[INFO] cloning repository https://github.com/mrageh/simplegrep
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mrageh/simplegrep" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmrageh%2Fsimplegrep", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmrageh%2Fsimplegrep'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 223bf40a3507785b90529180d0846367a08cba77
[INFO] checking mrageh/simplegrep against master#0d37dca25a51fb900a402c94c8818ad1c2789e30 for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmrageh%2Fsimplegrep" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mrageh/simplegrep on toolchain 0d37dca25a51fb900a402c94c8818ad1c2789e30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mrageh/simplegrep
[INFO] finished tweaking git repo https://github.com/mrageh/simplegrep
[INFO] tweaked toml for git repo https://github.com/mrageh/simplegrep written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/mrageh/simplegrep already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 96fdd334427cc848849fb4775855d3b3e57f264834a5c273353e67642b00d533
[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" "96fdd334427cc848849fb4775855d3b3e57f264834a5c273353e67642b00d533", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "96fdd334427cc848849fb4775855d3b3e57f264834a5c273353e67642b00d533", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "96fdd334427cc848849fb4775855d3b3e57f264834a5c273353e67642b00d533", kill_on_drop: false }`
[INFO] [stdout] 96fdd334427cc848849fb4775855d3b3e57f264834a5c273353e67642b00d533
[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" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b31471d0c542d532ec18f14421f85ea2d7ffe1dee96ad898b7948e7cb377a1e4
[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" "b31471d0c542d532ec18f14421f85ea2d7ffe1dee96ad898b7948e7cb377a1e4", kill_on_drop: false }`
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]     Checking cfg-if v0.1.9
[INFO] [stderr]    Compiling libc v0.2.58
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling encoding_rs v0.8.17
[INFO] [stderr]    Compiling serde v1.0.92
[INFO] [stderr]     Checking itoa v0.4.4
[INFO] [stderr]     Checking bytecount v0.5.1
[INFO] [stderr]     Checking termcolor v1.0.5
[INFO] [stderr]     Checking regex-syntax v0.6.7
[INFO] [stderr]     Checking walkdir v2.2.8
[INFO] [stderr]     Checking grep-matcher v0.1.2
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]    Compiling quote v0.6.12
[INFO] [stderr]     Checking regex-automata v0.1.7
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]    Compiling syn v0.15.36
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking bstr v0.1.4
[INFO] [stderr]     Checking encoding_rs_io v0.1.6
[INFO] [stderr]     Checking grep-searcher v0.1.4
[INFO] [stderr]     Checking regex v1.1.7
[INFO] [stderr]     Checking globset v0.4.3
[INFO] [stderr]     Checking grep-regex v0.1.3
[INFO] [stderr]     Checking grep-cli v0.1.2
[INFO] [stderr]     Checking serde_json v1.0.39
[INFO] [stderr]    Compiling serde_derive v1.0.92
[INFO] [stderr]     Checking grep-printer v0.1.2
[INFO] [stderr]     Checking grep v0.2.4
[INFO] [stderr]     Checking simplegrep v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:24:33
[INFO] [stdout]    |
[INFO] [stdout] 24 | fn try_main() -> Result<(), Box<Error>> {
[INFO] [stdout]    |                                 ^^^^^ help: use `dyn`: `dyn Error`
[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/main.rs:43:64
[INFO] [stdout]    |
[INFO] [stdout] 43 | fn search(pattern: &str, paths: &[OsString]) -> Result<(), Box<Error>> {
[INFO] [stdout]    |                                                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:24:33
[INFO] [stdout]    |
[INFO] [stdout] 24 | fn try_main() -> Result<(), Box<Error>> {
[INFO] [stdout]    |                                 ^^^^^ help: use `dyn`: `dyn Error`
[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/main.rs:43:64
[INFO] [stdout]    |
[INFO] [stdout] 43 | fn search(pattern: &str, paths: &[OsString]) -> Result<(), Box<Error>> {
[INFO] [stdout]    |                                                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 38.45s
[INFO] running `Command { std: "docker" "inspect" "b31471d0c542d532ec18f14421f85ea2d7ffe1dee96ad898b7948e7cb377a1e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b31471d0c542d532ec18f14421f85ea2d7ffe1dee96ad898b7948e7cb377a1e4", kill_on_drop: false }`
[INFO] [stdout] b31471d0c542d532ec18f14421f85ea2d7ffe1dee96ad898b7948e7cb377a1e4