[INFO] fetching crate fix_me 0.1.1...
[INFO] checking fix_me-0.1.1 against try#f6e2f78768c57172b99c3e85892f867894dc7e30 for pr-75502
[INFO] extracting crate fix_me 0.1.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate fix_me 0.1.1 on toolchain f6e2f78768c57172b99c3e85892f867894dc7e30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "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-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:e18d859f9e32a1da89bc7b2d7d51e13b57342044d1295d9fc0dd0068c58eb3d1" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] da4321f82988a485670db49aa1c21915a89b4c906c353508cae60cdba00a6b18
[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" "da4321f82988a485670db49aa1c21915a89b4c906c353508cae60cdba00a6b18", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "da4321f82988a485670db49aa1c21915a89b4c906c353508cae60cdba00a6b18", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da4321f82988a485670db49aa1c21915a89b4c906c353508cae60cdba00a6b18", kill_on_drop: false }`
[INFO] [stdout] da4321f82988a485670db49aa1c21915a89b4c906c353508cae60cdba00a6b18
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=forbid" "-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:e18d859f9e32a1da89bc7b2d7d51e13b57342044d1295d9fc0dd0068c58eb3d1" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 90eb39ae31b0aa5359dd741585d6ad4ce08fa74c260710a3137a59aeb8ca8a4b
[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" "90eb39ae31b0aa5359dd741585d6ad4ce08fa74c260710a3137a59aeb8ca8a4b", kill_on_drop: false }`
[INFO] [stderr]     Checking 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" "90eb39ae31b0aa5359dd741585d6ad4ce08fa74c260710a3137a59aeb8ca8a4b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "90eb39ae31b0aa5359dd741585d6ad4ce08fa74c260710a3137a59aeb8ca8a4b", kill_on_drop: false }`
[INFO] [stdout] 90eb39ae31b0aa5359dd741585d6ad4ce08fa74c260710a3137a59aeb8ca8a4b