[INFO] fetching crate unwrap_none 0.1.1...
[INFO] testing unwrap_none-0.1.1 against 1.54.0 for beta-1.55-1
[INFO] extracting crate unwrap_none 0.1.1 into /workspace/builds/worker-55/source
[INFO] validating manifest of crates.io crate unwrap_none 0.1.1 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate unwrap_none 0.1.1
[INFO] finished tweaking crates.io crate unwrap_none 0.1.1
[INFO] tweaked toml for crates.io crate unwrap_none 0.1.1 written to /workspace/builds/worker-55/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ec013a0eb5ee375ec224443b07662ccc36589fb0ddfef489a46ff5642eb03992
[INFO] running `Command { std: "docker" "start" "-a" "ec013a0eb5ee375ec224443b07662ccc36589fb0ddfef489a46ff5642eb03992", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ec013a0eb5ee375ec224443b07662ccc36589fb0ddfef489a46ff5642eb03992", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec013a0eb5ee375ec224443b07662ccc36589fb0ddfef489a46ff5642eb03992", kill_on_drop: false }`
[INFO] [stdout] ec013a0eb5ee375ec224443b07662ccc36589fb0ddfef489a46ff5642eb03992
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] feff235eb7c97d6280f3d901f65a4a7978a88a330c7606d746952cbc8f598618
[INFO] running `Command { std: "docker" "start" "-a" "feff235eb7c97d6280f3d901f65a4a7978a88a330c7606d746952cbc8f598618", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling unwrap_none v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.81s
[INFO] running `Command { std: "docker" "inspect" "feff235eb7c97d6280f3d901f65a4a7978a88a330c7606d746952cbc8f598618", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "feff235eb7c97d6280f3d901f65a4a7978a88a330c7606d746952cbc8f598618", kill_on_drop: false }`
[INFO] [stdout] feff235eb7c97d6280f3d901f65a4a7978a88a330c7606d746952cbc8f598618
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 36b2bc24c263a2476d7a97dba9c537faab830c3f8ef0f03027fa7095b1e703ea
[INFO] running `Command { std: "docker" "start" "-a" "36b2bc24c263a2476d7a97dba9c537faab830c3f8ef0f03027fa7095b1e703ea", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling unwrap_none v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.65s
[INFO] running `Command { std: "docker" "inspect" "36b2bc24c263a2476d7a97dba9c537faab830c3f8ef0f03027fa7095b1e703ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36b2bc24c263a2476d7a97dba9c537faab830c3f8ef0f03027fa7095b1e703ea", kill_on_drop: false }`
[INFO] [stdout] 36b2bc24c263a2476d7a97dba9c537faab830c3f8ef0f03027fa7095b1e703ea
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 762b9ba8f0b944c743f69590f33b39861e08b3bfe631129e2c9296b6309ba310
[INFO] running `Command { std: "docker" "start" "-a" "762b9ba8f0b944c743f69590f33b39861e08b3bfe631129e2c9296b6309ba310", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.20s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/unwrap_none-ef31a69d78ab5025)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests unwrap_none
[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 4 tests
[INFO] [stdout] test src/lib.rs - UnwrapNone::expect_none (line 26) ... FAILED
[INFO] [stdout] test src/lib.rs - UnwrapNone::unwrap_none (line 50) ... FAILED
[INFO] [stdout] test src/lib.rs - UnwrapNone::expect_none (line 15) ... FAILED
[INFO] [stdout] test src/lib.rs - UnwrapNone::unwrap_none (line 61) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - UnwrapNone::expect_none (line 26) stdout ----
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:26:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(option_expect_none)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `expect_none` found for enum `Option` in the current scope
[INFO] [stdout]   --> src/lib.rs:34:28
[INFO] [stdout]    |
[INFO] [stdout] 10 |     sqrts.insert(i * i, i).expect_none("duplicate key");
[INFO] [stdout]    |                            ^^^^^^^^^^^ method not found in `Option<{integer}>`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0599.
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - UnwrapNone::unwrap_none (line 50) stdout ----
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:49:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(option_unwrap_none)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `unwrap_none` found for enum `Option` in the current scope
[INFO] [stdout]   --> src/lib.rs:57:30
[INFO] [stdout]    |
[INFO] [stdout] 10 |     squares.insert(i, i * i).unwrap_none();
[INFO] [stdout]    |                              ^^^^^^^^^^^
[INFO] [stdout]    | 
[INFO] [stdout]   ::: /opt/rustwide/workdir/src/lib.rs:72:8
[INFO] [stdout]    |
[INFO] [stdout] 72 |     fn unwrap_none(self);
[INFO] [stdout]    |        ----------- the method is available for `Option<{integer}>` here
[INFO] [stdout]    |
[INFO] [stdout]    = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: the following trait is implemented but not in scope; perhaps add a `use` for it:
[INFO] [stdout]    |
[INFO] [stdout] 5  | use crate::unwrap_none::UnwrapNone;
[INFO] [stdout]    |
[INFO] [stdout] help: there is an associated function with a similar name
[INFO] [stdout]    |
[INFO] [stdout] 10 |     squares.insert(i, i * i).unwrap_or();
[INFO] [stdout]    |                              ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0599.
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - UnwrapNone::expect_none (line 15) stdout ----
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:15:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(option_expect_none)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `expect_none` found for enum `Option` in the current scope
[INFO] [stdout]  --> src/lib.rs:22:30
[INFO] [stdout]   |
[INFO] [stdout] 9 |     squares.insert(i, i * i).expect_none("duplicate key");
[INFO] [stdout]   |                              ^^^^^^^^^^^ method not found in `Option<{integer}>`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0599.
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - UnwrapNone::unwrap_none (line 61) stdout ----
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:60:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(option_unwrap_none)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `unwrap_none` found for enum `Option` in the current scope
[INFO] [stdout]   --> src/lib.rs:69:28
[INFO] [stdout]    |
[INFO] [stdout] 11 |     sqrts.insert(i * i, i).unwrap_none();
[INFO] [stdout]    |                            ^^^^^^^^^^^
[INFO] [stdout]    | 
[INFO] [stdout]   ::: /opt/rustwide/workdir/src/lib.rs:72:8
[INFO] [stdout]    |
[INFO] [stdout] 72 |     fn unwrap_none(self);
[INFO] [stdout]    |        ----------- the method is available for `Option<{integer}>` here
[INFO] [stdout]    |
[INFO] [stdout]    = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: the following trait is implemented but not in scope; perhaps add a `use` for it:
[INFO] [stdout]    |
[INFO] [stdout] 5  | use crate::unwrap_none::UnwrapNone;
[INFO] [stdout]    |
[INFO] [stdout] help: there is an associated function with a similar name
[INFO] [stdout]    |
[INFO] [stdout] 11 |     sqrts.insert(i * i, i).unwrap_or();
[INFO] [stdout]    |                            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0599.
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - UnwrapNone::expect_none (line 15)
[INFO] [stdout]     src/lib.rs - UnwrapNone::expect_none (line 26)
[INFO] [stdout]     src/lib.rs - UnwrapNone::unwrap_none (line 50)
[INFO] [stdout]     src/lib.rs - UnwrapNone::unwrap_none (line 61)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 4 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.16s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "762b9ba8f0b944c743f69590f33b39861e08b3bfe631129e2c9296b6309ba310", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "762b9ba8f0b944c743f69590f33b39861e08b3bfe631129e2c9296b6309ba310", kill_on_drop: false }`
[INFO] [stdout] 762b9ba8f0b944c743f69590f33b39861e08b3bfe631129e2c9296b6309ba310
