[INFO] cloning repository https://github.com/pacman82/cobra-kai-code-dojo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pacman82/cobra-kai-code-dojo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpacman82%2Fcobra-kai-code-dojo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpacman82%2Fcobra-kai-code-dojo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1ffed4f0f86d3d1b29179ee3fccbecf5fa82b34d
[INFO] checking pacman82/cobra-kai-code-dojo against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpacman82%2Fcobra-kai-code-dojo" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/pacman82/cobra-kai-code-dojo 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/pacman82/cobra-kai-code-dojo
[INFO] finished tweaking git repo https://github.com/pacman82/cobra-kai-code-dojo
[INFO] tweaked toml for git repo https://github.com/pacman82/cobra-kai-code-dojo written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/pacman82/cobra-kai-code-dojo 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] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 95355e3c9683c5da14f432615ba770b7e75b5a3553dcf38c6b1d1881d0cb17c6
[INFO] running `Command { std: "docker" "start" "-a" "95355e3c9683c5da14f432615ba770b7e75b5a3553dcf38c6b1d1881d0cb17c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "95355e3c9683c5da14f432615ba770b7e75b5a3553dcf38c6b1d1881d0cb17c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "95355e3c9683c5da14f432615ba770b7e75b5a3553dcf38c6b1d1881d0cb17c6", kill_on_drop: false }`
[INFO] [stdout] 95355e3c9683c5da14f432615ba770b7e75b5a3553dcf38c6b1d1881d0cb17c6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 6c8a0e4bd0698e6763bafb59c43233471fd3cbc4bcf6125e3af3e2da4999f652
[INFO] running `Command { std: "docker" "start" "-a" "6c8a0e4bd0698e6763bafb59c43233471fd3cbc4bcf6125e3af3e2da4999f652", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]    Compiling serde v1.0.144
[INFO] [stderr]    Compiling crossbeam-utils v0.8.11
[INFO] [stderr]     Checking once_cell v1.13.1
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.10
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling rayon-core v1.9.3
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling serde_json v1.0.85
[INFO] [stderr]     Checking ryu v1.0.11
[INFO] [stderr]    Compiling syn v1.0.99
[INFO] [stderr]     Checking either v1.8.0
[INFO] [stderr]    Compiling rayon v1.5.3
[INFO] [stderr]     Checking itoa v1.0.3
[INFO] [stderr]    Compiling serde_derive v1.0.144
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]     Checking plotters-backend v0.3.4
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking regex-syntax v0.6.27
[INFO] [stderr]     Checking itertools v0.10.3
[INFO] [stderr]     Checking cast v0.3.0
[INFO] [stderr]     Checking oorandom v11.1.3
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking plotters-svg v0.3.3
[INFO] [stderr]     Checking session-2 v0.1.0 (/opt/rustwide/workdir/session-2)
[INFO] [stderr]     Checking session-1 v0.1.0 (/opt/rustwide/workdir/session-1)
[INFO] [stderr]     Checking knights-journey v0.1.0 (/opt/rustwide/workdir/session-3-5)
[INFO] [stderr]     Checking crossbeam-channel v0.5.6
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking crossbeam-deque v0.8.2
[INFO] [stderr]     Checking criterion-plot v0.4.5
[INFO] [stderr]     Checking regex v1.6.0
[INFO] [stderr]     Checking plotters v0.3.3
[INFO] [stderr]     Checking bstr v0.2.17
[INFO] [stderr]     Checking serde_cbor v0.11.2
[INFO] [stderr]     Checking csv v1.1.6
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking criterion v0.3.6
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.31s
[INFO] running `Command { std: "docker" "inspect" "6c8a0e4bd0698e6763bafb59c43233471fd3cbc4bcf6125e3af3e2da4999f652", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c8a0e4bd0698e6763bafb59c43233471fd3cbc4bcf6125e3af3e2da4999f652", kill_on_drop: false }`
[INFO] [stdout] 6c8a0e4bd0698e6763bafb59c43233471fd3cbc4bcf6125e3af3e2da4999f652
[INFO] checking pacman82/cobra-kai-code-dojo against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpacman82%2Fcobra-kai-code-dojo" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/pacman82/cobra-kai-code-dojo 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 git repo https://github.com/pacman82/cobra-kai-code-dojo
[INFO] finished tweaking git repo https://github.com/pacman82/cobra-kai-code-dojo
[INFO] tweaked toml for git repo https://github.com/pacman82/cobra-kai-code-dojo written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/pacman82/cobra-kai-code-dojo 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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 0f00ac89f36017948783f54333efe5b2082c6e1542b605a05fa8cef33617a734
[INFO] running `Command { std: "docker" "start" "-a" "0f00ac89f36017948783f54333efe5b2082c6e1542b605a05fa8cef33617a734", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0f00ac89f36017948783f54333efe5b2082c6e1542b605a05fa8cef33617a734", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f00ac89f36017948783f54333efe5b2082c6e1542b605a05fa8cef33617a734", kill_on_drop: false }`
[INFO] [stdout] 0f00ac89f36017948783f54333efe5b2082c6e1542b605a05fa8cef33617a734
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] d1c5f2f0faf98b74c00a4fb3d6c2a886379c6469c33c90ce8790a94eff5063bf
[INFO] running `Command { std: "docker" "start" "-a" "d1c5f2f0faf98b74c00a4fb3d6c2a886379c6469c33c90ce8790a94eff5063bf", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]    Compiling crossbeam-utils v0.8.11
[INFO] [stderr]    Compiling serde v1.0.144
[INFO] [stderr]     Checking once_cell v1.13.1
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.10
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling rayon-core v1.9.3
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]     Checking either v1.8.0
[INFO] [stderr]    Compiling syn v1.0.99
[INFO] [stderr]    Compiling serde_json v1.0.85
[INFO] [stderr]     Checking ryu v1.0.11
[INFO] [stderr]    Compiling rayon v1.5.3
[INFO] [stderr]    Compiling serde_derive v1.0.144
[INFO] [stderr]     Checking plotters-backend v0.3.4
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]     Checking itoa v1.0.3
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking itertools v0.10.3
[INFO] [stderr]     Checking regex-syntax v0.6.27
[INFO] [stderr]     Checking cast v0.3.0
[INFO] [stderr]     Checking oorandom v11.1.3
[INFO] [stderr]     Checking session-2 v0.1.0 (/opt/rustwide/workdir/session-2)
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking plotters-svg v0.3.3
[INFO] [stderr]     Checking session-1 v0.1.0 (/opt/rustwide/workdir/session-1)
[INFO] [stderr]     Checking knights-journey v0.1.0 (/opt/rustwide/workdir/session-3-5)
[INFO] [stderr]     Checking crossbeam-channel v0.5.6
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking crossbeam-deque v0.8.2
[INFO] [stderr]     Checking criterion-plot v0.4.5
[INFO] [stderr]     Checking regex v1.6.0
[INFO] [stderr]     Checking plotters v0.3.3
[INFO] [stderr]     Checking bstr v0.2.17
[INFO] [stderr]     Checking serde_cbor v0.11.2
[INFO] [stderr]     Checking csv v1.1.6
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking criterion v0.3.6
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 16.80s
[INFO] running `Command { std: "docker" "inspect" "d1c5f2f0faf98b74c00a4fb3d6c2a886379c6469c33c90ce8790a94eff5063bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1c5f2f0faf98b74c00a4fb3d6c2a886379c6469c33c90ce8790a94eff5063bf", kill_on_drop: false }`
[INFO] [stdout] d1c5f2f0faf98b74c00a4fb3d6c2a886379c6469c33c90ce8790a94eff5063bf