[INFO] fetching crate failure_derive_without_backtrace 0.1.2...
[INFO] testing failure_derive_without_backtrace-0.1.2 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate failure_derive_without_backtrace 0.1.2 into /workspace/builds/worker-18/source
[INFO] validating manifest of crates.io crate failure_derive_without_backtrace 0.1.2 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate failure_derive_without_backtrace 0.1.2
[INFO] finished tweaking crates.io crate failure_derive_without_backtrace 0.1.2
[INFO] tweaked toml for crates.io crate failure_derive_without_backtrace 0.1.2 written to /workspace/builds/worker-18/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 320b1e46d5a0899cfcf51c04ff68ca463566ea2cbaa9e61e0472411b77728448
[INFO] running `Command { std: "docker" "start" "-a" "320b1e46d5a0899cfcf51c04ff68ca463566ea2cbaa9e61e0472411b77728448", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "320b1e46d5a0899cfcf51c04ff68ca463566ea2cbaa9e61e0472411b77728448", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "320b1e46d5a0899cfcf51c04ff68ca463566ea2cbaa9e61e0472411b77728448", kill_on_drop: false }`
[INFO] [stdout] 320b1e46d5a0899cfcf51c04ff68ca463566ea2cbaa9e61e0472411b77728448
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f3b69648d97114f37519baf9cfd9effc0c3b07a43d0a2436c5ebbbe02d9bbae6
[INFO] running `Command { std: "docker" "start" "-a" "f3b69648d97114f37519baf9cfd9effc0c3b07a43d0a2436c5ebbbe02d9bbae6", kill_on_drop: false }`
[INFO] [stderr]    Compiling failure_derive_without_backtrace v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]    Compiling synstructure v0.9.0
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.35s
[INFO] running `Command { std: "docker" "inspect" "f3b69648d97114f37519baf9cfd9effc0c3b07a43d0a2436c5ebbbe02d9bbae6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3b69648d97114f37519baf9cfd9effc0c3b07a43d0a2436c5ebbbe02d9bbae6", kill_on_drop: false }`
[INFO] [stdout] f3b69648d97114f37519baf9cfd9effc0c3b07a43d0a2436c5ebbbe02d9bbae6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 168fdfd25f42095d95661cebfb7c75e736ac0c8ad7e9d40b2cfcd6cbe4a6c8aa
[INFO] running `Command { std: "docker" "start" "-a" "168fdfd25f42095d95661cebfb7c75e736ac0c8ad7e9d40b2cfcd6cbe4a6c8aa", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling failure_derive_without_backtrace v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0463]: can't find crate for `failure`
[INFO] [stdout]  --> tests/backtrace.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | extern crate failure;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0463]: can't find crate for `failure_derive`
[INFO] [stdout]  --> tests/backtrace.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | extern crate failure_derive;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0463]: can't find crate for `failure`
[INFO] [stdout]  --> tests/wraps.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | extern crate failure;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0463]: can't find crate for `failure_derive`
[INFO] [stdout]  --> tests/wraps.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | extern crate failure_derive;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0463]: can't find crate for `failure`
[INFO] [stdout]  --> tests/tests.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | extern crate failure;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0463]: can't find crate for `failure_derive`
[INFO] [stdout]  --> tests/tests.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | extern crate failure_derive;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0463]: can't find crate for `failure`
[INFO] [stdout]  --> tests/no_derive_display.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | extern crate failure;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0463]: can't find crate for `failure_derive`
[INFO] [stdout]  --> tests/no_derive_display.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | extern crate failure_derive;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find derive macro `Fail` in this scope
[INFO] [stdout]  --> tests/backtrace.rs:7:10
[INFO] [stdout]   |
[INFO] [stdout] 7 | #[derive(Fail, Debug)]
[INFO] [stdout]   |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `fail` in this scope
[INFO] [stdout]  --> tests/backtrace.rs:8:3
[INFO] [stdout]   |
[INFO] [stdout] 8 | #[fail(display = "Error code: {}", code)]
[INFO] [stdout]   |   ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find derive macro `Fail` in this scope
[INFO] [stdout]   --> tests/backtrace.rs:25:10
[INFO] [stdout]    |
[INFO] [stdout] 25 | #[derive(Fail, Debug)]
[INFO] [stdout]    |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `fail` in this scope
[INFO] [stdout]   --> tests/backtrace.rs:26:3
[INFO] [stdout]    |
[INFO] [stdout] 26 | #[fail(display = "An error has occurred.")]
