[INFO] cloning repository https://github.com/KaiserLancelot/rust-learning
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/KaiserLancelot/rust-learning" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKaiserLancelot%2Frust-learning", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKaiserLancelot%2Frust-learning'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1935115f9b32e2d91bdd417c6527a7e6c621e6b1
[INFO] checking KaiserLancelot/rust-learning against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKaiserLancelot%2Frust-learning" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/KaiserLancelot/rust-learning 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] removed /workspace/builds/worker-0-tc1/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/KaiserLancelot/rust-learning
[INFO] finished tweaking git repo https://github.com/KaiserLancelot/rust-learning
[INFO] tweaked toml for git repo https://github.com/KaiserLancelot/rust-learning written to /workspace/builds/worker-0-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 169 packages
[INFO] [stderr]       Adding atoi v0.3.3 (latest: v2.0.0)
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.5.0)
[INFO] [stderr]       Adding clap v2.34.0 (latest: v4.5.4)
[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 matchers v0.0.1 (latest: v0.1.0)
[INFO] [stderr]       Adding nu-ansi-term v0.46.0 (latest: v0.50.0)
[INFO] [stderr]       Adding object v0.32.2 (latest: v0.34.0)
[INFO] [stderr]       Adding redox_syscall v0.4.1 (latest: v0.5.1)
[INFO] [stderr]       Adding regex-automata v0.1.10 (latest: v0.4.6)
[INFO] [stderr]       Adding regex-syntax v0.6.29 (latest: v0.8.3)
[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] [stderr]       Adding tracing-log v0.1.4 (latest: v0.2.0)
[INFO] [stderr]       Adding tracing-subscriber v0.2.25 (latest: v0.3.18)
[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] [stderr]       Adding windows-sys v0.48.0 (latest: v0.52.0)
[INFO] [stderr]       Adding windows-targets v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_aarch64_gnullvm v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_aarch64_msvc v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_i686_gnu v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_i686_msvc v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_x86_64_gnu v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_x86_64_gnullvm v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_x86_64_msvc v0.48.5 (latest: v0.52.4)
[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 mini-redis v0.4.1
[INFO] [stderr]   Downloaded atoi v0.3.3
[INFO] [stderr]   Downloaded snmalloc-rs v0.3.5
[INFO] [stderr]   Downloaded snmalloc-sys v0.3.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 472113322de97802620f661633923a455d968ab00ae2aca58ebf500bab6356bd
[INFO] running `Command { std: "docker" "start" "-a" "472113322de97802620f661633923a455d968ab00ae2aca58ebf500bab6356bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "472113322de97802620f661633923a455d968ab00ae2aca58ebf500bab6356bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "472113322de97802620f661633923a455d968ab00ae2aca58ebf500bab6356bd", kill_on_drop: false }`
[INFO] [stdout] 472113322de97802620f661633923a455d968ab00ae2aca58ebf500bab6356bd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 82835622d29444ce1e16b8fe9e8d9f96e41125591d6a00f25e05567f67257824
[INFO] running `Command { std: "docker" "start" "-a" "82835622d29444ce1e16b8fe9e8d9f96e41125591d6a00f25e05567f67257824", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking log v0.4.21
[INFO] [stderr]    Compiling cmake v0.1.50
[INFO] [stderr]     Checking regex-syntax v0.8.3
[INFO] [stderr]     Checking unicode-width v0.1.11
[INFO] [stderr]    Compiling unicode-segmentation v1.11.0
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling snmalloc-sys v0.3.5
[INFO] [stderr]     Checking thread_local v1.1.8
[INFO] [stderr]     Checking parking_lot_core v0.9.9
