[INFO] fetching crate net2 0.2.39...
[INFO] checking net2-0.2.39 against master#c2f2db79ca3024f68d22b45aa22b570775c2c4ad for pr-124157
[INFO] extracting crate net2 0.2.39 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate net2 0.2.39 on toolchain c2f2db79ca3024f68d22b45aa22b570775c2c4ad
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate net2 0.2.39
[INFO] finished tweaking crates.io crate net2 0.2.39
[INFO] tweaked toml for crates.io crate net2 0.2.39 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 6 packages to latest compatible versions
[INFO] [stderr]       Adding cfg-if v0.1.10 (latest: v1.0.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7fe1b3e99e932b1b4d731a2d5d6f4332f25a88eef4563c35b632aa4ff539df8e
[INFO] running `Command { std: "docker" "start" "-a" "7fe1b3e99e932b1b4d731a2d5d6f4332f25a88eef4563c35b632aa4ff539df8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7fe1b3e99e932b1b4d731a2d5d6f4332f25a88eef4563c35b632aa4ff539df8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7fe1b3e99e932b1b4d731a2d5d6f4332f25a88eef4563c35b632aa4ff539df8e", kill_on_drop: false }`
[INFO] [stdout] 7fe1b3e99e932b1b4d731a2d5d6f4332f25a88eef4563c35b632aa4ff539df8e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e77976a7ce8ca541fc344eff98327a50fc81afee10dd915eefc71f90eaacf74b
[INFO] running `Command { std: "docker" "start" "-a" "e77976a7ce8ca541fc344eff98327a50fc81afee10dd915eefc71f90eaacf74b", kill_on_drop: false }`
[INFO] [stderr]     Checking net2 v0.2.39 (/opt/rustwide/workdir)
[INFO] [stdout] error: trait `Zero` is never used
[INFO] [stdout]   --> src/utils.rs:40:11
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub trait Zero {
[INFO] [stdout]    |           ^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:42:23
[INFO] [stdout]    |
[INFO] [stdout] 42 | #![deny(missing_docs, warnings)]
[INFO] [stdout]    |                       ^^^^^^^^
[INFO] [stdout]    = note: `#[deny(dead_code)]` implied by `#[deny(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: trait `Zero` is never used
[INFO] [stdout]   --> src/utils.rs:40:11
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub trait Zero {
[INFO] [stdout]    |           ^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:42:23
[INFO] [stdout]    |
[INFO] [stdout] 42 | #![deny(missing_docs, warnings)]
[INFO] [stdout]    |                       ^^^^^^^^
[INFO] [stdout]    = note: `#[deny(dead_code)]` implied by `#[deny(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `net2` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `net2` (lib test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "e77976a7ce8ca541fc344eff98327a50fc81afee10dd915eefc71f90eaacf74b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e77976a7ce8ca541fc344eff98327a50fc81afee10dd915eefc71f90eaacf74b", kill_on_drop: false }`
[INFO] [stdout] e77976a7ce8ca541fc344eff98327a50fc81afee10dd915eefc71f90eaacf74b
[INFO] checking net2-0.2.39 against try#9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88 for pr-124157
[INFO] extracting crate net2 0.2.39 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate net2 0.2.39 on toolchain 9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate net2 0.2.39
[INFO] finished tweaking crates.io crate net2 0.2.39
[INFO] tweaked toml for crates.io crate net2 0.2.39 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 6 packages to latest compatible versions
[INFO] [stderr]       Adding cfg-if v0.1.10 (latest: v1.0.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 15f74ea83b43a23f38bea9f703878bd4513bce49e24bc92f168074a4f6c98e03
[INFO] running `Command { std: "docker" "start" "-a" "15f74ea83b43a23f38bea9f703878bd4513bce49e24bc92f168074a4f6c98e03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "15f74ea83b43a23f38bea9f703878bd4513bce49e24bc92f168074a4f6c98e03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15f74ea83b43a23f38bea9f703878bd4513bce49e24bc92f168074a4f6c98e03", kill_on_drop: false }`
[INFO] [stdout] 15f74ea83b43a23f38bea9f703878bd4513bce49e24bc92f168074a4f6c98e03
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 44cf0a540c7a97039e4e00cdbf0f2ff812ec4e685744b5e1262a77daa3ace772
[INFO] running `Command { std: "docker" "start" "-a" "44cf0a540c7a97039e4e00cdbf0f2ff812ec4e685744b5e1262a77daa3ace772", kill_on_drop: false }`
[INFO] [stderr]     Checking net2 v0.2.39 (/opt/rustwide/workdir)
[INFO] [stdout] error: trait `Zero` is never used
[INFO] [stdout]   --> src/utils.rs:40:11
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub trait Zero {
[INFO] [stdout]    |           ^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:42:23
[INFO] [stdout]    |
[INFO] [stdout] 42 | #![deny(missing_docs, warnings)]
[INFO] [stdout]    |                       ^^^^^^^^
[INFO] [stdout]    = note: `#[deny(dead_code)]` implied by `#[deny(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: trait `Zero` is never used
[INFO] [stdout]   --> src/utils.rs:40:11
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub trait Zero {
[INFO] [stdout]    |           ^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:42:23
[INFO] [stdout]    |
[INFO] [stdout] 42 | #![deny(missing_docs, warnings)]
[INFO] [stdout]    |                       ^^^^^^^^
[INFO] [stdout]    = note: `#[deny(dead_code)]` implied by `#[deny(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `net2` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `net2` (lib test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "44cf0a540c7a97039e4e00cdbf0f2ff812ec4e685744b5e1262a77daa3ace772", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44cf0a540c7a97039e4e00cdbf0f2ff812ec4e685744b5e1262a77daa3ace772", kill_on_drop: false }`
[INFO] [stdout] 44cf0a540c7a97039e4e00cdbf0f2ff812ec4e685744b5e1262a77daa3ace772