[INFO] [stdout]    |   ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find derive macro `Fail` in this scope
[INFO] [stdout]   --> tests/backtrace.rs:37:10
[INFO] [stdout]    |
[INFO] [stdout] 37 | #[derive(Fail, Debug)]
[INFO] [stdout]    |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0463]: can't find crate for `failure`
[INFO] [stdout]  --> tests/custom_type_bounds.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | extern crate failure;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `fail` in this scope
[INFO] [stdout]   --> tests/backtrace.rs:39:7
[INFO] [stdout]    |
[INFO] [stdout] 39 |     #[fail(display = "Error code: {}", code)]
[INFO] [stdout]    |       ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `fail` in this scope
[INFO] [stdout]   --> tests/backtrace.rs:41:7
[INFO] [stdout]    |
[INFO] [stdout] 41 |     #[fail(display = "Error: {}", _0)]
[INFO] [stdout]    |       ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `fail` in this scope
[INFO] [stdout]   --> tests/backtrace.rs:43:7
[INFO] [stdout]    |
[INFO] [stdout] 43 |     #[fail(display = "An error has occurred.")]
[INFO] [stdout]    |       ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find derive macro `Fail` in this scope
[INFO] [stdout]   --> tests/wraps.rs:10:10
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[derive(Fail, Debug)]
[INFO] [stdout]    |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find derive macro `Fail` in this scope
[INFO] [stdout]  --> tests/tests.rs:5:10
[INFO] [stdout]   |
[INFO] [stdout] 5 | #[derive(Fail, Debug)]
[INFO] [stdout]   |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `fail` in this scope
[INFO] [stdout]   --> tests/wraps.rs:11:3
[INFO] [stdout]    |
[INFO] [stdout] 11 | #[fail(display = "An error has occurred: {}", inner)]
[INFO] [stdout]    |   ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `fail` in this scope
[INFO] [stdout]   --> tests/wraps.rs:13:7
[INFO] [stdout]    |
[INFO] [stdout] 13 |     #[fail(cause)]
[INFO] [stdout]    |       ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find derive macro `Fail` in this scope
[INFO] [stdout]   --> tests/wraps.rs:28:10
[INFO] [stdout]    |
[INFO] [stdout] 28 | #[derive(Fail, Debug)]
[INFO] [stdout]    |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `fail` in this scope
[INFO] [stdout]   --> tests/wraps.rs:29:3
[INFO] [stdout]    |
[INFO] [stdout] 29 | #[fail(display = "An error has occurred: {}", _0)]
[INFO] [stdout]    |   ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `fail` in this scope
[INFO] [stdout]   --> tests/wraps.rs:30:25
[INFO] [stdout]    |
[INFO] [stdout] 30 | struct WrapTupleError(#[fail(cause)] io::Error);
[INFO] [stdout]    |                         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find derive macro `Fail` in this scope
[INFO] [stdout]   --> tests/wraps.rs:43:10
[INFO] [stdout]    |
[INFO] [stdout] 43 | #[derive(Fail, Debug)]
[INFO] [stdout]    |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `fail` in this scope
[INFO] [stdout]   --> tests/wraps.rs:44:3
[INFO] [stdout]    |
[INFO] [stdout] 44 | #[fail(display = "An error has occurred: {}", inner)]
[INFO] [stdout]    |   ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `fail` in this scope
[INFO] [stdout]   --> tests/wraps.rs:46:7
[INFO] [stdout]    |
[INFO] [stdout] 46 |     #[fail(cause)]
[INFO] [stdout]    |       ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find derive macro `Fail` in this scope
[INFO] [stdout]   --> tests/wraps.rs:66:10
[INFO] [stdout]    |
[INFO] [stdout] 66 | #[derive(Fail, Debug)]
[INFO] [stdout]    |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `fail` in this scope
[INFO] [stdout]   --> tests/wraps.rs:68:7
[INFO] [stdout]    |
[INFO] [stdout] 68 |     #[fail(display = "An error has occurred: {}", _0)]
[INFO] [stdout]    |       ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `fail` in this scope
[INFO] [stdout]  --> tests/tests.rs:6:3
[INFO] [stdout]   |
[INFO] [stdout] 6 | #[fail(display = "An error has occurred.")]
