[INFO] cloning repository https://github.com/rust-shell-script/rust_cmd_lib
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rust-shell-script/rust_cmd_lib" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frust-shell-script%2Frust_cmd_lib", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frust-shell-script%2Frust_cmd_lib'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 186b0b9e4a8b8534797e56bad09bc993d9b8b408
[INFO] checking rust-shell-script/rust_cmd_lib against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frust-shell-script%2Frust_cmd_lib" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rust-shell-script/rust_cmd_lib 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 git repo https://github.com/rust-shell-script/rust_cmd_lib
[INFO] finished tweaking git repo https://github.com/rust-shell-script/rust_cmd_lib
[INFO] tweaked toml for git repo https://github.com/rust-shell-script/rust_cmd_lib written to /workspace/builds/worker-5-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 61 packages
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.5.0)
[INFO] [stderr]       Adding byte-unit v4.0.19 (latest: v5.1.4)
[INFO] [stderr]       Adding clap v2.34.0 (latest: v4.5.4)
[INFO] [stderr]       Adding env_logger v0.10.2 (latest: v0.11.3)
[INFO] [stderr]       Adding heck v0.3.3 (latest: v0.5.0)
[INFO] [stderr]       Adding hermit-abi v0.1.19 (latest: v0.3.9)
[INFO] [stderr]       Adding strsim v0.8.0 (latest: v0.11.1)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.58)
[INFO] [stderr]       Adding textwrap v0.11.0 (latest: v0.16.1)
[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 faccess v0.2.4
[INFO] [stderr]   Downloaded byte-unit v4.0.19
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] fb39073872388dc28070b44086adfd1332d49aacd0f67fd4402c584ac596d8bf
[INFO] running `Command { std: "docker" "start" "-a" "fb39073872388dc28070b44086adfd1332d49aacd0f67fd4402c584ac596d8bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fb39073872388dc28070b44086adfd1332d49aacd0f67fd4402c584ac596d8bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb39073872388dc28070b44086adfd1332d49aacd0f67fd4402c584ac596d8bf", kill_on_drop: false }`
[INFO] [stdout] fb39073872388dc28070b44086adfd1332d49aacd0f67fd4402c584ac596d8bf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 5d2ac87104b277b0e94b8cd8eaa9ec9173479daa794a6183cf1c021e162e89be
[INFO] running `Command { std: "docker" "start" "-a" "5d2ac87104b277b0e94b8cd8eaa9ec9173479daa794a6183cf1c021e162e89be", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]     Checking memchr v2.7.2
[INFO] [stderr]     Checking regex-syntax v0.8.3
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking termcolor v1.4.1
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]     Checking log v0.4.21
[INFO] [stderr]    Compiling unicode-segmentation v1.11.0
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking os_pipe v1.1.5
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking faccess v0.2.4
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking utf8-width v0.1.7
[INFO] [stderr]     Checking either v1.10.0
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]     Checking unicode-ident v1.0.12
[INFO] [stderr]     Checking proc-macro2 v1.0.79
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
[INFO] [stderr]     Checking quote v1.0.35
[INFO] [stderr]     Checking crossbeam-deque v0.8.5
[INFO] [stderr]     Checking rayon v1.10.0
[INFO] [stderr]     Checking regex-automata v0.4.6
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking byte-unit v4.0.19
[INFO] [stderr]     Checking cmd_lib_macros v1.9.3 (/opt/rustwide/workdir/macros)
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]     Checking regex v1.10.4
[INFO] [stderr]     Checking env_logger v0.10.2
[INFO] [stderr]     Checking cmd_lib v1.9.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `os_pipe` is imported redundantly
[INFO] [stdout]  --> src/process.rs:8:15
[INFO] [stdout]   |
[INFO] [stdout] 8 | use os_pipe::{self, PipeReader, PipeWriter};
[INFO] [stdout]   |               ^^^^ the item `os_pipe` 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] [stderr]     Checking structopt v0.3.26
[INFO] [stdout] warning: the item `os_pipe` is imported redundantly
[INFO] [stdout]  --> src/process.rs:8:15
[INFO] [stdout]   |
[INFO] [stdout] 8 | use os_pipe::{self, PipeReader, PipeWriter};
[INFO] [stdout]   |               ^^^^ the item `os_pipe` 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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 25.77s
[INFO] running `Command { std: "docker" "inspect" "5d2ac87104b277b0e94b8cd8eaa9ec9173479daa794a6183cf1c021e162e89be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d2ac87104b277b0e94b8cd8eaa9ec9173479daa794a6183cf1c021e162e89be", kill_on_drop: false }`
[INFO] [stdout] 5d2ac87104b277b0e94b8cd8eaa9ec9173479daa794a6183cf1c021e162e89be