[INFO] cloning repository https://github.com/d-ones/rust_curl
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/d-ones/rust_curl" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fd-ones%2Frust_curl", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fd-ones%2Frust_curl'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d73e3b5c79cff8ef2341c4001d48b71c1904564c
[INFO] checking d-ones/rust_curl against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fd-ones%2Frust_curl" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/d-ones/rust_curl 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/d-ones/rust_curl
[INFO] finished tweaking git repo https://github.com/d-ones/rust_curl
[INFO] tweaked toml for git repo https://github.com/d-ones/rust_curl written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/d-ones/rust_curl 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 syn v2.0.42
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] a2731a17ff85a886b9c83a87daf459da8ececc1b606d18b673f0aba7714366ea
[INFO] running `Command { std: "docker" "start" "-a" "a2731a17ff85a886b9c83a87daf459da8ececc1b606d18b673f0aba7714366ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a2731a17ff85a886b9c83a87daf459da8ececc1b606d18b673f0aba7714366ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2731a17ff85a886b9c83a87daf459da8ececc1b606d18b673f0aba7714366ea", kill_on_drop: false }`
[INFO] [stdout] a2731a17ff85a886b9c83a87daf459da8ececc1b606d18b673f0aba7714366ea
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 312b6e926ffae44332e445f9024bcd82a6ecb74fee42d18b42eb75f853200a22
[INFO] running `Command { std: "docker" "start" "-a" "312b6e926ffae44332e445f9024bcd82a6ecb74fee42d18b42eb75f853200a22", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]    Compiling pkg-config v0.3.28
[INFO] [stderr]    Compiling proc-macro2 v1.0.71
[INFO] [stderr]     Checking futures-core v0.3.30
[INFO] [stderr]    Compiling openssl v0.10.62
[INFO] [stderr]     Checking tracing-core v0.1.32
[INFO] [stderr]     Checking http v0.2.11
[INFO] [stderr]     Checking equivalent v1.0.1
[INFO] [stderr]     Checking futures-sink v0.3.30
[INFO] [stderr]     Checking futures-io v0.3.30
[INFO] [stderr]     Checking socket2 v0.5.5
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking mio v0.8.10
[INFO] [stderr]     Checking hashbrown v0.14.3
[INFO] [stderr]     Checking futures-task v0.3.30
[INFO] [stderr]     Checking percent-encoding v2.3.1
[INFO] [stderr]    Compiling serde v1.0.193
[INFO] [stderr]     Checking try-lock v0.2.5
[INFO] [stderr]     Checking futures-channel v0.3.30
[INFO] [stderr]     Checking unicode-bidi v0.3.14
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking form_urlencoded v1.2.1
[INFO] [stderr]     Checking want v0.3.1
[INFO] [stderr]     Checking ryu v1.0.16
[INFO] [stderr]     Checking ipnet v2.9.0
[INFO] [stderr]     Checking base64 v0.21.5
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking idna v0.5.0
[INFO] [stderr]     Checking tokio v1.35.1
[INFO] [stderr]     Checking indexmap v2.1.0
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]     Checking http-body v0.4.6
[INFO] [stderr]    Compiling syn v2.0.42
[INFO] [stderr]     Checking url v2.5.0
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]    Compiling openssl-sys v0.9.98
[INFO] [stderr]    Compiling native-tls v0.2.11
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]    Compiling openssl-macros v0.1.1
[INFO] [stderr]     Checking tokio-util v0.7.10
[INFO] [stderr]     Checking h2 v0.3.22
[INFO] [stderr]     Checking hyper v0.14.28
[INFO] [stderr]     Checking tokio-native-tls v0.3.1
[INFO] [stderr]     Checking hyper-tls v0.5.0
[INFO] [stderr]     Checking reqwest v0.11.23
[INFO] [stderr]     Checking rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `String` is imported redundantly
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::string::String;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:144:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `String` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `String` is imported redundantly
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::string::String;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:144:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `String` is already defined here
[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 18.99s
[INFO] running `Command { std: "docker" "inspect" "312b6e926ffae44332e445f9024bcd82a6ecb74fee42d18b42eb75f853200a22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "312b6e926ffae44332e445f9024bcd82a6ecb74fee42d18b42eb75f853200a22", kill_on_drop: false }`
