[INFO] cloning repository https://github.com/rthomas/http-header-echo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rthomas/http-header-echo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frthomas%2Fhttp-header-echo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frthomas%2Fhttp-header-echo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6a1a06969553181f3f95dc944b137cd771f434a1
[INFO] checking rthomas/http-header-echo against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frthomas%2Fhttp-header-echo" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rthomas/http-header-echo 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/rthomas/http-header-echo
[INFO] finished tweaking git repo https://github.com/rthomas/http-header-echo
[INFO] tweaked toml for git repo https://github.com/rthomas/http-header-echo written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/rthomas/http-header-echo 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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tokio v1.30.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] b481734d825833d11fbc0a78fff8724c087eb54193d72757d12a640f4e87add8
[INFO] running `Command { std: "docker" "start" "-a" "b481734d825833d11fbc0a78fff8724c087eb54193d72757d12a640f4e87add8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b481734d825833d11fbc0a78fff8724c087eb54193d72757d12a640f4e87add8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b481734d825833d11fbc0a78fff8724c087eb54193d72757d12a640f4e87add8", kill_on_drop: false }`
[INFO] [stdout] b481734d825833d11fbc0a78fff8724c087eb54193d72757d12a640f4e87add8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] a52ce29ee5c0c96c18011a59fee51187cbc3b37b0fcc1892fd796a4b1246a771
[INFO] running `Command { std: "docker" "start" "-a" "a52ce29ee5c0c96c18011a59fee51187cbc3b37b0fcc1892fd796a4b1246a771", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling proc-macro2 v1.0.66
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling unicode-ident v1.0.11
[INFO] [stderr]    Compiling futures-core v0.3.28
[INFO] [stderr]     Checking pin-project-lite v0.2.12
[INFO] [stderr]     Checking bytes v1.4.0
[INFO] [stderr]     Checking once_cell v1.18.0
[INFO] [stderr]    Compiling futures-task v0.3.28
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]     Checking tracing-core v0.1.31
[INFO] [stderr]     Checking itoa v1.0.9
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling slab v0.4.8
[INFO] [stderr]     Checking futures-sink v0.3.28
[INFO] [stderr]     Checking http v0.2.9
[INFO] [stderr]     Checking tracing v0.1.37
[INFO] [stderr]     Checking hashbrown v0.12.3
[INFO] [stderr]    Compiling futures-channel v0.3.28
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]    Compiling httparse v1.8.0
[INFO] [stderr]     Checking try-lock v0.2.4
[INFO] [stderr]     Checking want v0.3.1
[INFO] [stderr]    Compiling quote v1.0.32
[INFO] [stderr]     Checking socket2 v0.5.3
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]    Compiling syn v2.0.28
[INFO] [stderr]     Checking mio v0.8.8
[INFO] [stderr]     Checking socket2 v0.4.9
[INFO] [stderr]     Checking http-body v0.4.5
[INFO] [stderr]     Checking tower-service v0.3.2
[INFO] [stderr]     Checking httpdate v1.0.2
[INFO] [stderr]    Compiling tokio-macros v2.1.0
[INFO] [stderr]     Checking tokio v1.30.0
[INFO] [stderr]     Checking tokio-util v0.7.8
[INFO] [stderr]     Checking h2 v0.3.20
[INFO] [stderr]     Checking hyper v0.14.27
[INFO] [stderr]     Checking http_echo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 22.52s
[INFO] running `Command { std: "docker" "inspect" "a52ce29ee5c0c96c18011a59fee51187cbc3b37b0fcc1892fd796a4b1246a771", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a52ce29ee5c0c96c18011a59fee51187cbc3b37b0fcc1892fd796a4b1246a771", kill_on_drop: false }`
[INFO] [stdout] a52ce29ee5c0c96c18011a59fee51187cbc3b37b0fcc1892fd796a4b1246a771
[INFO] checking rthomas/http-header-echo against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frthomas%2Fhttp-header-echo" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rthomas/http-header-echo 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/rthomas/http-header-echo
[INFO] finished tweaking git repo https://github.com/rthomas/http-header-echo
[INFO] tweaked toml for git repo https://github.com/rthomas/http-header-echo written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/rthomas/http-header-echo 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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] a9c1478251dc29a2c697ab097755ef206620e228916d84ef8d1fc34b8f29da7d
[INFO] running `Command { std: "docker" "start" "-a" "a9c1478251dc29a2c697ab097755ef206620e228916d84ef8d1fc34b8f29da7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a9c1478251dc29a2c697ab097755ef206620e228916d84ef8d1fc34b8f29da7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9c1478251dc29a2c697ab097755ef206620e228916d84ef8d1fc34b8f29da7d", kill_on_drop: false }`
[INFO] [stdout] a9c1478251dc29a2c697ab097755ef206620e228916d84ef8d1fc34b8f29da7d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 9c22943c92d071a43bef16660c3a20476578b99431cb7c471dd10e6af8e3f411
[INFO] running `Command { std: "docker" "start" "-a" "9c22943c92d071a43bef16660c3a20476578b99431cb7c471dd10e6af8e3f411", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling proc-macro2 v1.0.66
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling unicode-ident v1.0.11
[INFO] [stderr]     Checking pin-project-lite v0.2.12
[INFO] [stderr]    Compiling futures-core v0.3.28
[INFO] [stderr]     Checking bytes v1.4.0
[INFO] [stderr]    Compiling futures-task v0.3.28
[INFO] [stderr]     Checking once_cell v1.18.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]     Checking tracing-core v0.1.31
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking itoa v1.0.9
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling slab v0.4.8
[INFO] [stderr]     Checking futures-sink v0.3.28
[INFO] [stderr]     Checking hashbrown v0.12.3
[INFO] [stderr]    Compiling httparse v1.8.0
[INFO] [stderr]    Compiling futures-channel v0.3.28
[INFO] [stderr]     Checking http v0.2.9
[INFO] [stderr]     Checking try-lock v0.2.4
[INFO] [stderr]     Checking want v0.3.1
[INFO] [stderr]     Checking tracing v0.1.37
[INFO] [stderr]     Checking tower-service v0.3.2
[INFO] [stderr]     Checking httpdate v1.0.2
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]    Compiling quote v1.0.32
[INFO] [stderr]     Checking socket2 v0.5.3
[INFO] [stderr]     Checking mio v0.8.8
[INFO] [stderr]     Checking socket2 v0.4.9
[INFO] [stderr]    Compiling syn v2.0.28
[INFO] [stderr]     Checking http-body v0.4.5
[INFO] [stderr]    Compiling tokio-macros v2.1.0
[INFO] [stderr]     Checking tokio v1.30.0
[INFO] [stderr]     Checking tokio-util v0.7.8
[INFO] [stderr]     Checking h2 v0.3.20
[INFO] [stderr]     Checking hyper v0.14.27
[INFO] [stderr]     Checking http_echo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 21.38s
[INFO] running `Command { std: "docker" "inspect" "9c22943c92d071a43bef16660c3a20476578b99431cb7c471dd10e6af8e3f411", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c22943c92d071a43bef16660c3a20476578b99431cb7c471dd10e6af8e3f411", kill_on_drop: false }`
[INFO] [stdout] 9c22943c92d071a43bef16660c3a20476578b99431cb7c471dd10e6af8e3f411