[INFO] fetching crate pyo3-file 0.3.1...
[INFO] testing pyo3-file-0.3.1 against try#41997647ba6a77908f6ef64401414feb00bccf16 for pr-71274
[INFO] extracting crate pyo3-file 0.3.1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate pyo3-file 0.3.1 on toolchain 41997647ba6a77908f6ef64401414feb00bccf16
[INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate pyo3-file 0.3.1
[INFO] finished tweaking crates.io crate pyo3-file 0.3.1
[INFO] tweaked toml for crates.io crate pyo3-file 0.3.1 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=forbid" "-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" "/opt/rustwide/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] da046dfde5e1fee07af21e56e5018dc14ee6d7309bf85c2a0e83fd7a8a9878e2
[INFO] running `"docker" "start" "-a" "da046dfde5e1fee07af21e56e5018dc14ee6d7309bf85c2a0e83fd7a8a9878e2"`
[INFO] [stderr]    Compiling proc-macro2 v1.0.10
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]    Compiling serde v1.0.106
[INFO] [stderr]    Compiling ryu v1.0.3
[INFO] [stderr]    Compiling version_check v0.9.1
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling itoa v0.4.5
[INFO] [stderr]    Compiling pulldown-cmark v0.2.0
[INFO] [stderr]    Compiling proc-macro-hack v0.5.15
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling glob v0.2.11
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling unindent v0.1.5
[INFO] [stderr]    Compiling inventory v0.1.6
[INFO] [stderr]    Compiling bytecount v0.4.0
[INFO] [stderr]    Compiling smallvec v1.3.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.35
[INFO] [stderr]    Compiling walkdir v2.3.1
[INFO] [stderr]    Compiling lock_api v0.3.4
[INFO] [stderr]    Compiling error-chain v0.12.2
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling parking_lot_core v0.7.1
[INFO] [stderr]    Compiling backtrace v0.3.46
[INFO] [stderr]    Compiling parking_lot v0.10.2
[INFO] [stderr]    Compiling tempdir v0.3.7
[INFO] [stderr]    Compiling pyo3-derive-backend v0.9.2
[INFO] [stderr]    Compiling serde_derive v1.0.106
[INFO] [stderr]    Compiling indoc-impl v0.3.5
[INFO] [stderr]    Compiling paste-impl v0.1.10
[INFO] [stderr]    Compiling ghost v0.1.1
[INFO] [stderr]    Compiling ctor v0.1.13
[INFO] [stderr]    Compiling inventory-impl v0.1.6
[INFO] [stderr]    Compiling pyo3cls v0.9.2
[INFO] [stderr]    Compiling indoc v0.3.5
[INFO] [stderr]    Compiling paste v0.1.10
[INFO] [stderr]    Compiling serde_json v1.0.51
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling cargo_metadata v0.6.4
[INFO] [stderr]    Compiling pyo3 v0.9.2
[INFO] [stderr]    Compiling skeptic v0.13.4
[INFO] [stderr]    Compiling pyo3-file v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 56s
[INFO] running `"docker" "inspect" "da046dfde5e1fee07af21e56e5018dc14ee6d7309bf85c2a0e83fd7a8a9878e2"`
[INFO] running `"docker" "rm" "-f" "da046dfde5e1fee07af21e56e5018dc14ee6d7309bf85c2a0e83fd7a8a9878e2"`
[INFO] [stdout] da046dfde5e1fee07af21e56e5018dc14ee6d7309bf85c2a0e83fd7a8a9878e2
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=forbid" "-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" "/opt/rustwide/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 468e85af28a43b738a1b7c5ba1ba906772de5fa7029422f5c82c2bcaf9b3fb7d
[INFO] running `"docker" "start" "-a" "468e85af28a43b738a1b7c5ba1ba906772de5fa7029422f5c82c2bcaf9b3fb7d"`
[INFO] [stderr]    Compiling pyo3-file v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.30s
[INFO] running `"docker" "inspect" "468e85af28a43b738a1b7c5ba1ba906772de5fa7029422f5c82c2bcaf9b3fb7d"`
[INFO] running `"docker" "rm" "-f" "468e85af28a43b738a1b7c5ba1ba906772de5fa7029422f5c82c2bcaf9b3fb7d"`
[INFO] [stdout] 468e85af28a43b738a1b7c5ba1ba906772de5fa7029422f5c82c2bcaf9b3fb7d
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=forbid" "-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" "/opt/rustwide/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 0cd8da25441da059d292517a7bc3e94ccb88e82156aa714dfc14fd3bf134f3cf
[INFO] running `"docker" "start" "-a" "0cd8da25441da059d292517a7bc3e94ccb88e82156aa714dfc14fd3bf134f3cf"`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.45s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/pyo3_file-5274bb910b607128
[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
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/skeptic-256b817df0b8909a
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr] warning: unused variable: `py`
[INFO] [stderr]   --> /tmp/rust-skeptic.O0PX0ggB0iJS/test.rs:44:9
[INFO] [stderr]    |
[INFO] [stderr] 44 |     let py = gil.python();
[INFO] [stderr]    |         ^^ help: if this is intentional, prefix it with an underscore: `_py`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `read`
[INFO] [stderr]   --> /tmp/rust-skeptic.O0PX0ggB0iJS/test.rs:53:21
[INFO] [stderr]    |
[INFO] [stderr] 53 |                 let read = f.read_to_string(&mut string);
[INFO] [stderr]    |                     ^^^^ help: if this is intentional, prefix it with an underscore: `_read`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `read`
[INFO] [stderr]   --> /tmp/rust-skeptic.O0PX0ggB0iJS/test.rs:60:21
[INFO] [stderr]    |
[INFO] [stderr] 60 |                 let read = f.read_to_string(&mut string);
[INFO] [stderr]    |                     ^^^^ help: if this is intentional, prefix it with an underscore: `_read`
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stdout] test readme_sect_example_line_29 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests pyo3-file
[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
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "0cd8da25441da059d292517a7bc3e94ccb88e82156aa714dfc14fd3bf134f3cf"`
[INFO] running `"docker" "rm" "-f" "0cd8da25441da059d292517a7bc3e94ccb88e82156aa714dfc14fd3bf134f3cf"`
[INFO] [stdout] 0cd8da25441da059d292517a7bc3e94ccb88e82156aa714dfc14fd3bf134f3cf