[INFO] fetching crate proper 0.1.5...
[INFO] testing proper-0.1.5 against nightly-2025-01-18 for randomize-layout-2
[INFO] extracting crate proper 0.1.5 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate proper 0.1.5 on toolchain nightly-2025-01-18
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2025-01-18" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate proper 0.1.5
[INFO] finished tweaking crates.io crate proper 0.1.5
[INFO] tweaked toml for crates.io crate proper 0.1.5 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" "+nightly-2025-01-18" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 4 packages to latest compatible versions
[INFO] [stderr]       Adding syn v1.0.109 (available: v2.0.96)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2025-01-18" "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@sha256:819108c5571ea2e421544af4d832f968d213c87fbe3707a016657f43d2f853bc" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2025-01-18" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4edeb5588a439d0189015dfb52e6dc1e5f0d6c97daa2b4d526b61c51ad8c3ad2
[INFO] running `Command { std: "docker" "start" "-a" "4edeb5588a439d0189015dfb52e6dc1e5f0d6c97daa2b4d526b61c51ad8c3ad2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4edeb5588a439d0189015dfb52e6dc1e5f0d6c97daa2b4d526b61c51ad8c3ad2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4edeb5588a439d0189015dfb52e6dc1e5f0d6c97daa2b4d526b61c51ad8c3ad2", kill_on_drop: false }`
[INFO] [stdout] 4edeb5588a439d0189015dfb52e6dc1e5f0d6c97daa2b4d526b61c51ad8c3ad2
[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=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@sha256:819108c5571ea2e421544af4d832f968d213c87fbe3707a016657f43d2f853bc" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2025-01-18" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7f91670d00e535017ed4ab60a08add108b76c2dbbdb2c34811a646a22110f889
[INFO] running `Command { std: "docker" "start" "-a" "7f91670d00e535017ed4ab60a08add108b76c2dbbdb2c34811a646a22110f889", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling proper v0.1.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the feature `bind_by_move_pattern_guards` has been stable since 1.39.0 and no longer requires an attribute to enable
[INFO] [stdout]   --> src/lib.rs:66:12
[INFO] [stdout]    |
[INFO] [stdout] 66 | #![feature(bind_by_move_pattern_guards, proc_macro_diagnostic, proc_macro_span)]
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `err_ctor` is never read
[INFO] [stdout]  --> src/attr.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct PrimAttrs {
[INFO] [stdout]   |            --------- field in this struct
[INFO] [stdout] 6 |     pub min_ty: Option<IntTy>,
[INFO] [stdout] 7 |     pub err_ctor: Option<syn::Path>,
[INFO] [stdout]   |         ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.05s
[INFO] running `Command { std: "docker" "inspect" "7f91670d00e535017ed4ab60a08add108b76c2dbbdb2c34811a646a22110f889", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f91670d00e535017ed4ab60a08add108b76c2dbbdb2c34811a646a22110f889", kill_on_drop: false }`
[INFO] [stdout] 7f91670d00e535017ed4ab60a08add108b76c2dbbdb2c34811a646a22110f889
[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=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@sha256:819108c5571ea2e421544af4d832f968d213c87fbe3707a016657f43d2f853bc" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2025-01-18" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 07e405cb217149000239c92c362a3c7541d88e7a5a23a707b8bef7c0f9d4e3c4
[INFO] running `Command { std: "docker" "start" "-a" "07e405cb217149000239c92c362a3c7541d88e7a5a23a707b8bef7c0f9d4e3c4", kill_on_drop: false }`
[INFO] [stderr]    Compiling proper v0.1.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the feature `bind_by_move_pattern_guards` has been stable since 1.39.0 and no longer requires an attribute to enable
[INFO] [stdout]   --> src/lib.rs:66:12
[INFO] [stdout]    |
[INFO] [stdout] 66 | #![feature(bind_by_move_pattern_guards, proc_macro_diagnostic, proc_macro_span)]
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `bind_by_move_pattern_guards` has been stable since 1.39.0 and no longer requires an attribute to enable
[INFO] [stdout]   --> src/lib.rs:66:12