[INFO] [stdout]   |   ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find derive macro `Fail` in this scope
[INFO] [stdout]   --> tests/tests.rs:15:10
[INFO] [stdout]    |
[INFO] [stdout] 15 | #[derive(Fail, Debug)]
[INFO] [stdout]    |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `fail` in this scope
[INFO] [stdout]   --> tests/tests.rs:16:3
[INFO] [stdout]    |
[INFO] [stdout] 16 | #[fail(display = "Error code: {}", code)]
[INFO] [stdout]    |   ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find derive macro `Fail` in this scope
[INFO] [stdout]   --> tests/tests.rs:27:10
[INFO] [stdout]    |
[INFO] [stdout] 27 | #[derive(Fail, Debug)]
[INFO] [stdout]    |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `fail` in this scope
[INFO] [stdout]   --> tests/tests.rs:28:3
[INFO] [stdout]    |
[INFO] [stdout] 28 | #[fail(display = "Error code: {}", _0)]
[INFO] [stdout]    |   ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find derive macro `Fail` in this scope
[INFO] [stdout]   --> tests/tests.rs:37:10
[INFO] [stdout]    |
[INFO] [stdout] 37 | #[derive(Fail, Debug)]
[INFO] [stdout]    |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `fail` in this scope
[INFO] [stdout]   --> tests/wraps.rs:69:10
[INFO] [stdout]    |
[INFO] [stdout] 69 |     Io(#[fail(cause)] io::Error),
[INFO] [stdout]    |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `fail` in this scope
[INFO] [stdout]   --> tests/wraps.rs:70:7
[INFO] [stdout]    |
[INFO] [stdout] 70 |     #[fail(display = "An error has occurred: {}", inner)]
[INFO] [stdout]    |       ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `fail` in this scope
[INFO] [stdout]   --> tests/wraps.rs:72:11
[INFO] [stdout]    |
[INFO] [stdout] 72 |         #[fail(cause)]
[INFO] [stdout]    |           ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `fail` in this scope
[INFO] [stdout]   --> tests/tests.rs:39:7
[INFO] [stdout]    |
[INFO] [stdout] 39 |     #[fail(display = "Error code: {}", code)]
[INFO] [stdout]    |       ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `fail` in this scope
[INFO] [stdout]   --> tests/tests.rs:41:7
[INFO] [stdout]    |
[INFO] [stdout] 41 |     #[fail(display = "Error: {}", _0)]
[INFO] [stdout]    |       ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `fail` in this scope
[INFO] [stdout]   --> tests/tests.rs:43:7
[INFO] [stdout]    |
[INFO] [stdout] 43 |     #[fail(display = "An error has occurred.")]
[INFO] [stdout]    |       ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find derive macro `Fail` in this scope
[INFO] [stdout]  --> tests/no_derive_display.rs:8:17
[INFO] [stdout]   |
[INFO] [stdout] 8 | #[derive(Debug, Fail)]
[INFO] [stdout]   |                 ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Backtrace` in this scope
[INFO] [stdout]   --> tests/backtrace.rs:10:16
[INFO] [stdout]    |
[INFO] [stdout] 10 |     backtrace: Backtrace,
[INFO] [stdout]    |                ^^^^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 5  | use std::backtrace::Backtrace;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Backtrace`
[INFO] [stdout]   --> tests/backtrace.rs:17:20
[INFO] [stdout]    |
[INFO] [stdout] 17 |         backtrace: Backtrace::new(),
[INFO] [stdout]    |                    ^^^^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 5  | use std::backtrace::Backtrace;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Backtrace` in this scope
[INFO] [stdout]   --> tests/backtrace.rs:27:28
[INFO] [stdout]    |
[INFO] [stdout] 27 | struct BacktraceTupleError(Backtrace);
[INFO] [stdout]    |                            ^^^^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 5  | use std::backtrace::Backtrace;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Backtrace`
[INFO] [stdout]   --> tests/backtrace.rs:31:35
[INFO] [stdout]    |
[INFO] [stdout] 31 |     let err = BacktraceTupleError(Backtrace::new());
[INFO] [stdout]    |                                   ^^^^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 5  | use std::backtrace::Backtrace;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find derive macro `Fail` in this scope
[INFO] [stdout]  --> tests/custom_type_bounds.rs:8:17
[INFO] [stdout]   |
[INFO] [stdout] 8 | #[derive(Debug, Fail)]
[INFO] [stdout]   |                 ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Backtrace` in this scope
[INFO] [stdout]   --> tests/backtrace.rs:40:43
[INFO] [stdout]    |
[INFO] [stdout] 40 |     StructVariant { code: i32, backtrace: Backtrace },
[INFO] [stdout]    |                                           ^^^^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 5  | use std::backtrace::Backtrace;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Backtrace` in this scope
