[INFO] fetching crate strum 0.20.0...
[INFO] testing strum-0.20.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate strum 0.20.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate strum 0.20.0 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate strum 0.20.0
[INFO] finished tweaking crates.io crate strum 0.20.0
[INFO] tweaked toml for crates.io crate strum 0.20.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3c6f6a463b8a568312a6a7e069f3d8fdea6b2c9d8bea4f07947b59dfa5eeef0a
[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" "3c6f6a463b8a568312a6a7e069f3d8fdea6b2c9d8bea4f07947b59dfa5eeef0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3c6f6a463b8a568312a6a7e069f3d8fdea6b2c9d8bea4f07947b59dfa5eeef0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c6f6a463b8a568312a6a7e069f3d8fdea6b2c9d8bea4f07947b59dfa5eeef0a", kill_on_drop: false }`
[INFO] [stdout] 3c6f6a463b8a568312a6a7e069f3d8fdea6b2c9d8bea4f07947b59dfa5eeef0a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 185f47c1f3fda1b9285f5fe19de3f39d60a52d8e80155aae50e11bad06768db2
[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" "185f47c1f3fda1b9285f5fe19de3f39d60a52d8e80155aae50e11bad06768db2", kill_on_drop: false }`
[INFO] [stderr]    Compiling strum v0.20.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.70s
[INFO] running `Command { std: "docker" "inspect" "185f47c1f3fda1b9285f5fe19de3f39d60a52d8e80155aae50e11bad06768db2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "185f47c1f3fda1b9285f5fe19de3f39d60a52d8e80155aae50e11bad06768db2", kill_on_drop: false }`
[INFO] [stdout] 185f47c1f3fda1b9285f5fe19de3f39d60a52d8e80155aae50e11bad06768db2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 534ccf2f15e126ac88243ccf24f099764085f7b707078ef8be59fc943a8efc14
[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" "534ccf2f15e126ac88243ccf24f099764085f7b707078ef8be59fc943a8efc14", kill_on_drop: false }`
[INFO] [stderr]    Compiling strum_macros v0.20.1
[INFO] [stderr]    Compiling strum v0.20.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 5.78s
[INFO] running `Command { std: "docker" "inspect" "534ccf2f15e126ac88243ccf24f099764085f7b707078ef8be59fc943a8efc14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "534ccf2f15e126ac88243ccf24f099764085f7b707078ef8be59fc943a8efc14", kill_on_drop: false }`
[INFO] [stdout] 534ccf2f15e126ac88243ccf24f099764085f7b707078ef8be59fc943a8efc14
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] eca7b8a00c62abf646aee3ded1515d99d88916b14805363de937be01ce4971b7
[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" "eca7b8a00c62abf646aee3ded1515d99d88916b14805363de937be01ce4971b7", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/strum-bc6c08fdd1684842
[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
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests strum
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test src/additional_attributes.rs - additional_attributes (line 51) ... ignored
[INFO] [stdout] test src/lib.rs - IntoEnumIterator (line 65) ... FAILED
[INFO] [stdout] test src/lib.rs - EnumMessage (line 103) ... FAILED
[INFO] [stdout] test src/lib.rs - EnumProperty (line 134) ... FAILED
[INFO] [stdout] test src/additional_attributes.rs - additional_attributes (line 7) ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - IntoEnumIterator (line 65) stdout ----
[INFO] [stdout] error[E0432]: unresolved import `strum::EnumIter`
[INFO] [stdout]  --> src/lib.rs:68:13
[INFO] [stdout]   |
[INFO] [stdout] 6 | use strum::{EnumIter, IntoEnumIterator};
[INFO] [stdout]   |             ^^^^^^^^ no `EnumIter` in the root
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the derive macro `EnumIter`
[INFO] [stdout]  --> src/lib.rs:70:10
[INFO] [stdout]   |
[INFO] [stdout] 8 | #[derive(EnumIter, Debug)]
[INFO] [stdout]   |          ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `Color: IntoEnumIterator` is not satisfied
[INFO] [stdout]   --> src/lib.rs:89:1
[INFO] [stdout]    |
[INFO] [stdout] 17 | fn generic_iterator<E, F>(pred: F)
[INFO] [stdout]    |    ---------------- required by a bound in this
[INFO] [stdout] 18 | where
[INFO] [stdout] 19 |     E: IntoEnumIterator,
[INFO] [stdout]    |        ---------------- required by this bound in `generic_iterator`
[INFO] [stdout] ...
