[INFO] fetching crate fast-map 0.2.1...
[INFO] checking fast-map-0.2.1 against master#b0696a5160711c068cb1f01b7437db7990d15750 for pr-121848
[INFO] extracting crate fast-map 0.2.1 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate fast-map 0.2.1 on toolchain b0696a5160711c068cb1f01b7437db7990d15750
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate fast-map 0.2.1
[INFO] finished tweaking crates.io crate fast-map 0.2.1
[INFO] tweaked toml for crates.io crate fast-map 0.2.1 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded fast-map-derive v0.2.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 213feb86de1fc05bd0bdf432ef096c657d66a67c09d24c87b913270304491dfa
[INFO] running `Command { std: "docker" "start" "-a" "213feb86de1fc05bd0bdf432ef096c657d66a67c09d24c87b913270304491dfa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "213feb86de1fc05bd0bdf432ef096c657d66a67c09d24c87b913270304491dfa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "213feb86de1fc05bd0bdf432ef096c657d66a67c09d24c87b913270304491dfa", kill_on_drop: false }`
[INFO] [stdout] 213feb86de1fc05bd0bdf432ef096c657d66a67c09d24c87b913270304491dfa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e6d04abe3174a8351d165822d9ff302c445d4517bb4813945b8bfa4c5d74536a
[INFO] running `Command { std: "docker" "start" "-a" "e6d04abe3174a8351d165822d9ff302c445d4517bb4813945b8bfa4c5d74536a", kill_on_drop: false }`
[INFO] [stderr]    Compiling fast-map v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling fast-map-derive v0.2.1
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/lib.rs:119:10
[INFO] [stdout]     |
[INFO] [stdout] 119 |         };
[INFO] [stdout]     |          ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `A` and `D` are never constructed
[INFO] [stdout]    --> src/lib.rs:115:13
[INFO] [stdout]     |
[INFO] [stdout] 114 |         pub enum A {
[INFO] [stdout]     |                  - variants in this enum
[INFO] [stdout] 115 |             A,
[INFO] [stdout]     |             ^
[INFO] [stdout] ...
[INFO] [stdout] 118 |             D,
[INFO] [stdout]     |             ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/lib.rs:169:9
[INFO] [stdout]     |
[INFO] [stdout] 169 |         foo.insert(1, "1");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 169 |         let _ = foo.insert(1, "1");
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/lib.rs:170:9
[INFO] [stdout]     |
[INFO] [stdout] 170 |         foo.insert(2, "2");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 170 |         let _ = foo.insert(2, "2");
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/lib.rs:171:9
[INFO] [stdout]     |
[INFO] [stdout] 171 |         foo.insert(3, "3");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 171 |         let _ = foo.insert(3, "3");
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/lib.rs:172:9
[INFO] [stdout]     |
[INFO] [stdout] 172 |         foo.insert(4, "4");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 172 |         let _ = foo.insert(4, "4");
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `fast_map::easy`
[INFO] [stdout]   --> benches/all.rs:12:19
[INFO] [stdout]    |
[INFO] [stdout] 12 |     use fast_map::easy::MapLike;
[INFO] [stdout]    |                   ^^^^ could not find `easy` in `fast_map`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `fast_map::easy`
[INFO] [stdout]   --> benches/all.rs:87:19
[INFO] [stdout]    |
[INFO] [stdout] 87 |     use fast_map::easy::MapLike;
[INFO] [stdout]    |                   ^^^^ could not find `easy` in `fast_map`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> benches/all.rs:19:6
[INFO] [stdout]    |
[INFO] [stdout] 19 |     };
[INFO] [stdout]    |      ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> benches/all.rs:43:6
[INFO] [stdout]    |
[INFO] [stdout] 43 |     };
