[INFO] cloning repository https://github.com/purnatag/xorword
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/purnatag/xorword" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpurnatag%2Fxorword", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpurnatag%2Fxorword'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1ca6f0bfd598da3b0153fd0d2fa5f921fb7ef415
[INFO] checking purnatag/xorword against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpurnatag%2Fxorword" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/purnatag/xorword 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/purnatag/xorword
[INFO] finished tweaking git repo https://github.com/purnatag/xorword
[INFO] tweaked toml for git repo https://github.com/purnatag/xorword written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/purnatag/xorword 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 askama_shared v0.9.1
[INFO] [stderr]   Downloaded str-distance v0.1.0
[INFO] [stderr]   Downloaded askama v0.9.0
[INFO] [stderr]   Downloaded target v2.0.0
[INFO] [stderr]   Downloaded askama_escape v0.3.0
[INFO] [stderr]   Downloaded askama_derive v0.9.0
[INFO] [stderr]   Downloaded lexiclean v0.0.1
[INFO] [stderr]   Downloaded ctrlc v3.4.0
[INFO] [stderr]   Downloaded camino v1.1.4
[INFO] [stderr]   Downloaded plotly v0.6.0
[INFO] [stderr]   Downloaded just v1.14.0
[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] 618f59488164237cf92a1e3bf2497633ae24e5206ecf0aedc72143958f7d14ef
[INFO] running `Command { std: "docker" "start" "-a" "618f59488164237cf92a1e3bf2497633ae24e5206ecf0aedc72143958f7d14ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "618f59488164237cf92a1e3bf2497633ae24e5206ecf0aedc72143958f7d14ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "618f59488164237cf92a1e3bf2497633ae24e5206ecf0aedc72143958f7d14ef", kill_on_drop: false }`
[INFO] [stdout] 618f59488164237cf92a1e3bf2497633ae24e5206ecf0aedc72143958f7d14ef
[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] 49b88e318fc3fac19be4ef09bc8237b42537e28ee1e4559e196c877bbed39958
[INFO] running `Command { std: "docker" "start" "-a" "49b88e318fc3fac19be4ef09bc8237b42537e28ee1e4559e196c877bbed39958", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.25
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]    Compiling serde v1.0.171
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling nom v5.1.3
[INFO] [stderr]     Checking getrandom v0.2.10
[INFO] [stderr]    Compiling io-lifetimes v1.0.11
[INFO] [stderr]    Compiling rustversion v1.0.13
[INFO] [stderr]    Compiling rustix v0.38.3
[INFO] [stderr]     Checking aho-corasick v1.0.2
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]    Compiling humansize v1.1.1
[INFO] [stderr]     Checking regex-syntax v0.7.4
[INFO] [stderr]    Compiling askama_escape v0.3.0
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]    Compiling serde_json v1.0.100
[INFO] [stderr]     Checking generic-array v0.14.7
[INFO] [stderr]    Compiling rustix v0.37.23
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking block-buffer v0.10.4
[INFO] [stderr]    Compiling tempfile v3.6.0
[INFO] [stderr]     Checking term_size v0.3.2
[INFO] [stderr]     Checking linux-raw-sys v0.3.8
[INFO] [stderr]     Checking itoa v1.0.8
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]    Compiling camino v1.1.4
[INFO] [stderr]     Checking ryu v1.0.14
[INFO] [stderr]     Checking bstr v0.2.17
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking nix v0.26.2
[INFO] [stderr]     Checking regex-automata v0.3.2
[INFO] [stderr]    Compiling serde_derive v1.0.171
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking is-terminal v0.4.9
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking termcolor v1.2.0
[INFO] [stderr]     Checking log v0.4.19
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking cpufeatures v0.2.9
[INFO] [stderr]     Checking unicode-segmentation v1.10.1
[INFO] [stderr]     Checking sha2 v0.10.7
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking rand_distr v0.2.2
[INFO] [stderr]     Checking similar v2.2.1
[INFO] [stderr]     Checking ctrlc v3.4.0
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking uuid v1.4.0
[INFO] [stderr]     Checking edit-distance v2.1.0
[INFO] [stderr]     Checking lexiclean v0.0.1
[INFO] [stderr]     Checking target v2.0.0
[INFO] [stderr]     Checking heck v0.4.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking str-distance v0.1.0
[INFO] [stderr]     Checking regex v1.9.1
[INFO] [stderr]     Checking env_logger v0.10.0
[INFO] [stderr]    Compiling snafu-derive v0.7.5
[INFO] [stderr]    Compiling strum_macros v0.24.3
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]     Checking strum v0.24.1
[INFO] [stderr]     Checking snafu v0.7.5
[INFO] [stderr]     Checking toml v0.5.11
[INFO] [stderr]     Checking just v1.14.0
[INFO] [stderr]     Checking askama_shared v0.9.1
[INFO] [stderr]    Compiling askama_derive v0.9.0
[INFO] [stderr]     Checking askama v0.9.0
[INFO] [stderr]     Checking plotly v0.6.0
