[INFO] fetching crate moshudp 0.1.4...
[INFO] checking moshudp-0.1.4 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate moshudp 0.1.4 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate moshudp 0.1.4 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 moshudp 0.1.4
[INFO] finished tweaking crates.io crate moshudp 0.1.4
[INFO] tweaked toml for crates.io crate moshudp 0.1.4 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate crates.io crate moshudp 0.1.4 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded argh_shared v0.1.7
[INFO] [stderr]   Downloaded argh v0.1.7
[INFO] [stderr]   Downloaded argh_derive v0.1.7
[INFO] [stderr]   Downloaded chacha20 v0.8.1
[INFO] [stderr]   Downloaded chacha20poly1305 v0.9.0
[INFO] [stderr]   Downloaded libc v0.2.123
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] dea7e17f0c29de5af969c1b7662fc1af7ef495531ff5140e0b7f4720a0558589
[INFO] running `Command { std: "docker" "start" "-a" "dea7e17f0c29de5af969c1b7662fc1af7ef495531ff5140e0b7f4720a0558589", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dea7e17f0c29de5af969c1b7662fc1af7ef495531ff5140e0b7f4720a0558589", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dea7e17f0c29de5af969c1b7662fc1af7ef495531ff5140e0b7f4720a0558589", kill_on_drop: false }`
[INFO] [stdout] dea7e17f0c29de5af969c1b7662fc1af7ef495531ff5140e0b7f4720a0558589
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 9b08ea8e828d8b371adb547b348274b1ab92f3364941baaf81e6c63aa1f93193
[INFO] running `Command { std: "docker" "start" "-a" "9b08ea8e828d8b371adb547b348274b1ab92f3364941baaf81e6c63aa1f93193", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.37
[INFO] [stderr]    Compiling syn v1.0.91
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling libc v0.2.123
[INFO] [stderr]     Checking cpufeatures v0.2.2
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling unicode-segmentation v1.9.0
[INFO] [stderr]     Checking subtle v2.4.1
[INFO] [stderr]     Checking zeroize v1.4.3
[INFO] [stderr]    Compiling argh_shared v0.1.7
[INFO] [stderr]    Compiling anyhow v1.0.56
[INFO] [stderr]    Compiling generic-array v0.14.5
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking nix v0.23.1
[INFO] [stderr]     Checking getrandom v0.2.6
[INFO] [stderr]     Checking universal-hash v0.4.1
[INFO] [stderr]     Checking cipher v0.3.0
[INFO] [stderr]     Checking aead v0.4.3
[INFO] [stderr]     Checking poly1305 v0.7.2
[INFO] [stderr]     Checking chacha20 v0.8.1
[INFO] [stderr]     Checking chacha20poly1305 v0.9.0
[INFO] [stderr]    Compiling gumdrop_derive v0.8.1
[INFO] [stderr]    Compiling argh_derive v0.1.7
[INFO] [stderr]     Checking argh v0.1.7
[INFO] [stderr]     Checking gumdrop v0.8.1
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking moshudp v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/server.rs:167:35
[INFO] [stdout]     |
[INFO] [stdout] 167 |                         Ok(sz) => (&buf[..sz]),
[INFO] [stdout]     |                                   ^          ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 167 -                         Ok(sz) => (&buf[..sz]),
[INFO] [stdout] 167 +                         Ok(sz) => &buf[..sz],
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/server.rs:167:35
[INFO] [stdout]     |
[INFO] [stdout] 167 |                         Ok(sz) => (&buf[..sz]),
[INFO] [stdout]     |                                   ^          ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 167 -                         Ok(sz) => (&buf[..sz]),
[INFO] [stdout] 167 +                         Ok(sz) => &buf[..sz],
[INFO] [stdout]     |
[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 17.31s
[INFO] running `Command { std: "docker" "inspect" "9b08ea8e828d8b371adb547b348274b1ab92f3364941baaf81e6c63aa1f93193", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b08ea8e828d8b371adb547b348274b1ab92f3364941baaf81e6c63aa1f93193", kill_on_drop: false }`