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]     Checking socket2 v0.5.6
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking regex-automata v0.4.6
[INFO] [stderr]     Checking mio v0.8.11
[INFO] [stderr]     Checking powerfmt v0.2.0
[INFO] [stderr]     Checking iana-time-zone v0.1.60
[INFO] [stderr]     Checking chrono v0.4.37
[INFO] [stderr]     Checking deranged v0.3.11
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking matchers v0.0.1
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
[INFO] [stderr]     Checking tracing-log v0.1.4
[INFO] [stderr]     Checking time-core v0.1.2
[INFO] [stderr]     Checking num-conv v0.1.0
[INFO] [stderr]     Checking num_threads v0.1.7
[INFO] [stderr]     Checking crossbeam-deque v0.8.5
[INFO] [stderr]     Checking time v0.3.34
[INFO] [stderr]     Checking regex v1.10.4
[INFO] [stderr]     Checking atoi v0.3.3
[INFO] [stderr]     Checking crossbeam-queue v0.3.11
[INFO] [stderr]     Checking serde_json v1.0.115
[INFO] [stderr]     Checking tracing-serde v0.1.3
[INFO] [stderr]     Checking crossbeam-channel v0.5.12
[INFO] [stderr]     Checking tracing-log v0.2.0
[INFO] [stderr]     Checking hashbrown v0.14.3
[INFO] [stderr]     Checking tracing-subscriber v0.3.18
[INFO] [stderr]     Checking hello_macro v0.1.0 (/opt/rustwide/workdir/trpl/chapter19/hello_macro)
[INFO] [stderr]     Checking crossbeam v0.8.4
[INFO] [stderr]     Checking getrandom v0.2.13
[INFO] [stderr]     Checking unicode-ident v1.0.12
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking proc-macro2 v1.0.79
[INFO] [stderr]     Checking exitcode v1.1.2
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking chapter12 v0.1.0 (/opt/rustwide/workdir/trpl/chapter12)
[INFO] [stderr]     Checking chapter20 v0.1.0 (/opt/rustwide/workdir/trpl/chapter20)
[INFO] [stderr]     Checking chapter07 v0.1.0 (/opt/rustwide/workdir/trpl/chapter07)
[INFO] [stderr]     Checking chapter11 v0.1.0 (/opt/rustwide/workdir/trpl/chapter11)
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking quote v1.0.35
[INFO] [stderr]     Checking dashmap v5.5.3
[INFO] [stderr]     Checking chapter06 v0.1.0 (/opt/rustwide/workdir/trpl/chapter06)
[INFO] [stderr]     Checking chapter04 v0.1.0 (/opt/rustwide/workdir/trpl/chapter04)
[INFO] [stderr]     Checking chapter10 v0.1.0 (/opt/rustwide/workdir/trpl/chapter10)
[INFO] [stderr]     Checking chapter16 v0.1.0 (/opt/rustwide/workdir/trpl/chapter16)
[INFO] [stderr]     Checking chapter15 v0.1.0 (/opt/rustwide/workdir/trpl/chapter15)
[INFO] [stdout] warning: trait `MyTrait` is never used
[INFO] [stdout]   --> trpl/chapter10/src/bin/10_2.rs:98:7
[INFO] [stdout]    |
[INFO] [stdout] 98 | trait MyTrait {}
[INFO] [stdout]    |       ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking chapter02 v0.1.0 (/opt/rustwide/workdir/trpl/chapter02)
[INFO] [stderr]     Checking chapter05 v0.1.0 (/opt/rustwide/workdir/trpl/chapter05)
[INFO] [stderr]     Checking chapter13 v0.1.0 (/opt/rustwide/workdir/trpl/chapter13)
[INFO] [stderr]     Checking appendix_c v0.1.0 (/opt/rustwide/workdir/trpl/appendix_c)
[INFO] [stderr]     Checking chapter18 v0.1.0 (/opt/rustwide/workdir/trpl/chapter18)
[INFO] [stderr]     Checking chapter08 v0.1.0 (/opt/rustwide/workdir/trpl/chapter08)
[INFO] [stderr]     Checking chapter03 v0.1.0 (/opt/rustwide/workdir/trpl/chapter03)
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]     Checking chapter14 v0.1.0 (/opt/rustwide/workdir/trpl/chapter14)
[INFO] [stderr]     Checking chapter17 v0.1.0 (/opt/rustwide/workdir/trpl/chapter17)
[INFO] [stderr]     Checking chapter09 v0.1.0 (/opt/rustwide/workdir/trpl/chapter09)
[INFO] [stdout] warning: trait `MyTrait` is never used
[INFO] [stdout]   --> trpl/chapter10/src/bin/10_2.rs:98:7
[INFO] [stdout]    |
[INFO] [stdout] 98 | trait MyTrait {}
[INFO] [stdout]    |       ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling tracing-attributes v0.1.27
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]    Compiling pin-project-internal v1.1.5