[INFO] [stdout]   --> tests/backtrace.rs:42:32
[INFO] [stdout]    |
[INFO] [stdout] 42 |     TupleVariant(&'static str, Backtrace),
[INFO] [stdout]    |                                ^^^^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 5  | use std::backtrace::Backtrace;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Backtrace`
[INFO] [stdout]   --> tests/backtrace.rs:51:20
[INFO] [stdout]    |
[INFO] [stdout] 51 |         backtrace: Backtrace::new(),
[INFO] [stdout]    |                    ^^^^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 5  | use std::backtrace::Backtrace;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Backtrace`
[INFO] [stdout]   --> tests/backtrace.rs:56:58
[INFO] [stdout]    |
[INFO] [stdout] 56 |     let err = BacktraceEnumError::TupleVariant("foobar", Backtrace::new());
[INFO] [stdout]    |                                                          ^^^^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 5  | use std::backtrace::Backtrace;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `fail` in this scope
[INFO] [stdout]  --> tests/custom_type_bounds.rs:9:3
[INFO] [stdout]   |
[INFO] [stdout] 9 | #[fail(display = "An error has occurred.")]
[INFO] [stdout]   |   ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Backtrace` in this scope
[INFO] [stdout]   --> tests/wraps.rs:48:16
[INFO] [stdout]    |
[INFO] [stdout] 48 |     backtrace: Backtrace,
[INFO] [stdout]    |                ^^^^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 5  | use std::backtrace::Backtrace;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Backtrace`
[INFO] [stdout]   --> tests/wraps.rs:56:20
[INFO] [stdout]    |
[INFO] [stdout] 56 |         backtrace: Backtrace::new(),
[INFO] [stdout]    |                    ^^^^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 5  | use std::backtrace::Backtrace;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find derive macro `Fail` in this scope
[INFO] [stdout]   --> tests/custom_type_bounds.rs:18:17
[INFO] [stdout]    |
[INFO] [stdout] 18 | #[derive(Debug, Fail)]
[INFO] [stdout]    |                 ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `fail` in this scope
[INFO] [stdout]   --> tests/custom_type_bounds.rs:19:3
[INFO] [stdout]    |
[INFO] [stdout] 19 | #[fail(display = "An error has occurred: {}", _0)]
[INFO] [stdout]    |   ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Backtrace` in this scope
[INFO] [stdout]   --> tests/wraps.rs:74:20
[INFO] [stdout]    |
[INFO] [stdout] 74 |         backtrace: Backtrace,
[INFO] [stdout]    |                    ^^^^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 5  | use std::backtrace::Backtrace;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Backtrace`
[INFO] [stdout]   --> tests/wraps.rs:91:20
[INFO] [stdout]    |
[INFO] [stdout] 91 |         backtrace: Backtrace::new(),
[INFO] [stdout]    |                    ^^^^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 5  | use std::backtrace::Backtrace;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find derive macro `Fail` in this scope
[INFO] [stdout]   --> tests/custom_type_bounds.rs:33:17
[INFO] [stdout]    |
[INFO] [stdout] 33 | #[derive(Debug, Fail)]
[INFO] [stdout]    |                 ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `fail` in this scope
[INFO] [stdout]   --> tests/custom_type_bounds.rs:34:3
[INFO] [stdout]    |
[INFO] [stdout] 34 | #[fail(display = "An error has occurred: {:?}", _0)]
[INFO] [stdout]    |   ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0405]: cannot find trait `Fail` in this scope
[INFO] [stdout]   --> tests/custom_type_bounds.rs:20:43
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub struct FailBoundsGenericTupleError<T: Fail>(T);
[INFO] [stdout]    |                                           ^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `UnitError` doesn't implement `std::fmt::Display`
[INFO] [stdout]   --> tests/tests.rs:11:27
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let s = format!("{}", UnitError);
[INFO] [stdout]    |                           ^^^^^^^^^ `UnitError` cannot be formatted with the default formatter
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `std::fmt::Display` is not implemented for `UnitError`
[INFO] [stdout]    = note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead
[INFO] [stdout]    = note: this error originates in the macro `$crate::__export::format_args` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 8 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0405, E0463.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0405`.