[INFO] [stdout]    |      ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: `Result<Option<&String>, fast_map::Error>` is not an iterator
[INFO] [stdout]   --> benches/all.rs:31:25
[INFO] [stdout]    |
[INFO] [stdout] 31 |         (foo.get(&A::A).cloned(), foo.get(&A::B).cloned(), foo.get(&A::C).cloned())
[INFO] [stdout]    |                         ^^^^^^ `Result<Option<&String>, fast_map::Error>` is not an iterator
[INFO] [stdout]    |
[INFO] [stdout]    = note: the following trait bounds were not satisfied:
[INFO] [stdout]            `Result<Option<&String>, fast_map::Error>: Iterator`
[INFO] [stdout]            which is required by `&mut Result<Option<&String>, fast_map::Error>: Iterator`
[INFO] [stdout] note: the method `cloned` exists on the type `Option<&String>`
[INFO] [stdout]   --> /rustc/b0696a5160711c068cb1f01b7437db7990d15750/library/core/src/option.rs:1889:5
[INFO] [stdout] help: consider using `Result::expect` to unwrap the `Option<&String>` value, panicking if the value is a `Result::Err`
[INFO] [stdout]    |
[INFO] [stdout] 31 |         (foo.get(&A::A).expect("REASON").cloned(), foo.get(&A::B).cloned(), foo.get(&A::C).cloned())
[INFO] [stdout]    |                        +++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: `Result<Option<&String>, fast_map::Error>` is not an iterator
[INFO] [stdout]   --> benches/all.rs:31:50
[INFO] [stdout]    |
[INFO] [stdout] 31 |         (foo.get(&A::A).cloned(), foo.get(&A::B).cloned(), foo.get(&A::C).cloned())
[INFO] [stdout]    |                                                  ^^^^^^ `Result<Option<&String>, fast_map::Error>` is not an iterator
[INFO] [stdout]    |
[INFO] [stdout]    = note: the following trait bounds were not satisfied:
[INFO] [stdout]            `Result<Option<&String>, fast_map::Error>: Iterator`
[INFO] [stdout]            which is required by `&mut Result<Option<&String>, fast_map::Error>: Iterator`
[INFO] [stdout] note: the method `cloned` exists on the type `Option<&String>`
[INFO] [stdout]   --> /rustc/b0696a5160711c068cb1f01b7437db7990d15750/library/core/src/option.rs:1889:5
[INFO] [stdout] help: consider using `Result::expect` to unwrap the `Option<&String>` value, panicking if the value is a `Result::Err`
[INFO] [stdout]    |
[INFO] [stdout] 31 |         (foo.get(&A::A).cloned(), foo.get(&A::B).expect("REASON").cloned(), foo.get(&A::C).cloned())
[INFO] [stdout]    |                                                 +++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: `Result<Option<&String>, fast_map::Error>` is not an iterator
[INFO] [stdout]   --> benches/all.rs:31:75
[INFO] [stdout]    |
[INFO] [stdout] 31 |         (foo.get(&A::A).cloned(), foo.get(&A::B).cloned(), foo.get(&A::C).cloned())
[INFO] [stdout]    |                                                                           ^^^^^^ `Result<Option<&String>, fast_map::Error>` is not an iterator
[INFO] [stdout]    |
[INFO] [stdout]    = note: the following trait bounds were not satisfied:
[INFO] [stdout]            `Result<Option<&String>, fast_map::Error>: Iterator`
[INFO] [stdout]            which is required by `&mut Result<Option<&String>, fast_map::Error>: Iterator`
[INFO] [stdout] note: the method `cloned` exists on the type `Option<&String>`
[INFO] [stdout]   --> /rustc/b0696a5160711c068cb1f01b7437db7990d15750/library/core/src/option.rs:1889:5
[INFO] [stdout] help: consider using `Result::expect` to unwrap the `Option<&String>` value, panicking if the value is a `Result::Err`
[INFO] [stdout]    |
[INFO] [stdout] 31 |         (foo.get(&A::A).cloned(), foo.get(&A::B).cloned(), foo.get(&A::C).expect("REASON").cloned())
[INFO] [stdout]    |                                                                          +++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: `Result<Option<&Keyword>, fast_map::Error>` is not an iterator
