[INFO] fetching crate Boa 0.13.1...
[INFO] checking Boa-0.13.1 against master#e6e4f7ed1589e03bc2f6c5931c1a72e7947e8682 for beta-170-4
[INFO] extracting crate Boa 0.13.1 into /workspace/builds/worker-7-tc2/source
[INFO] validating manifest of crates.io crate Boa 0.13.1 on toolchain e6e4f7ed1589e03bc2f6c5931c1a72e7947e8682
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e6e4f7ed1589e03bc2f6c5931c1a72e7947e8682" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate Boa 0.13.1
[INFO] finished tweaking crates.io crate Boa 0.13.1
[INFO] tweaked toml for crates.io crate Boa 0.13.1 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate crates.io crate Boa 0.13.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e6e4f7ed1589e03bc2f6c5931c1a72e7947e8682" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+e6e4f7ed1589e03bc2f6c5931c1a72e7947e8682" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9ca3d161af3daa965aef4c519f1bda79204d0f24560faa8ab68f53559ac943a9
[INFO] running `Command { std: "docker" "start" "-a" "9ca3d161af3daa965aef4c519f1bda79204d0f24560faa8ab68f53559ac943a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9ca3d161af3daa965aef4c519f1bda79204d0f24560faa8ab68f53559ac943a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ca3d161af3daa965aef4c519f1bda79204d0f24560faa8ab68f53559ac943a9", kill_on_drop: false }`
[INFO] [stdout] 9ca3d161af3daa965aef4c519f1bda79204d0f24560faa8ab68f53559ac943a9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+e6e4f7ed1589e03bc2f6c5931c1a72e7947e8682" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 61be7e45bd6f8f60a758d98b54c2f90d6f1b1e8b39248a12fbe2b15a55cb713a
[INFO] running `Command { std: "docker" "start" "-a" "61be7e45bd6f8f60a758d98b54c2f90d6f1b1e8b39248a12fbe2b15a55cb713a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.44
[INFO] [stderr]    Compiling unicode-ident v1.0.4
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling libc v0.2.133
[INFO] [stderr]    Compiling syn v1.0.100
[INFO] [stderr]    Compiling serde_derive v1.0.145
[INFO] [stderr]    Compiling serde v1.0.145
[INFO] [stderr]    Compiling crossbeam-utils v0.8.11
[INFO] [stderr]     Checking once_cell v1.15.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.10
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling rayon-core v1.9.3
[INFO] [stderr]     Checking ryu v1.0.11
[INFO] [stderr]    Compiling serde_json v1.0.85
[INFO] [stderr]    Compiling fs_extra v1.2.0
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling unicode-xid v0.2.4
[INFO] [stderr]    Compiling unicode-general-category v0.4.0
[INFO] [stderr]     Checking either v1.8.0
[INFO] [stderr]     Checking itoa v1.0.3
[INFO] [stderr]    Compiling rayon v1.5.3
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling indexmap v1.9.1
[INFO] [stderr]     Checking unicode-width v0.1.10
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]     Checking plotters-backend v0.3.4
[INFO] [stderr]     Checking tinyvec v1.6.0
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking iana-time-zone v0.1.50
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking itoa v0.4.8
[INFO] [stderr]     Checking half v1.8.2
[INFO] [stderr]     Checking cast v0.3.0
[INFO] [stderr]     Checking regex-syntax v0.6.27
[INFO] [stderr]     Checking crossbeam-channel v0.5.6
[INFO] [stderr]     Checking plotters-svg v0.3.3
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking walkdir v2.3.2
[INFO] [stderr]     Checking regress v0.4.1
[INFO] [stderr]     Checking rustc-hash v1.1.0
[INFO] [stderr]     Checking dyn-clone v1.0.9
[INFO] [stderr]     Checking fast-float v0.2.0
[INFO] [stderr]     Checking crossbeam-deque v0.8.2
[INFO] [stderr]     Checking oorandom v11.1.3
[INFO] [stderr]     Checking ryu-js v0.2.2
[INFO] [stderr]     Checking getrandom v0.2.7
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking plotters v0.3.4
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking float-cmp v0.9.0
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking unicode-normalization v0.1.22
[INFO] [stderr]    Compiling jemalloc-sys v0.3.2
[INFO] [stderr]     Checking chrono v0.4.22
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking regex v1.6.0
[INFO] [stderr]     Checking criterion-plot v0.4.5
[INFO] [stderr]     Checking boa_unicode v0.13.0
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling gc_derive v0.4.1
[INFO] [stderr]     Checking gc v0.4.1
[INFO] [stderr]     Checking bstr v0.2.17
[INFO] [stderr]     Checking serde_cbor v0.11.2
[INFO] [stderr]     Checking csv v1.1.6
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking criterion v0.3.6
[INFO] [stderr]     Checking Boa v0.13.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `#[must_use]` has no effect when applied to a type alias
[INFO] [stdout]   --> src/lib.rs:86:1
[INFO] [stdout]    |
[INFO] [stdout] 86 | #[must_use]
[INFO] [stdout]    | ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `use_last_index` is never read
[INFO] [stdout]   --> src/builtins/regexp/mod.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub struct RegExp {
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 42 |     use_last_index: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `RegExp` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `is_default` is never read
[INFO] [stdout]   --> src/syntax/parser/statement/declaration/hoistable/function_decl/mod.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub(super) struct FunctionDeclaration {
[INFO] [stdout]    |                   ------------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 28 |     is_default: AllowDefault,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `FunctionDeclaration` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stdout]    --> src/context.rs:858:9
[INFO] [stdout]     |
[INFO] [stdout] 858 |         drop(main_timer);
[INFO] [stdout]     |         ^^^^^----------^
[INFO] [stdout]     |              |
[INFO] [stdout]     |              argument has type `()`
[INFO] [stdout]     |
[INFO] [stdout]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     = note: `#[warn(dropping_copy_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unreachable `pub` item
[INFO] [stdout]   --> src/value/mod.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub use equality::*;
[INFO] [stdout]    | ---     ^^^^^^^^
[INFO] [stdout]    | |
[INFO] [stdout]    | help: consider restricting its visibility: `pub(crate)`
[INFO] [stdout]    |
[INFO] [stdout]    = help: or consider exporting it for use by other crates
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     unreachable_pub,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unreachable `pub` item
[INFO] [stdout]   --> src/value/mod.rs:36:9
[INFO] [stdout]    |
[INFO] [stdout] 36 | pub use hash::*;
[INFO] [stdout]    | ---     ^^^^
[INFO] [stdout]    | |
[INFO] [stdout]    | help: consider restricting its visibility: `pub(crate)`
[INFO] [stdout]    |
[INFO] [stdout]    = help: or consider exporting it for use by other crates
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `Boa` (lib) due to 3 previous errors; 4 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "61be7e45bd6f8f60a758d98b54c2f90d6f1b1e8b39248a12fbe2b15a55cb713a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "61be7e45bd6f8f60a758d98b54c2f90d6f1b1e8b39248a12fbe2b15a55cb713a", kill_on_drop: false }`
[INFO] [stdout] 61be7e45bd6f8f60a758d98b54c2f90d6f1b1e8b39248a12fbe2b15a55cb713a
