[INFO] fetching crate mqttrust 0.6.0...
[INFO] testing mqttrust-0.6.0 against try#b83b707f97d809763b7861afa7638871f3339a33 for pr-145838-1
[INFO] extracting crate mqttrust 0.6.0 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate mqttrust 0.6.0
[INFO] finished tweaking crates.io crate mqttrust 0.6.0
[INFO] tweaked toml for crates.io crate mqttrust 0.6.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mqttrust 0.6.0 on toolchain b83b707f97d809763b7861afa7638871f3339a33
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 28 packages to latest compatible versions
[INFO] [stderr]       Adding defmt v0.3.100 (available: v1.0.1)
[INFO] [stderr]       Adding heapless v0.7.17 (available: v0.9.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 97a96eb399f2af11df0a36e8612fba1d8e0c00b04e2d1d8cef1370db0ad522ad
[INFO] running `Command { std: "docker" "start" "-a" "97a96eb399f2af11df0a36e8612fba1d8e0c00b04e2d1d8cef1370db0ad522ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "97a96eb399f2af11df0a36e8612fba1d8e0c00b04e2d1d8cef1370db0ad522ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97a96eb399f2af11df0a36e8612fba1d8e0c00b04e2d1d8cef1370db0ad522ad", kill_on_drop: false }`
[INFO] [stdout] 97a96eb399f2af11df0a36e8612fba1d8e0c00b04e2d1d8cef1370db0ad522ad
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3b6c93c1361d2a03cf052a74b60f3fa483084c7faca0aa768d4820b18dc23a1e
[INFO] running `Command { std: "docker" "start" "-a" "3b6c93c1361d2a03cf052a74b60f3fa483084c7faca0aa768d4820b18dc23a1e", kill_on_drop: false }`
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling hash32 v0.2.1
[INFO] [stderr]    Compiling heapless v0.7.17
[INFO] [stderr]    Compiling mqttrust v0.6.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `NoneError` is never constructed
[INFO] [stdout]    --> src/fmt.rs:221:12
[INFO] [stdout]     |
[INFO] [stdout] 221 | pub struct NoneError;
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Try` is never used
[INFO] [stdout]    --> src/fmt.rs:223:11
[INFO] [stdout]     |
[INFO] [stdout] 223 | pub trait Try {
[INFO] [stdout]     |           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.25s
[INFO] running `Command { std: "docker" "inspect" "3b6c93c1361d2a03cf052a74b60f3fa483084c7faca0aa768d4820b18dc23a1e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b6c93c1361d2a03cf052a74b60f3fa483084c7faca0aa768d4820b18dc23a1e", kill_on_drop: false }`
[INFO] [stdout] 3b6c93c1361d2a03cf052a74b60f3fa483084c7faca0aa768d4820b18dc23a1e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 15d5e321bc8da61082d4a6b59f7a119f097142bd66bd7b1751b1996be224d25a
[INFO] running `Command { std: "docker" "start" "-a" "15d5e321bc8da61082d4a6b59f7a119f097142bd66bd7b1751b1996be224d25a", kill_on_drop: false }`
[INFO] [stderr]    Compiling mqttrust v0.6.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `NoneError` is never constructed
[INFO] [stdout]    --> src/fmt.rs:221:12
[INFO] [stdout]     |
[INFO] [stdout] 221 | pub struct NoneError;
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Try` is never used
[INFO] [stdout]    --> src/fmt.rs:223:11
[INFO] [stdout]     |
[INFO] [stdout] 223 | pub trait Try {
[INFO] [stdout]     |           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `NoneError` is never constructed
[INFO] [stdout]    --> src/fmt.rs:221:12
[INFO] [stdout]     |
[INFO] [stdout] 221 | pub struct NoneError;
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Try` is never used
[INFO] [stdout]    --> src/fmt.rs:223:11
[INFO] [stdout]     |
[INFO] [stdout] 223 | pub trait Try {
[INFO] [stdout]     |           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.50s
[INFO] running `Command { std: "docker" "inspect" "15d5e321bc8da61082d4a6b59f7a119f097142bd66bd7b1751b1996be224d25a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15d5e321bc8da61082d4a6b59f7a119f097142bd66bd7b1751b1996be224d25a", kill_on_drop: false }`
[INFO] [stdout] 15d5e321bc8da61082d4a6b59f7a119f097142bd66bd7b1751b1996be224d25a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0de2f39204a41ec1c1a655409a39ec00b13f40b2b5d8e46ffedc5d8d84d33975
[INFO] running `Command { std: "docker" "start" "-a" "0de2f39204a41ec1c1a655409a39ec00b13f40b2b5d8e46ffedc5d8d84d33975", kill_on_drop: false }`
[INFO] [stderr] warning: struct `NoneError` is never constructed
[INFO] [stderr]    --> src/fmt.rs:221:12
[INFO] [stderr]     |
[INFO] [stderr] 221 | pub struct NoneError;
[INFO] [stderr]     |            ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait `Try` is never used
[INFO] [stderr]    --> src/fmt.rs:223:11
[INFO] [stderr]     |
[INFO] [stderr] 223 | pub trait Try {
[INFO] [stderr]     |           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `mqttrust` (lib) generated 2 warnings
[INFO] [stderr] warning: `mqttrust` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/mqttrust-0a310f598a967ccf)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test encoding::v4::utils::test::pid_add_sub ... 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 mqttrust
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/encoding/v4/encoder.rs - encoding::v4::encoder::encode_slice (line 5) ... ok
[INFO] [stdout] test src/encoding/v4/packet.rs - encoding::v4::packet::Packet (line 12) ... ok
[INFO] [stdout] test src/encoding/v4/utils.rs - encoding::v4::utils::Pid (line 47) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.26s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "0de2f39204a41ec1c1a655409a39ec00b13f40b2b5d8e46ffedc5d8d84d33975", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0de2f39204a41ec1c1a655409a39ec00b13f40b2b5d8e46ffedc5d8d84d33975", kill_on_drop: false }`
[INFO] [stdout] 0de2f39204a41ec1c1a655409a39ec00b13f40b2b5d8e46ffedc5d8d84d33975