[INFO] cloning repository https://github.com/Gisleburt/Skitty
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Gisleburt/Skitty" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGisleburt%2FSkitty", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGisleburt%2FSkitty'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a9a1b8a8fcd99473697944e74e99bf2702ccb525
[INFO] checking Gisleburt/Skitty against try#c8bdaa84ec1b37f18f30375e196a65b7602f3790 for pr-73345
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGisleburt%2FSkitty" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Gisleburt/Skitty on toolchain c8bdaa84ec1b37f18f30375e196a65b7602f3790
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Gisleburt/Skitty
[INFO] finished tweaking git repo https://github.com/Gisleburt/Skitty
[INFO] tweaked toml for git repo https://github.com/Gisleburt/Skitty written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/Gisleburt/Skitty already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded miniz_oxide v0.1.3
[INFO] [stderr]   Downloaded filetime v0.2.1
[INFO] [stderr]   Downloaded miniz_oxide_c_api v0.1.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:6c9ffe128752d56c8d75334ed354142a5229917ed99767f56566dd8e857ad726" "/opt/rustwide/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dd43e5e850969996734dab0691f96d1e2cff16958a7ad11e174afdeaa271a74c
[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" "dd43e5e850969996734dab0691f96d1e2cff16958a7ad11e174afdeaa271a74c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dd43e5e850969996734dab0691f96d1e2cff16958a7ad11e174afdeaa271a74c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd43e5e850969996734dab0691f96d1e2cff16958a7ad11e174afdeaa271a74c", kill_on_drop: false }`
[INFO] [stdout] dd43e5e850969996734dab0691f96d1e2cff16958a7ad11e174afdeaa271a74c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:6c9ffe128752d56c8d75334ed354142a5229917ed99767f56566dd8e857ad726" "/opt/rustwide/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9c24187783fa626d9af7437c021ba63e8bdb8474e037c3102f5c5170a5929b66
[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" "9c24187783fa626d9af7437c021ba63e8bdb8474e037c3102f5c5170a5929b66", kill_on_drop: false }`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling cc v1.0.23
[INFO] [stderr]     Checking cfg-if v0.1.5
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling build_const v0.2.1
[INFO] [stderr]     Checking rand_core v0.2.1
[INFO] [stderr]     Checking stable_deref_trait v1.1.1
[INFO] [stderr]     Checking lazycell v0.6.0
[INFO] [stderr]     Checking futures v0.1.23
[INFO] [stderr]     Checking slab v0.4.1
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]     Checking adler32 v1.0.3
[INFO] [stderr]    Compiling failure_derive v0.1.2
[INFO] [stderr]     Checking lazycell v1.0.0
[INFO] [stderr]     Checking rustc-demangle v0.1.9
[INFO] [stderr]     Checking same-file v1.0.3
[INFO] [stderr]     Checking itoa v0.4.2
[INFO] [stderr]     Checking podio v0.1.6
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking num_cpus v1.8.0
[INFO] [stderr]     Checking time v0.1.40
[INFO] [stderr]     Checking inotify-sys v0.1.3
[INFO] [stderr]     Checking log v0.4.4
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking filetime v0.2.1
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]     Checking owning_ref v0.3.3
[INFO] [stderr]    Compiling proc-macro2 v0.4.16
[INFO] [stderr]     Checking miniz_oxide v0.1.3
[INFO] [stderr]     Checking walkdir v2.2.5
[INFO] [stderr]     Checking bytes v0.4.9
[INFO] [stderr]     Checking rand v0.5.5
[INFO] [stderr]     Checking serde_json v1.0.26
[INFO] [stderr]     Checking smallvec v0.6.5
[INFO] [stderr]     Checking lock_api v0.1.3
[INFO] [stderr]    Compiling crc v1.8.1
[INFO] [stderr]     Checking mio v0.6.15
[INFO] [stderr]     Checking msdos_time v0.1.6
[INFO] [stderr]    Compiling quote v0.6.8
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]    Compiling backtrace-sys v0.1.24
[INFO] [stderr]    Compiling miniz_oxide_c_api v0.1.3
[INFO] [stderr]    Compiling bzip2-sys v0.1.6
[INFO] [stderr]     Checking mio-extras v2.0.5
[INFO] [stderr]     Checking flate2 v1.0.2
[INFO] [stderr]     Checking parking_lot_core v0.3.0
[INFO] [stderr]     Checking tokio-executor v0.1.4
[INFO] [stderr]     Checking tokio-io v0.1.8
[INFO] [stderr]     Checking parking_lot v0.6.4
[INFO] [stderr]     Checking bzip2 v0.3.3
