[INFO] fetching crate tree_magic_fork 0.2.2...
[INFO] checking tree_magic_fork-0.2.2 against beta-2021-10-15 for beta-1.56-3
[INFO] extracting crate tree_magic_fork 0.2.2 into /workspace/builds/worker-42/source
[INFO] validating manifest of crates.io crate tree_magic_fork 0.2.2 on toolchain beta-2021-10-15
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tree_magic_fork 0.2.2
[INFO] finished tweaking crates.io crate tree_magic_fork 0.2.2
[INFO] tweaked toml for crates.io crate tree_magic_fork 0.2.2 written to /workspace/builds/worker-42/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-10-15" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2730880907be1cff50cd3d9212a329292a63dcadca59e7bf1974fdfd88053098
[INFO] running `Command { std: "docker" "start" "-a" "2730880907be1cff50cd3d9212a329292a63dcadca59e7bf1974fdfd88053098", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2730880907be1cff50cd3d9212a329292a63dcadca59e7bf1974fdfd88053098", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2730880907be1cff50cd3d9212a329292a63dcadca59e7bf1974fdfd88053098", kill_on_drop: false }`
[INFO] [stdout] 2730880907be1cff50cd3d9212a329292a63dcadca59e7bf1974fdfd88053098
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-10-15" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 18ff790429b4506b9a404181d503210b037f3cad9a64f0e42f318fec87ccf130
[INFO] running `Command { std: "docker" "start" "-a" "18ff790429b4506b9a404181d503210b037f3cad9a64f0e42f318fec87ccf130", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]    Compiling libc v0.2.103
[INFO] [stderr]     Checking ordermap v0.3.5
[INFO] [stderr]     Checking fixedbitset v0.1.9
[INFO] [stderr]     Checking nom v2.2.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking lock_api v0.2.0
[INFO] [stderr]    Compiling parking_lot_core v0.5.0
[INFO] [stderr]    Compiling parking_lot v0.8.0
[INFO] [stderr]     Checking smallvec v0.6.14
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking petgraph v0.4.13
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking tree_magic_fork v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/lib.rs:118:1
[INFO] [stdout]     |
[INFO] [stdout] 118 | /// Mappings between modules and supported mimes (by index in table above)
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> src/fdo_magic/builtin.rs:14:1
[INFO] [stdout]    |
[INFO] [stdout] 14 | /// Preload alias list
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations
[INFO] [stdout]    |
[INFO] [stdout]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> src/fdo_magic/builtin.rs:21:1
[INFO] [stdout]    |
[INFO] [stdout] 21 | /// Load magic file before anything else.
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations
[INFO] [stdout]    |
[INFO] [stdout]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> src/fdo_magic/sys.rs:18:1
[INFO] [stdout]    |
[INFO] [stdout] 18 | /// Preload alias list
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations
[INFO] [stdout]    |
[INFO] [stdout]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> src/fdo_magic/sys.rs:25:1
[INFO] [stdout]    |
[INFO] [stdout] 25 | / /// Load magic file before anything else.
[INFO] [stdout] 26 | | /// sys_fdo_magic always disabled on Windows.
[INFO] [stdout]    | |_--------------------------------------------^
[INFO] [stdout]    |   |
[INFO] [stdout]    |   rustdoc does not generate documentation for macro invocations
[INFO] [stdout]    |
[INFO] [stdout]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/fdo_magic/mod.rs:186:5
[INFO] [stdout]     |
[INFO] [stdout] 186 |     /// Singular magic entry
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations
[INFO] [stdout]     |
[INFO] [stdout]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/fdo_magic/mod.rs:198:5
[INFO] [stdout]     |
[INFO] [stdout] 198 | /     /// Converts a magic file given as a &[u8] array
[INFO] [stdout] 199 | |     /// to a vector of MagicEntry structs
[INFO] [stdout]     | |_____------------------------------------^
[INFO] [stdout]     |       |
[INFO] [stdout]     |       rustdoc does not generate documentation for macro invocations
[INFO] [stdout]     |
[INFO] [stdout]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/fdo_magic/mod.rs:240:88
[INFO] [stdout]     |
[INFO] [stdout] 240 |         let tuplevec = from_u8_to_tuple_vec(b).to_result().map_err(|e| e.to_string())?;;
[INFO] [stdout]     |                                                                                        ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/lib.rs:118:1
[INFO] [stdout]     |
[INFO] [stdout] 118 | /// Mappings between modules and supported mimes (by index in table above)
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> src/fdo_magic/builtin.rs:14:1
[INFO] [stdout]    |
[INFO] [stdout] 14 | /// Preload alias list
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations
[INFO] [stdout]    |
[INFO] [stdout]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> src/fdo_magic/builtin.rs:21:1
[INFO] [stdout]    |
[INFO] [stdout] 21 | /// Load magic file before anything else.
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations
[INFO] [stdout]    |
[INFO] [stdout]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> src/fdo_magic/sys.rs:18:1
[INFO] [stdout]    |
[INFO] [stdout] 18 | /// Preload alias list
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations
[INFO] [stdout]    |
[INFO] [stdout]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> src/fdo_magic/sys.rs:25:1
[INFO] [stdout]    |
[INFO] [stdout] 25 | / /// Load magic file before anything else.
[INFO] [stdout] 26 | | /// sys_fdo_magic always disabled on Windows.
[INFO] [stdout]    | |_--------------------------------------------^
[INFO] [stdout]    |   |
[INFO] [stdout]    |   rustdoc does not generate documentation for macro invocations
[INFO] [stdout]    |
[INFO] [stdout]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/fdo_magic/mod.rs:186:5
[INFO] [stdout]     |
[INFO] [stdout] 186 |     /// Singular magic entry
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations
[INFO] [stdout]     |
[INFO] [stdout]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/fdo_magic/mod.rs:198:5
[INFO] [stdout]     |
[INFO] [stdout] 198 | /     /// Converts a magic file given as a &[u8] array
[INFO] [stdout] 199 | |     /// to a vector of MagicEntry structs
[INFO] [stdout]     | |_____------------------------------------^
[INFO] [stdout]     |       |
[INFO] [stdout]     |       rustdoc does not generate documentation for macro invocations
[INFO] [stdout]     |
[INFO] [stdout]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/fdo_magic/mod.rs:240:88
[INFO] [stdout]     |
[INFO] [stdout] 240 |         let tuplevec = from_u8_to_tuple_vec(b).to_result().map_err(|e| e.to_string())?;;
[INFO] [stdout]     |                                                                                        ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0463]: can't find crate for `tree_magic`
[INFO] [stdout]  --> benches/match_u8.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     extern crate tree_magic;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tree_magic_fork` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0463]: can't find crate for `tree_magic`
[INFO] [stdout]  --> benches/from_u8.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     extern crate tree_magic;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "18ff790429b4506b9a404181d503210b037f3cad9a64f0e42f318fec87ccf130", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18ff790429b4506b9a404181d503210b037f3cad9a64f0e42f318fec87ccf130", kill_on_drop: false }`
[INFO] [stdout] 18ff790429b4506b9a404181d503210b037f3cad9a64f0e42f318fec87ccf130