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `RecordError` doesn't implement `std::fmt::Display`
[INFO] [stdout]   --> tests/tests.rs:23:27
[INFO] [stdout]    |
[INFO] [stdout] 23 |     let s = format!("{}", RecordError { code: 0 });
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^^^^^^^^^ `RecordError` cannot be formatted with the default formatter
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `std::fmt::Display` is not implemented for `RecordError`
[INFO] [stdout]    = note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead
[INFO] [stdout]    = note: this error originates in the macro `$crate::__export::format_args` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `failure_derive_without_backtrace` due to 9 previous errors
[INFO] [stdout] error[E0277]: `TupleError` doesn't implement `std::fmt::Display`
[INFO] [stdout]   --> tests/tests.rs:33:27
[INFO] [stdout]    |
[INFO] [stdout] 33 |     let s = format!("{}", TupleError(2));
[INFO] [stdout]    |                           ^^^^^^^^^^^^^ `TupleError` cannot be formatted with the default formatter
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `std::fmt::Display` is not implemented for `TupleError`
[INFO] [stdout]    = note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead
[INFO] [stdout]    = note: this error originates in the macro `$crate::__export::format_args` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0277]: `BacktraceError` doesn't implement `std::fmt::Display`
[INFO] [stdout]   --> tests/backtrace.rs:20:27
[INFO] [stdout]    |
[INFO] [stdout] 20 |     let s = format!("{}", err);
[INFO] [stdout]    |                           ^^^ `BacktraceError` cannot be formatted with the default formatter
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `std::fmt::Display` is not implemented for `BacktraceError`
[INFO] [stdout]    = note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead
[INFO] [stdout]    = note: this error originates in the macro `$crate::__export::format_args` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `EnumError` doesn't implement `std::fmt::Display`
[INFO] [stdout]   --> tests/tests.rs:49:27
[INFO] [stdout]    |
[INFO] [stdout] 49 |     let s = format!("{}", EnumError::StructVariant { code: 2 });
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `EnumError` cannot be formatted with the default formatter
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `std::fmt::Display` is not implemented for `EnumError`
[INFO] [stdout]    = note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead
[INFO] [stdout]    = note: this error originates in the macro `$crate::__export::format_args` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `EnumError` doesn't implement `std::fmt::Display`
[INFO] [stdout]   --> tests/tests.rs:51:27
[INFO] [stdout]    |
[INFO] [stdout] 51 |     let s = format!("{}", EnumError::TupleVariant("foobar"));
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `EnumError` cannot be formatted with the default formatter
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `std::fmt::Display` is not implemented for `EnumError`
[INFO] [stdout]    = note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead
[INFO] [stdout]    = note: this error originates in the macro `$crate::__export::format_args` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `EnumError` doesn't implement `std::fmt::Display`
[INFO] [stdout]   --> tests/tests.rs:53:27
[INFO] [stdout]    |
[INFO] [stdout] 53 |     let s = format!("{}", EnumError::UnitVariant);
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^^^^^^^^ `EnumError` cannot be formatted with the default formatter
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `std::fmt::Display` is not implemented for `EnumError`
[INFO] [stdout]    = note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead
[INFO] [stdout]    = note: this error originates in the macro `$crate::__export::format_args` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 18 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0463.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `backtrace` found for struct `BacktraceError` in the current scope
[INFO] [stdout]   --> tests/backtrace.rs:22:17
[INFO] [stdout]    |
[INFO] [stdout] 9  | struct BacktraceError {
[INFO] [stdout]    | --------------------- method `backtrace` not found for this
[INFO] [stdout] ...
