[INFO] fetching crate secop-modules 0.1.3...
[INFO] checking secop-modules-0.1.3 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate secop-modules 0.1.3 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate secop-modules 0.1.3 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 secop-modules 0.1.3
[INFO] finished tweaking crates.io crate secop-modules 0.1.3
[INFO] tweaked toml for crates.io crate secop-modules 0.1.3 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 124 packages
[INFO] [stderr]       Adding ahash v0.4.8 (latest: v0.8.11)
[INFO] [stderr]       Adding ahash v0.7.8 (latest: v0.8.11)
[INFO] [stderr]       Adding base64 v0.13.1 (latest: v0.22.0)
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.5.0)
[INFO] [stderr]       Adding darling v0.13.4 (latest: v0.20.8)
[INFO] [stderr]       Adding darling_core v0.13.4 (latest: v0.20.8)
[INFO] [stderr]       Adding darling_macro v0.13.4 (latest: v0.20.8)
[INFO] [stderr]       Adding derive-new v0.5.9 (latest: v0.6.0)
[INFO] [stderr]       Adding dns-lookup v1.0.8 (latest: v2.0.4)
[INFO] [stderr]       Adding hashbrown v0.9.1 (latest: v0.14.3)
[INFO] [stderr]       Adding hashbrown v0.11.2 (latest: v0.14.3)
[INFO] [stderr]       Adding hostname v0.3.1 (latest: v0.4.0)
[INFO] [stderr]       Adding itertools v0.10.5 (latest: v0.12.1)
[INFO] [stderr]       Adding mlzlog v0.7.0 (latest: v0.8.1)
[INFO] [stderr]       Adding mlzutil v0.2.2 (latest: v0.3.0)
[INFO] [stderr]       Adding nix v0.26.4 (latest: v0.28.0)
[INFO] [stderr]       Adding parking_lot v0.11.2 (latest: v0.12.1)
[INFO] [stderr]       Adding parking_lot_core v0.8.6 (latest: v0.9.9)
[INFO] [stderr]       Adding redox_syscall v0.2.16 (latest: v0.5.1)
[INFO] [stderr]       Adding socket2 v0.4.10 (latest: v0.5.6)
[INFO] [stderr]       Adding strsim v0.10.0 (latest: v0.11.1)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.58)
[INFO] [stderr]       Adding synstructure v0.12.6 (latest: v0.13.1)
[INFO] [stderr]       Adding systemstat v0.1.12 (latest: v0.2.3)
[INFO] [stderr]       Adding time v0.1.45 (latest: v0.3.34)
[INFO] [stderr]       Adding toml v0.5.11 (latest: v0.8.12)
[INFO] [stderr]       Adding wasi v0.10.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[INFO] [stderr]       Adding windows-core v0.52.0 (latest: v0.55.0)
[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]  Downloading crates ...
[INFO] [stderr]   Downloaded serialport v4.3.0
[INFO] [stderr]   Downloaded dns-lookup v1.0.8
[INFO] [stderr]   Downloaded mlzutil v0.2.2
[INFO] [stderr]   Downloaded mlzlog v0.7.0
[INFO] [stderr]   Downloaded systemstat v0.1.12
[INFO] [stderr]   Downloaded secop-core v0.1.3
[INFO] [stderr]   Downloaded libudev v0.3.0
[INFO] [stderr]   Downloaded secop-derive v0.1.3
[INFO] [stderr]   Downloaded unescaper v0.1.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] c4e4edb4e4536e0bfde87f231d5293d513092cdb54d9c2462c7309263cf83a6c
[INFO] running `Command { std: "docker" "start" "-a" "c4e4edb4e4536e0bfde87f231d5293d513092cdb54d9c2462c7309263cf83a6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c4e4edb4e4536e0bfde87f231d5293d513092cdb54d9c2462c7309263cf83a6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c4e4edb4e4536e0bfde87f231d5293d513092cdb54d9c2462c7309263cf83a6c", kill_on_drop: false }`
[INFO] [stdout] c4e4edb4e4536e0bfde87f231d5293d513092cdb54d9c2462c7309263cf83a6c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 44a79a6b3b0bedf1a2f65a229ea1afca1751269de81c9d0ac2c7c216f321955d
[INFO] running `Command { std: "docker" "start" "-a" "44a79a6b3b0bedf1a2f65a229ea1afca1751269de81c9d0ac2c7c216f321955d", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]    Compiling ahash v0.7.8
[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]     Checking thread-id v4.2.1
[INFO] [stderr]     Checking time v0.1.45
[INFO] [stderr]     Checking parking_lot_core v0.8.6
[INFO] [stderr]     Checking socket2 v0.4.10
[INFO] [stderr]     Checking bytesize v1.3.0
[INFO] [stderr]     Checking chrono v0.4.37
[INFO] [stderr]     Checking log-mdc v0.1.0
[INFO] [stderr]     Checking ahash v0.4.8
[INFO] [stderr]     Checking arc-swap v1.7.1
[INFO] [stderr]     Checking hostname v0.3.1
[INFO] [stderr]     Checking libudev-sys v0.1.4
[INFO] [stderr]     Checking time v0.3.34
[INFO] [stderr]     Checking lock_api v0.4.11
[INFO] [stderr]     Checking nix v0.26.4
[INFO] [stderr]     Checking libudev v0.3.0
[INFO] [stderr]     Checking unescaper v0.1.4
[INFO] [stderr]     Checking toml v0.5.11
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]     Checking dns-lookup v1.0.8
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]     Checking crossbeam-channel v0.5.12
[INFO] [stderr]     Checking systemstat v0.1.12
[INFO] [stderr]     Checking serialport v4.3.0
[INFO] [stderr]     Checking mlzutil v0.2.2
[INFO] [stderr]    Compiling darling_core v0.13.4
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]    Compiling derive-new v0.5.9
[INFO] [stderr]    Compiling darling_macro v0.13.4