[INFO] [stdout] 27 | generic_iterator::<Color, _>(|color| println!("{:?}", color));
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `IntoEnumIterator` is not implemented for `Color`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0432.
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - EnumMessage (line 103) stdout ----
[INFO] [stdout] error: cannot find derive macro `EnumMessage` in this scope
[INFO] [stdout]  --> src/lib.rs:108:32
[INFO] [stdout]   |
[INFO] [stdout] 8 | #[derive(PartialEq, Eq, Debug, EnumMessage)]
[INFO] [stdout]   |                                ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `strum` in this scope
[INFO] [stdout]   --> src/lib.rs:110:7
[INFO] [stdout]    |
[INFO] [stdout] 10 |     #[strum(message="I have a dog")]
[INFO] [stdout]    |       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `strum` in this scope
[INFO] [stdout]   --> src/lib.rs:111:7
[INFO] [stdout]    |
[INFO] [stdout] 11 |     #[strum(detailed_message="My dog's name is Spots")]
[INFO] [stdout]    |       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `strum` in this scope
[INFO] [stdout]   --> src/lib.rs:113:7
[INFO] [stdout]    |
[INFO] [stdout] 13 |     #[strum(message="I don't have a cat")]
[INFO] [stdout]    |       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `get_message` found for enum `Pet` in the current scope
[INFO] [stdout]   --> src/lib.rs:118:35
[INFO] [stdout]    |
[INFO] [stdout] 9  | enum Pet {
[INFO] [stdout]    | -------- method `get_message` not found for this
[INFO] [stdout] ...
[INFO] [stdout] 18 | assert_eq!("I have a dog", my_pet.get_message().unwrap());
[INFO] [stdout]    |                                   ^^^^^^^^^^^ method not found in `Pet`
[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 `get_message`, perhaps you need to implement it:
[INFO] [stdout]            candidate #1: `EnumMessage`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - EnumProperty (line 134) stdout ----
[INFO] [stdout] error: cannot find derive macro `EnumProperty` in this scope
[INFO] [stdout]  --> src/lib.rs:139:32
[INFO] [stdout]   |
[INFO] [stdout] 8 | #[derive(PartialEq, Eq, Debug, EnumProperty)]
[INFO] [stdout]   |                                ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `strum` in this scope
[INFO] [stdout]   --> src/lib.rs:141:7
[INFO] [stdout]    |
[INFO] [stdout] 10 |     #[strum(props(Teacher="Ms.Frizzle", Room="201"))]
[INFO] [stdout]    |       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `strum` in this scope
[INFO] [stdout]   --> src/lib.rs:143:7
[INFO] [stdout]    |
[INFO] [stdout] 12 |     #[strum(props(Teacher="Mr.Smith"))]
[INFO] [stdout]    |       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `strum` in this scope
[INFO] [stdout]   --> src/lib.rs:144:7
[INFO] [stdout]    |
[INFO] [stdout] 13 |     #[strum(props(Room="103"))]
[INFO] [stdout]    |       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `strum` in this scope
[INFO] [stdout]   --> src/lib.rs:146:7
[INFO] [stdout]    |
[INFO] [stdout] 15 |     #[strum(props(Time="2:30"))]
[INFO] [stdout]    |       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `get_str` found for enum `Class` in the current scope
[INFO] [stdout]   --> src/lib.rs:151:34
[INFO] [stdout]    |
[INFO] [stdout] 9  | enum Class {
[INFO] [stdout]    | ---------- method `get_str` not found for this
[INFO] [stdout] ...
[INFO] [stdout] 20 | assert_eq!("Ms.Frizzle", history.get_str("Teacher").unwrap());
[INFO] [stdout]    |                                  ^^^^^^^ method not found in `Class`
[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 `get_str`, perhaps you need to implement it:
[INFO] [stdout]            candidate #1: `EnumProperty`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 6 previous errors
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - EnumMessage (line 103)
[INFO] [stdout]     src/lib.rs - EnumProperty (line 134)
[INFO] [stdout]     src/lib.rs - IntoEnumIterator (line 65)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 1 passed; 3 failed; 1 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "eca7b8a00c62abf646aee3ded1515d99d88916b14805363de937be01ce4971b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eca7b8a00c62abf646aee3ded1515d99d88916b14805363de937be01ce4971b7", kill_on_drop: false }`
[INFO] [stdout] eca7b8a00c62abf646aee3ded1515d99d88916b14805363de937be01ce4971b7