[INFO] fetching crate cargo-diet 1.2.7...
[INFO] checking cargo-diet-1.2.7 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate cargo-diet 1.2.7 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate cargo-diet 1.2.7 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 cargo-diet 1.2.7
[INFO] finished tweaking crates.io crate cargo-diet 1.2.7
[INFO] tweaked toml for crates.io crate cargo-diet 1.2.7 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate cargo-diet 1.2.7 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]  Downloading crates ...
[INFO] [stderr]   Downloaded xattr v0.2.3
[INFO] [stderr]   Downloaded termion v1.5.6
[INFO] [stderr]   Downloaded termsize v0.1.6
[INFO] [stderr]   Downloaded redox_termios v0.1.2
[INFO] [stderr]   Downloaded serde v1.0.175
[INFO] [stderr]   Downloaded utf8-width v0.1.6
[INFO] [stderr]   Downloaded ascii_table v4.0.2
[INFO] [stderr]   Downloaded locate-cargo-manifest v0.2.2
[INFO] [stderr]   Downloaded numtoa v0.1.0
[INFO] [stderr]   Downloaded argh_shared v0.1.10
[INFO] [stderr]   Downloaded filetime v0.2.21
[INFO] [stderr]   Downloaded globset v0.4.11
[INFO] [stderr]   Downloaded criner-waste-report v0.1.5
[INFO] [stderr]   Downloaded quick-error v2.0.1
[INFO] [stderr]   Downloaded argh_derive v0.1.10
[INFO] [stderr]   Downloaded argh v0.1.10
[INFO] [stderr]   Downloaded quote v1.0.32
[INFO] [stderr]   Downloaded byte-unit v4.0.19
[INFO] [stderr]   Downloaded toml v0.7.6
[INFO] [stderr]   Downloaded flate2 v1.0.26
[INFO] [stderr]   Downloaded aho-corasick v1.0.2
[INFO] [stderr]   Downloaded regex-syntax v0.7.4
[INFO] [stderr]   Downloaded bstr v1.6.0
[INFO] [stderr]   Downloaded regex-automata v0.3.3
[INFO] [stderr]   Downloaded serde_derive v1.0.175
[INFO] [stderr]   Downloaded regex v1.9.1
[INFO] [stderr]   Downloaded syn v2.0.27
[INFO] [stderr]   Downloaded difference v2.0.0
[INFO] [stderr]   Downloaded winnow v0.5.0
[INFO] [stderr]   Downloaded bytesize v1.2.0
[INFO] [stderr]   Downloaded tar v0.4.39
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 11d813b6651b5eb8d8c77185f4b45489608159cd40e87e3fa09abbb71e8bdd94
[INFO] running `Command { std: "docker" "start" "-a" "11d813b6651b5eb8d8c77185f4b45489608159cd40e87e3fa09abbb71e8bdd94", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "11d813b6651b5eb8d8c77185f4b45489608159cd40e87e3fa09abbb71e8bdd94", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11d813b6651b5eb8d8c77185f4b45489608159cd40e87e3fa09abbb71e8bdd94", kill_on_drop: false }`
[INFO] [stdout] 11d813b6651b5eb8d8c77185f4b45489608159cd40e87e3fa09abbb71e8bdd94
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] a551193679018383810d7ba92a7a3eb0f2c6aaf14efc4b7a538266d603c1a070
[INFO] running `Command { std: "docker" "start" "-a" "a551193679018383810d7ba92a7a3eb0f2c6aaf14efc4b7a538266d603c1a070", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.175
[INFO] [stderr]     Checking hashbrown v0.14.0
[INFO] [stderr]     Checking equivalent v1.0.1
[INFO] [stderr]     Checking regex-syntax v0.7.4
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking winnow v0.5.0
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling argh_shared v0.1.10
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]     Checking utf8-width v0.1.6
[INFO] [stderr]     Checking aho-corasick v1.0.2
[INFO] [stderr]     Checking bstr v1.6.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling quote v1.0.32
[INFO] [stderr]     Checking filetime v0.2.21
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking xattr v0.2.3
[INFO] [stderr]     Checking json v0.12.4
[INFO] [stderr]    Compiling serde_derive v1.0.175
[INFO] [stderr]     Checking miniz_oxide v0.7.1
[INFO] [stderr]     Checking termsize v0.1.6
[INFO] [stderr]     Checking ascii_table v4.0.2
[INFO] [stderr]     Checking difference v2.0.0
[INFO] [stderr]     Checking tar v0.4.39
[INFO] [stderr]     Checking bytesize v1.2.0
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking quick-error v2.0.1
[INFO] [stderr]     Checking locate-cargo-manifest v0.2.2
[INFO] [stderr]     Checking flate2 v1.0.26
[INFO] [stderr]     Checking indexmap v2.0.0
[INFO] [stderr]     Checking regex-automata v0.3.3
[INFO] [stderr]    Compiling argh_derive v0.1.10
[INFO] [stderr]     Checking toml_datetime v0.6.3
[INFO] [stderr]     Checking serde_spanned v0.6.3
