[INFO] fetching crate sermatec-ess 0.2.3...
[INFO] checking sermatec-ess-0.2.3 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate sermatec-ess 0.2.3 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate sermatec-ess 0.2.3 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sermatec-ess 0.2.3
[INFO] finished tweaking crates.io crate sermatec-ess 0.2.3
[INFO] tweaked toml for crates.io crate sermatec-ess 0.2.3 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate crates.io crate sermatec-ess 0.2.3 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded darling_core v0.20.1
[INFO] [stderr]   Downloaded darling_macro v0.20.1
[INFO] [stderr]   Downloaded anstyle-parse v0.2.0
[INFO] [stderr]   Downloaded rustls-pemfile v1.0.2
[INFO] [stderr]   Downloaded serde_json v1.0.97
[INFO] [stderr]   Downloaded rumqttc v0.21.0
[INFO] [stderr]   Downloaded serde_with v3.0.0
[INFO] [stderr]   Downloaded darling v0.20.1
[INFO] [stderr]   Downloaded serde_with_macros v3.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8246077ae21f71a5e593340403e83f6c22432b383c80da4f3fa0a90f1cb75f5f
[INFO] running `Command { std: "docker" "start" "-a" "8246077ae21f71a5e593340403e83f6c22432b383c80da4f3fa0a90f1cb75f5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8246077ae21f71a5e593340403e83f6c22432b383c80da4f3fa0a90f1cb75f5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8246077ae21f71a5e593340403e83f6c22432b383c80da4f3fa0a90f1cb75f5f", kill_on_drop: false }`
[INFO] [stdout] 8246077ae21f71a5e593340403e83f6c22432b383c80da4f3fa0a90f1cb75f5f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 82c271de5806d4aeccd0f91d700296ffdace1711c051890bbd3fbee8ae941331
[INFO] running `Command { std: "docker" "start" "-a" "82c271de5806d4aeccd0f91d700296ffdace1711c051890bbd3fbee8ae941331", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]    Compiling futures-core v0.3.28
[INFO] [stderr]    Compiling io-lifetimes v1.0.11
[INFO] [stderr]     Checking untrusted v0.7.1
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking futures-sink v0.3.28
[INFO] [stderr]    Compiling rustix v0.37.20
[INFO] [stderr]     Checking linux-raw-sys v0.3.8
[INFO] [stderr]    Compiling syn v2.0.18
[INFO] [stderr]    Compiling tokio v1.28.2
[INFO] [stderr]    Compiling serde v1.0.164
[INFO] [stderr]     Checking utf8parse v0.2.1
[INFO] [stderr]    Compiling rustls v0.20.8
[INFO] [stderr]     Checking getrandom v0.2.10
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling memoffset v0.7.1
[INFO] [stderr]     Checking base64 v0.21.2
[INFO] [stderr]     Checking colorchoice v1.0.0
[INFO] [stderr]     Checking anstyle v1.0.0
[INFO] [stderr]     Checking anstyle-parse v0.2.0
[INFO] [stderr]     Checking anstyle-query v1.0.0
[INFO] [stderr]     Checking nanorand v0.7.0
[INFO] [stderr]    Compiling serde_json v1.0.97
[INFO] [stderr]    Compiling heck v0.4.1
[INFO] [stderr]     Checking clap_lex v0.5.0
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]     Checking rustls-pemfile v1.0.2
[INFO] [stderr]     Checking time v0.1.45
[INFO] [stderr]     Checking futures-channel v0.3.28
[INFO] [stderr]     Checking minimal-lexical v0.2.1
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking rustls-native-certs v0.6.3
[INFO] [stderr]     Checking nix v0.26.2
[INFO] [stderr]     Checking nom v7.1.3
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]     Checking chrono v0.4.26
[INFO] [stderr]     Checking is-terminal v0.4.7
[INFO] [stderr]     Checking anstream v0.3.2
[INFO] [stderr]     Checking clap_builder v4.3.4
[INFO] [stderr]    Compiling darling_core v0.20.1
[INFO] [stderr]     Checking webpki v0.22.0
[INFO] [stderr]     Checking sct v0.7.0
[INFO] [stderr]    Compiling futures-macro v0.3.28
[INFO] [stderr]    Compiling pin-project-internal v1.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.164
[INFO] [stderr]    Compiling tokio-macros v2.1.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.40
[INFO] [stderr]    Compiling clap_derive v4.3.2
[INFO] [stderr]    Compiling darling_macro v0.20.1
[INFO] [stderr]     Checking futures-util v0.3.28
[INFO] [stderr]     Checking thiserror v1.0.40
[INFO] [stderr]    Compiling darling v0.20.1
[INFO] [stderr]    Compiling serde_with_macros v3.0.0
[INFO] [stderr]     Checking pin-project v1.1.0
[INFO] [stderr]     Checking flume v0.10.14
[INFO] [stderr]     Checking clap v4.3.4
[INFO] [stderr]     Checking tokio-rustls v0.23.4
[INFO] [stderr]     Checking futures-executor v0.3.28
[INFO] [stderr]     Checking futures v0.3.28
[INFO] [stderr]     Checking rumqttc v0.21.0
[INFO] [stderr]     Checking serde_with v3.0.0
[INFO] [stderr]     Checking sermatec-ess v0.2.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `hex` is imported redundantly
[INFO] [stdout]  --> src/protocol/command.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use hex;
[INFO] [stdout]   |     ^^^ the item `hex` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `hex` is imported redundantly
[INFO] [stdout]  --> src/protocol/command.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use hex;
[INFO] [stdout]   |     ^^^ the item `hex` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 25.50s
