[INFO] fetching crate rustun 0.3.7...
[INFO] checking rustun-0.3.7 against master#936f2600b6c903b04387f74ed5cbce88bb06d243 for pr-91141
[INFO] extracting crate rustun 0.3.7 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate rustun 0.3.7 on toolchain 936f2600b6c903b04387f74ed5cbce88bb06d243
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rustun 0.3.7
[INFO] finished tweaking crates.io crate rustun 0.3.7
[INFO] tweaked toml for crates.io crate rustun 0.3.7 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate rustun 0.3.7 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a7e0e0020df65e1977bbfe9ac8a17e825fc6e90e37a64605a63ec73716daa353
[INFO] running `Command { std: "docker" "start" "-a" "a7e0e0020df65e1977bbfe9ac8a17e825fc6e90e37a64605a63ec73716daa353", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a7e0e0020df65e1977bbfe9ac8a17e825fc6e90e37a64605a63ec73716daa353", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7e0e0020df65e1977bbfe9ac8a17e825fc6e90e37a64605a63ec73716daa353", kill_on_drop: false }`
[INFO] [stdout] a7e0e0020df65e1977bbfe9ac8a17e825fc6e90e37a64605a63ec73716daa353
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aa985fde83505d75d6193dd4ab9b9af173f7bb3dc0dc886e74ac045ee87b9748
[INFO] running `Command { std: "docker" "start" "-a" "aa985fde83505d75d6193dd4ab9b9af173f7bb3dc0dc886e74ac045ee87b9748", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]    Compiling proc-macro2 v1.0.21
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.40
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling build_const v0.2.1
[INFO] [stderr]     Checking splay_tree v0.2.10
[INFO] [stderr]     Checking nbchan v0.1.3
[INFO] [stderr]     Checking futures v0.1.29
[INFO] [stderr]     Checking sha1 v0.2.0
[INFO] [stderr]     Checking md5 v0.6.1
[INFO] [stderr]     Checking factory v0.1.2
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]    Compiling crc v1.8.1
[INFO] [stderr]     Checking hmac-sha1 v0.1.3
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.35
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking fibers v0.1.13
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking fibers_timeout_queue v0.1.0
[INFO] [stderr]     Checking fibers_global v0.1.2
[INFO] [stderr]    Compiling trackable_derive v0.1.3
[INFO] [stderr]     Checking trackable v0.2.23
[INFO] [stderr]     Checking bytecodec v0.4.13
[INFO] [stderr]     Checking fibers_transport v0.1.3
[INFO] [stderr]     Checking stun_codec v0.1.12
[INFO] [stderr]     Checking rustun v0.3.7 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `current_rto`
[INFO] [stdout]    --> src/transport/udp.rs:401:5
[INFO] [stdout]     |
[INFO] [stdout] 401 |     current_rto: Duration,
[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 is never read: `current_rto`
[INFO] [stdout]    --> src/transport/udp.rs:401:5
[INFO] [stdout]     |
[INFO] [stdout] 401 |     current_rto: Duration,
[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 [unoptimized + debuginfo] target(s) in 21.46s
[INFO] running `Command { std: "docker" "inspect" "aa985fde83505d75d6193dd4ab9b9af173f7bb3dc0dc886e74ac045ee87b9748", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa985fde83505d75d6193dd4ab9b9af173f7bb3dc0dc886e74ac045ee87b9748", kill_on_drop: false }`
[INFO] [stdout] aa985fde83505d75d6193dd4ab9b9af173f7bb3dc0dc886e74ac045ee87b9748