[INFO] [stderr]    Compiling async-stream-impl v0.3.5
[INFO] [stderr]    Compiling hello_macro_derive v0.1.0 (/opt/rustwide/workdir/trpl/chapter19/hello_macro_derive)
[INFO] [stderr]     Checking structopt v0.3.26
[INFO] [stderr]     Checking chapter19 v0.1.0 (/opt/rustwide/workdir/trpl/chapter19)
[INFO] [stderr]     Checking tokio v1.37.0
[INFO] [stderr]     Checking async-stream v0.3.5
[INFO] [stderr]     Checking pin-project v1.1.5
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking tracing-futures v0.2.5
[INFO] [stderr]     Checking tracing-subscriber v0.2.25
[INFO] [stderr]     Checking snmalloc-rs v0.3.5
[INFO] [stderr]     Checking tokio-stream v0.1.15
[INFO] [stderr]     Checking mini-redis v0.4.1
[INFO] [stderr]     Checking tokio_learning v0.1.0 (/opt/rustwide/workdir/tokio)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 53.86s
[INFO] running `Command { std: "docker" "inspect" "82835622d29444ce1e16b8fe9e8d9f96e41125591d6a00f25e05567f67257824", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "82835622d29444ce1e16b8fe9e8d9f96e41125591d6a00f25e05567f67257824", kill_on_drop: false }`
[INFO] [stdout] 82835622d29444ce1e16b8fe9e8d9f96e41125591d6a00f25e05567f67257824
[INFO] checking KaiserLancelot/rust-learning against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKaiserLancelot%2Frust-learning" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/KaiserLancelot/rust-learning 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] removed /workspace/builds/worker-0-tc2/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/KaiserLancelot/rust-learning
[INFO] finished tweaking git repo https://github.com/KaiserLancelot/rust-learning
[INFO] tweaked toml for git repo https://github.com/KaiserLancelot/rust-learning written to /workspace/builds/worker-0-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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 5e52366dfd5b3b2c7b8bd85a245c596ee16deae0557156699f1465beb69981c2
[INFO] running `Command { std: "docker" "start" "-a" "5e52366dfd5b3b2c7b8bd85a245c596ee16deae0557156699f1465beb69981c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5e52366dfd5b3b2c7b8bd85a245c596ee16deae0557156699f1465beb69981c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e52366dfd5b3b2c7b8bd85a245c596ee16deae0557156699f1465beb69981c2", kill_on_drop: false }`
[INFO] [stdout] 5e52366dfd5b3b2c7b8bd85a245c596ee16deae0557156699f1465beb69981c2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 6796574389ab7111a54a2fd8c567a040239696c8e78ec6d428d61c9a1ad4d24b
[INFO] running `Command { std: "docker" "start" "-a" "6796574389ab7111a54a2fd8c567a040239696c8e78ec6d428d61c9a1ad4d24b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking log v0.4.21
[INFO] [stderr]    Compiling cmake v0.1.50
[INFO] [stderr]    Compiling unicode-segmentation v1.11.0
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[INFO] [stderr]     Checking chapter02 v0.1.0 (/opt/rustwide/workdir/trpl/chapter02)
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[INFO] [stdout] warning: trait `MyTrait` is never used
[INFO] [stdout]   --> trpl/chapter10/src/bin/10_2.rs:98:7
[INFO] [stdout]    |
[INFO] [stdout] 98 | trait MyTrait {}
[INFO] [stdout]    |       ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `MyTrait` is never used
[INFO] [stdout]   --> trpl/chapter10/src/bin/10_2.rs:98:7
[INFO] [stdout]    |
[INFO] [stdout] 98 | trait MyTrait {}
[INFO] [stdout]    |       ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
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[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 56.92s
[INFO] running `Command { std: "docker" "inspect" "6796574389ab7111a54a2fd8c567a040239696c8e78ec6d428d61c9a1ad4d24b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6796574389ab7111a54a2fd8c567a040239696c8e78ec6d428d61c9a1ad4d24b", kill_on_drop: false }`
[INFO] [stdout] 6796574389ab7111a54a2fd8c567a040239696c8e78ec6d428d61c9a1ad4d24b