[INFO] fetching crate proper 0.1.5... [INFO] testing proper-0.1.5 against try#b83b707f97d809763b7861afa7638871f3339a33 for pr-145838-1 [INFO] extracting crate proper 0.1.5 into /workspace/builds/worker-6-tc2/source [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-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate proper 0.1.5 on toolchain b83b707f97d809763b7861afa7638871f3339a33 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "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: v2.0.106) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] cf410baae5ad72f2e43844d9657f86714ac22ed96da4f715c4e7530c1f41a20a [INFO] running `Command { std: "docker" "start" "-a" "cf410baae5ad72f2e43844d9657f86714ac22ed96da4f715c4e7530c1f41a20a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "cf410baae5ad72f2e43844d9657f86714ac22ed96da4f715c4e7530c1f41a20a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "cf410baae5ad72f2e43844d9657f86714ac22ed96da4f715c4e7530c1f41a20a", kill_on_drop: false }` [INFO] [stdout] cf410baae5ad72f2e43844d9657f86714ac22ed96da4f715c4e7530c1f41a20a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 631fad3582d4cb8acc4341e205812b0c3eae9d342b5fcdc66bd0f02c1eacd951 [INFO] running `Command { std: "docker" "start" "-a" "631fad3582d4cb8acc4341e205812b0c3eae9d342b5fcdc66bd0f02c1eacd951", 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: 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, [INFO] [stdout] 7 | pub err_ctor: Option, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.68s [INFO] running `Command { std: "docker" "inspect" "631fad3582d4cb8acc4341e205812b0c3eae9d342b5fcdc66bd0f02c1eacd951", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "631fad3582d4cb8acc4341e205812b0c3eae9d342b5fcdc66bd0f02c1eacd951", kill_on_drop: false }` [INFO] [stdout] 631fad3582d4cb8acc4341e205812b0c3eae9d342b5fcdc66bd0f02c1eacd951 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] d92e94e542c217afe1b18d04f6244da4ba3b52b3ed03c1ab2f4b3ac95da3e98d [INFO] running `Command { std: "docker" "start" "-a" "d92e94e542c217afe1b18d04f6244da4ba3b52b3ed03c1ab2f4b3ac95da3e98d", 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, [INFO] [stdout] 7 | pub err_ctor: Option, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) 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, [INFO] [stdout] 7 | pub err_ctor: Option, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.67s [INFO] running `Command { std: "docker" "inspect" "d92e94e542c217afe1b18d04f6244da4ba3b52b3ed03c1ab2f4b3ac95da3e98d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d92e94e542c217afe1b18d04f6244da4ba3b52b3ed03c1ab2f4b3ac95da3e98d", kill_on_drop: false }` [INFO] [stdout] d92e94e542c217afe1b18d04f6244da4ba3b52b3ed03c1ab2f4b3ac95da3e98d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 96e7eefe5c0d95ab24d4c09f119af6667c0f26fac32571ffc9a077bc44f938b8 [INFO] running `Command { std: "docker" "start" "-a" "96e7eefe5c0d95ab24d4c09f119af6667c0f26fac32571ffc9a077bc44f938b8", 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, [INFO] [stderr] 7 | pub err_ctor: Option, [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) 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 0.05s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/proper-1bb08a2d085a6e3f) [INFO] [stdout] [INFO] [stderr] Doc-tests proper [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] [stdout] [INFO] [stdout] running 2 tests [INFO] [stdout] test src/lib.rs - (line 54) ... FAILED [INFO] [stdout] test src/lib.rs - (line 16) ... FAILED [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] [INFO] [stdout] ---- src/lib.rs - (line 54) stdout ---- [INFO] [stdout] error[E0277]: the trait bound `u16: From` is not satisfied [INFO] [stdout] --> src/lib.rs:61:20 [INFO] [stdout] | [INFO] [stdout] 9 | let prim: u16 = fd.into(); // won't compile! [INFO] [stdout] | ^^^^ the trait `From` is not implemented for `u16` [INFO] [stdout] | [INFO] [stdout] = help: the following other types implement trait `From`: [INFO] [stdout] `u16` implements `From` [INFO] [stdout] `u16` implements `From` [INFO] [stdout] `u16` implements `From` [INFO] [stdout] = note: required for `FileDescriptor` to implement `Into` [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0277`. [INFO] [stdout] Couldn't compile the test. [INFO] [stdout] ---- src/lib.rs - (line 16) 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:34:34 [INFO] [stdout] | [INFO] [stdout] 4 | 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] 20 | let e_u8 = EnumU8::try_from(42u8)?; [INFO] [stdout] | ^ cannot use the `?