[INFO] running `Command { std: "docker" "inspect" "82c271de5806d4aeccd0f91d700296ffdace1711c051890bbd3fbee8ae941331", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "82c271de5806d4aeccd0f91d700296ffdace1711c051890bbd3fbee8ae941331", kill_on_drop: false }`
[INFO] [stdout] 82c271de5806d4aeccd0f91d700296ffdace1711c051890bbd3fbee8ae941331
[INFO] checking sermatec-ess-0.2.3 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate sermatec-ess 0.2.3 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate sermatec-ess 0.2.3 on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sermatec-ess 0.2.3
[INFO] finished tweaking crates.io crate sermatec-ess 0.2.3
[INFO] tweaked toml for crates.io crate sermatec-ess 0.2.3 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate crates.io crate sermatec-ess 0.2.3 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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 124a60f114ec193d048fb68a49a9a2e922f85ea22c1c60eca1622c77e7d06249
[INFO] running `Command { std: "docker" "start" "-a" "124a60f114ec193d048fb68a49a9a2e922f85ea22c1c60eca1622c77e7d06249", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "124a60f114ec193d048fb68a49a9a2e922f85ea22c1c60eca1622c77e7d06249", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "124a60f114ec193d048fb68a49a9a2e922f85ea22c1c60eca1622c77e7d06249", kill_on_drop: false }`
[INFO] [stdout] 124a60f114ec193d048fb68a49a9a2e922f85ea22c1c60eca1622c77e7d06249
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 099e2eb507933af193b7b2e417aabcc3ef2a03edf27049e6753a169d0f4484f8
[INFO] running `Command { std: "docker" "start" "-a" "099e2eb507933af193b7b2e417aabcc3ef2a03edf27049e6753a169d0f4484f8", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]    Compiling futures-core v0.3.28
[INFO] [stderr]    Compiling io-lifetimes v1.0.11
[INFO] [stderr]    Compiling rustix v0.37.20
[INFO] [stderr]     Checking futures-sink v0.3.28
[INFO] [stderr]     Checking untrusted v0.7.1
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking linux-raw-sys v0.3.8
[INFO] [stderr]    Compiling syn v2.0.18
[INFO] [stderr]    Compiling tokio v1.28.2
[INFO] [stderr]    Compiling serde v1.0.164
[INFO] [stderr]    Compiling rustls v0.20.8
[INFO] [stderr]     Checking utf8parse v0.2.1
[INFO] [stderr]     Checking getrandom v0.2.10
[INFO] [stderr]    Compiling memoffset v0.7.1
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]     Checking anstyle-parse v0.2.0
[INFO] [stderr]     Checking colorchoice v1.0.0
[INFO] [stderr]     Checking anstyle v1.0.0
[INFO] [stderr]     Checking anstyle-query v1.0.0
[INFO] [stderr]     Checking base64 v0.21.2
[INFO] [stderr]    Compiling serde_json v1.0.97
[INFO] [stderr]     Checking nanorand v0.7.0
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]    Compiling heck v0.4.1
[INFO] [stderr]     Checking clap_lex v0.5.0
[INFO] [stderr]     Checking time v0.1.45
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking rustls-pemfile v1.0.2
[INFO] [stderr]     Checking minimal-lexical v0.2.1
[INFO] [stderr]     Checking futures-channel v0.3.28
[INFO] [stderr]     Checking nix v0.26.2
[INFO] [stderr]     Checking rustls-native-certs v0.6.3
[INFO] [stderr]     Checking nom v7.1.3
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]     Checking chrono v0.4.26
[INFO] [stderr]     Checking is-terminal v0.4.7
[INFO] [stderr]     Checking anstream v0.3.2
[INFO] [stderr]     Checking clap_builder v4.3.4
[INFO] [stderr]     Checking sct v0.7.0
[INFO] [stderr]     Checking webpki v0.22.0
[INFO] [stderr]    Compiling darling_core v0.20.1
[INFO] [stderr]    Compiling futures-macro v0.3.28
[INFO] [stderr]    Compiling tokio-macros v2.1.0
[INFO] [stderr]    Compiling pin-project-internal v1.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.164
[INFO] [stderr]    Compiling thiserror-impl v1.0.40
[INFO] [stderr]    Compiling clap_derive v4.3.2
[INFO] [stderr]    Compiling darling_macro v0.20.1
[INFO] [stderr]     Checking futures-util v0.3.28
[INFO] [stderr]     Checking pin-project v1.1.0
[INFO] [stderr]     Checking flume v0.10.14
[INFO] [stderr]     Checking thiserror v1.0.40
[INFO] [stderr]    Compiling darling v0.20.1
[INFO] [stderr]    Compiling serde_with_macros v3.0.0
[INFO] [stderr]     Checking clap v4.3.4
[INFO] [stderr]     Checking futures-executor v0.3.28
[INFO] [stderr]     Checking futures v0.3.28
[INFO] [stderr]     Checking tokio-rustls v0.23.4
[INFO] [stderr]     Checking rumqttc v0.21.0
[INFO] [stderr]     Checking serde_with v3.0.0
[INFO] [stderr]     Checking sermatec-ess v0.2.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `hex` is imported redundantly
[INFO] [stdout]  --> src/protocol/command.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use hex;
[INFO] [stdout]   |     ^^^ the item `hex` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `hex` is imported redundantly
[INFO] [stdout]  --> src/protocol/command.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use hex;
[INFO] [stdout]   |     ^^^ the item `hex` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 29.47s
[INFO] running `Command { std: "docker" "inspect" "099e2eb507933af193b7b2e417aabcc3ef2a03edf27049e6753a169d0f4484f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "099e2eb507933af193b7b2e417aabcc3ef2a03edf27049e6753a169d0f4484f8", kill_on_drop: false }`
[INFO] [stdout] 099e2eb507933af193b7b2e417aabcc3ef2a03edf27049e6753a169d0f4484f8