[INFO] cloning repository https://github.com/mdbooth/passfs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mdbooth/passfs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmdbooth%2Fpassfs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmdbooth%2Fpassfs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] de5aea6ff81690fab362bc76b10c0b4786807bbf
[INFO] checking mdbooth/passfs against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmdbooth%2Fpassfs" "/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/mdbooth/passfs 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/mdbooth/passfs
[INFO] finished tweaking git repo https://github.com/mdbooth/passfs
[INFO] tweaked toml for git repo https://github.com/mdbooth/passfs written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/mdbooth/passfs 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 page_size v0.4.2
[INFO] [stderr]   Downloaded openat v0.1.21
[INFO] [stderr]   Downloaded fuser v0.7.0
[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] c9052ee2887ad7a89db405418f599afcf0069ee1a523333097ed18b563809eb8
[INFO] running `Command { std: "docker" "start" "-a" "c9052ee2887ad7a89db405418f599afcf0069ee1a523333097ed18b563809eb8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c9052ee2887ad7a89db405418f599afcf0069ee1a523333097ed18b563809eb8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c9052ee2887ad7a89db405418f599afcf0069ee1a523333097ed18b563809eb8", kill_on_drop: false }`
[INFO] [stdout] c9052ee2887ad7a89db405418f599afcf0069ee1a523333097ed18b563809eb8
[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] 93fffc9839084375af46af220d4b7986bdb64e38c3fbc1d087c2e37927ef3c4d
[INFO] running `Command { std: "docker" "start" "-a" "93fffc9839084375af46af220d4b7986bdb64e38c3fbc1d087c2e37927ef3c4d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling cc v1.0.67
[INFO] [stderr]     Checking gimli v0.24.0
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]     Checking rustc-demangle v0.1.19
[INFO] [stderr]     Checking object v0.24.0
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]    Compiling fuser v0.7.0
[INFO] [stderr]    Compiling backtrace v0.3.59
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking users v0.11.0
[INFO] [stderr]     Checking page_size v0.4.2
[INFO] [stderr]     Checking openat v0.1.21
[INFO] [stderr]     Checking colored v1.9.3
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking addr2line v0.15.1
[INFO] [stderr]     Checking simple_logger v1.11.0
[INFO] [stderr]     Checking passfs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `fuser` is imported redundantly
[INFO] [stdout]   --> src/lib.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     self, FileAttr, FileType, Filesystem, ReplyAttr, ReplyCreate, ReplyData, ReplyDirectory,
[INFO] [stdout]    |     ^^^^ the item `fuser` is already defined by prelude
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `openat` is imported redundantly
[INFO] [stdout]   --> src/lib.rs:22:14
[INFO] [stdout]    |
[INFO] [stdout] 22 | use openat::{self, Dir, DirIter, SimpleType};
[INFO] [stdout]    |              ^^^^ the item `openat` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `fuser` is imported redundantly
[INFO] [stdout]   --> src/lib.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     self, FileAttr, FileType, Filesystem, ReplyAttr, ReplyCreate, ReplyData, ReplyDirectory,
[INFO] [stdout]    |     ^^^^ the item `fuser` is already defined by prelude
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `openat` is imported redundantly
[INFO] [stdout]   --> src/lib.rs:22:14
[INFO] [stdout]    |
[INFO] [stdout] 22 | use openat::{self, Dir, DirIter, SimpleType};
[INFO] [stdout]    |              ^^^^ the item `openat` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.78s
[INFO] running `Command { std: "docker" "inspect" "93fffc9839084375af46af220d4b7986bdb64e38c3fbc1d087c2e37927ef3c4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93fffc9839084375af46af220d4b7986bdb64e38c3fbc1d087c2e37927ef3c4d", kill_on_drop: false }`
[INFO] [stdout] 93fffc9839084375af46af220d4b7986bdb64e38c3fbc1d087c2e37927ef3c4d
[INFO] checking mdbooth/passfs against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmdbooth%2Fpassfs" "/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/mdbooth/passfs 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/mdbooth/passfs
[INFO] finished tweaking git repo https://github.com/mdbooth/passfs
[INFO] tweaked toml for git repo https://github.com/mdbooth/passfs written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/mdbooth/passfs 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-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] fd2e3f0a915dbd2892e538ff10dc05dddc0c6506b2c3503bbf827046abba25a1
[INFO] running `Command { std: "docker" "start" "-a" "fd2e3f0a915dbd2892e538ff10dc05dddc0c6506b2c3503bbf827046abba25a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fd2e3f0a915dbd2892e538ff10dc05dddc0c6506b2c3503bbf827046abba25a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd2e3f0a915dbd2892e538ff10dc05dddc0c6506b2c3503bbf827046abba25a1", kill_on_drop: false }`
[INFO] [stdout] fd2e3f0a915dbd2892e538ff10dc05dddc0c6506b2c3503bbf827046abba25a1
[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] d50fc10beb1fd8edf3fc71eb43b3cdbf2fa0f8dbd1d7a9769501b789dd5669b2
[INFO] running `Command { std: "docker" "start" "-a" "d50fc10beb1fd8edf3fc71eb43b3cdbf2fa0f8dbd1d7a9769501b789dd5669b2", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling cc v1.0.67
[INFO] [stderr]     Checking gimli v0.24.0
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]     Checking object v0.24.0
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]     Checking rustc-demangle v0.1.19
[INFO] [stderr]    Compiling fuser v0.7.0
[INFO] [stderr]    Compiling backtrace v0.3.59
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking page_size v0.4.2
[INFO] [stderr]     Checking users v0.11.0
[INFO] [stderr]     Checking openat v0.1.21
[INFO] [stderr]     Checking colored v1.9.3
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking addr2line v0.15.1
[INFO] [stderr]     Checking simple_logger v1.11.0
[INFO] [stderr]     Checking passfs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `fuser` is imported redundantly
[INFO] [stdout]   --> src/lib.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     self, FileAttr, FileType, Filesystem, ReplyAttr, ReplyCreate, ReplyData, ReplyDirectory,
[INFO] [stdout]    |     ^^^^ the item `fuser` is already defined by prelude
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `openat` is imported redundantly
[INFO] [stdout]   --> src/lib.rs:22:14
[INFO] [stdout]    |
[INFO] [stdout] 22 | use openat::{self, Dir, DirIter, SimpleType};
[INFO] [stdout]    |              ^^^^ the item `openat` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `fuser` is imported redundantly
[INFO] [stdout]   --> src/lib.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     self, FileAttr, FileType, Filesystem, ReplyAttr, ReplyCreate, ReplyData, ReplyDirectory,
[INFO] [stdout]    |     ^^^^ the item `fuser` is already defined by prelude
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `openat` is imported redundantly
[INFO] [stdout]   --> src/lib.rs:22:14
[INFO] [stdout]    |
[INFO] [stdout] 22 | use openat::{self, Dir, DirIter, SimpleType};
[INFO] [stdout]    |              ^^^^ the item `openat` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.61s
[INFO] running `Command { std: "docker" "inspect" "d50fc10beb1fd8edf3fc71eb43b3cdbf2fa0f8dbd1d7a9769501b789dd5669b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d50fc10beb1fd8edf3fc71eb43b3cdbf2fa0f8dbd1d7a9769501b789dd5669b2", kill_on_drop: false }`
[INFO] [stdout] d50fc10beb1fd8edf3fc71eb43b3cdbf2fa0f8dbd1d7a9769501b789dd5669b2