[INFO] cloning repository https://github.com/ikatama/my-tessoku-book
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ikatama/my-tessoku-book" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fikatama%2Fmy-tessoku-book", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fikatama%2Fmy-tessoku-book'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e22491f3e2c81283856c62f1ab4c4f35ea0330b7
[INFO] checking ikatama/my-tessoku-book against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fikatama%2Fmy-tessoku-book" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ikatama/my-tessoku-book 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/ikatama/my-tessoku-book
[INFO] finished tweaking git repo https://github.com/ikatama/my-tessoku-book
[INFO] tweaked toml for git repo https://github.com/ikatama/my-tessoku-book written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/ikatama/my-tessoku-book 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]  Downloading crates ...
[INFO] [stderr]   Downloaded generic-array v0.13.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 6be70f785df3bfd9231f069fce4cd80861279b8c0c141c064e543af3aa20a174
[INFO] running `Command { std: "docker" "start" "-a" "6be70f785df3bfd9231f069fce4cd80861279b8c0c141c064e543af3aa20a174", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6be70f785df3bfd9231f069fce4cd80861279b8c0c141c064e543af3aa20a174", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6be70f785df3bfd9231f069fce4cd80861279b8c0c141c064e543af3aa20a174", kill_on_drop: false }`
[INFO] [stdout] 6be70f785df3bfd9231f069fce4cd80861279b8c0c141c064e543af3aa20a174
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 483bbae542b7672a3107c0ed40c27b76234d5a8ef71986c143f7789380882f6e
[INFO] running `Command { std: "docker" "start" "-a" "483bbae542b7672a3107c0ed40c27b76234d5a8ef71986c143f7789380882f6e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.68
[INFO] [stderr]    Compiling typenum v1.11.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.10
[INFO] [stderr]     Checking ppv-lite86 v0.2.6
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]    Compiling ndarray v0.13.0
[INFO] [stderr]     Checking regex-syntax v0.6.17
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]     Checking smallvec v1.2.0
[INFO] [stderr]     Checking matrixmultiply v0.2.3
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_pcg v0.2.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand_xoshiro v0.4.0
[INFO] [stderr]     Checking rand_hc v0.2.0
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking bitmaps v2.1.0
[INFO] [stderr]     Checking generic-array v0.13.2
[INFO] [stderr]     Checking rand_distr v0.2.2
[INFO] [stderr]     Checking sized-chunks v0.5.3
[INFO] [stderr]     Checking regex v1.3.6
[INFO] [stderr]     Checking nalgebra v0.20.0
[INFO] [stderr]     Checking im-rc v14.3.0
[INFO] [stderr]    Compiling num-derive v0.3.0
[INFO] [stderr]     Checking tessoku-book v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 18.39s
[INFO] running `Command { std: "docker" "inspect" "483bbae542b7672a3107c0ed40c27b76234d5a8ef71986c143f7789380882f6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "483bbae542b7672a3107c0ed40c27b76234d5a8ef71986c143f7789380882f6e", kill_on_drop: false }`
[INFO] [stdout] 483bbae542b7672a3107c0ed40c27b76234d5a8ef71986c143f7789380882f6e