[INFO] cloning repository https://github.com/bazhenov/fast-estimate
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bazhenov/fast-estimate" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbazhenov%2Ffast-estimate", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbazhenov%2Ffast-estimate'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 44e0d9aae079d56c835bad691bf0f67a5ed8ca98
[INFO] checking bazhenov/fast-estimate against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbazhenov%2Ffast-estimate" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/bazhenov/fast-estimate on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/bazhenov/fast-estimate
[INFO] finished tweaking git repo https://github.com/bazhenov/fast-estimate
[INFO] tweaked toml for git repo https://github.com/bazhenov/fast-estimate written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/bazhenov/fast-estimate 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded atty v0.2.11
[INFO] [stderr]   Downloaded md5 v0.3.8
[INFO] [stderr]   Downloaded textwrap v0.10.0
[INFO] [stderr]   Downloaded clap v2.32.0
[INFO] [stderr]   Downloaded libc v0.2.43
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 136fec0ffafa3b714f13318c8edc3c4dbb7ef1170f1ee1995fb4d6152ef1c2d1
[INFO] running `Command { std: "docker" "start" "-a" "136fec0ffafa3b714f13318c8edc3c4dbb7ef1170f1ee1995fb4d6152ef1c2d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "136fec0ffafa3b714f13318c8edc3c4dbb7ef1170f1ee1995fb4d6152ef1c2d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "136fec0ffafa3b714f13318c8edc3c4dbb7ef1170f1ee1995fb4d6152ef1c2d1", kill_on_drop: false }`
[INFO] [stdout] 136fec0ffafa3b714f13318c8edc3c4dbb7ef1170f1ee1995fb4d6152ef1c2d1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ffcbfea94a8b552e183fcfe8bcf42e2a40c168632835ada09f4176bb3ac2ad82
[INFO] running `Command { std: "docker" "start" "-a" "ffcbfea94a8b552e183fcfe8bcf42e2a40c168632835ada09f4176bb3ac2ad82", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.43
[INFO] [stderr]     Checking textwrap v0.10.0
[INFO] [stderr]     Checking bitflags v1.0.4
[INFO] [stderr]     Checking strsim v0.7.0
[INFO] [stderr]     Checking md5 v0.3.8
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]     Checking est v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.51s
[INFO] running `Command { std: "docker" "inspect" "ffcbfea94a8b552e183fcfe8bcf42e2a40c168632835ada09f4176bb3ac2ad82", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ffcbfea94a8b552e183fcfe8bcf42e2a40c168632835ada09f4176bb3ac2ad82", kill_on_drop: false }`
[INFO] [stdout] ffcbfea94a8b552e183fcfe8bcf42e2a40c168632835ada09f4176bb3ac2ad82
[INFO] checking bazhenov/fast-estimate against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbazhenov%2Ffast-estimate" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/bazhenov/fast-estimate on toolchain 3a4bc97f6385a3aa300a4fd689b44350e54fd676
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/bazhenov/fast-estimate
[INFO] finished tweaking git repo https://github.com/bazhenov/fast-estimate
[INFO] tweaked toml for git repo https://github.com/bazhenov/fast-estimate written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/bazhenov/fast-estimate 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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c0dbd78c2160b5488b1e6a2fced68fc1c4e8441cc1b0ef216041e28b74fd8f1a
[INFO] running `Command { std: "docker" "start" "-a" "c0dbd78c2160b5488b1e6a2fced68fc1c4e8441cc1b0ef216041e28b74fd8f1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c0dbd78c2160b5488b1e6a2fced68fc1c4e8441cc1b0ef216041e28b74fd8f1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0dbd78c2160b5488b1e6a2fced68fc1c4e8441cc1b0ef216041e28b74fd8f1a", kill_on_drop: false }`
[INFO] [stdout] c0dbd78c2160b5488b1e6a2fced68fc1c4e8441cc1b0ef216041e28b74fd8f1a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cb18171118520be083065c642702c06f1e9cfcc6b16cb2529775132eba5e8228
[INFO] running `Command { std: "docker" "start" "-a" "cb18171118520be083065c642702c06f1e9cfcc6b16cb2529775132eba5e8228", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.43
[INFO] [stderr]     Checking textwrap v0.10.0
[INFO] [stderr]     Checking strsim v0.7.0
[INFO] [stderr]     Checking bitflags v1.0.4
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking md5 v0.3.8
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]     Checking est v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0284]: type annotations needed: cannot satisfy `_ -> _`
[INFO] [stdout]    --> src/stream_summary.rs:114:7
[INFO] [stdout]     |
[INFO] [stdout] 114 | /       if self.monitored_items.len() >= self.capacity {
[INFO] [stdout] 115 | |         // Replacing exisiting element
[INFO] [stdout] 116 | |         let min_bucket = *self.buckets.keys().min().expect("No element in visited items found");
[INFO] [stdout] ...   |
[INFO] [stdout] 141 | |         return 1;
[INFO] [stdout] 142 | |       }
[INFO] [stdout]     | |_______^ cannot satisfy `_ -> _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0284]: type annotations needed: cannot satisfy `_ -> _`
[INFO] [stdout]    --> src/stream_summary.rs:114:7
[INFO] [stdout]     |
[INFO] [stdout] 114 | /       if self.monitored_items.len() >= self.capacity {
[INFO] [stdout] 115 | |         // Replacing exisiting element
[INFO] [stdout] 116 | |         let min_bucket = *self.buckets.keys().min().expect("No element in visited items found");
[INFO] [stdout] ...   |
[INFO] [stdout] 141 | |         return 1;
[INFO] [stdout] 142 | |       }
[INFO] [stdout]     | |_______^ cannot satisfy `_ -> _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0284`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `est` (bin "est") due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0284`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `est` (bin "est" test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "cb18171118520be083065c642702c06f1e9cfcc6b16cb2529775132eba5e8228", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb18171118520be083065c642702c06f1e9cfcc6b16cb2529775132eba5e8228", kill_on_drop: false }`
[INFO] [stdout] cb18171118520be083065c642702c06f1e9cfcc6b16cb2529775132eba5e8228