[INFO] [stdout]    |
[INFO] [stdout] 66 | #![feature(bind_by_move_pattern_guards, proc_macro_diagnostic, proc_macro_span)]
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `err_ctor` is never read
[INFO] [stdout]  --> src/attr.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct PrimAttrs {
[INFO] [stdout]   |            --------- field in this struct
[INFO] [stdout] 6 |     pub min_ty: Option<IntTy>,
[INFO] [stdout] 7 |     pub err_ctor: Option<syn::Path>,
[INFO] [stdout]   |         ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `err_ctor` is never read
[INFO] [stdout]  --> src/attr.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct PrimAttrs {
[INFO] [stdout]   |            --------- field in this struct
[INFO] [stdout] 6 |     pub min_ty: Option<IntTy>,
[INFO] [stdout] 7 |     pub err_ctor: Option<syn::Path>,
[INFO] [stdout]   |         ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.82s
[INFO] running `Command { std: "docker" "inspect" "07e405cb217149000239c92c362a3c7541d88e7a5a23a707b8bef7c0f9d4e3c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07e405cb217149000239c92c362a3c7541d88e7a5a23a707b8bef7c0f9d4e3c4", kill_on_drop: false }`
[INFO] [stdout] 07e405cb217149000239c92c362a3c7541d88e7a5a23a707b8bef7c0f9d4e3c4
[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=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@sha256:819108c5571ea2e421544af4d832f968d213c87fbe3707a016657f43d2f853bc" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2025-01-18" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c2083cb1717acaad2ea0098ac6b88b9e4c19f30c1d76e0d3a9370a5716a685b3
[INFO] running `Command { std: "docker" "start" "-a" "c2083cb1717acaad2ea0098ac6b88b9e4c19f30c1d76e0d3a9370a5716a685b3", kill_on_drop: false }`
[INFO] [stderr] warning: the feature `bind_by_move_pattern_guards` has been stable since 1.39.0 and no longer requires an attribute to enable
[INFO] [stderr]   --> src/lib.rs:66:12
[INFO] [stderr]    |
[INFO] [stderr] 66 | #![feature(bind_by_move_pattern_guards, proc_macro_diagnostic, proc_macro_span)]
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(stable_features)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field `err_ctor` is never read
[INFO] [stderr]  --> src/attr.rs:7:9
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub struct PrimAttrs {
[INFO] [stderr]   |            --------- field in this struct
[INFO] [stderr] 6 |     pub min_ty: Option<IntTy>,
[INFO] [stderr] 7 |     pub err_ctor: Option<syn::Path>,
[INFO] [stderr]   |         ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `proper` (lib) generated 2 warnings
[INFO] [stderr] warning: `proper` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/proper-898cac4845a74b70)
[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 proper
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - (line 16) ... FAILED
[INFO] [stdout] test src/lib.rs - (line 54) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 16) stdout ----
[INFO] [stdout] error[E0468]: an `extern crate` loading macros must be at the crate root
[INFO] [stdout]  --> src/lib.rs:18:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | extern crate proper;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^
[INFO] [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/lib.rs:35:34
[INFO] [stdout]    |
[INFO] [stdout] 2  | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_16_0() {
[INFO] [stdout]    |                                      ---------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 21 | let e_u8 = EnumU8::try_from(42u8)?;
[INFO] [stdout]    |                                  ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `FromResidual<Result<Infallible, ()>>` is not implemented for `()`
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]    |
[INFO] [stdout] 2  ~ fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_16_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout] 3  | #[macro_use]
[INFO] [stdout] ...
[INFO] [stdout] 26 | let prim = e_u16 as u8;
[INFO] [stdout] 27 +     Ok(())
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `EnumU8: TryFrom<u16>` is not satisfied
[INFO] [stdout]   --> src/lib.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 22 | let e_u8 = EnumU8::try_from(42u16)?;   // won't compile!
