[INFO] fetching crate libstrawberry 1.4.3...
[INFO] testing libstrawberry-1.4.3 against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-8
[INFO] extracting crate libstrawberry 1.4.3 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate libstrawberry 1.4.3
[INFO] finished tweaking crates.io crate libstrawberry 1.4.3
[INFO] tweaked toml for crates.io crate libstrawberry 1.4.3 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate libstrawberry 1.4.3 on toolchain c2e32f1c9652b13ed99608599c1e855462f421f3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate libstrawberry 1.4.3 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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] aef0c08cdaf12282f9b5784596adb2735723e4beedfc98ac0a68b54c2ee0e6cd
[INFO] running `Command { std: "docker" "start" "-a" "aef0c08cdaf12282f9b5784596adb2735723e4beedfc98ac0a68b54c2ee0e6cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aef0c08cdaf12282f9b5784596adb2735723e4beedfc98ac0a68b54c2ee0e6cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aef0c08cdaf12282f9b5784596adb2735723e4beedfc98ac0a68b54c2ee0e6cd", kill_on_drop: false }`
[INFO] [stdout] aef0c08cdaf12282f9b5784596adb2735723e4beedfc98ac0a68b54c2ee0e6cd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 34d3173980eef2cb9b3481cc3665a9b0380beffe899de42956f4631ddc9ac4eb
[INFO] running `Command { std: "docker" "start" "-a" "34d3173980eef2cb9b3481cc3665a9b0380beffe899de42956f4631ddc9ac4eb", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling libc v0.2.174
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
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[INFO] [stderr]    Compiling serde_yaml v0.9.34+deprecated
[INFO] [stderr]    Compiling idna_adapter v1.2.1
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[INFO] [stderr]    Compiling tokio-native-tls v0.3.1
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[INFO] [stderr]    Compiling hyper-tls v0.6.0
[INFO] [stderr]    Compiling reqwest v0.12.23
[INFO] [stderr]    Compiling libstrawberry v1.4.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 30s
[INFO] running `Command { std: "docker" "inspect" "34d3173980eef2cb9b3481cc3665a9b0380beffe899de42956f4631ddc9ac4eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34d3173980eef2cb9b3481cc3665a9b0380beffe899de42956f4631ddc9ac4eb", kill_on_drop: false }`
[INFO] [stdout] 34d3173980eef2cb9b3481cc3665a9b0380beffe899de42956f4631ddc9ac4eb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 619c95ec85dae605e01284b40df3a26fb7485625b4b60e90c9548237a3f2a0b0
[INFO] running `Command { std: "docker" "start" "-a" "619c95ec85dae605e01284b40df3a26fb7485625b4b60e90c9548237a3f2a0b0", kill_on_drop: false }`
[INFO] [stderr]    Compiling libstrawberry v1.4.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.60s
[INFO] running `Command { std: "docker" "inspect" "619c95ec85dae605e01284b40df3a26fb7485625b4b60e90c9548237a3f2a0b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "619c95ec85dae605e01284b40df3a26fb7485625b4b60e90c9548237a3f2a0b0", kill_on_drop: false }`
[INFO] [stdout] 619c95ec85dae605e01284b40df3a26fb7485625b4b60e90c9548237a3f2a0b0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4c9f48a0c99790167f83ab0c5ea3c36ec0d0b73e8c05467f99fbca8ababe2446
[INFO] running `Command { std: "docker" "start" "-a" "4c9f48a0c99790167f83ab0c5ea3c36ec0d0b73e8c05467f99fbca8ababe2446", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.19s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/libstrawberry-bed1bd92d064b741)
[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] [stderr]    Doc-tests libstrawberry
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test src/file.rs - file::read_file (line 9) ... FAILED
[INFO] [stdout] test src/file.rs - file::write_to_file (line 30) ... FAILED
[INFO] [stdout] test src/file.rs - file::PersistentFile::read (line 85) ... ok
[INFO] [stdout] test src/file.rs - file::PersistentFile::write (line 119) ... ok
[INFO] [stdout] test src/file.rs - file::PersistentFile::new (line 59) ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[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 libstrawberry::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 libstrawberry::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] ---- 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 libstrawberry::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 libstrawberry::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] 
[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 0.32s
[INFO] [stdout] 
[INFO] [stdout] all doctests ran in 0.40s; merged doctests compilation took 0.07s
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "4c9f48a0c99790167f83ab0c5ea3c36ec0d0b73e8c05467f99fbca8ababe2446", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c9f48a0c99790167f83ab0c5ea3c36ec0d0b73e8c05467f99fbca8ababe2446", kill_on_drop: false }`
[INFO] [stdout] 4c9f48a0c99790167f83ab0c5ea3c36ec0d0b73e8c05467f99fbca8ababe2446
