[INFO] fetching crate filetrack 0.2.3...
[INFO] checking filetrack-0.2.3 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate filetrack 0.2.3 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate filetrack 0.2.3 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 filetrack 0.2.3
[INFO] finished tweaking crates.io crate filetrack 0.2.3
[INFO] tweaked toml for crates.io crate filetrack 0.2.3 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate crates.io crate filetrack 0.2.3 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 thiserror v1.0.49
[INFO] [stderr]   Downloaded thiserror-impl v1.0.49
[INFO] [stderr]   Downloaded semver v1.0.19
[INFO] [stderr]   Downloaded futures-timer v3.0.2
[INFO] [stderr]   Downloaded relative-path v1.9.0
[INFO] [stderr]   Downloaded regex-syntax v0.8.0
[INFO] [stderr]   Downloaded regex v1.10.0
[INFO] [stderr]   Downloaded regex-automata v0.4.0
[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] b154eba266f6e13e3d99dd8340c1ca7a6f62fac281dc1775e08eb3e59ea991e8
[INFO] running `Command { std: "docker" "start" "-a" "b154eba266f6e13e3d99dd8340c1ca7a6f62fac281dc1775e08eb3e59ea991e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b154eba266f6e13e3d99dd8340c1ca7a6f62fac281dc1775e08eb3e59ea991e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b154eba266f6e13e3d99dd8340c1ca7a6f62fac281dc1775e08eb3e59ea991e8", kill_on_drop: false }`
[INFO] [stdout] b154eba266f6e13e3d99dd8340c1ca7a6f62fac281dc1775e08eb3e59ea991e8
[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] 442c1972c2efd1fe4d7a4594c7d05e7130ec1d14e5d34f6db402129efbb75d0a
[INFO] running `Command { std: "docker" "start" "-a" "442c1972c2efd1fe4d7a4594c7d05e7130ec1d14e5d34f6db402129efbb75d0a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.68
[INFO] [stderr]    Compiling futures-core v0.3.28
[INFO] [stderr]    Compiling semver v1.0.19
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]    Compiling futures-channel v0.3.28
[INFO] [stderr]    Compiling futures-task v0.3.28
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]     Checking futures-sink v0.3.28
[INFO] [stderr]    Compiling memchr v2.6.4
[INFO] [stderr]    Compiling regex-syntax v0.8.0
[INFO] [stderr]     Checking futures-io v0.3.28
[INFO] [stderr]    Compiling serde v1.0.188
[INFO] [stderr]    Compiling thiserror v1.0.49
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling glob v0.3.1
[INFO] [stderr]    Compiling relative-path v1.9.0
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling aho-corasick v1.1.2
[INFO] [stderr]    Compiling rstest_macros v0.18.2
[INFO] [stderr]    Compiling syn v2.0.38
[INFO] [stderr]     Checking futures-timer v3.0.2
[INFO] [stderr]    Compiling regex-automata v0.4.0
[INFO] [stderr]    Compiling regex v1.10.0
[INFO] [stderr]    Compiling futures-macro v0.3.28
[INFO] [stderr]    Compiling serde_derive v1.0.188
[INFO] [stderr]    Compiling thiserror-impl v1.0.49
[INFO] [stderr]     Checking futures-executor v0.3.28
[INFO] [stderr]     Checking futures v0.3.28
[INFO] [stderr]     Checking rstest v0.18.2
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking filetrack v0.2.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 23.79s
[INFO] running `Command { std: "docker" "inspect" "442c1972c2efd1fe4d7a4594c7d05e7130ec1d14e5d34f6db402129efbb75d0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "442c1972c2efd1fe4d7a4594c7d05e7130ec1d14e5d34f6db402129efbb75d0a", kill_on_drop: false }`
[INFO] [stdout] 442c1972c2efd1fe4d7a4594c7d05e7130ec1d14e5d34f6db402129efbb75d0a
[INFO] checking filetrack-0.2.3 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate filetrack 0.2.3 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate filetrack 0.2.3 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 filetrack 0.2.3
[INFO] finished tweaking crates.io crate filetrack 0.2.3
[INFO] tweaked toml for crates.io crate filetrack 0.2.3 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate crates.io crate filetrack 0.2.3 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] ee98aa575755b190c4e5fb293cec38d2409b012fe76fc3163ef83992fd1b2d16
[INFO] running `Command { std: "docker" "start" "-a" "ee98aa575755b190c4e5fb293cec38d2409b012fe76fc3163ef83992fd1b2d16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ee98aa575755b190c4e5fb293cec38d2409b012fe76fc3163ef83992fd1b2d16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee98aa575755b190c4e5fb293cec38d2409b012fe76fc3163ef83992fd1b2d16", kill_on_drop: false }`
[INFO] [stdout] ee98aa575755b190c4e5fb293cec38d2409b012fe76fc3163ef83992fd1b2d16
[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] 3de01ec8125ff35142b599557a80ca6ea4e1ec94683574df76be4aaefdd98c64
[INFO] running `Command { std: "docker" "start" "-a" "3de01ec8125ff35142b599557a80ca6ea4e1ec94683574df76be4aaefdd98c64", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.68
[INFO] [stderr]    Compiling futures-core v0.3.28
[INFO] [stderr]    Compiling semver v1.0.19
[INFO] [stderr]    Compiling futures-task v0.3.28
[INFO] [stderr]    Compiling futures-channel v0.3.28
[INFO] [stderr]     Checking futures-sink v0.3.28
[INFO] [stderr]    Compiling memchr v2.6.4
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]    Compiling serde v1.0.188
[INFO] [stderr]    Compiling regex-syntax v0.8.0
[INFO] [stderr]     Checking futures-io v0.3.28
[INFO] [stderr]    Compiling thiserror v1.0.49
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling glob v0.3.1
[INFO] [stderr]    Compiling relative-path v1.9.0
[INFO] [stderr]    Compiling aho-corasick v1.1.2
[INFO] [stderr]    Compiling rstest_macros v0.18.2
[INFO] [stderr]     Checking futures-timer v3.0.2
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling syn v2.0.38
[INFO] [stderr]    Compiling regex-automata v0.4.0
[INFO] [stderr]    Compiling regex v1.10.0
[INFO] [stderr]    Compiling futures-macro v0.3.28
[INFO] [stderr]    Compiling serde_derive v1.0.188
[INFO] [stderr]    Compiling thiserror-impl v1.0.49
[INFO] [stderr]     Checking futures-executor v0.3.28
[INFO] [stderr]     Checking futures v0.3.28
[INFO] [stderr]     Checking rstest v0.18.2
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking filetrack v0.2.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 32.76s
[INFO] running `Command { std: "docker" "inspect" "3de01ec8125ff35142b599557a80ca6ea4e1ec94683574df76be4aaefdd98c64", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3de01ec8125ff35142b599557a80ca6ea4e1ec94683574df76be4aaefdd98c64", kill_on_drop: false }`
[INFO] [stdout] 3de01ec8125ff35142b599557a80ca6ea4e1ec94683574df76be4aaefdd98c64