[INFO] [stdout]    |            ^^^^^^ the trait `From<u16>` is not implemented for `EnumU8`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `TryFrom<u16>` is not implemented for `EnumU8`
[INFO] [stdout]            but trait `TryFrom<u8>` is implemented for it
[INFO] [stdout]    = help: for that trait implementation, expected `u8`, found `u16`
[INFO] [stdout]    = note: required for `u16` to implement `Into<EnumU8>`
[INFO] [stdout]    = note: required for `EnumU8` to implement `TryFrom<u16>`
[INFO] [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/lib.rs:36:35
[INFO] [stdout]    |
[INFO] [stdout] 2  | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_16_0() {
[INFO] [stdout]    |                                      ---------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 22 | let e_u8 = EnumU8::try_from(42u16)?;   // won't compile!
[INFO] [stdout]    |                                   ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `FromResidual<Result<Infallible, Infallible>>` is not implemented for `()`
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]    |
[INFO] [stdout] 2  ~ fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_16_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout] 3  | #[macro_use]
[INFO] [stdout] ...
[INFO] [stdout] 26 | let prim = e_u16 as u8;
[INFO] [stdout] 27 +     Ok(())
[INFO] [stdout]    |
[INFO] [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/lib.rs:37:37
[INFO] [stdout]    |
[INFO] [stdout] 2  | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_16_0() {
[INFO] [stdout]    |                                      ---------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 23 | let e_u16 = EnumU16::try_from(42u16)?; // compiles!
[INFO] [stdout]    |                                     ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `FromResidual<Result<Infallible, ()>>` is not implemented for `()`
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]    |
[INFO] [stdout] 2  ~ fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_16_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout] 3  | #[macro_use]
[INFO] [stdout] ...
[INFO] [stdout] 26 | let prim = e_u16 as u8;
[INFO] [stdout] 27 +     Ok(())
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `EnumU8: From<u16>` is not satisfied
[INFO] [stdout]   --> src/lib.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 22 | let e_u8 = EnumU8::try_from(42u16)?;   // won't compile!
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^ the trait `From<u16>` is not implemented for `EnumU8`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `TryFrom<u16>` is not implemented for `EnumU8`
[INFO] [stdout]            but trait `TryFrom<u8>` is implemented for it
[INFO] [stdout]    = help: for that trait implementation, expected `u8`, found `u16`
[INFO] [stdout]    = note: required for `u16` to implement `Into<EnumU8>`
[INFO] [stdout]    = note: required for `EnumU8` to implement `TryFrom<u16>`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 6 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0468.
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - (line 54) stdout ----
[INFO] [stdout] error[E0468]: an `extern crate` loading macros must be at the crate root
[INFO] [stdout]  --> src/lib.rs:56:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | extern crate proper;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `u16: From<FileDescriptor>` is not satisfied
[INFO] [stdout]   --> src/lib.rs:62:20
[INFO] [stdout]    |
[INFO] [stdout] 10 | let prim: u16 = fd.into(); // won't compile!
[INFO] [stdout]    |                    ^^^^ the trait `From<FileDescriptor>` is not implemented for `u16`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the following other types implement trait `From<T>`:
[INFO] [stdout]              `u16` implements `From<Char>`
[INFO] [stdout]              `u16` implements `From<bool>`
[INFO] [stdout]              `u16` implements `From<u8>`
[INFO] [stdout]    = note: required for `FileDescriptor` to implement `Into<u16>`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0468.
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 16)
[INFO] [stdout]     src/lib.rs - (line 54)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.15s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "c2083cb1717acaad2ea0098ac6b88b9e4c19f30c1d76e0d3a9370a5716a685b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c2083cb1717acaad2ea0098ac6b88b9e4c19f30c1d76e0d3a9370a5716a685b3", kill_on_drop: false }`
[INFO] [stdout] c2083cb1717acaad2ea0098ac6b88b9e4c19f30c1d76e0d3a9370a5716a685b3
