[INFO] fetching crate stblib 0.7.3...
[INFO] testing stblib-0.7.3 against 1.90.0 for beta-1.91-3
[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 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "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" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded shellwords v1.1.0
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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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 380939172a5876da33ee4b44336e44139ca0816b8e42def1601d37b6d173d4fe
[INFO] running `Command { std: "docker" "start" "-a" "380939172a5876da33ee4b44336e44139ca0816b8e42def1601d37b6d173d4fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "380939172a5876da33ee4b44336e44139ca0816b8e42def1601d37b6d173d4fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "380939172a5876da33ee4b44336e44139ca0816b8e42def1601d37b6d173d4fe", kill_on_drop: false }`
[INFO] [stdout] 380939172a5876da33ee4b44336e44139ca0816b8e42def1601d37b6d173d4fe
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 16339a6b8204d4de2023d8d97ee82e029ea0183d0e35972b636df3826e23b818
[INFO] running `Command { std: "docker" "start" "-a" "16339a6b8204d4de2023d8d97ee82e029ea0183d0e35972b636df3826e23b818", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.7.2
[INFO] [stderr]    Compiling itoa v1.0.11
[INFO] [stderr]    Compiling futures-core v0.3.30
[INFO] [stderr]    Compiling cc v1.0.92
[INFO] [stderr]    Compiling pkg-config v0.3.30
[INFO] [stderr]    Compiling futures-sink v0.3.30
[INFO] [stderr]    Compiling futures-task v0.3.30
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]    Compiling futures-io v0.3.30
[INFO] [stderr]    Compiling tracing-core v0.1.32
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling proc-macro2 v1.0.93
[INFO] [stderr]    Compiling mio v1.0.1
[INFO] [stderr]    Compiling socket2 v0.5.10
[INFO] [stderr]    Compiling indexmap v2.2.6
[INFO] [stderr]    Compiling bitflags v2.5.0
[INFO] [stderr]    Compiling openssl v0.10.64
[INFO] [stderr]    Compiling log v0.4.21
[INFO] [stderr]    Compiling native-tls v0.2.11
[INFO] [stderr]    Compiling futures-channel v0.3.30
[INFO] [stderr]    Compiling http v1.1.0
[INFO] [stderr]    Compiling tinyvec v1.6.0
[INFO] [stderr]    Compiling smallvec v1.13.2
[INFO] [stderr]    Compiling openssl-probe v0.1.5
[INFO] [stderr]    Compiling sync_wrapper v1.0.1
[INFO] [stderr]    Compiling num-traits v0.2.19
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[INFO] [stderr]    Compiling aho-corasick v1.1.3
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[INFO] [stderr]    Compiling tokio v1.46.1
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[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling syn v2.0.96
[INFO] [stderr]    Compiling serde_json v1.0.141
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[INFO] [stderr]    Compiling tokio-util v0.7.10
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[INFO] [stderr]    Compiling tokio-native-tls v0.3.1
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[INFO] [stderr]    Compiling hyper-util v0.1.13
[INFO] [stderr]    Compiling serde_urlencoded v0.7.1
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[INFO] [stderr]    Compiling serde_yaml v0.9.34+deprecated
[INFO] [stderr]    Compiling hyper-tls v0.6.0
[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 38.91s
[INFO] running `Command { std: "docker" "inspect" "16339a6b8204d4de2023d8d97ee82e029ea0183d0e35972b636df3826e23b818", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "16339a6b8204d4de2023d8d97ee82e029ea0183d0e35972b636df3826e23b818", kill_on_drop: false }`
[INFO] [stdout] 16339a6b8204d4de2023d8d97ee82e029ea0183d0e35972b636df3826e23b818
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] eae7dab577ec0a541b57e1f577c80d4e7c3073b2287eb3c28529f09b52cba85e
[INFO] running `Command { std: "docker" "start" "-a" "eae7dab577ec0a541b57e1f577c80d4e7c3073b2287eb3c28529f09b52cba85e", kill_on_drop: false }`
[INFO] [stderr]    Compiling stblib v0.7.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.92s
[INFO] running `Command { std: "docker" "inspect" "eae7dab577ec0a541b57e1f577c80d4e7c3073b2287eb3c28529f09b52cba85e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eae7dab577ec0a541b57e1f577c80d4e7c3073b2287eb3c28529f09b52cba85e", kill_on_drop: false }`
[INFO] [stdout] eae7dab577ec0a541b57e1f577c80d4e7c3073b2287eb3c28529f09b52cba85e
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] eb59216895189cdf8cb188796247b788041e7486da969dac8916dbc2fd9e2330
[INFO] running `Command { std: "docker" "start" "-a" "eb59216895189cdf8cb188796247b788041e7486da969dac8916dbc2fd9e2330", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.20s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/stblib-09955c706493c688)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests stblib
[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::new (line 59) ... ok
[INFO] [stdout] test src/file.rs - file::FileStruct::read (line 85) ... 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] 4 | 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] 5 | use stblib::file::write_to_file;
[INFO] [stdout] 6 | 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] 4 ~ fn main() { #[allow(non_snake_case)] fn _doctest_main_src_file_rs_30_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout] 5 | use stblib::file::write_to_file;
[INFO] [stdout] 6 | write_to_file("example.txt", "Hello World!")?;
[INFO] [stdout] 7 +     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] 4 | 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] 5 | use stblib::file::read_file;
[INFO] [stdout] 6 | 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] 4 ~ fn main() { #[allow(non_snake_case)] fn _doctest_main_src_file_rs_9_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout] 5 | use stblib::file::read_file;
[INFO] [stdout] 6 | let content = read_file("example.txt")?;
[INFO] [stdout] 7 +     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 0.90s
[INFO] [stdout] 
[INFO] [stdout] all doctests ran in 1.06s; merged doctests compilation took 0.16s
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "eb59216895189cdf8cb188796247b788041e7486da969dac8916dbc2fd9e2330", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb59216895189cdf8cb188796247b788041e7486da969dac8916dbc2fd9e2330", kill_on_drop: false }`
[INFO] [stdout] eb59216895189cdf8cb188796247b788041e7486da969dac8916dbc2fd9e2330
