[INFO] cloning repository https://github.com/kromych/tcprelayr
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kromych/tcprelayr" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkromych%2Ftcprelayr", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkromych%2Ftcprelayr'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8c46c94803c89dcd6c63086b96d5707d18541083
[INFO] checking kromych/tcprelayr against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkromych%2Ftcprelayr" "/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/kromych/tcprelayr 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/kromych/tcprelayr
[INFO] finished tweaking git repo https://github.com/kromych/tcprelayr
[INFO] tweaked toml for git repo https://github.com/kromych/tcprelayr written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/kromych/tcprelayr 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-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] 4ad193054ed2ab73f5215cc064cfcf5b5e8795d26c3e9e96941f419c8f23a889
[INFO] running `Command { std: "docker" "start" "-a" "4ad193054ed2ab73f5215cc064cfcf5b5e8795d26c3e9e96941f419c8f23a889", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4ad193054ed2ab73f5215cc064cfcf5b5e8795d26c3e9e96941f419c8f23a889", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ad193054ed2ab73f5215cc064cfcf5b5e8795d26c3e9e96941f419c8f23a889", kill_on_drop: false }`
[INFO] [stdout] 4ad193054ed2ab73f5215cc064cfcf5b5e8795d26c3e9e96941f419c8f23a889
[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] 747395dfa02c28082b939e9b7a462e4e302208d09ccafc2b263beefe5b3e301a
[INFO] running `Command { std: "docker" "start" "-a" "747395dfa02c28082b939e9b7a462e4e302208d09ccafc2b263beefe5b3e301a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling winapi v0.3.9
[INFO] [stderr]     Checking mio v0.7.11
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]     Checking tcprelay v0.1.0 (/opt/rustwide/workdir/tcprelay)
[INFO] [stderr]     Checking relay v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `tcprelay` is imported redundantly
[INFO] [stdout]  --> src/bin/relay.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use tcprelay;
[INFO] [stdout]   |     ^^^^^^^^ the item `tcprelay` 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 `tcprelay` is imported redundantly
[INFO] [stdout]  --> src/bin/relay.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use tcprelay;
[INFO] [stdout]   |     ^^^^^^^^ the item `tcprelay` 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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.40s
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "747395dfa02c28082b939e9b7a462e4e302208d09ccafc2b263beefe5b3e301a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "747395dfa02c28082b939e9b7a462e4e302208d09ccafc2b263beefe5b3e301a", kill_on_drop: false }`
[INFO] [stdout] 747395dfa02c28082b939e9b7a462e4e302208d09ccafc2b263beefe5b3e301a
[INFO] checking kromych/tcprelayr against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkromych%2Ftcprelayr" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kromych/tcprelayr 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/kromych/tcprelayr
[INFO] finished tweaking git repo https://github.com/kromych/tcprelayr
[INFO] tweaked toml for git repo https://github.com/kromych/tcprelayr written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/kromych/tcprelayr 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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 2f4758698cfb4b3200b69dd4b09486da88253a911724322f84c4cbe57f7e0a5f
[INFO] running `Command { std: "docker" "start" "-a" "2f4758698cfb4b3200b69dd4b09486da88253a911724322f84c4cbe57f7e0a5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2f4758698cfb4b3200b69dd4b09486da88253a911724322f84c4cbe57f7e0a5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f4758698cfb4b3200b69dd4b09486da88253a911724322f84c4cbe57f7e0a5f", kill_on_drop: false }`
[INFO] [stdout] 2f4758698cfb4b3200b69dd4b09486da88253a911724322f84c4cbe57f7e0a5f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 291996fc8710d94f4df49143d9b424abf5c4b587e189dd63a66514e85c49fc58
[INFO] running `Command { std: "docker" "start" "-a" "291996fc8710d94f4df49143d9b424abf5c4b587e189dd63a66514e85c49fc58", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling winapi v0.3.9
[INFO] [stderr]     Checking mio v0.7.11
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]     Checking tcprelay v0.1.0 (/opt/rustwide/workdir/tcprelay)
[INFO] [stderr]     Checking relay v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `tcprelay` is imported redundantly
[INFO] [stdout]  --> src/bin/relay.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use tcprelay;
[INFO] [stdout]   |     ^^^^^^^^ the item `tcprelay` 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 `tcprelay` is imported redundantly
[INFO] [stdout]  --> src/bin/relay.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use tcprelay;
[INFO] [stdout]   |     ^^^^^^^^ the item `tcprelay` 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 2.11s
[INFO] running `Command { std: "docker" "inspect" "291996fc8710d94f4df49143d9b424abf5c4b587e189dd63a66514e85c49fc58", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "291996fc8710d94f4df49143d9b424abf5c4b587e189dd63a66514e85c49fc58", kill_on_drop: false }`
[INFO] [stdout] 291996fc8710d94f4df49143d9b424abf5c4b587e189dd63a66514e85c49fc58