[INFO] [stdout] 9b08ea8e828d8b371adb547b348274b1ab92f3364941baaf81e6c63aa1f93193
[INFO] checking moshudp-0.1.4 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate moshudp 0.1.4 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate moshudp 0.1.4 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 moshudp 0.1.4
[INFO] finished tweaking crates.io crate moshudp 0.1.4
[INFO] tweaked toml for crates.io crate moshudp 0.1.4 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate crates.io crate moshudp 0.1.4 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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 9c2801708d1c87154599696d2c58e0648089a24fbb73713ad3f7d1c3eec67e61
[INFO] running `Command { std: "docker" "start" "-a" "9c2801708d1c87154599696d2c58e0648089a24fbb73713ad3f7d1c3eec67e61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9c2801708d1c87154599696d2c58e0648089a24fbb73713ad3f7d1c3eec67e61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c2801708d1c87154599696d2c58e0648089a24fbb73713ad3f7d1c3eec67e61", kill_on_drop: false }`
[INFO] [stdout] 9c2801708d1c87154599696d2c58e0648089a24fbb73713ad3f7d1c3eec67e61
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 5aab3fd0ad0a62557bb8af6e86cc56e759dceeeb54226d030553d7589a54ef46
[INFO] running `Command { std: "docker" "start" "-a" "5aab3fd0ad0a62557bb8af6e86cc56e759dceeeb54226d030553d7589a54ef46", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.37
[INFO] [stderr]    Compiling syn v1.0.91
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling libc v0.2.123
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling unicode-segmentation v1.9.0
[INFO] [stderr]     Checking cpufeatures v0.2.2
[INFO] [stderr]     Checking subtle v2.4.1
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling anyhow v1.0.56
[INFO] [stderr]     Checking zeroize v1.4.3
[INFO] [stderr]    Compiling generic-array v0.14.5
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling argh_shared v0.1.7
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking nix v0.23.1
[INFO] [stderr]     Checking getrandom v0.2.6
[INFO] [stderr]     Checking universal-hash v0.4.1
[INFO] [stderr]     Checking cipher v0.3.0
[INFO] [stderr]     Checking aead v0.4.3
[INFO] [stderr]     Checking poly1305 v0.7.2
[INFO] [stderr]     Checking chacha20 v0.8.1
[INFO] [stderr]     Checking chacha20poly1305 v0.9.0
[INFO] [stderr]    Compiling gumdrop_derive v0.8.1
[INFO] [stderr]    Compiling argh_derive v0.1.7
[INFO] [stderr]     Checking argh v0.1.7
[INFO] [stderr]     Checking gumdrop v0.8.1
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking moshudp v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/server.rs:167:35
[INFO] [stdout]     |
[INFO] [stdout] 167 |                         Ok(sz) => (&buf[..sz]),
[INFO] [stdout]     |                                   ^          ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 167 -                         Ok(sz) => (&buf[..sz]),
[INFO] [stdout] 167 +                         Ok(sz) => &buf[..sz],
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/server.rs:167:35
[INFO] [stdout]     |
[INFO] [stdout] 167 |                         Ok(sz) => (&buf[..sz]),
[INFO] [stdout]     |                                   ^          ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 167 -                         Ok(sz) => (&buf[..sz]),
[INFO] [stdout] 167 +                         Ok(sz) => &buf[..sz],
[INFO] [stdout]     |
[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 18.42s
[INFO] running `Command { std: "docker" "inspect" "5aab3fd0ad0a62557bb8af6e86cc56e759dceeeb54226d030553d7589a54ef46", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5aab3fd0ad0a62557bb8af6e86cc56e759dceeeb54226d030553d7589a54ef46", kill_on_drop: false }`
[INFO] [stdout] 5aab3fd0ad0a62557bb8af6e86cc56e759dceeeb54226d030553d7589a54ef46