[INFO] fetching crate ssh-muxcontrol 0.1.0...
[INFO] building ssh-muxcontrol-0.1.0 against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] extracting crate ssh-muxcontrol 0.1.0 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate ssh-muxcontrol 0.1.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate ssh-muxcontrol 0.1.0
[INFO] tweaked toml for crates.io crate ssh-muxcontrol 0.1.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate ssh-muxcontrol 0.1.0 on toolchain c7f6aa2869acdbf014d094c6e427e554e160b6db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate ssh-muxcontrol 0.1.0 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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "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 tokio-macros v1.5.0
[INFO] [stderr]   Downloaded tokio-pipe v0.2.1
[INFO] [stderr]   Downloaded proc-macro2 v1.0.30
[INFO] [stderr]   Downloaded sendfd v0.4.0
[INFO] [stderr]   Downloaded pin-project-lite v0.2.7
[INFO] [stderr]   Downloaded bytes v1.1.0
[INFO] [stderr]   Downloaded miow v0.3.7
[INFO] [stderr]   Downloaded memchr v2.4.1
[INFO] [stderr]   Downloaded log v0.4.14
[INFO] [stderr]   Downloaded mio v0.7.14
[INFO] [stderr]   Downloaded quote v1.0.10
[INFO] [stderr]   Downloaded syn v1.0.80
[INFO] [stderr]   Downloaded ntapi v0.3.6
[INFO] [stderr]   Downloaded autocfg v1.0.1
[INFO] [stderr]   Downloaded unicode-xid v0.2.2
[INFO] [stderr]   Downloaded tokio v1.12.0
[INFO] [stderr]   Downloaded libc v0.2.104
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 990d3fa0f757c1b9297746f3443c448b5c5fa154e70c6f6735b8b837247b4855
[INFO] running `Command { std: "docker" "start" "-a" "990d3fa0f757c1b9297746f3443c448b5c5fa154e70c6f6735b8b837247b4855", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "990d3fa0f757c1b9297746f3443c448b5c5fa154e70c6f6735b8b837247b4855", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "990d3fa0f757c1b9297746f3443c448b5c5fa154e70c6f6735b8b837247b4855", kill_on_drop: false }`
[INFO] [stdout] 990d3fa0f757c1b9297746f3443c448b5c5fa154e70c6f6735b8b837247b4855
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b5b9cad65cfeb26365c6f98cda947d4c1d6ed73094fc36e01945e3aefec84ced
[INFO] running `Command { std: "docker" "start" "-a" "b5b9cad65cfeb26365c6f98cda947d4c1d6ed73094fc36e01945e3aefec84ced", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.30
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.80
[INFO] [stderr]    Compiling libc v0.2.104
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling pin-project-lite v0.2.7
[INFO] [stderr]    Compiling bytes v1.1.0
[INFO] [stderr]    Compiling tokio v1.12.0
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling mio v0.7.14
[INFO] [stderr]    Compiling tokio-macros v1.5.0
[INFO] [stderr]    Compiling tokio-pipe v0.2.1
[INFO] [stderr]    Compiling sendfd v0.4.0
[INFO] [stderr]    Compiling ssh-muxcontrol v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `MuxCmdMessage` is never constructed
[INFO] [stdout]   --> src/commands/mod.rs:39:12
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub struct MuxCmdMessage {
[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 `ssh_pid` is never read
[INFO] [stdout]   --> src/commands/check_alive.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub struct MuxRespCheckAlive {
[INFO] [stdout]    |            ----------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 30 |     ssh_pid: u32,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `MuxRespCheckAlive` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.90s
[INFO] running `Command { std: "docker" "inspect" "b5b9cad65cfeb26365c6f98cda947d4c1d6ed73094fc36e01945e3aefec84ced", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b5b9cad65cfeb26365c6f98cda947d4c1d6ed73094fc36e01945e3aefec84ced", kill_on_drop: false }`
[INFO] [stdout] b5b9cad65cfeb26365c6f98cda947d4c1d6ed73094fc36e01945e3aefec84ced
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ef32ae5d5093c67cfd7eb84dfe030b082a2b31c405816815b87306da60a75415
[INFO] running `Command { std: "docker" "start" "-a" "ef32ae5d5093c67cfd7eb84dfe030b082a2b31c405816815b87306da60a75415", kill_on_drop: false }`
[INFO] [stdout] warning: struct `MuxCmdMessage` is never constructed
[INFO] [stdout]   --> src/commands/mod.rs:39:12
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub struct MuxCmdMessage {
[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 `ssh_pid` is never read
[INFO] [stdout]   --> src/commands/check_alive.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub struct MuxRespCheckAlive {
[INFO] [stdout]    |            ----------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 30 |     ssh_pid: u32,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `MuxRespCheckAlive` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling ssh-muxcontrol v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `MuxCmdMessage` is never constructed
[INFO] [stdout]   --> src/commands/mod.rs:39:12
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub struct MuxCmdMessage {
[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 `ssh_pid` is never read
[INFO] [stdout]   --> src/commands/check_alive.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub struct MuxRespCheckAlive {
[INFO] [stdout]    |            ----------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 30 |     ssh_pid: u32,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `MuxRespCheckAlive` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.19s
[INFO] running `Command { std: "docker" "inspect" "ef32ae5d5093c67cfd7eb84dfe030b082a2b31c405816815b87306da60a75415", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef32ae5d5093c67cfd7eb84dfe030b082a2b31c405816815b87306da60a75415", kill_on_drop: false }`
[INFO] [stdout] ef32ae5d5093c67cfd7eb84dfe030b082a2b31c405816815b87306da60a75415
