[INFO] cloning repository https://github.com/aoikonomopoulos/contgrep
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/aoikonomopoulos/contgrep" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faoikonomopoulos%2Fcontgrep", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faoikonomopoulos%2Fcontgrep'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6e366880993445392ff8e20a79c5d280d39d2c14
[INFO] checking aoikonomopoulos/contgrep against try#b20a093d9fb1ffaa04ae9852cb034864a992bafd for pr-85073
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faoikonomopoulos%2Fcontgrep" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/aoikonomopoulos/contgrep on toolchain b20a093d9fb1ffaa04ae9852cb034864a992bafd
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/aoikonomopoulos/contgrep
[INFO] finished tweaking git repo https://github.com/aoikonomopoulos/contgrep
[INFO] tweaked toml for git repo https://github.com/aoikonomopoulos/contgrep written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/aoikonomopoulos/contgrep already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cb9fc61194ae557398251171a842887b8944a457ee423fba8f19a222f952d922
[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" "cb9fc61194ae557398251171a842887b8944a457ee423fba8f19a222f952d922", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cb9fc61194ae557398251171a842887b8944a457ee423fba8f19a222f952d922", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb9fc61194ae557398251171a842887b8944a457ee423fba8f19a222f952d922", kill_on_drop: false }`
[INFO] [stdout] cb9fc61194ae557398251171a842887b8944a457ee423fba8f19a222f952d922
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6e5dd4b934d49bb5f37980006b20663f321dcbe7cfa8b335ed06ac83e1f90a28
[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" "6e5dd4b934d49bb5f37980006b20663f321dcbe7cfa8b335ed06ac83e1f90a28", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.50
[INFO] [stderr]    Compiling regex v1.1.2
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking bitflags v1.0.4
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking regex-syntax v0.6.5
[INFO] [stderr]     Checking aho-corasick v0.6.10
[INFO] [stderr]     Checking textwrap v0.10.0
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]     Checking contgrep v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:38:34
[INFO] [stdout]    |
[INFO] [stdout] 38 | fn format_append_line(acc : &mut io::Write, fctx : &FormatCtx, bytes : &[u8]) -> io::Result<()> {
[INFO] [stdout]    |                                  ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:54:42
[INFO] [stdout]    |
[INFO] [stdout] 54 | fn search_file(p : &Path, cont_sel: &Box<Fn(&[u8]) -> bool>, regex_set : &RegexSet,
[INFO] [stdout]    |                                          ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&[u8]) -> bool`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:97:54
[INFO] [stdout]    |
[INFO] [stdout] 97 | fn search_files(filepaths : &[&Path], cont_sel : Box<Fn(&[u8]) -> bool>, regex_set : &RegexSet,
[INFO] [stdout]    |                                                      ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&[u8]) -> bool`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:106:49
[INFO] [stdout]     |
[INFO] [stdout] 106 | fn build_cont_sel(matches : &ArgMatches) -> Box<Fn(&[u8]) -> bool> {
[INFO] [stdout]     |                                                 ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&[u8]) -> bool`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:38:34
[INFO] [stdout]    |
[INFO] [stdout] 38 | fn format_append_line(acc : &mut io::Write, fctx : &FormatCtx, bytes : &[u8]) -> io::Result<()> {
[INFO] [stdout]    |                                  ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:54:42
[INFO] [stdout]    |
[INFO] [stdout] 54 | fn search_file(p : &Path, cont_sel: &Box<Fn(&[u8]) -> bool>, regex_set : &RegexSet,
[INFO] [stdout]    |                                          ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&[u8]) -> bool`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:97:54
[INFO] [stdout]    |
[INFO] [stdout] 97 | fn search_files(filepaths : &[&Path], cont_sel : Box<Fn(&[u8]) -> bool>, regex_set : &RegexSet,
[INFO] [stdout]    |                                                      ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&[u8]) -> bool`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:106:49
[INFO] [stdout]     |
[INFO] [stdout] 106 | fn build_cont_sel(matches : &ArgMatches) -> Box<Fn(&[u8]) -> bool> {
[INFO] [stdout]     |                                                 ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&[u8]) -> bool`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.50s
[INFO] running `Command { std: "docker" "inspect" "6e5dd4b934d49bb5f37980006b20663f321dcbe7cfa8b335ed06ac83e1f90a28", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e5dd4b934d49bb5f37980006b20663f321dcbe7cfa8b335ed06ac83e1f90a28", kill_on_drop: false }`
[INFO] [stdout] 6e5dd4b934d49bb5f37980006b20663f321dcbe7cfa8b335ed06ac83e1f90a28