[INFO] cloning repository https://github.com/nicoburniske/poem_repro
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nicoburniske/poem_repro" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnicoburniske%2Fpoem_repro", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnicoburniske%2Fpoem_repro'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bdb1606e2a02d40b7435d3f2e2013934ee7375f1
[INFO] checking nicoburniske/poem_repro against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnicoburniske%2Fpoem_repro" "/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/nicoburniske/poem_repro 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/nicoburniske/poem_repro
[INFO] finished tweaking git repo https://github.com/nicoburniske/poem_repro
[INFO] tweaked toml for git repo https://github.com/nicoburniske/poem_repro written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/nicoburniske/poem_repro 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 rfc7239 v0.1.0
[INFO] [stderr]   Downloaded winnow v0.5.24
[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] b0249eebabf9cafa097f343418c1e1f201ceff84853047a81ea2872f55af490c
[INFO] running `Command { std: "docker" "start" "-a" "b0249eebabf9cafa097f343418c1e1f201ceff84853047a81ea2872f55af490c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b0249eebabf9cafa097f343418c1e1f201ceff84853047a81ea2872f55af490c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0249eebabf9cafa097f343418c1e1f201ceff84853047a81ea2872f55af490c", kill_on_drop: false }`
[INFO] [stdout] b0249eebabf9cafa097f343418c1e1f201ceff84853047a81ea2872f55af490c
[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] 466a8af8ff2b04470b5f87e69debe8296db9090109a0d17301c4a6af3c25e5e3
[INFO] running `Command { std: "docker" "start" "-a" "466a8af8ff2b04470b5f87e69debe8296db9090109a0d17301c4a6af3c25e5e3", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.70
[INFO] [stderr]    Compiling libc v0.2.150
[INFO] [stderr]     Checking itoa v1.0.9
[INFO] [stderr]    Compiling futures-core v0.3.29
[INFO] [stderr]    Compiling futures-util v0.3.29
[INFO] [stderr]     Checking futures-sink v0.3.29
[INFO] [stderr]     Checking unicode-bidi v0.3.13
[INFO] [stderr]    Compiling serde v1.0.193
[INFO] [stderr]     Checking tracing-core v0.1.32
[INFO] [stderr]    Compiling thiserror v1.0.50
[INFO] [stderr]     Checking cpufeatures v0.2.11
[INFO] [stderr]    Compiling indexmap v2.1.0
[INFO] [stderr]    Compiling uncased v0.9.9
[INFO] [stderr]    Compiling winnow v0.5.24
[INFO] [stderr]    Compiling futures-channel v0.3.29
[INFO] [stderr]     Checking aho-corasick v1.1.2
[INFO] [stderr]     Checking sha1 v0.10.6
[INFO] [stderr]     Checking try-lock v0.2.4
[INFO] [stderr]     Checking http v0.2.11
[INFO] [stderr]    Compiling serde_json v1.0.108
[INFO] [stderr]     Checking smallvec v1.11.2
[INFO] [stderr]     Checking data-encoding v2.5.0
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]    Compiling async-trait v0.1.74
[INFO] [stderr]     Checking ryu v1.0.15
[INFO] [stderr]     Checking log v0.4.20
[INFO] [stderr]     Checking idna v0.5.0
[INFO] [stderr]     Checking regex-syntax v0.8.2
[INFO] [stderr]     Checking want v0.3.1
[INFO] [stderr]     Checking base64 v0.21.5
[INFO] [stderr]     Checking wildmatch v2.1.1
[INFO] [stderr]     Checking rfc7239 v0.1.0
[INFO] [stderr]     Checking url v2.5.0
[INFO] [stderr]     Checking headers-core v0.2.0
[INFO] [stderr]     Checking http-body v0.4.5
[INFO] [stderr]     Checking headers v0.3.9
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling syn v2.0.39
[INFO] [stderr]    Compiling toml_edit v0.20.7
[INFO] [stderr]     Checking socket2 v0.5.5
[INFO] [stderr]     Checking getrandom v0.2.11
[INFO] [stderr]     Checking mio v0.8.9
[INFO] [stderr]     Checking parking_lot_core v0.9.9
[INFO] [stderr]     Checking socket2 v0.4.10
[INFO] [stderr]     Checking nix v0.27.1
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking regex-automata v0.4.3
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling proc-macro-crate v2.0.0
[INFO] [stderr]     Checking regex v1.10.2
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.27
[INFO] [stderr]    Compiling futures-macro v0.3.29
[INFO] [stderr]    Compiling thiserror-impl v1.0.50
[INFO] [stderr]    Compiling serde_derive v1.0.193
[INFO] [stderr]    Compiling poem-derive v1.3.59
[INFO] [stderr]     Checking tokio v1.34.0
[INFO] [stderr]     Checking tungstenite v0.20.1
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking tokio-util v0.7.10
[INFO] [stderr]     Checking tokio-tungstenite v0.20.1
[INFO] [stderr]     Checking h2 v0.3.22
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]     Checking hyper v0.14.27
[INFO] [stderr]     Checking poem v1.3.59
[INFO] [stderr]     Checking poem_websocket v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 34.78s
[INFO] running `Command { std: "docker" "inspect" "466a8af8ff2b04470b5f87e69debe8296db9090109a0d17301c4a6af3c25e5e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "466a8af8ff2b04470b5f87e69debe8296db9090109a0d17301c4a6af3c25e5e3", kill_on_drop: false }`
[INFO] [stdout] 466a8af8ff2b04470b5f87e69debe8296db9090109a0d17301c4a6af3c25e5e3