[INFO] fetching crate stblib 0.7.3...
[INFO] testing stblib-0.7.3 against 1.95.0 for beta-1.96-2
[INFO] extracting crate stblib 0.7.3 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate stblib 0.7.3
[INFO] finished tweaking crates.io crate stblib 0.7.3
[INFO] tweaked toml for crates.io crate stblib 0.7.3 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate stblib 0.7.3 on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate stblib 0.7.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] eccc1e74ae00d5693cd0d1457f99b35b200f535de0417f7c1294779d7603decd
[INFO] running `Command { std: "docker" "start" "-a" "eccc1e74ae00d5693cd0d1457f99b35b200f535de0417f7c1294779d7603decd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eccc1e74ae00d5693cd0d1457f99b35b200f535de0417f7c1294779d7603decd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eccc1e74ae00d5693cd0d1457f99b35b200f535de0417f7c1294779d7603decd", kill_on_drop: false }`
[INFO] [stdout] eccc1e74ae00d5693cd0d1457f99b35b200f535de0417f7c1294779d7603decd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a5f3446f58c54395315233d9551fce10bb018dd102bf39856118459e50a2b025
[INFO] running `Command { std: "docker" "start" "-a" "a5f3446f58c54395315233d9551fce10bb018dd102bf39856118459e50a2b025", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-ident v1.0.12
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[INFO] [stderr]    Compiling reqwest v0.12.22
[INFO] [stderr]    Compiling stblib v0.7.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 40.15s
[INFO] running `Command { std: "docker" "inspect" "a5f3446f58c54395315233d9551fce10bb018dd102bf39856118459e50a2b025", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5f3446f58c54395315233d9551fce10bb018dd102bf39856118459e50a2b025", kill_on_drop: false }`
[INFO] [stdout] a5f3446f58c54395315233d9551fce10bb018dd102bf39856118459e50a2b025
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b254ccb40d348740e7047b2bbd37c400fdb8b481df8e04c7651144735b394885
[INFO] running `Command { std: "docker" "start" "-a" "b254ccb40d348740e7047b2bbd37c400fdb8b481df8e04c7651144735b394885", kill_on_drop: false }`
[INFO] [stderr]    Compiling stblib v0.7.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.06s
[INFO] running `Command { std: "docker" "inspect" "b254ccb40d348740e7047b2bbd37c400fdb8b481df8e04c7651144735b394885", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b254ccb40d348740e7047b2bbd37c400fdb8b481df8e04c7651144735b394885", kill_on_drop: false }`
[INFO] [stdout] b254ccb40d348740e7047b2bbd37c400fdb8b481df8e04c7651144735b394885
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 12cb151599c3ed3da328bd73d8bbd9170abb7d6bb8cd19cb625d0e9611383287
[INFO] running `Command { std: "docker" "start" "-a" "12cb151599c3ed3da328bd73d8bbd9170abb7d6bb8cd19cb625d0e9611383287", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.21s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/stblib-5461d57cbbc40f2e)
[INFO] [stderr]    Doc-tests stblib
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test src/file.rs - file::write_to_file (line 30) ... FAILED
[INFO] [stdout] test src/file.rs - file::FileStruct::write (line 119) ... ok
[INFO] [stdout] test src/file.rs - file::read_file (line 9) ... FAILED
[INFO] [stdout] test src/file.rs - file::FileStruct::read (line 85) ... ok
[INFO] [stdout] test src/file.rs - file::FileStruct::new (line 59) ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/file.rs - file::write_to_file (line 30) stdout ----
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]   --> src/file.rs:33:45
[INFO] [stdout]    |
[INFO] [stdout] 31 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_file_rs_30_0() {
[INFO] [stdout]    |                                      ----------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] 32 | use stblib::file::write_to_file;
[INFO] [stdout] 33 | write_to_file("example.txt", "Hello World!")?;
[INFO] [stdout]    |                                             ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]    |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]    |
[INFO] [stdout] 31 ~ fn main() { #[allow(non_snake_case)] fn _doctest_main_src_file_rs_30_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout] 32 | use stblib::file::write_to_file;
[INFO] [stdout] 33 | write_to_file("example.txt", "Hello World!")?;
[INFO] [stdout] 34 +     Ok(())
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/file.rs - file::read_file (line 9) stdout ----
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]   --> src/file.rs:12:39
[INFO] [stdout]    |
[INFO] [stdout] 10 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_file_rs_9_0() {
[INFO] [stdout]    |                                      ---------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] 11 | use stblib::file::read_file;
[INFO] [stdout] 12 | let content = read_file("example.txt")?;
[INFO] [stdout]    |                                       ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]    |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]    |
[INFO] [stdout] 10 ~ fn main() { #[allow(non_snake_case)] fn _doctest_main_src_file_rs_9_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout] 11 | use stblib::file::read_file;
[INFO] [stdout] 12 | let content = read_file("example.txt")?;
[INFO] [stdout] 13 +     Ok(())
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/file.rs - file::read_file (line 9)
[INFO] [stdout]     src/file.rs - file::write_to_file (line 30)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 3 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.61s
[INFO] [stdout] 
[INFO] [stdout] all doctests ran in 0.76s; merged doctests compilation took 0.15s
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "12cb151599c3ed3da328bd73d8bbd9170abb7d6bb8cd19cb625d0e9611383287", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "12cb151599c3ed3da328bd73d8bbd9170abb7d6bb8cd19cb625d0e9611383287", kill_on_drop: false }`
[INFO] [stdout] 12cb151599c3ed3da328bd73d8bbd9170abb7d6bb8cd19cb625d0e9611383287
