[INFO] fetching crate proxychain 0.0.0...
[INFO] checking proxychain-0.0.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate proxychain 0.0.0 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate proxychain 0.0.0 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 crates.io crate proxychain 0.0.0
[INFO] finished tweaking crates.io crate proxychain 0.0.0
[INFO] tweaked toml for crates.io crate proxychain 0.0.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate crates.io crate proxychain 0.0.0 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 async-trait v0.1.50
[INFO] [stderr]   Downloaded pretty_env_logger v0.3.1
[INFO] [stderr]   Downloaded trust-dns-resolver v0.20.3
[INFO] [stderr]   Downloaded trust-dns-proto v0.20.3
[INFO] [stderr]   Downloaded tokio v1.8.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 36b1938fbc450717472ad393d5152208b4aaab486916f4ca3a20a24b8c7968f0
[INFO] running `Command { std: "docker" "start" "-a" "36b1938fbc450717472ad393d5152208b4aaab486916f4ca3a20a24b8c7968f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "36b1938fbc450717472ad393d5152208b4aaab486916f4ca3a20a24b8c7968f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36b1938fbc450717472ad393d5152208b4aaab486916f4ca3a20a24b8c7968f0", kill_on_drop: false }`
[INFO] [stdout] 36b1938fbc450717472ad393d5152208b4aaab486916f4ca3a20a24b8c7968f0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] e29e452d3afaa376d588cb87e00fc4f7e22ba8ec8bc327540f9aeabe32dd5378
[INFO] running `Command { std: "docker" "start" "-a" "e29e452d3afaa376d588cb87e00fc4f7e22ba8ec8bc327540f9aeabe32dd5378", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.97
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling futures-core v0.3.15
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]    Compiling tokio v1.8.0
[INFO] [stderr]    Compiling futures-util v0.3.15
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]    Compiling futures-channel v0.3.15
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]    Compiling async-trait v0.1.50
[INFO] [stderr]     Checking match_cfg v0.1.0
[INFO] [stderr]     Checking data-encoding v2.3.2
[INFO] [stderr]     Checking ipnet v2.3.1
[INFO] [stderr]     Checking linked-hash-map v0.5.4
[INFO] [stderr]     Checking unicode-bidi v0.3.5
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]     Checking tinyvec v1.2.0
[INFO] [stderr]     Checking lru-cache v0.1.2
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking mio v0.7.13
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking hostname v0.3.1
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking unicode-normalization v0.1.19
[INFO] [stderr]     Checking resolv-conf v0.7.0
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking pretty_env_logger v0.3.1
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]    Compiling thiserror-impl v1.0.26
[INFO] [stderr]    Compiling enum-as-inner v0.3.3
[INFO] [stderr]     Checking thiserror v1.0.26
[INFO] [stderr]     Checking trust-dns-proto v0.20.3
[INFO] [stderr]     Checking trust-dns-resolver v0.20.3
[INFO] [stderr]     Checking proxychain v0.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `protocol`, `url`, `username`, and `password` are never read
[INFO] [stdout]   --> src/proxy.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct Proxy {
[INFO] [stdout]    |            ----- fields in this struct
[INFO] [stdout] 13 |     protocol: ProxyProtocol,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 14 |     url: String,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] ...
[INFO] [stdout] 17 |     username: Option<String>,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 18 |     password: Option<String>,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Proxy` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `protocol`, `url`, `username`, and `password` are never read
[INFO] [stdout]   --> src/proxy.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct Proxy {
[INFO] [stdout]    |            ----- fields in this struct
[INFO] [stdout] 13 |     protocol: ProxyProtocol,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 14 |     url: String,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] ...
