[INFO] fetching crate temp_mail 0.1.6...
[INFO] testing temp_mail-0.1.6 against 1.83.0 for beta-1.84.0-4-retry
[INFO] extracting crate temp_mail 0.1.6 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate temp_mail 0.1.6 on toolchain 1.83.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.83.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate temp_mail 0.1.6
[INFO] finished tweaking crates.io crate temp_mail 0.1.6
[INFO] tweaked toml for crates.io crate temp_mail 0.1.6 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.83.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 168 packages to latest compatible versions
[INFO] [stderr]       Adding reqwest v0.11.27 (available: v0.12.9)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.83.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+1.83.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e339227b4c5041200234d279d995d6449520792345e1bce528d31ddca64089af
[INFO] running `Command { std: "docker" "start" "-a" "e339227b4c5041200234d279d995d6449520792345e1bce528d31ddca64089af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e339227b4c5041200234d279d995d6449520792345e1bce528d31ddca64089af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e339227b4c5041200234d279d995d6449520792345e1bce528d31ddca64089af", kill_on_drop: false }`
[INFO] [stdout] e339227b4c5041200234d279d995d6449520792345e1bce528d31ddca64089af
[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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+1.83.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e081856b1ebe9bf771ea62a0e5026b42894e934d2849ba8c66b5b822c74b1ea1
[INFO] running `Command { std: "docker" "start" "-a" "e081856b1ebe9bf771ea62a0e5026b42894e934d2849ba8c66b5b822c74b1ea1", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.92
[INFO] [stderr]    Compiling unicode-ident v1.0.14
[INFO] [stderr]    Compiling autocfg v1.4.0
[INFO] [stderr]    Compiling libc v0.2.168
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[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling shlex v1.3.0
[INFO] [stderr]    Compiling pin-project-lite v0.2.15
[INFO] [stderr]    Compiling parking_lot_core v0.9.10
[INFO] [stderr]    Compiling pkg-config v0.3.31
[INFO] [stderr]    Compiling vcpkg v0.2.15
[INFO] [stderr]    Compiling cc v1.2.4
[INFO] [stderr]    Compiling scopeguard v1.2.0
[INFO] [stderr]    Compiling litemap v0.7.4
[INFO] [stderr]    Compiling once_cell v1.20.2
[INFO] [stderr]    Compiling bytes v1.9.0
[INFO] [stderr]    Compiling lock_api v0.4.12
[INFO] [stderr]    Compiling writeable v0.5.5
[INFO] [stderr]    Compiling itoa v1.0.14
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]    Compiling icu_locid_transform_data v1.5.0
[INFO] [stderr]    Compiling futures-core v0.3.31
[INFO] [stderr]    Compiling openssl v0.10.68
[INFO] [stderr]    Compiling foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling icu_properties_data v1.5.0
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling serde v1.0.216
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling http v0.2.12
[INFO] [stderr]    Compiling foreign-types v0.3.2
[INFO] [stderr]    Compiling syn v2.0.90
[INFO] [stderr]    Compiling tracing-core v0.1.33
[INFO] [stderr]    Compiling mio v1.0.3
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[INFO] [stderr]    Compiling socket2 v0.5.8
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[INFO] [stderr]    Compiling httparse v1.9.5
[INFO] [stderr]    Compiling memchr v2.7.4
[INFO] [stderr]    Compiling futures-task v0.3.31
[INFO] [stderr]    Compiling openssl-sys v0.9.104
[INFO] [stderr]    Compiling native-tls v0.2.12
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[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling utf16_iter v1.0.5
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[INFO] [stderr]    Compiling openssl-probe v0.1.5
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[INFO] [stderr]    Compiling try-lock v0.2.5
[INFO] [stderr]    Compiling log v0.4.22
[INFO] [stderr]    Compiling want v0.3.1
[INFO] [stderr]    Compiling form_urlencoded v1.2.1
[INFO] [stderr]    Compiling http-body v0.4.6
[INFO] [stderr]    Compiling futures-channel v0.3.31
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling tower-service v0.3.3
[INFO] [stderr]    Compiling httpdate v1.0.3
[INFO] [stderr]    Compiling serde_json v1.0.133
[INFO] [stderr]    Compiling ryu v1.0.18
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling base64 v0.21.7
[INFO] [stderr]    Compiling regex-syntax v0.8.5
[INFO] [stderr]    Compiling encoding_rs v0.8.35
[INFO] [stderr]    Compiling sync_wrapper v0.1.2
[INFO] [stderr]    Compiling rustls-pemfile v1.0.4
[INFO] [stderr]    Compiling mime v0.3.17
[INFO] [stderr]    Compiling ipnet v2.10.1
[INFO] [stderr]    Compiling iana-time-zone v0.1.61
[INFO] [stderr]    Compiling regex-automata v0.4.9
[INFO] [stderr]    Compiling synstructure v0.13.1
