[INFO] fetching crate fast-map 0.2.1...
[INFO] checking fast-map-0.2.1 against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170
[INFO] extracting crate fast-map 0.2.1 into /workspace/builds/worker-3-tc1/source
[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-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate fast-map 0.2.1 on toolchain cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 5 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9b85c792122fb0eac7976b2045080c3eee545cdd8f39d5699f239a624a7e2c46
[INFO] running `Command { std: "docker" "start" "-a" "9b85c792122fb0eac7976b2045080c3eee545cdd8f39d5699f239a624a7e2c46", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9b85c792122fb0eac7976b2045080c3eee545cdd8f39d5699f239a624a7e2c46", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b85c792122fb0eac7976b2045080c3eee545cdd8f39d5699f239a624a7e2c46", kill_on_drop: false }`
[INFO] [stdout] 9b85c792122fb0eac7976b2045080c3eee545cdd8f39d5699f239a624a7e2c46
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6fd324d48a8f4f41a637f8bc81b141a5601cbeb6a447107a68679e26a11693d9
[INFO] running `Command { std: "docker" "start" "-a" "6fd324d48a8f4f41a637f8bc81b141a5601cbeb6a447107a68679e26a11693d9", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[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] 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]: no method named `cloned` found for enum `Result<Option<&String>, fast_map::Error>` in the current scope
[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] help: call `.into_iter()` first
[INFO] [stdout]    |
[INFO] [stdout] 31 |         (foo.get(&A::A).into_iter().cloned(), foo.get(&A::B).cloned(), foo.get(&A::C).cloned())
[INFO] [stdout]    |                         ++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `cloned` found for enum `Result<Option<&String>, fast_map::Error>` in the current scope
[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] help: call `.into_iter()` first
[INFO] [stdout]    |
[INFO] [stdout] 31 |         (foo.get(&A::A).cloned(), foo.get(&A::B).into_iter().cloned(), foo.get(&A::C).cloned())
[INFO] [stdout]    |                                                  ++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `cloned` found for enum `Result<Option<&String>, fast_map::Error>` in the current scope
[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] help: call `.into_iter()` first
[INFO] [stdout]    |
[INFO] [stdout] 31 |         (foo.get(&A::A).cloned(), foo.get(&A::B).cloned(), foo.get(&A::C).into_iter().cloned())
[INFO] [stdout]    |                                                                           ++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `cloned` found for enum `Result<Option<&Keyword>, fast_map::Error>` in the current scope
[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] help: call `.into_iter()` first
[INFO] [stdout]     |
[INFO] [stdout] 112 |             keywords.get("loop").into_iter().cloned(),
[INFO] [stdout]     |                                  ++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `cloned` found for enum `Result<Option<&Keyword>, fast_map::Error>` in the current scope
[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] help: call `.into_iter()` first
[INFO] [stdout]     |
[INFO] [stdout] 113 |             keywords.get("break").into_iter().cloned(),
[INFO] [stdout]     |                                   ++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `cloned` found for enum `Result<Option<&Keyword>, fast_map::Error>` in the current scope
[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] help: call `.into_iter()` first
[INFO] [stdout]     |
[INFO] [stdout] 114 |             keywords.get("extern").into_iter().cloned(),
[INFO] [stdout]     |                                    ++++++++++++
[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 8 previous errors; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "6fd324d48a8f4f41a637f8bc81b141a5601cbeb6a447107a68679e26a11693d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6fd324d48a8f4f41a637f8bc81b141a5601cbeb6a447107a68679e26a11693d9", kill_on_drop: false }`
[INFO] [stdout] 6fd324d48a8f4f41a637f8bc81b141a5601cbeb6a447107a68679e26a11693d9