[INFO] [stderr]     Checking byte-unit v4.0.19
[INFO] [stderr]     Checking toml_edit v0.19.14
[INFO] [stderr]     Checking argh v0.1.10
[INFO] [stderr]     Checking regex v1.9.1
[INFO] [stderr]     Checking globset v0.4.11
[INFO] [stderr]     Checking toml v0.7.6
[INFO] [stderr]     Checking criner-waste-report v0.1.5
[INFO] [stderr]     Checking cargo-diet v1.2.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.97s
[INFO] running `Command { std: "docker" "inspect" "a551193679018383810d7ba92a7a3eb0f2c6aaf14efc4b7a538266d603c1a070", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a551193679018383810d7ba92a7a3eb0f2c6aaf14efc4b7a538266d603c1a070", kill_on_drop: false }`
[INFO] [stdout] a551193679018383810d7ba92a7a3eb0f2c6aaf14efc4b7a538266d603c1a070
[INFO] checking cargo-diet-1.2.7 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate cargo-diet 1.2.7 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate cargo-diet 1.2.7 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 cargo-diet 1.2.7
[INFO] finished tweaking crates.io crate cargo-diet 1.2.7
[INFO] tweaked toml for crates.io crate cargo-diet 1.2.7 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate crates.io crate cargo-diet 1.2.7 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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 6a93cc5fd8da8b5a98b3b66f9ee8b19cce3720a0cd965c75201e78ca1ebc2aa1
[INFO] running `Command { std: "docker" "start" "-a" "6a93cc5fd8da8b5a98b3b66f9ee8b19cce3720a0cd965c75201e78ca1ebc2aa1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6a93cc5fd8da8b5a98b3b66f9ee8b19cce3720a0cd965c75201e78ca1ebc2aa1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a93cc5fd8da8b5a98b3b66f9ee8b19cce3720a0cd965c75201e78ca1ebc2aa1", kill_on_drop: false }`
[INFO] [stdout] 6a93cc5fd8da8b5a98b3b66f9ee8b19cce3720a0cd965c75201e78ca1ebc2aa1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 2cf2a3d14b2561069513d228ebc7f25255461ad2e735893ce297748f1b8af2bf
[INFO] running `Command { std: "docker" "start" "-a" "2cf2a3d14b2561069513d228ebc7f25255461ad2e735893ce297748f1b8af2bf", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.175
[INFO] [stderr]     Checking regex-syntax v0.7.4
[INFO] [stderr]     Checking equivalent v1.0.1
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking hashbrown v0.14.0
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]     Checking winnow v0.5.0
[INFO] [stderr]    Compiling argh_shared v0.1.10
[INFO] [stderr]     Checking aho-corasick v1.0.2
[INFO] [stderr]     Checking bstr v1.6.0
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]     Checking json v0.12.4
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling quote v1.0.32
[INFO] [stderr]     Checking xattr v0.2.3
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking filetime v0.2.21
[INFO] [stderr]     Checking utf8-width v0.1.6
[INFO] [stderr]     Checking miniz_oxide v0.7.1
[INFO] [stderr]    Compiling serde_derive v1.0.175
[INFO] [stderr]     Checking termsize v0.1.6
[INFO] [stderr]     Checking bytesize v1.2.0
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking difference v2.0.0
[INFO] [stderr]     Checking tar v0.4.39
[INFO] [stderr]     Checking ascii_table v4.0.2
[INFO] [stderr]     Checking quick-error v2.0.1
[INFO] [stderr]     Checking locate-cargo-manifest v0.2.2
[INFO] [stderr]     Checking flate2 v1.0.26
[INFO] [stderr]     Checking indexmap v2.0.0
[INFO] [stderr]     Checking regex-automata v0.3.3
[INFO] [stderr]    Compiling argh_derive v0.1.10
[INFO] [stderr]     Checking toml_datetime v0.6.3
[INFO] [stderr]     Checking serde_spanned v0.6.3
[INFO] [stderr]     Checking byte-unit v4.0.19
[INFO] [stderr]     Checking toml_edit v0.19.14
[INFO] [stderr]     Checking argh v0.1.10
[INFO] [stderr]     Checking regex v1.9.1
[INFO] [stderr]     Checking globset v0.4.11
[INFO] [stderr]     Checking toml v0.7.6
[INFO] [stderr]     Checking criner-waste-report v0.1.5
[INFO] [stderr]     Checking cargo-diet v1.2.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.05s
[INFO] running `Command { std: "docker" "inspect" "2cf2a3d14b2561069513d228ebc7f25255461ad2e735893ce297748f1b8af2bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2cf2a3d14b2561069513d228ebc7f25255461ad2e735893ce297748f1b8af2bf", kill_on_drop: false }`
[INFO] [stdout] 2cf2a3d14b2561069513d228ebc7f25255461ad2e735893ce297748f1b8af2bf