[INFO] [stdout]    --> benches/all.rs:112:34
[INFO] [stdout]     |
[INFO] [stdout] 112 |             keywords.get("loop").cloned(),
[INFO] [stdout]     |                                  ^^^^^^ `Result<Option<&Keyword>, fast_map::Error>` is not an iterator
[INFO] [stdout]     |
[INFO] [stdout]     = note: the following trait bounds were not satisfied:
[INFO] [stdout]             `Result<Option<&Keyword>, fast_map::Error>: Iterator`
[INFO] [stdout]             which is required by `&mut Result<Option<&Keyword>, fast_map::Error>: Iterator`
[INFO] [stdout] note: the method `cloned` exists on the type `Option<&Keyword>`
[INFO] [stdout]    --> /rustc/b0696a5160711c068cb1f01b7437db7990d15750/library/core/src/option.rs:1889:5
[INFO] [stdout] help: consider using `Result::expect` to unwrap the `Option<&Keyword>` value, panicking if the value is a `Result::Err`
[INFO] [stdout]     |
[INFO] [stdout] 112 |             keywords.get("loop").expect("REASON").cloned(),
[INFO] [stdout]     |                                 +++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: `Result<Option<&Keyword>, fast_map::Error>` is not an iterator
[INFO] [stdout]    --> benches/all.rs:113:35
[INFO] [stdout]     |
[INFO] [stdout] 113 |             keywords.get("break").cloned(),
[INFO] [stdout]     |                                   ^^^^^^ `Result<Option<&Keyword>, fast_map::Error>` is not an iterator
[INFO] [stdout]     |
[INFO] [stdout]     = note: the following trait bounds were not satisfied:
[INFO] [stdout]             `Result<Option<&Keyword>, fast_map::Error>: Iterator`
[INFO] [stdout]             which is required by `&mut Result<Option<&Keyword>, fast_map::Error>: Iterator`
[INFO] [stdout] note: the method `cloned` exists on the type `Option<&Keyword>`
[INFO] [stdout]    --> /rustc/b0696a5160711c068cb1f01b7437db7990d15750/library/core/src/option.rs:1889:5
[INFO] [stdout] help: consider using `Result::expect` to unwrap the `Option<&Keyword>` value, panicking if the value is a `Result::Err`
[INFO] [stdout]     |
[INFO] [stdout] 113 |             keywords.get("break").expect("REASON").cloned(),
[INFO] [stdout]     |                                  +++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: `Result<Option<&Keyword>, fast_map::Error>` is not an iterator
[INFO] [stdout]    --> benches/all.rs:114:36
[INFO] [stdout]     |
[INFO] [stdout] 114 |             keywords.get("extern").cloned(),
[INFO] [stdout]     |                                    ^^^^^^ `Result<Option<&Keyword>, fast_map::Error>` is not an iterator
[INFO] [stdout]     |
[INFO] [stdout]     = note: the following trait bounds were not satisfied:
[INFO] [stdout]             `Result<Option<&Keyword>, fast_map::Error>: Iterator`
[INFO] [stdout]             which is required by `&mut Result<Option<&Keyword>, fast_map::Error>: Iterator`
[INFO] [stdout] note: the method `cloned` exists on the type `Option<&Keyword>`
[INFO] [stdout]    --> /rustc/b0696a5160711c068cb1f01b7437db7990d15750/library/core/src/option.rs:1889:5
[INFO] [stdout] help: consider using `Result::expect` to unwrap the `Option<&Keyword>` value, panicking if the value is a `Result::Err`
[INFO] [stdout]     |
[INFO] [stdout] 114 |             keywords.get("extern").expect("REASON").cloned(),
[INFO] [stdout]     |                                   +++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 8 previous errors; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `fast-map` (bench "all") due to 9 previous errors; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "e6d04abe3174a8351d165822d9ff302c445d4517bb4813945b8bfa4c5d74536a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6d04abe3174a8351d165822d9ff302c445d4517bb4813945b8bfa4c5d74536a", kill_on_drop: false }`
[INFO] [stdout] e6d04abe3174a8351d165822d9ff302c445d4517bb4813945b8bfa4c5d74536a