[INFO] [stderr]     Checking backtrace v0.3.9
[INFO] [stderr]     Checking tokio-reactor v0.1.5
[INFO] [stderr]     Checking zip v0.4.2
[INFO] [stderr]     Checking inotify v0.6.1
[INFO] [stderr]     Checking notify v4.0.6
[INFO] [stderr]    Compiling synstructure v0.9.0
[INFO] [stderr]     Checking failure v0.1.2
[INFO] [stderr]     Checking skitty v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/project/fs_tools.rs:10:36
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub fn make_absolute<'a>(path: &'a AsRef<Path>) -> SkittyResult<Cow<'a, Path>>
[INFO] [stdout]    |                                    ^^^^^^^^^^^ help: use `dyn`: `dyn AsRef<Path>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/project/json_tools.rs:12:35
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub fn prettify_json_in_dir(dir: &AsRef<Path>) -> SkittyResult<()> {
[INFO] [stdout]    |                                   ^^^^^^^^^^^ help: use `dyn`: `dyn AsRef<Path>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/project/json_tools.rs:30:30
[INFO] [stdout]    |
[INFO] [stdout] 30 | fn prettify_json_file(file: &AsRef<Path>) -> SkittyResult<()> {
[INFO] [stdout]    |                              ^^^^^^^^^^^ help: use `dyn`: `dyn AsRef<Path>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:18:23
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub fn extract(path: &AsRef<Path>) -> SkittyResult<()>
[INFO] [stdout]    |                       ^^^^^^^^^^^ help: use `dyn`: `dyn AsRef<Path>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:24:23
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub fn combine(path: &AsRef<Path>) -> SkittyResult<()>
[INFO] [stdout]    |                       ^^^^^^^^^^^ help: use `dyn`: `dyn AsRef<Path>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:30:21
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub fn watch(path: &AsRef<Path>) -> SkittyResult<()>
[INFO] [stdout]    |                     ^^^^^^^^^^^ help: use `dyn`: `dyn AsRef<Path>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/project/fs_tools.rs:10:36
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub fn make_absolute<'a>(path: &'a AsRef<Path>) -> SkittyResult<Cow<'a, Path>>
[INFO] [stdout]    |                                    ^^^^^^^^^^^ help: use `dyn`: `dyn AsRef<Path>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/project/json_tools.rs:12:35
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub fn prettify_json_in_dir(dir: &AsRef<Path>) -> SkittyResult<()> {
[INFO] [stdout]    |                                   ^^^^^^^^^^^ help: use `dyn`: `dyn AsRef<Path>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/project/json_tools.rs:30:30
[INFO] [stdout]    |
[INFO] [stdout] 30 | fn prettify_json_file(file: &AsRef<Path>) -> SkittyResult<()> {
[INFO] [stdout]    |                              ^^^^^^^^^^^ help: use `dyn`: `dyn AsRef<Path>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:18:23
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub fn extract(path: &AsRef<Path>) -> SkittyResult<()>
[INFO] [stdout]    |                       ^^^^^^^^^^^ help: use `dyn`: `dyn AsRef<Path>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:24:23
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub fn combine(path: &AsRef<Path>) -> SkittyResult<()>
[INFO] [stdout]    |                       ^^^^^^^^^^^ help: use `dyn`: `dyn AsRef<Path>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:30:21
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub fn watch(path: &AsRef<Path>) -> SkittyResult<()>
[INFO] [stdout]    |                     ^^^^^^^^^^^ help: use `dyn`: `dyn AsRef<Path>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/project/zip_tools.rs:25:13
[INFO] [stdout]    |
[INFO] [stdout] 25 |         let mut file = zip.by_index(i)?;
[INFO] [stdout]    |             ----^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/project/zip_tools.rs:25:13
[INFO] [stdout]    |
[INFO] [stdout] 25 |         let mut file = zip.by_index(i)?;
[INFO] [stdout]    |             ----^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 36.40s
[INFO] running `Command { std: "docker" "inspect" "9c24187783fa626d9af7437c021ba63e8bdb8474e037c3102f5c5170a5929b66", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c24187783fa626d9af7437c021ba63e8bdb8474e037c3102f5c5170a5929b66", kill_on_drop: false }`
[INFO] [stdout] 9c24187783fa626d9af7437c021ba63e8bdb8474e037c3102f5c5170a5929b66