[INFO] fetching crate fix_me 0.1.1...
[INFO] testing fix_me-0.1.1 against beta-2020-07-24 for beta-1.46-1
[INFO] extracting crate fix_me 0.1.1 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate fix_me 0.1.1 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 fix_me 0.1.1
[INFO] finished tweaking crates.io crate fix_me 0.1.1
[INFO] tweaked toml for crates.io crate fix_me 0.1.1 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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7ef0786d69c2bd82d17d6edc48c01a9f1dca015a2a8831e9d526bea57e0682f2
[INFO] running `Command { std: "docker" "start" "-a" "7ef0786d69c2bd82d17d6edc48c01a9f1dca015a2a8831e9d526bea57e0682f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7ef0786d69c2bd82d17d6edc48c01a9f1dca015a2a8831e9d526bea57e0682f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ef0786d69c2bd82d17d6edc48c01a9f1dca015a2a8831e9d526bea57e0682f2", kill_on_drop: false }`
[INFO] [stdout] 7ef0786d69c2bd82d17d6edc48c01a9f1dca015a2a8831e9d526bea57e0682f2
[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] [stdout] 25ce79f75f34dd5f0e7520e07a4762022aea62b4770957979602b87fadf770e1
[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" "25ce79f75f34dd5f0e7520e07a4762022aea62b4770957979602b87fadf770e1", kill_on_drop: false }`
[INFO] [stderr]    Compiling fix_me v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.37s
[INFO] running `Command { std: "docker" "inspect" "25ce79f75f34dd5f0e7520e07a4762022aea62b4770957979602b87fadf770e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "25ce79f75f34dd5f0e7520e07a4762022aea62b4770957979602b87fadf770e1", kill_on_drop: false }`
[INFO] [stdout] 25ce79f75f34dd5f0e7520e07a4762022aea62b4770957979602b87fadf770e1
[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] c6963024494aa740c3b1e4ff09c2d188f37609257e2a45c0b3a9789ce8505984
[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" "c6963024494aa740c3b1e4ff09c2d188f37609257e2a45c0b3a9789ce8505984", kill_on_drop: false }`
[INFO] [stderr]    Compiling fix_me v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type or module `String`
[INFO] [stdout]   --> src/lib.rs:44:27
[INFO] [stdout]    |
[INFO] [stdout] 44 |         let test_string = String::from("test");
[INFO] [stdout]    |                           ^^^^^^ use of undeclared type or module `String`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type or module `String`
[INFO] [stdout]   --> src/lib.rs:47:31
[INFO] [stdout]    |
[INFO] [stdout] 47 |             let test_string = String::from("replace");
[INFO] [stdout]    |                               ^^^^^^ use of undeclared type or module `String`
[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 `fix_me`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "c6963024494aa740c3b1e4ff09c2d188f37609257e2a45c0b3a9789ce8505984", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6963024494aa740c3b1e4ff09c2d188f37609257e2a45c0b3a9789ce8505984", kill_on_drop: false }`
[INFO] [stdout] c6963024494aa740c3b1e4ff09c2d188f37609257e2a45c0b3a9789ce8505984