[INFO] [stdout] 22 |     assert!(err.backtrace().is_some());
[INFO] [stdout]    |                 ^^^^^^^^^-- help: remove the arguments
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 field, not a method
[INFO] [stdout]    |
[INFO] [stdout]    = help: items from traits can only be used if the trait is implemented and in scope
[INFO] [stdout]    = note: the following trait defines an item `backtrace`, perhaps you need to implement it:
[INFO] [stdout]            candidate #1: `std::error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `BacktraceTupleError` doesn't implement `std::fmt::Display`
[INFO] [stdout]   --> tests/backtrace.rs:32:27
[INFO] [stdout]    |
[INFO] [stdout] 32 |     let s = format!("{}", err);
[INFO] [stdout]    |                           ^^^ `BacktraceTupleError` cannot be formatted with the default formatter
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `std::fmt::Display` is not implemented for `BacktraceTupleError`
[INFO] [stdout]    = note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead
[INFO] [stdout]    = note: this error originates in the macro `$crate::__export::format_args` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `cause` found for struct `Foo` in the current scope
[INFO] [stdout]   --> tests/no_derive_display.rs:19:17
[INFO] [stdout]    |
[INFO] [stdout] 9  | struct Foo;
[INFO] [stdout]    | ----------- method `cause` not found for this
[INFO] [stdout] ...
[INFO] [stdout] 19 |     assert!(Foo.cause().is_none());
[INFO] [stdout]    |                 ^^^^^ method not found in `Foo`
[INFO] [stdout]    |
[INFO] [stdout]    = help: items from traits can only be used if the trait is implemented and in scope
[INFO] [stdout]    = note: the following trait defines an item `cause`, perhaps you need to implement it:
[INFO] [stdout]            candidate #1: `std::error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `failure_derive_without_backtrace` due to 19 previous errors
[INFO] [stdout] error[E0599]: no method named `cause` found for struct `WrapError` in the current scope
[INFO] [stdout]   --> tests/wraps.rs:22:13
[INFO] [stdout]    |
[INFO] [stdout] 12 | struct WrapError {
[INFO] [stdout]    | ---------------- method `cause` not found for this
[INFO] [stdout] ...
[INFO] [stdout] 22 |         err.cause()
[INFO] [stdout]    |             ^^^^^ method not found in `WrapError`
[INFO] [stdout]    |
[INFO] [stdout]    = help: items from traits can only be used if the trait is implemented and in scope
[INFO] [stdout]    = note: the following trait defines an item `cause`, perhaps you need to implement it:
[INFO] [stdout]            candidate #1: `std::error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0463, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `backtrace` found for struct `BacktraceTupleError` in the current scope
[INFO] [stdout]   --> tests/backtrace.rs:34:17
[INFO] [stdout]    |
[INFO] [stdout] 27 | struct BacktraceTupleError(Backtrace);
[INFO] [stdout]    | -------------------------------------- method `backtrace` not found for this
[INFO] [stdout] ...
[INFO] [stdout] 34 |     assert!(err.backtrace().is_some());
[INFO] [stdout]    |                 ^^^^^^^^^ method not found in `BacktraceTupleError`
[INFO] [stdout]    |
[INFO] [stdout]    = help: items from traits can only be used if the trait is implemented and in scope
[INFO] [stdout]    = note: the following trait defines an item `backtrace`, perhaps you need to implement it:
[INFO] [stdout]            candidate #1: `std::error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `cause` found for struct `WrapTupleError` in the current scope
[INFO] [stdout]   --> tests/wraps.rs:37:13
[INFO] [stdout]    |
[INFO] [stdout] 30 | struct WrapTupleError(#[fail(cause)] io::Error);
[INFO] [stdout]    | ------------------------------------------------ method `cause` not found for this
[INFO] [stdout] ...
[INFO] [stdout] 37 |         err.cause()
[INFO] [stdout]    |             ^^^^^ method not found in `WrapTupleError`
[INFO] [stdout]    |
[INFO] [stdout]    = help: items from traits can only be used if the trait is implemented and in scope
[INFO] [stdout]    = note: the following trait defines an item `cause`, perhaps you need to implement it:
[INFO] [stdout]            candidate #1: `std::error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `BacktraceEnumError` doesn't implement `std::fmt::Display`
[INFO] [stdout]   --> tests/backtrace.rs:53:27
[INFO] [stdout]    |
[INFO] [stdout] 53 |     let s = format!("{}", err);
[INFO] [stdout]    |                           ^^^ `BacktraceEnumError` cannot be formatted with the default formatter
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `std::fmt::Display` is not implemented for `BacktraceEnumError`
[INFO] [stdout]    = note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead
[INFO] [stdout]    = note: this error originates in the macro `$crate::__export::format_args` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `cause` found for struct `WrapBacktraceError` in the current scope
[INFO] [stdout]   --> tests/wraps.rs:59:13
[INFO] [stdout]    |
[INFO] [stdout] 45 | struct WrapBacktraceError {
[INFO] [stdout]    | ------------------------- method `cause` not found for this
[INFO] [stdout] ...