` operator in a function that returns `()` [INFO] [stdout] | [INFO] [stdout] help: consider adding return type [INFO] [stdout] | [INFO] [stdout] 4 ~ fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_16_0() -> Result<(), Box> { [INFO] [stdout] 5 | use std::convert::TryFrom; [INFO] [stdout] ... [INFO] [stdout] 25 | let prim = e_u16 as u8; [INFO] [stdout] 26 + Ok(()) [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] error[E0277]: the trait bound `EnumU8: TryFrom` is not satisfied [INFO] [stdout] --> src/lib.rs:35:12 [INFO] [stdout] | [INFO] [stdout] 21 | let e_u8 = EnumU8::try_from(42u16)?; // won't compile! [INFO] [stdout] | ^^^^^^ unsatisfied trait bound [INFO] [stdout] | [INFO] [stdout] = help: the trait `TryFrom` is not implemented for `EnumU8` [INFO] [stdout] but trait `TryFrom` is implemented for it [INFO] [stdout] = help: for that trait implementation, expected `u8`, found `u16` [INFO] [stdout] = note: required for `u16` to implement `Into` [INFO] [stdout] = note: required for `EnumU8` to implement `TryFrom` [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:35:35 [INFO] [stdout] | [INFO] [stdout] 4 | 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(42u16)?; // won't compile! [INFO] [stdout] | ^ cannot use the `?` operator in a function that returns `()` [INFO] [stdout] | [INFO] [stdout] help: consider adding return type [INFO] [stdout] | [INFO] [stdout] 4 ~ fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_16_0() -> Result<(), Box> { [INFO] [stdout] 5 | use std::convert::TryFrom; [INFO] [stdout] ... [INFO] [stdout] 25 | let prim = e_u16 as u8; [INFO] [stdout] 26 + 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:36:37 [INFO] [stdout] | [INFO] [stdout] 4 | 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_u16 = EnumU16::try_from(42u16)?; // compiles! [INFO] [stdout] | ^ cannot use the `?` operator in a function that returns `()` [INFO] [stdout] | [INFO] [stdout] help: consider adding return type [INFO] [stdout] | [INFO] [stdout] 4 ~ fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_16_0() -> Result<(), Box> { [INFO] [stdout] 5 | use std::convert::TryFrom; [INFO] [stdout] ... [INFO] [stdout] 25 | let prim = e_u16 as u8; [INFO] [stdout] 26 + Ok(()) [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] error[E0277]: the trait bound `EnumU8: From` is not satisfied [INFO] [stdout] --> src/lib.rs:35:12 [INFO] [stdout] | [INFO] [stdout] 21 | let e_u8 = EnumU8::try_from(42u16)?; // won't compile! [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ unsatisfied trait bound [INFO] [stdout] | [INFO] [stdout] = help: the trait `TryFrom` is not implemented for `EnumU8` [INFO] [stdout] but trait `TryFrom` is implemented for it [INFO] [stdout] = help: for that trait implementation, expected `u8`, found `u16` [INFO] [stdout] = note: required for `u16` to implement `Into` [INFO] [stdout] = note: required for `EnumU8` to implement `TryFrom` [INFO] [stdout] [INFO] [stdout] error: aborting due to 5 previous errors [INFO] [stdout] [INFO] [stdout] For more information about this 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 0.22s [INFO] [stdout] [INFO] [stderr] error: doctest failed, to rerun pass `--doc` [INFO] running `Command { std: "docker" "inspect" "96e7eefe5c0d95ab24d4c09f119af6667c0f26fac32571ffc9a077bc44f938b8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "96e7eefe5c0d95ab24d4c09f119af6667c0f26fac32571ffc9a077bc44f938b8", kill_on_drop: false }` [INFO] [stdout] 96e7eefe5c0d95ab24d4c09f119af6667c0f26fac32571ffc9a077bc44f938b8