[INFO] cloning repository https://github.com/dexgs/user_sites
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dexgs/user_sites" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdexgs%2Fuser_sites", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdexgs%2Fuser_sites'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cb7111707791ecb41414536548f7ed9d83d18ed9
[INFO] checking dexgs/user_sites against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdexgs%2Fuser_sites" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dexgs/user_sites 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/dexgs/user_sites
[INFO] finished tweaking git repo https://github.com/dexgs/user_sites
[INFO] tweaked toml for git repo https://github.com/dexgs/user_sites written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/dexgs/user_sites 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-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] a9354e015b5bc070e3bcdb59003346d15fe86133a17be8e583f15f33996b8e61
[INFO] running `Command { std: "docker" "start" "-a" "a9354e015b5bc070e3bcdb59003346d15fe86133a17be8e583f15f33996b8e61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a9354e015b5bc070e3bcdb59003346d15fe86133a17be8e583f15f33996b8e61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9354e015b5bc070e3bcdb59003346d15fe86133a17be8e583f15f33996b8e61", kill_on_drop: false }`
[INFO] [stdout] a9354e015b5bc070e3bcdb59003346d15fe86133a17be8e583f15f33996b8e61
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 42842bd0aa15b461af6e7430ca3f2a3059e53d98b11cc25ed8dd654a1e4690a1
[INFO] running `Command { std: "docker" "start" "-a" "42842bd0aa15b461af6e7430ca3f2a3059e53d98b11cc25ed8dd654a1e4690a1", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling libc v0.2.120
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling anyhow v1.0.56
[INFO] [stderr]     Checking urlencoding v2.1.0
[INFO] [stderr]     Checking httpdate v1.0.2
[INFO] [stderr]     Checking micro_http_server v0.0.5 (/opt/rustwide/workdir/micro-http-server)
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking user_sites v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `urlencoding` is imported redundantly
[INFO] [stdout]   --> src/main.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | use urlencoding;
[INFO] [stdout]    |     ^^^^^^^^^^^ the item `urlencoding` 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 `urlencoding` is imported redundantly
[INFO] [stdout]   --> src/main.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | use urlencoding;
[INFO] [stdout]    |     ^^^^^^^^^^^ the item `urlencoding` 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 4.38s
[INFO] running `Command { std: "docker" "inspect" "42842bd0aa15b461af6e7430ca3f2a3059e53d98b11cc25ed8dd654a1e4690a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "42842bd0aa15b461af6e7430ca3f2a3059e53d98b11cc25ed8dd654a1e4690a1", kill_on_drop: false }`
[INFO] [stdout] 42842bd0aa15b461af6e7430ca3f2a3059e53d98b11cc25ed8dd654a1e4690a1
[INFO] checking dexgs/user_sites against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdexgs%2Fuser_sites" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dexgs/user_sites 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/dexgs/user_sites
[INFO] finished tweaking git repo https://github.com/dexgs/user_sites
[INFO] tweaked toml for git repo https://github.com/dexgs/user_sites written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/dexgs/user_sites 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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 273447ae4dc32745ba8c0078f5824b58f576010f49e74699afc469f9d5e97eef
[INFO] running `Command { std: "docker" "start" "-a" "273447ae4dc32745ba8c0078f5824b58f576010f49e74699afc469f9d5e97eef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "273447ae4dc32745ba8c0078f5824b58f576010f49e74699afc469f9d5e97eef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "273447ae4dc32745ba8c0078f5824b58f576010f49e74699afc469f9d5e97eef", kill_on_drop: false }`
[INFO] [stdout] 273447ae4dc32745ba8c0078f5824b58f576010f49e74699afc469f9d5e97eef
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 3572d71a9ee669870a429459375c7000b6cc16fbca22b74afe768045fba040de
[INFO] running `Command { std: "docker" "start" "-a" "3572d71a9ee669870a429459375c7000b6cc16fbca22b74afe768045fba040de", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling libc v0.2.120
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling anyhow v1.0.56
[INFO] [stderr]     Checking urlencoding v2.1.0
[INFO] [stderr]     Checking httpdate v1.0.2
[INFO] [stderr]     Checking micro_http_server v0.0.5 (/opt/rustwide/workdir/micro-http-server)
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking user_sites v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `urlencoding` is imported redundantly
[INFO] [stdout]   --> src/main.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | use urlencoding;
[INFO] [stdout]    |     ^^^^^^^^^^^ the item `urlencoding` 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 `urlencoding` is imported redundantly
[INFO] [stdout]   --> src/main.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | use urlencoding;
[INFO] [stdout]    |     ^^^^^^^^^^^ the item `urlencoding` 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 4.30s
[INFO] running `Command { std: "docker" "inspect" "3572d71a9ee669870a429459375c7000b6cc16fbca22b74afe768045fba040de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3572d71a9ee669870a429459375c7000b6cc16fbca22b74afe768045fba040de", kill_on_drop: false }`
[INFO] [stdout] 3572d71a9ee669870a429459375c7000b6cc16fbca22b74afe768045fba040de