[INFO] cloning repository https://github.com/shelbyd/flock
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/shelbyd/flock" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshelbyd%2Fflock", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshelbyd%2Fflock'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 72c67243466f48aa55e5561e458c970576666eda
[INFO] checking shelbyd/flock/72c67243466f48aa55e5561e458c970576666eda against master#642c19bfc3a5c1de985bf5d0cc8207ac9d22708a for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshelbyd%2Fflock" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/shelbyd/flock
[INFO] removed 0 missing tests
[INFO] finished tweaking git repo https://github.com/shelbyd/flock
[INFO] tweaked toml for git repo https://github.com/shelbyd/flock written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/shelbyd/flock on toolchain 642c19bfc3a5c1de985bf5d0cc8207ac9d22708a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/shelbyd/flock 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" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded stderrlog v0.6.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 909bb418299d4f015be489893ac5ffe6940208f975ad2c09a8e36eda99ed85bb
[INFO] running `Command { std: "docker" "start" "-a" "909bb418299d4f015be489893ac5ffe6940208f975ad2c09a8e36eda99ed85bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "909bb418299d4f015be489893ac5ffe6940208f975ad2c09a8e36eda99ed85bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "909bb418299d4f015be489893ac5ffe6940208f975ad2c09a8e36eda99ed85bb", kill_on_drop: false }`
[INFO] [stdout] 909bb418299d4f015be489893ac5ffe6940208f975ad2c09a8e36eda99ed85bb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9a4cc588e81680f27bdce1c293f40ab9f89b6e45b32e2e93fa3de00b3e96dac2
[INFO] running `Command { std: "docker" "start" "-a" "9a4cc588e81680f27bdce1c293f40ab9f89b6e45b32e2e93fa3de00b3e96dac2", kill_on_drop: false }`
[INFO] [stderr]     Checking futures-sink v0.3.30
[INFO] [stderr]     Checking unicode-width v0.1.13
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]     Checking parking_lot_core v0.9.10
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling syn v2.0.66
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking chrono v0.4.38
[INFO] [stderr]     Checking is-terminal v0.4.12
[INFO] [stderr]     Checking log v0.4.21
[INFO] [stderr]     Checking colored v2.1.0
[INFO] [stderr]     Checking futures-channel v0.3.30
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking parking_lot v0.12.3
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking stderrlog v0.6.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]    Compiling tokio-macros v2.3.0
[INFO] [stderr]    Compiling async-trait v0.1.80
[INFO] [stderr]     Checking tokio v1.38.0
[INFO] [stderr]     Checking structopt v0.3.26
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking futures-executor v0.3.30
[INFO] [stderr]     Checking futures v0.3.30
[INFO] [stderr]     Checking flock v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant `Message` is never constructed
[INFO] [stdout]   --> src/event.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub(crate) enum Event {
[INFO] [stdout]    |                 ----- variant in this enum
[INFO] [stdout] 36 |     Message(Message),
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `context` is never read
[INFO] [stdout]   --> src/remote.rs:52:13
[INFO] [stdout]    |
[INFO] [stdout] 52 |     Spawn { context: ThreadCtx },
[INFO] [stdout]    |     -----   ^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Message` is never constructed
[INFO] [stdout]   --> src/event.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub(crate) enum Event {
[INFO] [stdout]    |                 ----- variant in this enum
[INFO] [stdout] 36 |     Message(Message),
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `context` is never read
[INFO] [stdout]   --> src/remote.rs:52:13
[INFO] [stdout]    |
[INFO] [stdout] 52 |     Spawn { context: ThreadCtx },
[INFO] [stdout]    |     -----   ^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.13s
[INFO] running `Command { std: "docker" "inspect" "9a4cc588e81680f27bdce1c293f40ab9f89b6e45b32e2e93fa3de00b3e96dac2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a4cc588e81680f27bdce1c293f40ab9f89b6e45b32e2e93fa3de00b3e96dac2", kill_on_drop: false }`
[INFO] [stdout] 9a4cc588e81680f27bdce1c293f40ab9f89b6e45b32e2e93fa3de00b3e96dac2