[INFO] [stderr]    Compiling zerofrom-derive v0.1.5
[INFO] [stderr]    Compiling yoke-derive v0.7.5
[INFO] [stderr]    Compiling zerovec-derive v0.10.3
[INFO] [stderr]    Compiling displaydoc v0.2.5
[INFO] [stderr]    Compiling icu_provider_macros v1.5.0
[INFO] [stderr]    Compiling tokio-macros v2.4.0
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling openssl-macros v0.1.1
[INFO] [stderr]    Compiling tokio v1.42.0
[INFO] [stderr]    Compiling serde_derive v1.0.216
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling regex v1.11.1
[INFO] [stderr]    Compiling zerofrom v0.1.5
[INFO] [stderr]    Compiling yoke v0.7.5
[INFO] [stderr]    Compiling zerovec v0.10.4
[INFO] [stderr]    Compiling tinystr v0.7.6
[INFO] [stderr]    Compiling icu_locid v1.5.0
[INFO] [stderr]    Compiling icu_collections v1.5.0
[INFO] [stderr]    Compiling icu_provider v1.5.0
[INFO] [stderr]    Compiling icu_locid_transform v1.5.0
[INFO] [stderr]    Compiling icu_properties v1.5.1
[INFO] [stderr]    Compiling tokio-util v0.7.13
[INFO] [stderr]    Compiling tokio-native-tls v0.3.1
[INFO] [stderr]    Compiling h2 v0.3.26
[INFO] [stderr]    Compiling icu_normalizer v1.5.0
[INFO] [stderr]    Compiling idna_adapter v1.2.0
[INFO] [stderr]    Compiling serde_urlencoded v0.7.1
[INFO] [stderr]    Compiling chrono v0.4.39
[INFO] [stderr]    Compiling idna v1.0.3
[INFO] [stderr]    Compiling url v2.5.4
[INFO] [stderr]    Compiling hyper v0.14.31
[INFO] [stderr]    Compiling hyper-tls v0.5.0
[INFO] [stderr]    Compiling reqwest v0.11.27
[INFO] [stderr]    Compiling temp_mail v0.1.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/lib.rs:175:13
[INFO] [stdout]     |
[INFO] [stdout] 175 |             file.write_all(&item?);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 175 |             let _ = file.write_all(&item?);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 47s
[INFO] running `Command { std: "docker" "inspect" "e081856b1ebe9bf771ea62a0e5026b42894e934d2849ba8c66b5b822c74b1ea1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e081856b1ebe9bf771ea62a0e5026b42894e934d2849ba8c66b5b822c74b1ea1", kill_on_drop: false }`
[INFO] [stdout] e081856b1ebe9bf771ea62a0e5026b42894e934d2849ba8c66b5b822c74b1ea1
[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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+1.83.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c0b6544c9cc617ec43dd4d765b0f8b76b079930ac1ccdc871ec8c04d503b44e3
[INFO] running `Command { std: "docker" "start" "-a" "c0b6544c9cc617ec43dd4d765b0f8b76b079930ac1ccdc871ec8c04d503b44e3", kill_on_drop: false }`
[INFO] [stderr]    Compiling temp_mail v0.1.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/lib.rs:175:13
[INFO] [stdout]     |
[INFO] [stdout] 175 |             file.write_all(&item?);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 175 |             let _ = file.write_all(&item?);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/lib.rs:175:13
[INFO] [stdout]     |
[INFO] [stdout] 175 |             file.write_all(&item?);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 175 |             let _ = file.write_all(&item?);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.91s
[INFO] running `Command { std: "docker" "inspect" "c0b6544c9cc617ec43dd4d765b0f8b76b079930ac1ccdc871ec8c04d503b44e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0b6544c9cc617ec43dd4d765b0f8b76b079930ac1ccdc871ec8c04d503b44e3", kill_on_drop: false }`
[INFO] [stdout] c0b6544c9cc617ec43dd4d765b0f8b76b079930ac1ccdc871ec8c04d503b44e3
[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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+1.83.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7e7262489bf9d9622db90e3bc6e6f84e1edbe0ab74aeb99ee2a70fc24611d749
[INFO] running `Command { std: "docker" "start" "-a" "7e7262489bf9d9622db90e3bc6e6f84e1edbe0ab74aeb99ee2a70fc24611d749", kill_on_drop: false }`
[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] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/lib.rs:175:13
[INFO] [stderr]     |
[INFO] [stderr] 175 |             file.write_all(&item?);
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 175 |             let _ = file.write_all(&item?);
[INFO] [stderr]     |             +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `temp_mail` (lib) generated 1 warning
[INFO] [stderr] warning: `temp_mail` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.17s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/temp_mail-8169a1282511e2bb)
[INFO] [stderr]    Doc-tests temp_mail
[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] running `Command { std: "docker" "inspect" "7e7262489bf9d9622db90e3bc6e6f84e1edbe0ab74aeb99ee2a70fc24611d749", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e7262489bf9d9622db90e3bc6e6f84e1edbe0ab74aeb99ee2a70fc24611d749", kill_on_drop: false }`
[INFO] [stdout] 7e7262489bf9d9622db90e3bc6e6f84e1edbe0ab74aeb99ee2a70fc24611d749
