[INFO] cloning repository https://github.com/DavidMikeSimon/air-remote-mediator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/DavidMikeSimon/air-remote-mediator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDavidMikeSimon%2Fair-remote-mediator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDavidMikeSimon%2Fair-remote-mediator'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f3cbb014da8f8bfaf753f8a1bdd92fd61a4412e5
[INFO] checking DavidMikeSimon/air-remote-mediator against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDavidMikeSimon%2Fair-remote-mediator" "/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/DavidMikeSimon/air-remote-mediator 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/DavidMikeSimon/air-remote-mediator
[INFO] finished tweaking git repo https://github.com/DavidMikeSimon/air-remote-mediator
[INFO] tweaked toml for git repo https://github.com/DavidMikeSimon/air-remote-mediator written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/DavidMikeSimon/air-remote-mediator 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_variant v0.1.2
[INFO] [stderr]   Downloaded rumqttc v0.23.0
[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] 940ec79194f4b6962fe79f48c842fd9de675e1870c53f2a89b496ef2dbbd22d4
[INFO] running `Command { std: "docker" "start" "-a" "940ec79194f4b6962fe79f48c842fd9de675e1870c53f2a89b496ef2dbbd22d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "940ec79194f4b6962fe79f48c842fd9de675e1870c53f2a89b496ef2dbbd22d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "940ec79194f4b6962fe79f48c842fd9de675e1870c53f2a89b496ef2dbbd22d4", kill_on_drop: false }`
[INFO] [stdout] 940ec79194f4b6962fe79f48c842fd9de675e1870c53f2a89b496ef2dbbd22d4
[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] 245ed4779b5d422d099e9b41a87f274ad42c613dc3eed0601fc054da03f4a21c
[INFO] running `Command { std: "docker" "start" "-a" "245ed4779b5d422d099e9b41a87f274ad42c613dc3eed0601fc054da03f4a21c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.70
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling libc v0.2.150
[INFO] [stderr]    Compiling lock_api v0.4.11
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]     Checking untrusted v0.9.0
[INFO] [stderr]    Compiling serde v1.0.193
[INFO] [stderr]    Compiling futures-core v0.3.29
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]     Checking pin-project-lite v0.2.13
[INFO] [stderr]    Compiling futures-task v0.3.29
[INFO] [stderr]    Compiling rustls v0.21.9
[INFO] [stderr]     Checking log v0.4.20
[INFO] [stderr]    Compiling futures-util v0.3.29
[INFO] [stderr]    Compiling thiserror v1.0.50
[INFO] [stderr]     Checking bytes v1.5.0
[INFO] [stderr]     Checking rustls-pemfile v1.0.4
[INFO] [stderr]     Checking futures-sink v0.3.29
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]     Checking openssl-probe v0.1.5
[INFO] [stderr]     Checking array-init v0.0.4
[INFO] [stderr]     Checking smallvec v0.6.14
[INFO] [stderr]     Checking itoa v1.0.9
[INFO] [stderr]     Checking ryu v1.0.15
[INFO] [stderr]     Checking rustls-native-certs v0.6.3
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]     Checking flume v0.11.0
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]    Compiling syn v2.0.39
[INFO] [stderr]     Checking getrandom v0.2.11
[INFO] [stderr]     Checking mio v0.8.10
[INFO] [stderr]     Checking socket2 v0.5.5
[INFO] [stderr]    Compiling ring v0.17.7
[INFO] [stderr]    Compiling serde_derive v1.0.193
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.50
[INFO] [stderr]     Checking tokio v1.34.0
[INFO] [stderr]     Checking sct v0.7.1
[INFO] [stderr]     Checking rustls-webpki v0.101.7
[INFO] [stderr]     Checking tokio-rustls v0.24.1
[INFO] [stderr]     Checking rumqttc v0.23.0
[INFO] [stderr]     Checking serde_json v1.0.108
[INFO] [stderr]     Checking serde_variant v0.1.2
[INFO] [stderr]     Checking serde-hex v0.1.0
[INFO] [stderr]     Checking air-remote-mediator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `data` is never read
[INFO] [stdout]   --> src/main.rs:46:9
[INFO] [stdout]    |
[INFO] [stdout] 44 |     AsciiKey {
[INFO] [stdout]    |     -------- field in this variant
[INFO] [stdout] 45 |         #[serde(with = "SerHex::<StrictCapPfx>")]
[INFO] [stdout] 46 |         data: u8,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[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: field `data` is never read
[INFO] [stdout]   --> src/main.rs:46:9
[INFO] [stdout]    |
[INFO] [stdout] 44 |     AsciiKey {
[INFO] [stdout]    |     -------- field in this variant
[INFO] [stdout] 45 |         #[serde(with = "SerHex::<StrictCapPfx>")]
[INFO] [stdout] 46 |         data: u8,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[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 22.90s
