[INFO] fetching crate ff-find 0.24.11...
[INFO] checking ff-find-0.24.11 against try#72f88fc4e9458f89516a0b8b0868f3718aec5b47 for pr-74989
[INFO] extracting crate ff-find 0.24.11 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate ff-find 0.24.11 on toolchain 72f88fc4e9458f89516a0b8b0868f3718aec5b47
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+72f88fc4e9458f89516a0b8b0868f3718aec5b47" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ff-find 0.24.11
[INFO] finished tweaking crates.io crate ff-find 0.24.11
[INFO] tweaked toml for crates.io crate ff-find 0.24.11 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate ff-find 0.24.11 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+72f88fc4e9458f89516a0b8b0868f3718aec5b47" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ignore v0.4.10
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+72f88fc4e9458f89516a0b8b0868f3718aec5b47" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 648dd2dae366f1badb5bec3cb192c3ce5edc94d9f3e04f2494f425767d2929d7
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "648dd2dae366f1badb5bec3cb192c3ce5edc94d9f3e04f2494f425767d2929d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "648dd2dae366f1badb5bec3cb192c3ce5edc94d9f3e04f2494f425767d2929d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "648dd2dae366f1badb5bec3cb192c3ce5edc94d9f3e04f2494f425767d2929d7", kill_on_drop: false }`
[INFO] [stdout] 648dd2dae366f1badb5bec3cb192c3ce5edc94d9f3e04f2494f425767d2929d7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+72f88fc4e9458f89516a0b8b0868f3718aec5b47" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b40c2809ae696f5e4fc443174b0a9e65fee90aa1314f3b5724436e771cc74c00
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "b40c2809ae696f5e4fc443174b0a9e65fee90aa1314f3b5724436e771cc74c00", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling bitflags v1.2.0
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling unicode-width v0.1.6
[INFO] [stderr]    Compiling getrandom v0.1.12
[INFO] [stderr]    Compiling vec_map v0.8.1
[INFO] [stderr]    Compiling nix v0.15.0
[INFO] [stderr]     Checking same-file v1.0.5
[INFO] [stderr]     Checking ppv-lite86 v0.2.5
[INFO] [stderr]     Checking arc-swap v0.4.3
[INFO] [stderr]     Checking remove_dir_all v0.5.2
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking glob v0.3.0
[INFO] [stderr]     Checking diff v0.1.11
[INFO] [stderr]     Checking walkdir v2.2.9
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]     Checking bstr v0.2.8
[INFO] [stderr]     Checking aho-corasick v0.6.10
[INFO] [stderr]     Checking regex v1.3.1
[INFO] [stderr]     Checking crossbeam-channel v0.3.9
[INFO] [stderr]     Checking c2-chacha v0.2.2
[INFO] [stderr]     Checking globset v0.4.4
[INFO] [stderr]     Checking ignore v0.4.10
[INFO] [stderr]    Compiling atty v0.2.13
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]     Checking signal-hook-registry v1.1.1
[INFO] [stderr]     Checking num_cpus v1.10.1
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking signal-hook v0.1.10
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]     Checking rand v0.7.2
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]    Compiling ff-find v0.24.11 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/exec/nonblock.rs:67:69
[INFO] [stdout]    |
[INFO] [stdout] 67 |                 return Err(io::Error::new(io::ErrorKind::Other, err.description()));
[INFO] [stdout]    |                                                                     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/exec/nonblock.rs:126:69
[INFO] [stdout]     |
[INFO] [stdout] 126 |                 return Err(io::Error::new(io::ErrorKind::Other, err.description()));
[INFO] [stdout]     |                                                                     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]   --> src/filter/filetype.rs:14:22
[INFO] [stdout]    |
[INFO] [stdout] 14 |         match symbol.to_ascii_lowercase().as_bytes() {
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unstable_name_collisions)]` on by default
[INFO] [stdout]    = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]    = help: call with fully qualified syntax `foss::FckOsStrSck::to_ascii_lowercase(...)` to keep using the current method
[INFO] [stdout]    = help: add `#![feature(osstring_ascii)]` to the crate attributes to enable `std::ffi::OsStr::to_ascii_lowercase`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/filter/parser.rs:154:25
[INFO] [stdout]     |
[INFO] [stdout] 154 |             match token.to_ascii_lowercase().as_bytes() {
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `foss::FckOsStrSck::to_ascii_lowercase(...)` to keep using the current method
[INFO] [stdout]     = help: add `#![feature(osstring_ascii)]` to the crate attributes to enable `std::ffi::OsStr::to_ascii_lowercase`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/filter/parser.rs:194:25
[INFO] [stdout]     |
[INFO] [stdout] 194 |             match token.to_ascii_lowercase().as_bytes() {
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `foss::FckOsStrSck::to_ascii_lowercase(...)` to keep using the current method
[INFO] [stdout]     = help: add `#![feature(osstring_ascii)]` to the crate attributes to enable `std::ffi::OsStr::to_ascii_lowercase`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/lscolors/src/lib.rs:294:51
