[INFO] fetching crate envoption 0.2.1...
[INFO] testing envoption-0.2.1 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate envoption 0.2.1 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate envoption 0.2.1 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", 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-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9fc3b3354c3411b3bd80bdd170205005735f00394fa58ced6f0e1e2ad753794c
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "9fc3b3354c3411b3bd80bdd170205005735f00394fa58ced6f0e1e2ad753794c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9fc3b3354c3411b3bd80bdd170205005735f00394fa58ced6f0e1e2ad753794c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9fc3b3354c3411b3bd80bdd170205005735f00394fa58ced6f0e1e2ad753794c", kill_on_drop: false }`
[INFO] [stdout] 9fc3b3354c3411b3bd80bdd170205005735f00394fa58ced6f0e1e2ad753794c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d1b2a8ce8d357e428ae43ce83fec0de2fce76e67a7c925237dbb19226c0fc494
[INFO] running `Command { std: "docker" "start" "-a" "d1b2a8ce8d357e428ae43ce83fec0de2fce76e67a7c925237dbb19226c0fc494", 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] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.69s
[INFO] running `Command { std: "docker" "inspect" "d1b2a8ce8d357e428ae43ce83fec0de2fce76e67a7c925237dbb19226c0fc494", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1b2a8ce8d357e428ae43ce83fec0de2fce76e67a7c925237dbb19226c0fc494", kill_on_drop: false }`
[INFO] [stdout] d1b2a8ce8d357e428ae43ce83fec0de2fce76e67a7c925237dbb19226c0fc494
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f08f8ba20b8f98d38d23ab3833ab6f64c244dfc90affaca9d048e638d4d05d3f
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f08f8ba20b8f98d38d23ab3833ab6f64c244dfc90affaca9d048e638d4d05d3f", 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] 
[INFO] [stdout] 
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.11s
[INFO] running `Command { std: "docker" "inspect" "f08f8ba20b8f98d38d23ab3833ab6f64c244dfc90affaca9d048e638d4d05d3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f08f8ba20b8f98d38d23ab3833ab6f64c244dfc90affaca9d048e638d4d05d3f", kill_on_drop: false }`
[INFO] [stdout] f08f8ba20b8f98d38d23ab3833ab6f64c244dfc90affaca9d048e638d4d05d3f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e2b089b5ec6c30204b8d49eb63b0910183d84c31e1d11782e9a1736398049dbe
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "e2b089b5ec6c30204b8d49eb63b0910183d84c31e1d11782e9a1736398049dbe", kill_on_drop: false }`
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:43:32
[INFO] [stderr]    |
[INFO] [stderr] 43 |     fn cause(&self) -> Option<&Error> {
[INFO] [stderr]    |                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:43:32
[INFO] [stderr]    |
[INFO] [stderr] 43 |     fn cause(&self) -> Option<&Error> {
[INFO] [stderr]    |                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/envoption-e6a5f5324875770b
[INFO] [stdout] 
[INFO] [stdout] running 24 tests
[INFO] [stdout] test tests::get::var_is_present::default_value ... ok
[INFO] [stdout] test tests::get::var_is_present::default_value_str ... ok
[INFO] [stdout] test tests::get::var_is_present::optional ... ok
[INFO] [stdout] test tests::get::var_is_present::optional_usize ... ok
[INFO] [stdout] test tests::get::var_is_present::required ... ok
[INFO] [stdout] test tests::get::var_is_present::required_usize ... ok
[INFO] [stdout] test tests::get::var_is_present::default_value_usize ... ok
[INFO] [stdout] test tests::with_default::var_not_present::default_str ... ok
[INFO] [stdout] test tests::with_default::var_is_present::default_usize ... ok
[INFO] [stdout] test tests::with_default::var_is_present::default_string ... ok
[INFO] [stdout] test tests::with_default::var_is_present::default_str ... ok
[INFO] [stdout] test tests::optional::var_is_present ... ok
[INFO] [stdout] test tests::get::var_not_present::required_usize ... ok
[INFO] [stderr]    Doc-tests envoption
[INFO] [stdout] test tests::get::var_not_present::required ... ok
[INFO] [stdout] test tests::get::var_not_present::default_value ... ok
[INFO] [stdout] test tests::get::var_not_present::optional_usize ... ok
[INFO] [stdout] test tests::require::var_not_present ... ok
[INFO] [stdout] test tests::with_default::var_not_present::with_default_usize ... ok
[INFO] [stdout] test tests::get::var_not_present::optional ... ok
[INFO] [stdout] test tests::with_default::var_not_present::default_string ... ok
[INFO] [stdout] test tests::require::var_is_present ... ok
[INFO] [stdout] test tests::optional::var_not_present ... ok
[INFO] [stdout] test tests::get::var_not_present::default_value_usize ... ok
[INFO] [stdout] test tests::get::var_not_present::default_value_str ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 24 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[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" "e2b089b5ec6c30204b8d49eb63b0910183d84c31e1d11782e9a1736398049dbe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e2b089b5ec6c30204b8d49eb63b0910183d84c31e1d11782e9a1736398049dbe", kill_on_drop: false }`
[INFO] [stdout] e2b089b5ec6c30204b8d49eb63b0910183d84c31e1d11782e9a1736398049dbe