[INFO] fetching crate envoption 0.2.1...
[INFO] testing envoption-0.2.1 against master#432e145bd5a974c5b6f4dd9b352891bd7502b69d for pr-87041
[INFO] extracting crate envoption 0.2.1 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate envoption 0.2.1 on toolchain 432e145bd5a974c5b6f4dd9b352891bd7502b69d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate envoption 0.2.1
[INFO] finished tweaking crates.io crate envoption 0.2.1
[INFO] tweaked toml for crates.io crate envoption 0.2.1 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0b5eda57818f0935e4cdf2601c24a6b251302b4185119018e8e4a9badff68e95
[INFO] running `Command { std: "docker" "start" "-a" "0b5eda57818f0935e4cdf2601c24a6b251302b4185119018e8e4a9badff68e95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0b5eda57818f0935e4cdf2601c24a6b251302b4185119018e8e4a9badff68e95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b5eda57818f0935e4cdf2601c24a6b251302b4185119018e8e4a9badff68e95", kill_on_drop: false }`
[INFO] [stdout] 0b5eda57818f0935e4cdf2601c24a6b251302b4185119018e8e4a9badff68e95
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 09cbe8fe15ca592ac0d3c0535847dd2fc2778843b0f347d9134b875b13a2725f
[INFO] running `Command { std: "docker" "start" "-a" "09cbe8fe15ca592ac0d3c0535847dd2fc2778843b0f347d9134b875b13a2725f", kill_on_drop: false }`
[INFO] [stderr]    Compiling envoption v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:43:32
[INFO] [stdout]    |
[INFO] [stdout] 43 |     fn cause(&self) -> Option<&Error> {
[INFO] [stdout]    |                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.18s
[INFO] running `Command { std: "docker" "inspect" "09cbe8fe15ca592ac0d3c0535847dd2fc2778843b0f347d9134b875b13a2725f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "09cbe8fe15ca592ac0d3c0535847dd2fc2778843b0f347d9134b875b13a2725f", kill_on_drop: false }`
[INFO] [stdout] 09cbe8fe15ca592ac0d3c0535847dd2fc2778843b0f347d9134b875b13a2725f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 28cbc602fb70b875b00beb8489b820ca1da1966d704e5f6d45d5b6782eae452d
[INFO] running `Command { std: "docker" "start" "-a" "28cbc602fb70b875b00beb8489b820ca1da1966d704e5f6d45d5b6782eae452d", kill_on_drop: false }`
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:43:32
[INFO] [stdout]    |
[INFO] [stdout] 43 |     fn cause(&self) -> Option<&Error> {
[INFO] [stdout]    |                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling envoption v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:43:32
[INFO] [stdout]    |
[INFO] [stdout] 43 |     fn cause(&self) -> Option<&Error> {
[INFO] [stdout]    |                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.75s
[INFO] running `Command { std: "docker" "inspect" "28cbc602fb70b875b00beb8489b820ca1da1966d704e5f6d45d5b6782eae452d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "28cbc602fb70b875b00beb8489b820ca1da1966d704e5f6d45d5b6782eae452d", kill_on_drop: false }`
[INFO] [stdout] 28cbc602fb70b875b00beb8489b820ca1da1966d704e5f6d45d5b6782eae452d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 90dda6369b4f36463dd7f97326e39b699d2c14a3236fe7fa01610a5a9fe607fe
[INFO] running `Command { std: "docker" "start" "-a" "90dda6369b4f36463dd7f97326e39b699d2c14a3236fe7fa01610a5a9fe607fe", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout] running 24 tests
[INFO] [stderr]   --> src/lib.rs:43:32
[INFO] [stdout] test tests::get::var_is_present::default_value ... ok
[INFO] [stderr]    |
[INFO] [stdout] test tests::get::var_is_present::required ... ok
[INFO] [stderr] 43 |     fn cause(&self) -> Option<&Error> {
[INFO] [stdout] test tests::get::var_is_present::optional ... ok
[INFO] [stderr]    |                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] test tests::get::var_is_present::default_value_str ... ok
[INFO] [stderr]    |
[INFO] [stdout] test tests::get::var_not_present::default_value_usize ... ok
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] test tests::get::var_is_present::optional_usize ... ok
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout] test tests::get::var_is_present::required_usize ... ok
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] test tests::get::var_not_present::default_value ... ok
[INFO] [stderr] 
[INFO] [stdout] test tests::get::var_not_present::default_value_str ... ok
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stdout] test tests::get::var_is_present::default_value_usize ... ok
[INFO] [stderr] 
[INFO] [stdout] test tests::get::var_not_present::optional_usize ... ok
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout] test tests::get::var_not_present::required ... ok
[INFO] [stderr]   --> src/lib.rs:43:32
[INFO] [stdout] test tests::get::var_not_present::required_usize ... ok
[INFO] [stderr]    |
[INFO] [stdout] test tests::optional::var_is_present ... ok
[INFO] [stderr] 43 |     fn cause(&self) -> Option<&Error> {
[INFO] [stdout] test tests::optional::var_not_present ... ok
[INFO] [stderr]    |                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] test tests::with_default::var_is_present::default_str ... ok
[INFO] [stderr]    |
[INFO] [stdout] test tests::with_default::var_is_present::default_string ... ok
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] test tests::with_default::var_is_present::default_usize ... ok
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout] test tests::with_default::var_not_present::default_str ... ok
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] test tests::with_default::var_not_present::default_string ... ok
[INFO] [stderr] 
[INFO] [stdout] test tests::with_default::var_not_present::with_default_usize ... ok
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stdout] test tests::get::var_not_present::optional ... ok
[INFO] [stderr] 
[INFO] [stdout] test tests::require::var_is_present ... ok
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] test tests::require::var_not_present ... ok
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/envoption-dd7dfde6dbb06fae)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests envoption
[INFO] [stdout] test result: ok. 24 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[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" "90dda6369b4f36463dd7f97326e39b699d2c14a3236fe7fa01610a5a9fe607fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "90dda6369b4f36463dd7f97326e39b699d2c14a3236fe7fa01610a5a9fe607fe", kill_on_drop: false }`
[INFO] [stdout] 90dda6369b4f36463dd7f97326e39b699d2c14a3236fe7fa01610a5a9fe607fe