec2ef7f7c10cc3486a29e43c60
[INFO] running `Command { std: "docker" "start" "-a" "c8bd8aa24bac5776ca6ba4ccee42bc6a524c07ec2ef7f7c10cc3486a29e43c60", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c8bd8aa24bac5776ca6ba4ccee42bc6a524c07ec2ef7f7c10cc3486a29e43c60", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c8bd8aa24bac5776ca6ba4ccee42bc6a524c07ec2ef7f7c10cc3486a29e43c60", kill_on_drop: false }`
[INFO] [stdout] c8bd8aa24bac5776ca6ba4ccee42bc6a524c07ec2ef7f7c10cc3486a29e43c60
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8f8c74a9c97da80458d79e8b48f7b159dbf86933197200de2e62d2bd5e619e05
[INFO] running `Command { std: "docker" "start" "-a" "8f8c74a9c97da80458d79e8b48f7b159dbf86933197200de2e62d2bd5e619e05", 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 0.23s
[INFO] running `Command { std: "docker" "inspect" "8f8c74a9c97da80458d79e8b48f7b159dbf86933197200de2e62d2bd5e619e05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f8c74a9c97da80458d79e8b48f7b159dbf86933197200de2e62d2bd5e619e05", kill_on_drop: false }`
[INFO] [stdout] 8f8c74a9c97da80458d79e8b48f7b159dbf86933197200de2e62d2bd5e619e05
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e9e5c88385bd105f417022ed4c5b519c89adc9d963bfc186e7220a5c0a68460f
[INFO] running `Command { std: "docker" "start" "-a" "e9e5c88385bd105f417022ed4c5b519c89adc9d963bfc186e7220a5c0a68460f", 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` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "e9e5c88385bd105f417022ed4c5b519c89adc9d963bfc186e7220a5c0a68460f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9e5c88385bd105f417022ed4c5b519c89adc9d963bfc186e7220a5c0a68460f", kill_on_drop: false }`
[INFO] [stdout] e9e5c88385bd105f417022ed4c5b519c89adc9d963bfc186e7220a5c0a68460f