[INFO] [stdout] 59 |         err.cause()
[INFO] [stdout]    |             ^^^^^ method not found in `WrapBacktraceError`
[INFO] [stdout]    |
[INFO] [stdout]    = help: items from traits can only be used if the trait is implemented and in scope
[INFO] [stdout]    = note: the following trait defines an item `cause`, perhaps you need to implement it:
[INFO] [stdout]            candidate #1: `std::error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `failure_derive_without_backtrace` due to 5 previous errors
[INFO] [stdout] error[E0599]: no method named `backtrace` found for enum `BacktraceEnumError` in the current scope
[INFO] [stdout]   --> tests/backtrace.rs:55:17
[INFO] [stdout]    |
[INFO] [stdout] 38 | enum BacktraceEnumError {
[INFO] [stdout]    | ----------------------- method `backtrace` not found for this
[INFO] [stdout] ...
[INFO] [stdout] 55 |     assert!(err.backtrace().is_some());
[INFO] [stdout]    |                 ^^^^^^^^^ method not found in `BacktraceEnumError`
[INFO] [stdout]    |
[INFO] [stdout]    = help: items from traits can only be used if the trait is implemented and in scope
[INFO] [stdout]    = note: the following trait defines an item `backtrace`, perhaps you need to implement it:
[INFO] [stdout]            candidate #1: `std::error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `BacktraceEnumError` doesn't implement `std::fmt::Display`
[INFO] [stdout]   --> tests/backtrace.rs:57:27
[INFO] [stdout]    |
[INFO] [stdout] 57 |     let s = format!("{}", err);
[INFO] [stdout]    |                           ^^^ `BacktraceEnumError` cannot be formatted with the default formatter
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `std::fmt::Display` is not implemented for `BacktraceEnumError`
[INFO] [stdout]    = note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead
[INFO] [stdout]    = note: this error originates in the macro `$crate::__export::format_args` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `backtrace` found for struct `WrapBacktraceError` in the current scope
[INFO] [stdout]   --> tests/wraps.rs:63:17
[INFO] [stdout]    |
[INFO] [stdout] 45 | struct WrapBacktraceError {
[INFO] [stdout]    | ------------------------- method `backtrace` not found for this
[INFO] [stdout] ...
[INFO] [stdout] 63 |     assert!(err.backtrace().is_some());
[INFO] [stdout]    |                 ^^^^^^^^^-- help: remove the arguments
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 field, not a method
[INFO] [stdout]    |
[INFO] [stdout]    = help: items from traits can only be used if the trait is implemented and in scope
[INFO] [stdout]    = note: the following trait defines an item `backtrace`, perhaps you need to implement it:
[INFO] [stdout]            candidate #1: `std::error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `backtrace` found for enum `BacktraceEnumError` in the current scope
[INFO] [stdout]   --> tests/backtrace.rs:59:17
[INFO] [stdout]    |
[INFO] [stdout] 38 | enum BacktraceEnumError {
[INFO] [stdout]    | ----------------------- method `backtrace` not found for this
[INFO] [stdout] ...
[INFO] [stdout] 59 |     assert!(err.backtrace().is_some());
[INFO] [stdout]    |                 ^^^^^^^^^ method not found in `BacktraceEnumError`
[INFO] [stdout]    |
[INFO] [stdout]    = help: items from traits can only be used if the trait is implemented and in scope
[INFO] [stdout]    = note: the following trait defines an item `backtrace`, perhaps you need to implement it:
[INFO] [stdout]            candidate #1: `std::error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `BacktraceEnumError` doesn't implement `std::fmt::Display`
[INFO] [stdout]   --> tests/backtrace.rs:61:27
[INFO] [stdout]    |
[INFO] [stdout] 61 |     let s = format!("{}", err);
[INFO] [stdout]    |                           ^^^ `BacktraceEnumError` cannot be formatted with the default formatter
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `std::fmt::Display` is not implemented for `BacktraceEnumError`
[INFO] [stdout]    = note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead
[INFO] [stdout]    = note: this error originates in the macro `$crate::__export::format_args` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `cause` found for enum `WrapEnumError` in the current scope
[INFO] [stdout]   --> tests/wraps.rs:83:13
[INFO] [stdout]    |
[INFO] [stdout] 67 | enum WrapEnumError {
[INFO] [stdout]    | ------------------ method `cause` not found for this
[INFO] [stdout] ...
