[INFO] fetching crate voltorb 0.1.0...
[INFO] checking voltorb-0.1.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate voltorb 0.1.0 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate voltorb 0.1.0 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 crates.io crate voltorb 0.1.0
[INFO] finished tweaking crates.io crate voltorb 0.1.0
[INFO] tweaked toml for crates.io crate voltorb 0.1.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate crates.io crate voltorb 0.1.0 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded argh_shared v0.1.7
[INFO] [stderr]   Downloaded argh_derive v0.1.7
[INFO] [stderr]   Downloaded argh v0.1.7
[INFO] [stderr]   Downloaded boxy v0.1.0
[INFO] [stderr]   Downloaded syn v1.0.93
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 2d583466d9d9030faa20985d95218809ac260f487104eb69963be4494669d133
[INFO] running `Command { std: "docker" "start" "-a" "2d583466d9d9030faa20985d95218809ac260f487104eb69963be4494669d133", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2d583466d9d9030faa20985d95218809ac260f487104eb69963be4494669d133", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d583466d9d9030faa20985d95218809ac260f487104eb69963be4494669d133", kill_on_drop: false }`
[INFO] [stdout] 2d583466d9d9030faa20985d95218809ac260f487104eb69963be4494669d133
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 0148b2c55be257cde2e0061b2d87b2bfce9af0b2793373c0f7edca17574c0225
[INFO] running `Command { std: "docker" "start" "-a" "0148b2c55be257cde2e0061b2d87b2bfce9af0b2793373c0f7edca17574c0225", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.125
[INFO] [stderr]    Compiling proc-macro2 v1.0.38
[INFO] [stderr]    Compiling syn v1.0.93
[INFO] [stderr]    Compiling signal-hook v0.3.13
[INFO] [stderr]    Compiling argh_shared v0.1.7
[INFO] [stderr]     Checking boxy v0.1.0
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking getrandom v0.2.6
[INFO] [stderr]     Checking parking_lot_core v0.9.3
[INFO] [stderr]     Checking mio v0.8.3
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking parking_lot v0.12.0
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking signal-hook-mio v0.2.3
[INFO] [stderr]     Checking crossterm v0.23.2
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling enumflags2_derive v0.7.4
[INFO] [stderr]    Compiling argh_derive v0.1.7
[INFO] [stderr]     Checking enumflags2 v0.7.5
[INFO] [stderr]     Checking argh v0.1.7
[INFO] [stderr]     Checking voltorb v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.84s
[INFO] running `Command { std: "docker" "inspect" "0148b2c55be257cde2e0061b2d87b2bfce9af0b2793373c0f7edca17574c0225", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0148b2c55be257cde2e0061b2d87b2bfce9af0b2793373c0f7edca17574c0225", kill_on_drop: false }`
[INFO] [stdout] 0148b2c55be257cde2e0061b2d87b2bfce9af0b2793373c0f7edca17574c0225
[INFO] checking voltorb-0.1.0 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate voltorb 0.1.0 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate voltorb 0.1.0 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 crates.io crate voltorb 0.1.0
[INFO] finished tweaking crates.io crate voltorb 0.1.0
[INFO] tweaked toml for crates.io crate voltorb 0.1.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate crates.io crate voltorb 0.1.0 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] ed1b68bd77fd6eef46dff5c80f99bf6fdfd3e5a918179ea8a97760728db13ed3
[INFO] running `Command { std: "docker" "start" "-a" "ed1b68bd77fd6eef46dff5c80f99bf6fdfd3e5a918179ea8a97760728db13ed3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ed1b68bd77fd6eef46dff5c80f99bf6fdfd3e5a918179ea8a97760728db13ed3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed1b68bd77fd6eef46dff5c80f99bf6fdfd3e5a918179ea8a97760728db13ed3", kill_on_drop: false }`
[INFO] [stdout] ed1b68bd77fd6eef46dff5c80f99bf6fdfd3e5a918179ea8a97760728db13ed3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 584669c73c6069805bb307bef0267aef009ae528833073c7b38b25ad57a0c3cc
[INFO] running `Command { std: "docker" "start" "-a" "584669c73c6069805bb307bef0267aef009ae528833073c7b38b25ad57a0c3cc", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.125
[INFO] [stderr]    Compiling proc-macro2 v1.0.38
[INFO] [stderr]    Compiling syn v1.0.93
[INFO] [stderr]    Compiling signal-hook v0.3.13
[INFO] [stderr]    Compiling argh_shared v0.1.7
[INFO] [stderr]     Checking boxy v0.1.0
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking getrandom v0.2.6
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking mio v0.8.3
[INFO] [stderr]     Checking parking_lot_core v0.9.3
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking parking_lot v0.12.0
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking signal-hook-mio v0.2.3
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking crossterm v0.23.2
[INFO] [stderr]    Compiling argh_derive v0.1.7
[INFO] [stderr]    Compiling enumflags2_derive v0.7.4
[INFO] [stderr]     Checking enumflags2 v0.7.5
[INFO] [stderr]     Checking argh v0.1.7
[INFO] [stderr]     Checking voltorb v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.34s
[INFO] running `Command { std: "docker" "inspect" "584669c73c6069805bb307bef0267aef009ae528833073c7b38b25ad57a0c3cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "584669c73c6069805bb307bef0267aef009ae528833073c7b38b25ad57a0c3cc", kill_on_drop: false }`
[INFO] [stdout] 584669c73c6069805bb307bef0267aef009ae528833073c7b38b25ad57a0c3cc