[INFO] [stderr]    Compiling darling v0.13.4
[INFO] [stderr]     Checking log4rs v1.3.0
[INFO] [stderr]    Compiling secop-derive v0.1.3
[INFO] [stderr]     Checking mlzlog v0.7.0
[INFO] [stderr]     Checking secop-core v0.1.3
[INFO] [stderr]     Checking secop-modules v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `serialport` is imported redundantly
[INFO] [stdout]   --> src/serial.rs:27:18
[INFO] [stdout]    |
[INFO] [stdout] 27 | use serialport::{self, TTYPort};
[INFO] [stdout]    |                  ^^^^ the item `serialport` 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 `serialport` is imported redundantly
[INFO] [stdout]   --> src/serial.rs:27:18
[INFO] [stdout]    |
[INFO] [stdout] 27 | use serialport::{self, TTYPort};
[INFO] [stdout]    |                  ^^^^ the item `serialport` 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 17.09s
[INFO] running `Command { std: "docker" "inspect" "44a79a6b3b0bedf1a2f65a229ea1afca1751269de81c9d0ac2c7c216f321955d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44a79a6b3b0bedf1a2f65a229ea1afca1751269de81c9d0ac2c7c216f321955d", kill_on_drop: false }`
[INFO] [stdout] 44a79a6b3b0bedf1a2f65a229ea1afca1751269de81c9d0ac2c7c216f321955d
[INFO] checking secop-modules-0.1.3 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate secop-modules 0.1.3 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate secop-modules 0.1.3 on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate secop-modules 0.1.3
[INFO] finished tweaking crates.io crate secop-modules 0.1.3
[INFO] tweaked toml for crates.io crate secop-modules 0.1.3 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 619ac27fad56e586316b58d8b8435c30af1b2ebf2588d12eb12ff7c7d48ac969
[INFO] running `Command { std: "docker" "start" "-a" "619ac27fad56e586316b58d8b8435c30af1b2ebf2588d12eb12ff7c7d48ac969", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "619ac27fad56e586316b58d8b8435c30af1b2ebf2588d12eb12ff7c7d48ac969", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "619ac27fad56e586316b58d8b8435c30af1b2ebf2588d12eb12ff7c7d48ac969", kill_on_drop: false }`
[INFO] [stdout] 619ac27fad56e586316b58d8b8435c30af1b2ebf2588d12eb12ff7c7d48ac969
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d865afccc45f93cb918005065e56403518f5e24498621755ea0db871dde81448
[INFO] running `Command { std: "docker" "start" "-a" "d865afccc45f93cb918005065e56403518f5e24498621755ea0db871dde81448", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]    Compiling ahash v0.7.8
[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]     Checking thread-id v4.2.1
[INFO] [stderr]     Checking parking_lot_core v0.8.6
[INFO] [stderr]     Checking time v0.1.45
[INFO] [stderr]     Checking socket2 v0.4.10
[INFO] [stderr]     Checking chrono v0.4.37
[INFO] [stderr]     Checking arc-swap v1.7.1
[INFO] [stderr]     Checking log-mdc v0.1.0
[INFO] [stderr]     Checking bytesize v1.3.0
[INFO] [stderr]     Checking ahash v0.4.8
[INFO] [stderr]     Checking hostname v0.3.1
[INFO] [stderr]     Checking libudev-sys v0.1.4
[INFO] [stderr]     Checking time v0.3.34
[INFO] [stderr]     Checking nix v0.26.4
[INFO] [stderr]     Checking unescaper v0.1.4
[INFO] [stderr]     Checking lock_api v0.4.11
[INFO] [stderr]     Checking libudev v0.3.0
[INFO] [stderr]     Checking toml v0.5.11
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking dns-lookup v1.0.8
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]     Checking crossbeam-channel v0.5.12
[INFO] [stderr]     Checking serialport v4.3.0
[INFO] [stderr]     Checking systemstat v0.1.12
[INFO] [stderr]     Checking mlzutil v0.2.2
[INFO] [stderr]    Compiling darling_core v0.13.4
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]    Compiling derive-new v0.5.9
[INFO] [stderr]    Compiling darling_macro v0.13.4
[INFO] [stderr]     Checking log4rs v1.3.0
[INFO] [stderr]     Checking mlzlog v0.7.0
[INFO] [stderr]    Compiling darling v0.13.4
[INFO] [stderr]    Compiling secop-derive v0.1.3
[INFO] [stderr]     Checking secop-core v0.1.3
[INFO] [stderr]     Checking secop-modules v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `serialport` is imported redundantly
[INFO] [stdout]   --> src/serial.rs:27:18
[INFO] [stdout]    |
[INFO] [stdout] 27 | use serialport::{self, TTYPort};
[INFO] [stdout]    |                  ^^^^ the item `serialport` 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 `serialport` is imported redundantly
[INFO] [stdout]   --> src/serial.rs:27:18
[INFO] [stdout]    |
[INFO] [stdout] 27 | use serialport::{self, TTYPort};
[INFO] [stdout]    |                  ^^^^ the item `serialport` 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 17.52s
[INFO] running `Command { std: "docker" "inspect" "d865afccc45f93cb918005065e56403518f5e24498621755ea0db871dde81448", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d865afccc45f93cb918005065e56403518f5e24498621755ea0db871dde81448", kill_on_drop: false }`
[INFO] [stdout] d865afccc45f93cb918005065e56403518f5e24498621755ea0db871dde81448