[INFO] [stdout] 83 |         err.cause()
[INFO] [stdout]    |             ^^^^^ method not found in `WrapEnumError`
[INFO] [stdout]    |
[INFO] [stdout]    = help: items from traits can only be used if the trait is implemented and in scope
[INFO] [stdout]    = note: the following trait defines an item `cause`, perhaps you need to implement it:
[INFO] [stdout]            candidate #1: `std::error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `backtrace` found for enum `BacktraceEnumError` in the current scope
[INFO] [stdout]   --> tests/backtrace.rs:63:17
[INFO] [stdout]    |
[INFO] [stdout] 38 | enum BacktraceEnumError {
[INFO] [stdout]    | ----------------------- method `backtrace` not found for this
[INFO] [stdout] ...
[INFO] [stdout] 63 |     assert!(err.backtrace().is_none());
[INFO] [stdout]    |                 ^^^^^^^^^ method not found in `BacktraceEnumError`
[INFO] [stdout]    |
[INFO] [stdout]    = help: items from traits can only be used if the trait is implemented and in scope
[INFO] [stdout]    = note: the following trait defines an item `backtrace`, perhaps you need to implement it:
[INFO] [stdout]            candidate #1: `std::error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `backtrace` found for enum `WrapEnumError` in the current scope
[INFO] [stdout]   --> tests/wraps.rs:87:17
[INFO] [stdout]    |
[INFO] [stdout] 67 | enum WrapEnumError {
[INFO] [stdout]    | ------------------ method `backtrace` not found for this
[INFO] [stdout] ...
[INFO] [stdout] 87 |     assert!(err.backtrace().is_none());
[INFO] [stdout]    |                 ^^^^^^^^^ method not found in `WrapEnumError`
[INFO] [stdout]    |
[INFO] [stdout]    = help: items from traits can only be used if the trait is implemented and in scope
[INFO] [stdout]    = note: the following trait defines an item `backtrace`, perhaps you need to implement it:
[INFO] [stdout]            candidate #1: `std::error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `cause` found for enum `WrapEnumError` in the current scope
[INFO] [stdout]   --> tests/wraps.rs:94:13
[INFO] [stdout]    |
[INFO] [stdout] 67 | enum WrapEnumError {
[INFO] [stdout]    | ------------------ method `cause` not found for this
[INFO] [stdout] ...
[INFO] [stdout] 94 |         err.cause()
[INFO] [stdout]    |             ^^^^^ method not found in `WrapEnumError`
[INFO] [stdout]    |
[INFO] [stdout]    = help: items from traits can only be used if the trait is implemented and in scope
[INFO] [stdout]    = note: the following trait defines an item `cause`, perhaps you need to implement it:
[INFO] [stdout]            candidate #1: `std::error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 28 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0412, E0433, E0463, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `backtrace` found for enum `WrapEnumError` in the current scope
[INFO] [stdout]   --> tests/wraps.rs:98:17
[INFO] [stdout]    |
[INFO] [stdout] 67 | enum WrapEnumError {
[INFO] [stdout]    | ------------------ method `backtrace` not found for this
[INFO] [stdout] ...
[INFO] [stdout] 98 |     assert!(err.backtrace().is_some());
[INFO] [stdout]    |                 ^^^^^^^^^ method not found in `WrapEnumError`
[INFO] [stdout]    |
[INFO] [stdout]    = help: items from traits can only be used if the trait is implemented and in scope
[INFO] [stdout]    = note: the following trait defines an item `backtrace`, perhaps you need to implement it:
[INFO] [stdout]            candidate #1: `std::error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `failure_derive_without_backtrace` due to 29 previous errors
[INFO] [stdout] error: aborting due to 28 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `failure_derive_without_backtrace` due to 29 previous errors
[INFO] [stdout] Some errors have detailed explanations: E0412, E0433, E0463, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0412`.
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "168fdfd25f42095d95661cebfb7c75e736ac0c8ad7e9d40b2cfcd6cbe4a6c8aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "168fdfd25f42095d95661cebfb7c75e736ac0c8ad7e9d40b2cfcd6cbe4a6c8aa", kill_on_drop: false }`
[INFO] [stdout] 168fdfd25f42095d95661cebfb7c75e736ac0c8ad7e9d40b2cfcd6cbe4a6c8aa