[INFO] [stdout]     |
[INFO] [stdout] 294 |         let filename = path.as_ref().file_name()?.to_ascii_lowercase();
[INFO] [stdout]     |                                                   ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `foss::FckOsStrSck::to_ascii_lowercase(...)` to keep using the current method
[INFO] [stdout]     = help: add `#![feature(osstring_ascii)]` to the crate attributes to enable `std::ffi::OsStr::to_ascii_lowercase`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/exec/nonblock.rs:67:69
[INFO] [stdout]    |
[INFO] [stdout] 67 |                 return Err(io::Error::new(io::ErrorKind::Other, err.description()));
[INFO] [stdout]    |                                                                     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/exec/nonblock.rs:126:69
[INFO] [stdout]     |
[INFO] [stdout] 126 |                 return Err(io::Error::new(io::ErrorKind::Other, err.description()));
[INFO] [stdout]     |                                                                     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]   --> src/filter/filetype.rs:14:22
[INFO] [stdout]    |
[INFO] [stdout] 14 |         match symbol.to_ascii_lowercase().as_bytes() {
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unstable_name_collisions)]` on by default
[INFO] [stdout]    = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]    = help: call with fully qualified syntax `foss::FckOsStrSck::to_ascii_lowercase(...)` to keep using the current method
[INFO] [stdout]    = help: add `#![feature(osstring_ascii)]` to the crate attributes to enable `std::ffi::OsStr::to_ascii_lowercase`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/filter/parser.rs:154:25
[INFO] [stdout]     |
[INFO] [stdout] 154 |             match token.to_ascii_lowercase().as_bytes() {
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `foss::FckOsStrSck::to_ascii_lowercase(...)` to keep using the current method
[INFO] [stdout]     = help: add `#![feature(osstring_ascii)]` to the crate attributes to enable `std::ffi::OsStr::to_ascii_lowercase`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/filter/parser.rs:194:25
[INFO] [stdout]     |
[INFO] [stdout] 194 |             match token.to_ascii_lowercase().as_bytes() {
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `foss::FckOsStrSck::to_ascii_lowercase(...)` to keep using the current method
[INFO] [stdout]     = help: add `#![feature(osstring_ascii)]` to the crate attributes to enable `std::ffi::OsStr::to_ascii_lowercase`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/lscolors/src/lib.rs:294:51
[INFO] [stdout]     |
[INFO] [stdout] 294 |         let filename = path.as_ref().file_name()?.to_ascii_lowercase();
[INFO] [stdout]     |                                                   ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `foss::FckOsStrSck::to_ascii_lowercase(...)` to keep using the current method
[INFO] [stdout]     = help: add `#![feature(osstring_ascii)]` to the crate attributes to enable `std::ffi::OsStr::to_ascii_lowercase`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ff-find`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name ff src/main.rs --error-format=json --json=diagnostic-rendered-ansi --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 --test -C metadata=2c456fcf804c9f0b -C extra-filename=-2c456fcf804c9f0b --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern aho_corasick=/opt/rustwide/target/debug/deps/libaho_corasick-3d2f6183a5c45881.rmeta --extern ansi_term=/opt/rustwide/target/debug/deps/libansi_term-d72b5190f3a48dc6.rmeta --extern atty=/opt/rustwide/target/debug/deps/libatty-3f2a1b8b15c5419f.rmeta --extern clap=/opt/rustwide/target/debug/deps/libclap-e5f6c042c6f4f438.rmeta --extern diff=/opt/rustwide/target/debug/deps/libdiff-13fdb72427d252bf.rmeta --extern globset=/opt/rustwide/target/debug/deps/libglobset-26fe16e1c637a2d5.rmeta --extern fnv=/opt/rustwide/target/debug/deps/libfnv-805e908b45fb6218.rmeta --extern glob=/opt/rustwide/target/debug/deps/libglob-a49fd27e2f9b8c2c.rmeta --extern ignore=/opt/rustwide/target/debug/deps/libignore-9438cad18b7aa4ac.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-d07addd12a8987b7.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-1f54c6f043150147.rmeta --extern memchr=/opt/rustwide/target/debug/deps/libmemchr-72f046db06f8ad86.rmeta --extern nix=/opt/rustwide/target/debug/deps/libnix-4a29314e92625642.rmeta --extern num_cpus=/opt/rustwide/target/debug/deps/libnum_cpus-2504393e0cb431b8.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-98b8babbe6e0bf6b.rmeta --extern same_file=/opt/rustwide/target/debug/deps/libsame_file-ed285fbbd7eaa196.rmeta --extern signal_hook=/opt/rustwide/target/debug/deps/libsignal_hook-d99f115b95c40d76.rmeta --extern tempdir=/opt/rustwide/target/debug/deps/libtempdir-ed0789b91aa9ff43.rmeta --extern tempfile=/opt/rustwide/target/debug/deps/libtempfile-3916fd2b67c62662.rmeta --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "b40c2809ae696f5e4fc443174b0a9e65fee90aa1314f3b5724436e771cc74c00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b40c2809ae696f5e4fc443174b0a9e65fee90aa1314f3b5724436e771cc74c00", kill_on_drop: false }`
[INFO] [stdout] b40c2809ae696f5e4fc443174b0a9e65fee90aa1314f3b5724436e771cc74c00
