[INFO] fetching crate lakka 0.1.0...
[INFO] testing lakka-0.1.0 against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210-1
[INFO] extracting crate lakka 0.1.0 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate lakka 0.1.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate lakka 0.1.0
[INFO] tweaked toml for crates.io crate lakka 0.1.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate lakka 0.1.0 on toolchain dec9417b8611e34e787a3e4c37686b5131f9e5c5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate lakka 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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4c73595b4044e0ab44f72c4b8b00e66446c89cdbba46fe7c3f741a82b4815a2d
[INFO] running `Command { std: "docker" "start" "-a" "4c73595b4044e0ab44f72c4b8b00e66446c89cdbba46fe7c3f741a82b4815a2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4c73595b4044e0ab44f72c4b8b00e66446c89cdbba46fe7c3f741a82b4815a2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c73595b4044e0ab44f72c4b8b00e66446c89cdbba46fe7c3f741a82b4815a2d", kill_on_drop: false }`
[INFO] [stdout] 4c73595b4044e0ab44f72c4b8b00e66446c89cdbba46fe7c3f741a82b4815a2d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a8011eb6900cbf266e09111a6ca67437d3627f0d058cc884c0c2eb4187bb3d61
[INFO] running `Command { std: "docker" "start" "-a" "a8011eb6900cbf266e09111a6ca67437d3627f0d058cc884c0c2eb4187bb3d61", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.4.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling libc v0.2.172
[INFO] [stderr]    Compiling futures-core v0.3.31
[INFO] [stderr]    Compiling pin-project-lite v0.2.16
[INFO] [stderr]    Compiling parking_lot_core v0.9.10
[INFO] [stderr]    Compiling futures-sink v0.3.31
[INFO] [stderr]    Compiling futures-task v0.3.31
[INFO] [stderr]    Compiling memchr v2.7.4
[INFO] [stderr]    Compiling futures-io v0.3.31
[INFO] [stderr]    Compiling smallvec v1.15.0
[INFO] [stderr]    Compiling bytes v1.10.1
[INFO] [stderr]    Compiling duration_helper v0.1.0
[INFO] [stderr]    Compiling futures-channel v0.3.31
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]    Compiling lock_api v0.4.12
[INFO] [stderr]    Compiling kanal v0.1.1
[INFO] [stderr]    Compiling mio v1.0.3
[INFO] [stderr]    Compiling socket2 v0.5.9
[INFO] [stderr]    Compiling signal-hook-registry v1.4.5
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling parking_lot v0.12.3
[INFO] [stderr]    Compiling syn v2.0.100
[INFO] [stderr]    Compiling lakka_core v0.1.0
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling tokio-macros v2.5.0
[INFO] [stderr]    Compiling lakka_macro v0.1.0
[INFO] [stderr]    Compiling tokio v1.44.2
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling futures-executor v0.3.31
[INFO] [stderr]    Compiling futures v0.3.31
[INFO] [stderr]    Compiling lakka v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 17.87s
[INFO] running `Command { std: "docker" "inspect" "a8011eb6900cbf266e09111a6ca67437d3627f0d058cc884c0c2eb4187bb3d61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a8011eb6900cbf266e09111a6ca67437d3627f0d058cc884c0c2eb4187bb3d61", kill_on_drop: false }`
[INFO] [stdout] a8011eb6900cbf266e09111a6ca67437d3627f0d058cc884c0c2eb4187bb3d61
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5e6a6b12447c32e3c73207c1f97847528d6d920ebacc6650a15505aeb56d7940
[INFO] running `Command { std: "docker" "start" "-a" "5e6a6b12447c32e3c73207c1f97847528d6d920ebacc6650a15505aeb56d7940", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling virtue v0.0.18
[INFO] [stderr]    Compiling unty v0.0.4
[INFO] [stderr]    Compiling bincode_derive v2.0.1
[INFO] [stderr]    Compiling bincode v2.0.1
[INFO] [stderr]    Compiling lakka v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> examples/enum.rs:8:11
[INFO] [stdout]   |
[INFO] [stdout] 8 |     Zuumo(u32),
[INFO] [stdout]   |     ----- ^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `State` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 8 -     Zuumo(u32),
[INFO] [stdout] 8 +     Zuumo(()),
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `msg` is never read
[INFO] [stdout]  --> examples/ping_message.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct EverySecond {
[INFO] [stdout]   |            ----------- field in this struct
[INFO] [stdout] 8 |     msg: String,
[INFO] [stdout]   |     ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `EverySecond` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]   --> examples/chat.rs:43:5
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub struct ChatUser {
[INFO] [stdout]    |            -------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 43 |     name: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 18.02s
[INFO] running `Command { std: "docker" "inspect" "5e6a6b12447c32e3c73207c1f97847528d6d920ebacc6650a15505aeb56d7940", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e6a6b12447c32e3c73207c1f97847528d6d920ebacc6650a15505aeb56d7940", kill_on_drop: false }`
[INFO] [stdout] 5e6a6b12447c32e3c73207c1f97847528d6d920ebacc6650a15505aeb56d7940
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 937c5b35d29c7b74935799f471e2d2eb7d0bd1ab62353ca925e222e984528add
[INFO] running `Command { std: "docker" "start" "-a" "937c5b35d29c7b74935799f471e2d2eb7d0bd1ab62353ca925e222e984528add", kill_on_drop: false }`
[INFO] [stderr] warning: field `msg` is never read
[INFO] [stderr]  --> examples/ping_message.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub struct EverySecond {
[INFO] [stderr]   |            ----------- field in this struct
[INFO] [stderr] 8 |     msg: String,
[INFO] [stderr]   |     ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `EverySecond` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field `name` is never read
[INFO] [stderr]   --> examples/chat.rs:43:5
[INFO] [stderr]    |
[INFO] [stderr] 40 | pub struct ChatUser {
[INFO] [stderr]    |            -------- field in this struct
[INFO] [stderr] ...
[INFO] [stderr] 43 |     name: String,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]  --> examples/enum.rs:8:11
[INFO] [stderr]   |
[INFO] [stderr] 8 |     Zuumo(u32),
[INFO] [stderr]   |     ----- ^^^
[INFO] [stderr]   |     |
[INFO] [stderr]   |     field in this variant
[INFO] [stderr]   |
[INFO] [stderr]   = note: `State` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stderr]   |
[INFO] [stderr] 8 -     Zuumo(u32),
[INFO] [stderr] 8 +     Zuumo(()),
[INFO] [stderr]   |
[INFO] [stderr] 
[INFO] [stderr] warning: `lakka` (example "ping_message") generated 1 warning
[INFO] [stderr] warning: `lakka` (example "chat") generated 1 warning
[INFO] [stderr] warning: `lakka` (example "enum") generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/lakka-7bab71d4147f9fb8)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test channels::interval_channel::test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests lakka
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "937c5b35d29c7b74935799f471e2d2eb7d0bd1ab62353ca925e222e984528add", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "937c5b35d29c7b74935799f471e2d2eb7d0bd1ab62353ca925e222e984528add", kill_on_drop: false }`
[INFO] [stdout] 937c5b35d29c7b74935799f471e2d2eb7d0bd1ab62353ca925e222e984528add