[INFO] cloning repository https://github.com/tobiasegelund/headers-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tobiasegelund/headers-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftobiasegelund%2Fheaders-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftobiasegelund%2Fheaders-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 72bfb296924d52d21d5739998f7e7312ee693650
[INFO] checking tobiasegelund/headers-rs against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftobiasegelund%2Fheaders-rs" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tobiasegelund/headers-rs on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tobiasegelund/headers-rs
[INFO] finished tweaking git repo https://github.com/tobiasegelund/headers-rs
[INFO] tweaked toml for git repo https://github.com/tobiasegelund/headers-rs written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/tobiasegelund/headers-rs 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 25713aa8181671a89a2927838f9331c6bb080e0e10328eecad0afe29e6916cbc
[INFO] running `Command { std: "docker" "start" "-a" "25713aa8181671a89a2927838f9331c6bb080e0e10328eecad0afe29e6916cbc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "25713aa8181671a89a2927838f9331c6bb080e0e10328eecad0afe29e6916cbc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "25713aa8181671a89a2927838f9331c6bb080e0e10328eecad0afe29e6916cbc", kill_on_drop: false }`
[INFO] [stdout] 25713aa8181671a89a2927838f9331c6bb080e0e10328eecad0afe29e6916cbc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c83df1828023ccf3d71b54e9640ff3a5e122fdffaf87545dc784e268da9d0d2a
[INFO] running `Command { std: "docker" "start" "-a" "c83df1828023ccf3d71b54e9640ff3a5e122fdffaf87545dc784e268da9d0d2a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.150
[INFO] [stderr]    Compiling vcpkg v0.2.15
[INFO] [stderr]    Compiling futures-core v0.3.29
[INFO] [stderr]    Compiling futures-task v0.3.29
[INFO] [stderr]     Checking tracing-core v0.1.32
[INFO] [stderr]    Compiling futures-util v0.3.29
[INFO] [stderr]    Compiling openssl v0.10.59
[INFO] [stderr]     Checking http v0.2.9
[INFO] [stderr]    Compiling openssl-macros v0.1.1
[INFO] [stderr]    Compiling serde v1.0.192
[INFO] [stderr]    Compiling futures-channel v0.3.29
[INFO] [stderr]     Checking futures-sink v0.3.29
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking tokio-util v0.7.10
[INFO] [stderr]     Checking socket2 v0.4.10
[INFO] [stderr]     Checking http-body v0.4.5
[INFO] [stderr]    Compiling serde_json v1.0.108
[INFO] [stderr]     Checking httpdate v1.0.3
[INFO] [stderr]     Checking base64 v0.21.5
[INFO] [stderr]     Checking ipnet v2.9.0
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]     Checking h2 v0.3.21
[INFO] [stderr]    Compiling openssl-sys v0.9.95
[INFO] [stderr]    Compiling native-tls v0.2.11
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]     Checking hyper v0.14.27
[INFO] [stderr]     Checking tokio-native-tls v0.3.1
[INFO] [stderr]     Checking hyper-tls v0.5.0
[INFO] [stderr]     Checking reqwest v0.11.22
[INFO] [stderr]     Checking headers v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `reqwest` is imported redundantly
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use reqwest;
[INFO] [stdout]   |     ^^^^^^^ the item `reqwest` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `reqwest` is imported redundantly
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use reqwest;
[INFO] [stdout]   |     ^^^^^^^ the item `reqwest` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 24.67s
[INFO] running `Command { std: "docker" "inspect" "c83df1828023ccf3d71b54e9640ff3a5e122fdffaf87545dc784e268da9d0d2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c83df1828023ccf3d71b54e9640ff3a5e122fdffaf87545dc784e268da9d0d2a", kill_on_drop: false }`
[INFO] [stdout] c83df1828023ccf3d71b54e9640ff3a5e122fdffaf87545dc784e268da9d0d2a
[INFO] checking tobiasegelund/headers-rs against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftobiasegelund%2Fheaders-rs" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tobiasegelund/headers-rs on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tobiasegelund/headers-rs
[INFO] finished tweaking git repo https://github.com/tobiasegelund/headers-rs
[INFO] tweaked toml for git repo https://github.com/tobiasegelund/headers-rs written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/tobiasegelund/headers-rs 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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ed534cf94ee2cfb0a7134419ab70226465f2662e1b8e874f0b79dd0c72dd2688
[INFO] running `Command { std: "docker" "start" "-a" "ed534cf94ee2cfb0a7134419ab70226465f2662e1b8e874f0b79dd0c72dd2688", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ed534cf94ee2cfb0a7134419ab70226465f2662e1b8e874f0b79dd0c72dd2688", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed534cf94ee2cfb0a7134419ab70226465f2662e1b8e874f0b79dd0c72dd2688", kill_on_drop: false }`
[INFO] [stdout] ed534cf94ee2cfb0a7134419ab70226465f2662e1b8e874f0b79dd0c72dd2688
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4f15c4589463c04f1a9fde1367a83cec7da85c27eae8bba5b21475af37a719cb
[INFO] running `Command { std: "docker" "start" "-a" "4f15c4589463c04f1a9fde1367a83cec7da85c27eae8bba5b21475af37a719cb", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.150
[INFO] [stderr]    Compiling vcpkg v0.2.15
[INFO] [stderr]    Compiling futures-core v0.3.29
[INFO] [stderr]    Compiling futures-task v0.3.29
[INFO] [stderr]     Checking tracing-core v0.1.32
[INFO] [stderr]    Compiling openssl v0.10.59
[INFO] [stderr]    Compiling futures-util v0.3.29
[INFO] [stderr]     Checking http v0.2.9
[INFO] [stderr]    Compiling openssl-macros v0.1.1
[INFO] [stderr]     Checking futures-sink v0.3.29
[INFO] [stderr]    Compiling serde v1.0.192
[INFO] [stderr]    Compiling futures-channel v0.3.29
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking http-body v0.4.5
[INFO] [stderr]     Checking tokio-util v0.7.10
[INFO] [stderr]     Checking socket2 v0.4.10
[INFO] [stderr]    Compiling serde_json v1.0.108
[INFO] [stderr]     Checking httpdate v1.0.3
[INFO] [stderr]     Checking ipnet v2.9.0
[INFO] [stderr]     Checking base64 v0.21.5
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]     Checking h2 v0.3.21
[INFO] [stderr]    Compiling openssl-sys v0.9.95
[INFO] [stderr]    Compiling native-tls v0.2.11
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]     Checking hyper v0.14.27
[INFO] [stderr]     Checking tokio-native-tls v0.3.1
[INFO] [stderr]     Checking hyper-tls v0.5.0
[INFO] [stderr]     Checking reqwest v0.11.22
[INFO] [stderr]     Checking headers v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `reqwest` is imported redundantly
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use reqwest;
[INFO] [stdout]   |     ^^^^^^^ the item `reqwest` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `reqwest` is imported redundantly
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use reqwest;
[INFO] [stdout]   |     ^^^^^^^ the item `reqwest` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 21.25s
[INFO] running `Command { std: "docker" "inspect" "4f15c4589463c04f1a9fde1367a83cec7da85c27eae8bba5b21475af37a719cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f15c4589463c04f1a9fde1367a83cec7da85c27eae8bba5b21475af37a719cb", kill_on_drop: false }`
[INFO] [stdout] 4f15c4589463c04f1a9fde1367a83cec7da85c27eae8bba5b21475af37a719cb