[INFO] fetching crate warc 0.4.0...
[INFO] building warc-0.4.0 against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] extracting crate warc 0.4.0 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate warc 0.4.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate warc 0.4.0
[INFO] tweaked toml for crates.io crate warc 0.4.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate warc 0.4.0 on toolchain c7f6aa2869acdbf014d094c6e427e554e160b6db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate warc 0.4.0 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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rle-decode-fast v1.0.3
[INFO] [stderr]   Downloaded url v2.5.3
[INFO] [stderr]   Downloaded libflate v1.4.0
[INFO] [stderr]   Downloaded libflate_lz77 v1.2.0
[INFO] [stderr]   Downloaded libc v0.2.164
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 54df9c577f4a0bc6a8dcd0723235e91c3ecc67a2f2adc77504cec508aa61e25d
[INFO] running `Command { std: "docker" "start" "-a" "54df9c577f4a0bc6a8dcd0723235e91c3ecc67a2f2adc77504cec508aa61e25d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "54df9c577f4a0bc6a8dcd0723235e91c3ecc67a2f2adc77504cec508aa61e25d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "54df9c577f4a0bc6a8dcd0723235e91c3ecc67a2f2adc77504cec508aa61e25d", kill_on_drop: false }`
[INFO] [stdout] 54df9c577f4a0bc6a8dcd0723235e91c3ecc67a2f2adc77504cec508aa61e25d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c29c2933a03ea3c9c5961d3a37295a1aa077ca334ff3741d3b8d9585fdf2cbb9
[INFO] running `Command { std: "docker" "start" "-a" "c29c2933a03ea3c9c5961d3a37295a1aa077ca334ff3741d3b8d9585fdf2cbb9", kill_on_drop: false }`
[INFO] [stderr]    Compiling litemap v0.7.3
[INFO] [stderr]    Compiling icu_locid_transform_data v1.5.0
[INFO] [stderr]    Compiling icu_properties_data v1.5.0
[INFO] [stderr]    Compiling libc v0.2.164
[INFO] [stderr]    Compiling icu_normalizer_data v1.5.0
[INFO] [stderr]    Compiling syn v2.0.87
[INFO] [stderr]    Compiling smallvec v1.13.2
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling rle-decode-fast v1.0.3
[INFO] [stderr]    Compiling percent-encoding v2.3.1
[INFO] [stderr]    Compiling crc32fast v1.4.2
[INFO] [stderr]    Compiling libflate_lz77 v1.2.0
[INFO] [stderr]    Compiling iana-time-zone v0.1.61
[INFO] [stderr]    Compiling form_urlencoded v1.2.1
[INFO] [stderr]    Compiling adler32 v1.2.0
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]    Compiling libflate v1.4.0
[INFO] [stderr]    Compiling getrandom v0.2.15
[INFO] [stderr]    Compiling chrono v0.4.38
[INFO] [stderr]    Compiling uuid v0.8.2
[INFO] [stderr]    Compiling synstructure v0.13.1
[INFO] [stderr]    Compiling zerovec-derive v0.10.3
[INFO] [stderr]    Compiling displaydoc v0.2.5
[INFO] [stderr]    Compiling icu_provider_macros v1.5.0
[INFO] [stderr]    Compiling zerofrom-derive v0.1.4
[INFO] [stderr]    Compiling yoke-derive v0.7.4
[INFO] [stderr]    Compiling zerofrom v0.1.4
[INFO] [stderr]    Compiling yoke v0.7.4
[INFO] [stderr]    Compiling zerovec v0.10.4
[INFO] [stderr]    Compiling tinystr v0.7.6
[INFO] [stderr]    Compiling icu_collections v1.5.0
[INFO] [stderr]    Compiling icu_locid v1.5.0
[INFO] [stderr]    Compiling icu_provider v1.5.0
[INFO] [stderr]    Compiling icu_locid_transform v1.5.0
[INFO] [stderr]    Compiling icu_properties v1.5.1
[INFO] [stderr]    Compiling icu_normalizer v1.5.0
[INFO] [stderr]    Compiling idna_adapter v1.2.0
[INFO] [stderr]    Compiling idna v1.0.3
[INFO] [stderr]    Compiling url v2.5.3
[INFO] [stderr]    Compiling warc v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/record.rs:400:39
[INFO] [stdout]     |
[INFO] [stdout] 400 |                 Ok(old_type.map(|old| (Cow::Owned(old.to_string()))))
[INFO] [stdout]     |                                       ^                           ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 400 -                 Ok(old_type.map(|old| (Cow::Owned(old.to_string()))))
[INFO] [stdout] 400 +                 Ok(old_type.map(|old| Cow::Owned(old.to_string()) ))
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 30.26s
[INFO] running `Command { std: "docker" "inspect" "c29c2933a03ea3c9c5961d3a37295a1aa077ca334ff3741d3b8d9585fdf2cbb9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c29c2933a03ea3c9c5961d3a37295a1aa077ca334ff3741d3b8d9585fdf2cbb9", kill_on_drop: false }`
[INFO] [stdout] c29c2933a03ea3c9c5961d3a37295a1aa077ca334ff3741d3b8d9585fdf2cbb9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b768b43a23177a5f55f1a0b4727777edcbea1dc8d6bae25a3a0ade661107b2c7
[INFO] running `Command { std: "docker" "start" "-a" "b768b43a23177a5f55f1a0b4727777edcbea1dc8d6bae25a3a0ade661107b2c7", kill_on_drop: false }`
[INFO] [stderr]    Compiling warc v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/record.rs:400:39
[INFO] [stdout]     |
[INFO] [stdout] 400 |                 Ok(old_type.map(|old| (Cow::Owned(old.to_string()))))
[INFO] [stdout]     |                                       ^                           ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 400 -                 Ok(old_type.map(|old| (Cow::Owned(old.to_string()))))
[INFO] [stdout] 400 +                 Ok(old_type.map(|old| Cow::Owned(old.to_string()) ))
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/record.rs:400:39
[INFO] [stdout]     |
[INFO] [stdout] 400 |                 Ok(old_type.map(|old| (Cow::Owned(old.to_string()))))
[INFO] [stdout]     |                                       ^                           ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 400 -                 Ok(old_type.map(|old| (Cow::Owned(old.to_string()))))
[INFO] [stdout] 400 +                 Ok(old_type.map(|old| Cow::Owned(old.to_string()) ))
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 2.80s
[INFO] running `Command { std: "docker" "inspect" "b768b43a23177a5f55f1a0b4727777edcbea1dc8d6bae25a3a0ade661107b2c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b768b43a23177a5f55f1a0b4727777edcbea1dc8d6bae25a3a0ade661107b2c7", kill_on_drop: false }`
[INFO] [stdout] b768b43a23177a5f55f1a0b4727777edcbea1dc8d6bae25a3a0ade661107b2c7