[INFO] cloning repository https://github.com/mohanson/rare_duktape
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mohanson/rare_duktape" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmohanson%2Frare_duktape", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmohanson%2Frare_duktape'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a7a0db9cddf53befd348576f6f64bb337ce07b03
[INFO] checking mohanson/rare_duktape against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmohanson%2Frare_duktape" "/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/mohanson/rare_duktape 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/mohanson/rare_duktape
[INFO] finished tweaking git repo https://github.com/mohanson/rare_duktape
[INFO] tweaked toml for git repo https://github.com/mohanson/rare_duktape written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/mohanson/rare_duktape 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 git repository `https://github.com/nervosnetwork/ckb-vm`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded goblin v0.0.22
[INFO] [stderr]   Downloaded syn v0.15.42
[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] 1d4caf79cfe366b09eb002ff09c25a1a6d4383cef1372cc85678f7581c0c8890
[INFO] running `Command { std: "docker" "start" "-a" "1d4caf79cfe366b09eb002ff09c25a1a6d4383cef1372cc85678f7581c0c8890", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1d4caf79cfe366b09eb002ff09c25a1a6d4383cef1372cc85678f7581c0c8890", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d4caf79cfe366b09eb002ff09c25a1a6d4383cef1372cc85678f7581c0c8890", kill_on_drop: false }`
[INFO] [stdout] 1d4caf79cfe366b09eb002ff09c25a1a6d4383cef1372cc85678f7581c0c8890
[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] 5f9a1be1e18dccd8463178f1c96a9e177643e8b46e9ded4ae7b4b38e09f6320e
[INFO] running `Command { std: "docker" "start" "-a" "5f9a1be1e18dccd8463178f1c96a9e177643e8b46e9ded4ae7b4b38e09f6320e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling syn v0.15.42
[INFO] [stderr]    Compiling libc v0.2.60
[INFO] [stderr]    Compiling log v0.4.7
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]     Checking cfg-if v0.1.9
[INFO] [stderr]    Compiling cc v1.0.38
[INFO] [stderr]     Checking plain v0.2.3
[INFO] [stderr]     Checking ckb-vm-definitions v0.12.0-pre (https://github.com/nervosnetwork/ckb-vm#53ddfecb)
[INFO] [stderr]    Compiling scroll v0.9.2
[INFO] [stderr]    Compiling ckb-vm v0.12.0-pre (https://github.com/nervosnetwork/ckb-vm#53ddfecb)
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]    Compiling scroll_derive v0.9.5
[INFO] [stderr]     Checking goblin v0.0.22
[INFO] [stderr]     Checking rare_duktape v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.55s
[INFO] running `Command { std: "docker" "inspect" "5f9a1be1e18dccd8463178f1c96a9e177643e8b46e9ded4ae7b4b38e09f6320e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f9a1be1e18dccd8463178f1c96a9e177643e8b46e9ded4ae7b4b38e09f6320e", kill_on_drop: false }`
[INFO] [stdout] 5f9a1be1e18dccd8463178f1c96a9e177643e8b46e9ded4ae7b4b38e09f6320e
[INFO] checking mohanson/rare_duktape against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmohanson%2Frare_duktape" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mohanson/rare_duktape on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mohanson/rare_duktape
[INFO] finished tweaking git repo https://github.com/mohanson/rare_duktape
[INFO] tweaked toml for git repo https://github.com/mohanson/rare_duktape written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/mohanson/rare_duktape 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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ab8526fb66c705c79855d8a57933272bb0bef4ca3b45af8e689f9b5a56de20c4
[INFO] running `Command { std: "docker" "start" "-a" "ab8526fb66c705c79855d8a57933272bb0bef4ca3b45af8e689f9b5a56de20c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ab8526fb66c705c79855d8a57933272bb0bef4ca3b45af8e689f9b5a56de20c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab8526fb66c705c79855d8a57933272bb0bef4ca3b45af8e689f9b5a56de20c4", kill_on_drop: false }`
[INFO] [stdout] ab8526fb66c705c79855d8a57933272bb0bef4ca3b45af8e689f9b5a56de20c4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e168972dbf4e9015c86dcaecc698d5c680e00304c286a4fea4ac00b0f262748c
[INFO] running `Command { std: "docker" "start" "-a" "e168972dbf4e9015c86dcaecc698d5c680e00304c286a4fea4ac00b0f262748c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling syn v0.15.42
[INFO] [stderr]    Compiling libc v0.2.60
[INFO] [stderr]    Compiling log v0.4.7
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]     Checking cfg-if v0.1.9
[INFO] [stderr]    Compiling cc v1.0.38
[INFO] [stderr]     Checking plain v0.2.3
[INFO] [stderr]     Checking ckb-vm-definitions v0.12.0-pre (https://github.com/nervosnetwork/ckb-vm#53ddfecb)
[INFO] [stderr]    Compiling scroll v0.9.2
[INFO] [stderr]    Compiling ckb-vm v0.12.0-pre (https://github.com/nervosnetwork/ckb-vm#53ddfecb)
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]    Compiling scroll_derive v0.9.5
[INFO] [stderr]     Checking goblin v0.0.22
[INFO] [stderr]     Checking rare_duktape v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.24s
[INFO] running `Command { std: "docker" "inspect" "e168972dbf4e9015c86dcaecc698d5c680e00304c286a4fea4ac00b0f262748c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e168972dbf4e9015c86dcaecc698d5c680e00304c286a4fea4ac00b0f262748c", kill_on_drop: false }`
[INFO] [stdout] e168972dbf4e9015c86dcaecc698d5c680e00304c286a4fea4ac00b0f262748c