[INFO] [stderr]     Checking xorword v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 01s
[INFO] running `Command { std: "docker" "inspect" "49b88e318fc3fac19be4ef09bc8237b42537e28ee1e4559e196c877bbed39958", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49b88e318fc3fac19be4ef09bc8237b42537e28ee1e4559e196c877bbed39958", kill_on_drop: false }`
[INFO] [stdout] 49b88e318fc3fac19be4ef09bc8237b42537e28ee1e4559e196c877bbed39958
[INFO] checking purnatag/xorword against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpurnatag%2Fxorword" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/purnatag/xorword 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/purnatag/xorword
[INFO] finished tweaking git repo https://github.com/purnatag/xorword
[INFO] tweaked toml for git repo https://github.com/purnatag/xorword written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/purnatag/xorword 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] 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] e25fe4042cf62307b04795023d614ffe79856c77f6613d8ee211ab14ae991385
[INFO] running `Command { std: "docker" "start" "-a" "e25fe4042cf62307b04795023d614ffe79856c77f6613d8ee211ab14ae991385", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e25fe4042cf62307b04795023d614ffe79856c77f6613d8ee211ab14ae991385", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e25fe4042cf62307b04795023d614ffe79856c77f6613d8ee211ab14ae991385", kill_on_drop: false }`
[INFO] [stdout] e25fe4042cf62307b04795023d614ffe79856c77f6613d8ee211ab14ae991385
[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] 7920bc4ec6e91cc5229ce144a62bb414e360c84551a2a9517863318cd6246bc7
[INFO] running `Command { std: "docker" "start" "-a" "7920bc4ec6e91cc5229ce144a62bb414e360c84551a2a9517863318cd6246bc7", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.25
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling serde v1.0.171
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling nom v5.1.3
[INFO] [stderr]     Checking getrandom v0.2.10
[INFO] [stderr]    Compiling rustix v0.38.3
[INFO] [stderr]    Compiling io-lifetimes v1.0.11
[INFO] [stderr]    Compiling rustversion v1.0.13
[INFO] [stderr]     Checking aho-corasick v1.0.2
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]    Compiling humansize v1.1.1
[INFO] [stderr]    Compiling rustix v0.37.23
[INFO] [stderr]    Compiling serde_json v1.0.100
[INFO] [stderr]    Compiling askama_escape v0.3.0
[INFO] [stderr]     Checking regex-syntax v0.7.4
[INFO] [stderr]     Checking generic-array v0.14.7
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking block-buffer v0.10.4
[INFO] [stderr]    Compiling tempfile v3.6.0
[INFO] [stderr]     Checking term_size v0.3.2
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]    Compiling camino v1.1.4
[INFO] [stderr]     Checking linux-raw-sys v0.3.8
[INFO] [stderr]     Checking ryu v1.0.14
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]     Checking itoa v1.0.8
[INFO] [stderr]     Checking nix v0.26.2
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking bstr v0.2.17
[INFO] [stderr]    Compiling serde_derive v1.0.171
[INFO] [stderr]     Checking is-terminal v0.4.9
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking unicode-segmentation v1.10.1
[INFO] [stderr]     Checking termcolor v1.2.0
[INFO] [stderr]     Checking regex-automata v0.3.2
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking log v0.4.19
[INFO] [stderr]     Checking cpufeatures v0.2.9
[INFO] [stderr]     Checking sha2 v0.10.7
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking similar v2.2.1
[INFO] [stderr]     Checking rand_distr v0.2.2
[INFO] [stderr]     Checking ctrlc v3.4.0
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking uuid v1.4.0
[INFO] [stderr]     Checking heck v0.4.1
[INFO] [stderr]     Checking edit-distance v2.1.0
[INFO] [stderr]     Checking lexiclean v0.0.1
[INFO] [stderr]     Checking target v2.0.0
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking str-distance v0.1.0
[INFO] [stderr]    Compiling strum_macros v0.24.3
[INFO] [stderr]    Compiling snafu-derive v0.7.5
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]     Checking regex v1.9.1
[INFO] [stderr]     Checking env_logger v0.10.0
[INFO] [stderr]     Checking strum v0.24.1
[INFO] [stderr]     Checking snafu v0.7.5
[INFO] [stderr]     Checking toml v0.5.11
[INFO] [stderr]     Checking just v1.14.0
[INFO] [stderr]     Checking askama_shared v0.9.1
[INFO] [stderr]    Compiling askama_derive v0.9.0
[INFO] [stderr]     Checking askama v0.9.0
[INFO] [stderr]     Checking plotly v0.6.0
[INFO] [stderr]     Checking xorword v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 54.46s
[INFO] running `Command { std: "docker" "inspect" "7920bc4ec6e91cc5229ce144a62bb414e360c84551a2a9517863318cd6246bc7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7920bc4ec6e91cc5229ce144a62bb414e360c84551a2a9517863318cd6246bc7", kill_on_drop: false }`
[INFO] [stdout] 7920bc4ec6e91cc5229ce144a62bb414e360c84551a2a9517863318cd6246bc7