[INFO] fetching crate headers-accept-encoding 1.1.0...
[INFO] checking headers-accept-encoding-1.1.0 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate headers-accept-encoding 1.1.0 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate headers-accept-encoding 1.1.0
[INFO] finished tweaking crates.io crate headers-accept-encoding 1.1.0
[INFO] tweaked toml for crates.io crate headers-accept-encoding 1.1.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate headers-accept-encoding 1.1.0 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "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" "+998b6603a58e47f42ccce7a67943234e96b6839e" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 20 packages to latest compatible versions
[INFO] [stderr]       Adding base64 v0.21.7 (available: v0.22.1)
[INFO] [stderr]       Adding itertools v0.11.0 (available: v0.14.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while 2021 is compatible with `rust-version`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e18883482cb8886026ce095ec9a3af462aec8ed6a20b9f6332112c432e5491d2
[INFO] running `Command { std: "docker" "start" "-a" "e18883482cb8886026ce095ec9a3af462aec8ed6a20b9f6332112c432e5491d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e18883482cb8886026ce095ec9a3af462aec8ed6a20b9f6332112c432e5491d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e18883482cb8886026ce095ec9a3af462aec8ed6a20b9f6332112c432e5491d2", kill_on_drop: false }`
[INFO] [stdout] e18883482cb8886026ce095ec9a3af462aec8ed6a20b9f6332112c432e5491d2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 838b8447f573e9414351d25790fa26e9f0a3f2889acd1b1e147b9274f68eca30
[INFO] running `Command { std: "docker" "start" "-a" "838b8447f573e9414351d25790fa26e9f0a3f2889acd1b1e147b9274f68eca30", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while 2021 is compatible with `rust-version`
[INFO] [stderr]    Compiling typenum v1.18.0
[INFO] [stderr]    Compiling version_check v0.9.5
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking bytes v1.10.1
[INFO] [stderr]     Checking itoa v1.0.15
[INFO] [stderr]     Checking either v1.15.0
[INFO] [stderr]     Checking cpufeatures v0.2.17
[INFO] [stderr]     Checking cfg-if v1.0.1
[INFO] [stderr]     Checking base64 v0.21.7
[INFO] [stderr]     Checking httpdate v1.0.3
[INFO] [stderr]     Checking mime v0.3.17
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]     Checking itertools v0.11.0
[INFO] [stderr]     Checking http v1.3.1
[INFO] [stderr]     Checking headers-core v0.3.0
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking block-buffer v0.10.4
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking sha1 v0.10.6
[INFO] [stderr]     Checking headers-accept-encoding v1.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: enum `SemiLevel` is never used
[INFO] [stdout]   --> src/util/quality_value.rs:46:14
[INFO] [stdout]    |
[INFO] [stdout] 46 |     pub enum SemiLevel {}
[INFO] [stdout]    |              ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.55s
[INFO] running `Command { std: "docker" "inspect" "838b8447f573e9414351d25790fa26e9f0a3f2889acd1b1e147b9274f68eca30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "838b8447f573e9414351d25790fa26e9f0a3f2889acd1b1e147b9274f68eca30", kill_on_drop: false }`
[INFO] [stdout] 838b8447f573e9414351d25790fa26e9f0a3f2889acd1b1e147b9274f68eca30