[INFO] cloning repository https://github.com/VASHvic/serde_rayon_clap_test
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/VASHvic/serde_rayon_clap_test" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVASHvic%2Fserde_rayon_clap_test", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVASHvic%2Fserde_rayon_clap_test'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a8d5488ba2d666f756699da10933b0659fd6260c
[INFO] checking VASHvic/serde_rayon_clap_test against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVASHvic%2Fserde_rayon_clap_test" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/VASHvic/serde_rayon_clap_test 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/VASHvic/serde_rayon_clap_test
[INFO] finished tweaking git repo https://github.com/VASHvic/serde_rayon_clap_test
[INFO] tweaked toml for git repo https://github.com/VASHvic/serde_rayon_clap_test written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/VASHvic/serde_rayon_clap_test 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]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 8790f85aac34a06757bf5f84c16162a627e5b4433d80d99014dcd026c1a32556
[INFO] running `Command { std: "docker" "start" "-a" "8790f85aac34a06757bf5f84c16162a627e5b4433d80d99014dcd026c1a32556", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8790f85aac34a06757bf5f84c16162a627e5b4433d80d99014dcd026c1a32556", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8790f85aac34a06757bf5f84c16162a627e5b4433d80d99014dcd026c1a32556", kill_on_drop: false }`
[INFO] [stdout] 8790f85aac34a06757bf5f84c16162a627e5b4433d80d99014dcd026c1a32556
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 94d29f731f5bde3528e1e445601778b1bd5444583ec8712b74b37104bf1d8d54
[INFO] running `Command { std: "docker" "start" "-a" "94d29f731f5bde3528e1e445601778b1bd5444583ec8712b74b37104bf1d8d54", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.16
[INFO] [stderr]    Compiling memoffset v0.9.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.15
[INFO] [stderr]    Compiling serde v1.0.188
[INFO] [stderr]    Compiling rayon-core v1.11.0
[INFO] [stderr]     Checking unicode-width v0.1.10
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking either v1.9.0
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling syn v2.0.37
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking crossbeam-channel v0.5.8
[INFO] [stderr]     Checking crossbeam-deque v0.8.3
[INFO] [stderr]     Checking rayon v1.7.0
[INFO] [stderr]    Compiling serde_derive v1.0.188
[INFO] [stderr]     Checking serde_yaml v0.8.26
[INFO] [stderr]     Checking serde_json v1.0.107
[INFO] [stderr]     Checking serde_rayon_clap_test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.52s
[INFO] running `Command { std: "docker" "inspect" "94d29f731f5bde3528e1e445601778b1bd5444583ec8712b74b37104bf1d8d54", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94d29f731f5bde3528e1e445601778b1bd5444583ec8712b74b37104bf1d8d54", kill_on_drop: false }`
[INFO] [stdout] 94d29f731f5bde3528e1e445601778b1bd5444583ec8712b74b37104bf1d8d54
[INFO] checking VASHvic/serde_rayon_clap_test against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVASHvic%2Fserde_rayon_clap_test" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/VASHvic/serde_rayon_clap_test 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/VASHvic/serde_rayon_clap_test
[INFO] finished tweaking git repo https://github.com/VASHvic/serde_rayon_clap_test
[INFO] tweaked toml for git repo https://github.com/VASHvic/serde_rayon_clap_test written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/VASHvic/serde_rayon_clap_test 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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] ccfd48b9942d8b511fb20c0b6d66998b21fd04203ed43a48506f3ab496942c53
[INFO] running `Command { std: "docker" "start" "-a" "ccfd48b9942d8b511fb20c0b6d66998b21fd04203ed43a48506f3ab496942c53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ccfd48b9942d8b511fb20c0b6d66998b21fd04203ed43a48506f3ab496942c53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ccfd48b9942d8b511fb20c0b6d66998b21fd04203ed43a48506f3ab496942c53", kill_on_drop: false }`
[INFO] [stdout] ccfd48b9942d8b511fb20c0b6d66998b21fd04203ed43a48506f3ab496942c53
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 8c990fbb147843a788b135b5f575d28424b458913ae8d7374dc4e347d6997bb5
[INFO] running `Command { std: "docker" "start" "-a" "8c990fbb147843a788b135b5f575d28424b458913ae8d7374dc4e347d6997bb5", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.16
[INFO] [stderr]    Compiling memoffset v0.9.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.15
[INFO] [stderr]    Compiling serde v1.0.188
[INFO] [stderr]    Compiling rayon-core v1.11.0
[INFO] [stderr]     Checking unicode-width v0.1.10
[INFO] [stderr]     Checking either v1.9.0
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling syn v2.0.37
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking crossbeam-channel v0.5.8
[INFO] [stderr]     Checking crossbeam-deque v0.8.3
[INFO] [stderr]     Checking rayon v1.7.0
[INFO] [stderr]    Compiling serde_derive v1.0.188
[INFO] [stderr]     Checking serde_json v1.0.107
[INFO] [stderr]     Checking serde_yaml v0.8.26
[INFO] [stderr]     Checking serde_rayon_clap_test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.02s
[INFO] running `Command { std: "docker" "inspect" "8c990fbb147843a788b135b5f575d28424b458913ae8d7374dc4e347d6997bb5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c990fbb147843a788b135b5f575d28424b458913ae8d7374dc4e347d6997bb5", kill_on_drop: false }`
[INFO] [stdout] 8c990fbb147843a788b135b5f575d28424b458913ae8d7374dc4e347d6997bb5