[INFO] fetching crate swc_fast_graph 0.21.10...
[INFO] checking swc_fast_graph-0.21.10 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate swc_fast_graph 0.21.10 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate swc_fast_graph 0.21.10 on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate swc_fast_graph 0.21.10
[INFO] finished tweaking crates.io crate swc_fast_graph 0.21.10
[INFO] tweaked toml for crates.io crate swc_fast_graph 0.21.10 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 59 packages
[INFO] [stderr]       Adding fixedbitset v0.4.2 (latest: v0.5.6)
[INFO] [stderr]       Adding hashbrown v0.12.3 (latest: v0.14.3)
[INFO] [stderr]       Adding indexmap v1.9.3 (latest: v2.2.6)
[INFO] [stderr]       Adding siphasher v0.3.11 (latest: v1.0.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7b13fda7d19cc913bea1238e328eb14ba8a726ae9b6b9af0ef8354ee6bdad5ce
[INFO] running `Command { std: "docker" "start" "-a" "7b13fda7d19cc913bea1238e328eb14ba8a726ae9b6b9af0ef8354ee6bdad5ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7b13fda7d19cc913bea1238e328eb14ba8a726ae9b6b9af0ef8354ee6bdad5ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b13fda7d19cc913bea1238e328eb14ba8a726ae9b6b9af0ef8354ee6bdad5ce", kill_on_drop: false }`
[INFO] [stdout] 7b13fda7d19cc913bea1238e328eb14ba8a726ae9b6b9af0ef8354ee6bdad5ce
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 15c2aeb79ac6a2876baad8b583bd8938ed777cb7b6d088d46f8656e20fe0c031
[INFO] running `Command { std: "docker" "start" "-a" "15c2aeb79ac6a2876baad8b583bd8938ed777cb7b6d088d46f8656e20fe0c031", kill_on_drop: false }`
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]     Checking phf v0.11.2
[INFO] [stderr]    Compiling num-bigint v0.4.4
[INFO] [stderr]     Checking rustc-hash v1.1.0
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]     Checking new_debug_unreachable v1.0.6
[INFO] [stderr]     Checking either v1.10.0
[INFO] [stderr]     Checking better_scoped_tls v0.1.1
[INFO] [stderr]    Compiling regex-automata v0.4.6
[INFO] [stderr]    Compiling regex v1.10.4
[INFO] [stderr]    Compiling Inflector v0.11.4
[INFO] [stderr]    Compiling swc_macros_common v0.3.9
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]    Compiling swc_visit_macros v0.5.11
[INFO] [stderr]    Compiling tracing-attributes v0.1.27
[INFO] [stderr]    Compiling ast_node v0.9.6
[INFO] [stderr]    Compiling swc_eq_ignore_macros v0.1.3
[INFO] [stderr]    Compiling from_variant v0.1.7
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking swc_visit v0.5.10
[INFO] [stderr]     Checking serde v1.0.197
[INFO] [stderr]     Checking triomphe v0.1.11
[INFO] [stderr]     Checking hstr v0.2.8
[INFO] [stderr]     Checking swc_atoms v0.6.5
[INFO] [stderr]     Checking swc_common v0.33.21
[INFO] [stderr]     Checking swc_fast_graph v0.21.10 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `DoubleEndedIterator` is imported redundantly
[INFO] [stdout]   --> src/digraph.rs:10:20
[INFO] [stdout]    |
[INFO] [stdout] 10 |     iter::{Cloned, DoubleEndedIterator, FromIterator},
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `DoubleEndedIterator` is already defined here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `FromIterator` is imported redundantly
[INFO] [stdout]   --> src/digraph.rs:10:41
[INFO] [stdout]    |
[INFO] [stdout] 10 |     iter::{Cloned, DoubleEndedIterator, FromIterator},
[INFO] [stdout]    |                                         ^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `FromIterator` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `DoubleEndedIterator` is imported redundantly
[INFO] [stdout]   --> src/digraph.rs:10:20
[INFO] [stdout]    |
[INFO] [stdout] 10 |     iter::{Cloned, DoubleEndedIterator, FromIterator},
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `DoubleEndedIterator` is already defined here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `FromIterator` is imported redundantly
[INFO] [stdout]   --> src/digraph.rs:10:41
[INFO] [stdout]    |
[INFO] [stdout] 10 |     iter::{Cloned, DoubleEndedIterator, FromIterator},
[INFO] [stdout]    |                                         ^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `FromIterator` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 17.03s
[INFO] running `Command { std: "docker" "inspect" "15c2aeb79ac6a2876baad8b583bd8938ed777cb7b6d088d46f8656e20fe0c031", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15c2aeb79ac6a2876baad8b583bd8938ed777cb7b6d088d46f8656e20fe0c031", kill_on_drop: false }`
[INFO] [stdout] 15c2aeb79ac6a2876baad8b583bd8938ed777cb7b6d088d46f8656e20fe0c031