[INFO] running `Command { std: "docker" "inspect" "245ed4779b5d422d099e9b41a87f274ad42c613dc3eed0601fc054da03f4a21c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "245ed4779b5d422d099e9b41a87f274ad42c613dc3eed0601fc054da03f4a21c", kill_on_drop: false }`
[INFO] [stdout] 245ed4779b5d422d099e9b41a87f274ad42c613dc3eed0601fc054da03f4a21c
[INFO] checking DavidMikeSimon/air-remote-mediator against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDavidMikeSimon%2Fair-remote-mediator" "/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/DavidMikeSimon/air-remote-mediator 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/DavidMikeSimon/air-remote-mediator
[INFO] finished tweaking git repo https://github.com/DavidMikeSimon/air-remote-mediator
[INFO] tweaked toml for git repo https://github.com/DavidMikeSimon/air-remote-mediator written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/DavidMikeSimon/air-remote-mediator 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] 0e0169058c2234c2661fe24cf308a135b4bdc592fa33d3352e3c3257c45f63f1
[INFO] running `Command { std: "docker" "start" "-a" "0e0169058c2234c2661fe24cf308a135b4bdc592fa33d3352e3c3257c45f63f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0e0169058c2234c2661fe24cf308a135b4bdc592fa33d3352e3c3257c45f63f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e0169058c2234c2661fe24cf308a135b4bdc592fa33d3352e3c3257c45f63f1", kill_on_drop: false }`
[INFO] [stdout] 0e0169058c2234c2661fe24cf308a135b4bdc592fa33d3352e3c3257c45f63f1
[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] 1dad1dc4d394948ece493f876a7bf65aec55641e0bfbb309f514969f205a83aa
[INFO] running `Command { std: "docker" "start" "-a" "1dad1dc4d394948ece493f876a7bf65aec55641e0bfbb309f514969f205a83aa", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.70
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling libc v0.2.150
[INFO] [stderr]    Compiling lock_api v0.4.11
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]     Checking untrusted v0.9.0
[INFO] [stderr]    Compiling futures-core v0.3.29
[INFO] [stderr]    Compiling serde v1.0.193
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]    Compiling futures-task v0.3.29
[INFO] [stderr]     Checking pin-project-lite v0.2.13
[INFO] [stderr]    Compiling rustls v0.21.9
[INFO] [stderr]    Compiling thiserror v1.0.50
[INFO] [stderr]     Checking log v0.4.20
[INFO] [stderr]     Checking bytes v1.5.0
[INFO] [stderr]    Compiling futures-util v0.3.29
[INFO] [stderr]     Checking rustls-pemfile v1.0.4
[INFO] [stderr]     Checking openssl-probe v0.1.5
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]     Checking futures-sink v0.3.29
[INFO] [stderr]     Checking array-init v0.0.4
[INFO] [stderr]     Checking rustls-native-certs v0.6.3
[INFO] [stderr]     Checking smallvec v0.6.14
[INFO] [stderr]     Checking itoa v1.0.9
[INFO] [stderr]     Checking ryu v1.0.15
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]     Checking flume v0.11.0
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]     Checking getrandom v0.2.11
[INFO] [stderr]     Checking socket2 v0.5.5
[INFO] [stderr]     Checking mio v0.8.10
[INFO] [stderr]    Compiling syn v2.0.39
[INFO] [stderr]    Compiling ring v0.17.7
[INFO] [stderr]    Compiling serde_derive v1.0.193
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.50
[INFO] [stderr]     Checking tokio v1.34.0
[INFO] [stderr]     Checking sct v0.7.1
[INFO] [stderr]     Checking rustls-webpki v0.101.7
[INFO] [stderr]     Checking tokio-rustls v0.24.1
[INFO] [stderr]     Checking rumqttc v0.23.0
[INFO] [stderr]     Checking serde_variant v0.1.2
[INFO] [stderr]     Checking serde_json v1.0.108
[INFO] [stderr]     Checking serde-hex v0.1.0
[INFO] [stderr]     Checking air-remote-mediator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `data` is never read
[INFO] [stdout]   --> src/main.rs:46:9
[INFO] [stdout]    |
[INFO] [stdout] 44 |     AsciiKey {
[INFO] [stdout]    |     -------- field in this variant
[INFO] [stdout] 45 |         #[serde(with = "SerHex::<StrictCapPfx>")]
[INFO] [stdout] 46 |         data: u8,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[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: field `data` is never read
[INFO] [stdout]   --> src/main.rs:46:9
[INFO] [stdout]    |
[INFO] [stdout] 44 |     AsciiKey {
[INFO] [stdout]    |     -------- field in this variant
[INFO] [stdout] 45 |         #[serde(with = "SerHex::<StrictCapPfx>")]
[INFO] [stdout] 46 |         data: u8,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[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 21.85s
[INFO] running `Command { std: "docker" "inspect" "1dad1dc4d394948ece493f876a7bf65aec55641e0bfbb309f514969f205a83aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1dad1dc4d394948ece493f876a7bf65aec55641e0bfbb309f514969f205a83aa", kill_on_drop: false }`
[INFO] [stdout] 1dad1dc4d394948ece493f876a7bf65aec55641e0bfbb309f514969f205a83aa