[INFO] [stdout] 312b6e926ffae44332e445f9024bcd82a6ecb74fee42d18b42eb75f853200a22
[INFO] checking d-ones/rust_curl against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fd-ones%2Frust_curl" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/d-ones/rust_curl 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/d-ones/rust_curl
[INFO] finished tweaking git repo https://github.com/d-ones/rust_curl
[INFO] tweaked toml for git repo https://github.com/d-ones/rust_curl written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/d-ones/rust_curl 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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] d64e09e06af8a544a05ce972fcfda1875dcf1ff30eb7150925ab8b1cd0543381
[INFO] running `Command { std: "docker" "start" "-a" "d64e09e06af8a544a05ce972fcfda1875dcf1ff30eb7150925ab8b1cd0543381", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d64e09e06af8a544a05ce972fcfda1875dcf1ff30eb7150925ab8b1cd0543381", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d64e09e06af8a544a05ce972fcfda1875dcf1ff30eb7150925ab8b1cd0543381", kill_on_drop: false }`
[INFO] [stdout] d64e09e06af8a544a05ce972fcfda1875dcf1ff30eb7150925ab8b1cd0543381
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 995bca8c5d724c5839a1e6e5a0ad129abcc843f9196a6d186e508eb974bdbde2
[INFO] running `Command { std: "docker" "start" "-a" "995bca8c5d724c5839a1e6e5a0ad129abcc843f9196a6d186e508eb974bdbde2", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]    Compiling pkg-config v0.3.28
[INFO] [stderr]    Compiling proc-macro2 v1.0.71
[INFO] [stderr]     Checking futures-core v0.3.30
[INFO] [stderr]    Compiling openssl v0.10.62
[INFO] [stderr]     Checking tracing-core v0.1.32
[INFO] [stderr]     Checking http v0.2.11
[INFO] [stderr]     Checking hashbrown v0.14.3
[INFO] [stderr]     Checking futures-io v0.3.30
[INFO] [stderr]     Checking futures-task v0.3.30
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking socket2 v0.5.5
[INFO] [stderr]     Checking mio v0.8.10
[INFO] [stderr]     Checking futures-sink v0.3.30
[INFO] [stderr]     Checking equivalent v1.0.1
[INFO] [stderr]     Checking try-lock v0.2.5
[INFO] [stderr]     Checking percent-encoding v2.3.1
[INFO] [stderr]    Compiling serde v1.0.193
[INFO] [stderr]     Checking futures-channel v0.3.30
[INFO] [stderr]     Checking unicode-bidi v0.3.14
[INFO] [stderr]     Checking want v0.3.1
[INFO] [stderr]     Checking ryu v1.0.16
[INFO] [stderr]     Checking form_urlencoded v1.2.1
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking base64 v0.21.5
[INFO] [stderr]     Checking ipnet v2.9.0
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking tokio v1.35.1
[INFO] [stderr]     Checking idna v0.5.0
[INFO] [stderr]     Checking indexmap v2.1.0
[INFO] [stderr]     Checking http-body v0.4.6
[INFO] [stderr]     Checking url v2.5.0
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling syn v2.0.42
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]    Compiling openssl-sys v0.9.98
[INFO] [stderr]    Compiling native-tls v0.2.11
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]    Compiling openssl-macros v0.1.1
[INFO] [stderr]     Checking tokio-util v0.7.10
[INFO] [stderr]     Checking h2 v0.3.22
[INFO] [stderr]     Checking hyper v0.14.28
[INFO] [stderr]     Checking tokio-native-tls v0.3.1
[INFO] [stderr]     Checking hyper-tls v0.5.0
[INFO] [stderr]     Checking reqwest v0.11.23
[INFO] [stderr]     Checking rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `String` is imported redundantly
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::string::String;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2/library/std/src/prelude/mod.rs:144:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `String` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `String` is imported redundantly
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::string::String;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2/library/std/src/prelude/mod.rs:144:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `String` is already defined here
[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 16.12s
[INFO] running `Command { std: "docker" "inspect" "995bca8c5d724c5839a1e6e5a0ad129abcc843f9196a6d186e508eb974bdbde2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "995bca8c5d724c5839a1e6e5a0ad129abcc843f9196a6d186e508eb974bdbde2", kill_on_drop: false }`
[INFO] [stdout] 995bca8c5d724c5839a1e6e5a0ad129abcc843f9196a6d186e508eb974bdbde2