[INFO] fetching crate json 0.12.4...
[INFO] checking json-0.12.4 against try#1d0e7c032bf9b905a3165592072b5cc63c491d50 for pr-133502-5
[INFO] extracting crate json 0.12.4 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate json 0.12.4 on toolchain 1d0e7c032bf9b905a3165592072b5cc63c491d50
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1d0e7c032bf9b905a3165592072b5cc63c491d50" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate json 0.12.4
[INFO] finished tweaking crates.io crate json 0.12.4
[INFO] tweaked toml for crates.io crate json 0.12.4 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1d0e7c032bf9b905a3165592072b5cc63c491d50" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1d0e7c032bf9b905a3165592072b5cc63c491d50" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+1d0e7c032bf9b905a3165592072b5cc63c491d50" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9bcb4732b6c63e6d63c5a04dcc30615d9acc786f4ed5800b7390a9597dc72238
[INFO] running `Command { std: "docker" "start" "-a" "9bcb4732b6c63e6d63c5a04dcc30615d9acc786f4ed5800b7390a9597dc72238", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9bcb4732b6c63e6d63c5a04dcc30615d9acc786f4ed5800b7390a9597dc72238", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9bcb4732b6c63e6d63c5a04dcc30615d9acc786f4ed5800b7390a9597dc72238", kill_on_drop: false }`
[INFO] [stdout] 9bcb4732b6c63e6d63c5a04dcc30615d9acc786f4ed5800b7390a9597dc72238
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+1d0e7c032bf9b905a3165592072b5cc63c491d50" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4e13d8eb3ab07d12a0f4107de9a03dcf0571a1889875a35bf07ef8e0ee418479
[INFO] running `Command { std: "docker" "start" "-a" "4e13d8eb3ab07d12a0f4107de9a03dcf0571a1889875a35bf07ef8e0ee418479", kill_on_drop: false }`
[INFO] [stderr]     Checking json v0.12.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/parser.rs:433:30
[INFO] [stdout]     |
[INFO] [stdout] 433 |             b'0' ..= b'9' => (ch - b'0'),
[INFO] [stdout]     |                              ^         ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 433 -             b'0' ..= b'9' => (ch - b'0'),
[INFO] [stdout] 433 +             b'0' ..= b'9' => ch - b'0',
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/parser.rs:434:30
[INFO] [stdout]     |
[INFO] [stdout] 434 |             b'a' ..= b'f' => (ch + 10 - b'a'),
[INFO] [stdout]     |                              ^              ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 434 -             b'a' ..= b'f' => (ch + 10 - b'a'),
[INFO] [stdout] 434 +             b'a' ..= b'f' => ch + 10 - b'a',
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/parser.rs:435:30
[INFO] [stdout]     |
[INFO] [stdout] 435 |             b'A' ..= b'F' => (ch + 10 - b'A'),
[INFO] [stdout]     |                              ^              ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 435 -             b'A' ..= b'F' => (ch + 10 - b'A'),
[INFO] [stdout] 435 +             b'A' ..= b'F' => ch + 10 - b'A',
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/parser.rs:433:30
[INFO] [stdout]     |
[INFO] [stdout] 433 |             b'0' ..= b'9' => (ch - b'0'),
[INFO] [stdout]     |                              ^         ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 433 -             b'0' ..= b'9' => (ch - b'0'),
[INFO] [stdout] 433 +             b'0' ..= b'9' => ch - b'0',
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/parser.rs:434:30
[INFO] [stdout]     |
[INFO] [stdout] 434 |             b'a' ..= b'f' => (ch + 10 - b'a'),
[INFO] [stdout]     |                              ^              ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 434 -             b'a' ..= b'f' => (ch + 10 - b'a'),
[INFO] [stdout] 434 +             b'a' ..= b'f' => ch + 10 - b'a',
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/parser.rs:435:30
[INFO] [stdout]     |
[INFO] [stdout] 435 |             b'A' ..= b'F' => (ch + 10 - b'A'),
[INFO] [stdout]     |                              ^              ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 435 -             b'A' ..= b'F' => (ch + 10 - b'A'),
[INFO] [stdout] 435 +             b'A' ..= b'F' => ch + 10 - b'A',
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary transmute
[INFO] [stdout]   --> src/util/diyfp.rs:53:22
[INFO] [stdout]    |
[INFO] [stdout] 53 |         let u: u64 = mem::transmute(d);
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^ help: replace this with: `f64::to_bits(d)`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unnecessary_transmutes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary transmute
[INFO] [stdout]   --> src/util/diyfp.rs:53:22
[INFO] [stdout]    |
[INFO] [stdout] 53 |         let u: u64 = mem::transmute(d);
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^ help: replace this with: `f64::to_bits(d)`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unnecessary_transmutes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[macro_use]` only has an effect on `extern crate` and modules
[INFO] [stdout]   --> benches/log.rs:17:1
[INFO] [stdout]    |
[INFO] [stdout] 17 | #[macro_use]
[INFO] [stdout]    | ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `json::JsonValue::to_writer`: use `JsonValue::write` instead
[INFO] [stdout]    --> benches/log.rs:269:14
[INFO] [stdout]     |
[INFO] [stdout] 269 |         data.to_writer(&mut target);
[INFO] [stdout]     |              ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `json::JsonValue::to_writer`: use `JsonValue::write` instead
[INFO] [stdout]    --> benches/log.rs:293:14
[INFO] [stdout]     |
[INFO] [stdout] 293 |         data.to_writer(&mut target);
[INFO] [stdout]     |              ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.23s
[INFO] running `Command { std: "docker" "inspect" "4e13d8eb3ab07d12a0f4107de9a03dcf0571a1889875a35bf07ef8e0ee418479", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4e13d8eb3ab07d12a0f4107de9a03dcf0571a1889875a35bf07ef8e0ee418479", kill_on_drop: false }`
[INFO] [stdout] 4e13d8eb3ab07d12a0f4107de9a03dcf0571a1889875a35bf07ef8e0ee418479