[INFO] [stdout] 17 |     username: Option<String>,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 18 |     password: Option<String>,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Proxy` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` 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 11.62s
[INFO] running `Command { std: "docker" "inspect" "e29e452d3afaa376d588cb87e00fc4f7e22ba8ec8bc327540f9aeabe32dd5378", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e29e452d3afaa376d588cb87e00fc4f7e22ba8ec8bc327540f9aeabe32dd5378", kill_on_drop: false }`
[INFO] [stdout] e29e452d3afaa376d588cb87e00fc4f7e22ba8ec8bc327540f9aeabe32dd5378
[INFO] checking proxychain-0.0.0 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate proxychain 0.0.0 into /workspace/builds/worker-7-tc2/source
[INFO] validating manifest of crates.io crate proxychain 0.0.0 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 crates.io crate proxychain 0.0.0
[INFO] finished tweaking crates.io crate proxychain 0.0.0
[INFO] tweaked toml for crates.io crate proxychain 0.0.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate crates.io crate proxychain 0.0.0 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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 1aa503df4d0f03afa53e527e28c16613a2d4b7ed6c435be836acb99fbbe7b00f
[INFO] running `Command { std: "docker" "start" "-a" "1aa503df4d0f03afa53e527e28c16613a2d4b7ed6c435be836acb99fbbe7b00f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1aa503df4d0f03afa53e527e28c16613a2d4b7ed6c435be836acb99fbbe7b00f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1aa503df4d0f03afa53e527e28c16613a2d4b7ed6c435be836acb99fbbe7b00f", kill_on_drop: false }`
[INFO] [stdout] 1aa503df4d0f03afa53e527e28c16613a2d4b7ed6c435be836acb99fbbe7b00f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] c42f41ba48cc0df23115c0cbface717ec1f30307d09de9fe8cbab1235fcd4ac8
[INFO] running `Command { std: "docker" "start" "-a" "c42f41ba48cc0df23115c0cbface717ec1f30307d09de9fe8cbab1235fcd4ac8", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.97
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling futures-core v0.3.15
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling futures-channel v0.3.15
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]    Compiling futures-util v0.3.15
[INFO] [stderr]    Compiling tokio v1.8.0
[INFO] [stderr]    Compiling async-trait v0.1.50
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking match_cfg v0.1.0
[INFO] [stderr]     Checking data-encoding v2.3.2
[INFO] [stderr]     Checking linked-hash-map v0.5.4
[INFO] [stderr]     Checking ipnet v2.3.1
[INFO] [stderr]     Checking unicode-bidi v0.3.5
[INFO] [stderr]     Checking tinyvec v1.2.0
[INFO] [stderr]     Checking lru-cache v0.1.2
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking mio v0.7.13
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking hostname v0.3.1
[INFO] [stderr]     Checking resolv-conf v0.7.0
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking unicode-normalization v0.1.19
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking pretty_env_logger v0.3.1
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]    Compiling thiserror-impl v1.0.26
[INFO] [stderr]    Compiling enum-as-inner v0.3.3
[INFO] [stderr]     Checking thiserror v1.0.26
[INFO] [stderr]     Checking trust-dns-proto v0.20.3
[INFO] [stderr]     Checking trust-dns-resolver v0.20.3
[INFO] [stderr]     Checking proxychain v0.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `protocol`, `url`, `username`, and `password` are never read
[INFO] [stdout]   --> src/proxy.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct Proxy {
[INFO] [stdout]    |            ----- fields in this struct
[INFO] [stdout] 13 |     protocol: ProxyProtocol,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 14 |     url: String,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] ...
[INFO] [stdout] 17 |     username: Option<String>,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 18 |     password: Option<String>,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Proxy` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `protocol`, `url`, `username`, and `password` are never read
[INFO] [stdout]   --> src/proxy.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct Proxy {
[INFO] [stdout]    |            ----- fields in this struct
[INFO] [stdout] 13 |     protocol: ProxyProtocol,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 14 |     url: String,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] ...
[INFO] [stdout] 17 |     username: Option<String>,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 18 |     password: Option<String>,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Proxy` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.92s
[INFO] running `Command { std: "docker" "inspect" "c42f41ba48cc0df23115c0cbface717ec1f30307d09de9fe8cbab1235fcd4ac8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c42f41ba48cc0df23115c0cbface717ec1f30307d09de9fe8cbab1235fcd4ac8", kill_on_drop: false }`
[INFO] [stdout] c42f41ba48cc0df23115c0cbface717ec1f30307d09de9fe8cbab1235fcd4ac8