[INFO] fetching crate redoxfs 0.5.8...
[INFO] checking redoxfs-0.5.8 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate redoxfs 0.5.8 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate redoxfs 0.5.8 on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate redoxfs 0.5.8
[INFO] finished tweaking crates.io crate redoxfs 0.5.8
[INFO] tweaked toml for crates.io crate redoxfs 0.5.8 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate crates.io crate redoxfs 0.5.8 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded argon2 v0.3.4
[INFO] [stderr]   Downloaded range-tree v0.1.0
[INFO] [stderr]   Downloaded redox_simple_endian v0.3.0
[INFO] [stderr]   Downloaded page_size v0.4.2
[INFO] [stderr]   Downloaded zerocopy v0.6.4
[INFO] [stderr]   Downloaded redox_syscall v0.4.0
[INFO] [stderr]   Downloaded fuser v0.12.0
[INFO] [stderr]   Downloaded zerocopy-derive v0.6.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0ef176ff24e855307f4b463478aaacaf10307a3e78a081e302adc250150c49dd
[INFO] running `Command { std: "docker" "start" "-a" "0ef176ff24e855307f4b463478aaacaf10307a3e78a081e302adc250150c49dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0ef176ff24e855307f4b463478aaacaf10307a3e78a081e302adc250150c49dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ef176ff24e855307f4b463478aaacaf10307a3e78a081e302adc250150c49dd", kill_on_drop: false }`
[INFO] [stdout] 0ef176ff24e855307f4b463478aaacaf10307a3e78a081e302adc250150c49dd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6adcb9cc3450e381e233ffd38dc2eba03dde10ef8a9e65d6ed7d42402b6cc745
[INFO] running `Command { std: "docker" "start" "-a" "6adcb9cc3450e381e233ffd38dc2eba03dde10ef8a9e65d6ed7d42402b6cc745", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling proc-macro2 v1.0.66
[INFO] [stderr]    Compiling unicode-ident v1.0.11
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]     Checking memchr v2.6.3
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling unicode-xid v0.2.4
[INFO] [stderr]     Checking regex-syntax v0.7.5
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking log v0.4.20
[INFO] [stderr]    Compiling pkg-config v0.3.27
[INFO] [stderr]     Checking gimli v0.28.0
[INFO] [stderr]     Checking aho-corasick v1.0.5
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling fuser v0.12.0
[INFO] [stderr]    Compiling syn v2.0.31
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]     Checking object v0.32.1
[INFO] [stderr]     Checking miniz_oxide v0.7.1
[INFO] [stderr]     Checking generic-array v0.14.7
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking regex-automata v0.3.8
[INFO] [stderr]     Checking rustc-demangle v0.1.23
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking getrandom v0.2.10
[INFO] [stderr]     Checking block-buffer v0.10.4
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking cipher v0.3.0
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking page_size v0.4.2
[INFO] [stderr]     Checking blake2 v0.10.6
[INFO] [stderr]     Checking users v0.11.0
[INFO] [stderr]     Checking humantime v2.1.0
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]     Checking smallvec v1.11.0
[INFO] [stderr]     Checking addr2line v0.21.0
[INFO] [stderr]     Checking numtoa v0.1.0
[INFO] [stderr]    Compiling backtrace v0.3.69
[INFO] [stderr]     Checking termcolor v1.2.0
[INFO] [stderr]     Checking cpufeatures v0.2.9
[INFO] [stderr]     Checking argon2 v0.3.4
[INFO] [stderr]     Checking redox_syscall v0.4.0
[INFO] [stderr]     Checking aes v0.7.5
[INFO] [stderr]     Checking termion v1.5.6
[INFO] [stderr]     Checking uuid v1.4.1
[INFO] [stderr]     Checking time v0.1.45
[INFO] [stderr]     Checking seahash v4.1.0
[INFO] [stderr]     Checking redox_simple_endian v0.3.0
[INFO] [stderr]     Checking range-tree v0.1.0
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]     Checking regex v1.9.5
[INFO] [stderr]    Compiling zerocopy-derive v0.6.4
[INFO] [stderr]     Checking env_logger v0.9.3
[INFO] [stderr]     Checking zerocopy v0.6.4
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking redoxfs v0.5.8 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Vec` is imported redundantly
[INFO] [stdout]  --> src/allocator.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use alloc::vec::Vec;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Vec` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Vec` is imported redundantly
[INFO] [stdout]  --> src/filesystem.rs:2:36
[INFO] [stdout]   |
[INFO] [stdout] 2 | use alloc::{collections::VecDeque, vec::Vec};
[INFO] [stdout]   |                                    ^^^^^^^^
[INFO] [stdout]  --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Vec` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Vec` is imported redundantly
[INFO] [stdout]  --> src/transaction.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     vec::Vec,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]  --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Vec` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Vec` is imported redundantly
[INFO] [stdout]  --> src/allocator.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use alloc::vec::Vec;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Vec` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Vec` is imported redundantly
[INFO] [stdout]  --> src/filesystem.rs:2:36
[INFO] [stdout]   |
[INFO] [stdout] 2 | use alloc::{collections::VecDeque, vec::Vec};
[INFO] [stdout]   |                                    ^^^^^^^^
[INFO] [stdout]  --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Vec` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Vec` is imported redundantly
[INFO] [stdout]  --> src/transaction.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     vec::Vec,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]  --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Vec` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.56s
[INFO] running `Command { std: "docker" "inspect" "6adcb9cc3450e381e233ffd38dc2eba03dde10ef8a9e65d6ed7d42402b6cc745", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6adcb9cc3450e381e233ffd38dc2eba03dde10ef8a9e65d6ed7d42402b6cc745", kill_on_drop: false }`
[INFO] [stdout] 6adcb9cc3450e381e233ffd38dc2eba03dde10ef8a9e65d6ed7d42402b6cc745