[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] testing mrageh/simplegrep against try#eafdee2dfae8c2233b74f98b123308be7ccefcc6 for pr-79296
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmrageh%2Fsimplegrep" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mrageh/simplegrep on toolchain eafdee2dfae8c2233b74f98b123308be7ccefcc6
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "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-6/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" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bstr v0.1.4
[INFO] [stderr]   Downloaded globset v0.4.3
[INFO] [stderr]   Downloaded bytecount v0.5.1
[INFO] [stderr]   Downloaded encoding_rs_io v0.1.6
[INFO] [stderr]   Downloaded grep v0.2.4
[INFO] [stderr]   Downloaded grep-matcher v0.1.2
[INFO] [stderr]   Downloaded grep-printer v0.1.2
[INFO] [stderr]   Downloaded grep-regex v0.1.3
[INFO] [stderr]   Downloaded grep-cli v0.1.2
[INFO] [stderr]   Downloaded grep-searcher v0.1.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0dd85674019ea0715a67ad32afc0c4e20d887fe452e8af369164e3e081bbd144
[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" "0dd85674019ea0715a67ad32afc0c4e20d887fe452e8af369164e3e081bbd144", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0dd85674019ea0715a67ad32afc0c4e20d887fe452e8af369164e3e081bbd144", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0dd85674019ea0715a67ad32afc0c4e20d887fe452e8af369164e3e081bbd144", kill_on_drop: false }`
[INFO] [stdout] 0dd85674019ea0715a67ad32afc0c4e20d887fe452e8af369164e3e081bbd144
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 45ccb176a2cb1252e7d5bd0d46a63db5c65db53d8ab4eb03c3c0bd672b4cdb27
[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" "45ccb176a2cb1252e7d5bd0d46a63db5c65db53d8ab4eb03c3c0bd672b4cdb27", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling regex v1.1.7
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling ucd-util v0.1.3
[INFO] [stderr]    Compiling syn v0.15.36
[INFO] [stderr]    Compiling bytecount v0.5.1
[INFO] [stderr]    Compiling fnv v1.0.6
[INFO] [stderr]    Compiling termcolor v1.0.5
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling encoding_rs v0.8.17
[INFO] [stderr]    Compiling regex-automata v0.1.7
[INFO] [stderr]    Compiling grep-matcher v0.1.2
[INFO] [stderr]    Compiling serde_json v1.0.39
[INFO] [stderr]    Compiling regex-syntax v0.6.7
[INFO] [stderr]    Compiling bstr v0.1.4
[INFO] [stderr]    Compiling quote v0.6.12
[INFO] [stderr]    Compiling encoding_rs_io v0.1.6
[INFO] [stderr]    Compiling grep-searcher v0.1.4
[INFO] [stderr]    Compiling serde_derive v1.0.92
[INFO] [stderr]    Compiling globset v0.4.3
[INFO] [stderr]    Compiling grep-regex v0.1.3
[INFO] [stderr]    Compiling grep-cli v0.1.2
[INFO] [stderr]    Compiling grep-printer v0.1.2
[INFO] [stderr]    Compiling grep v0.2.4
[INFO] [stderr]    Compiling 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: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 58.07s
[INFO] running `Command { std: "docker" "inspect" "45ccb176a2cb1252e7d5bd0d46a63db5c65db53d8ab4eb03c3c0bd672b4cdb27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "45ccb176a2cb1252e7d5bd0d46a63db5c65db53d8ab4eb03c3c0bd672b4cdb27", kill_on_drop: false }`
[INFO] [stdout] 45ccb176a2cb1252e7d5bd0d46a63db5c65db53d8ab4eb03c3c0bd672b4cdb27
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d81dbe9795a437439da92030a7c32745d4d54fd6820390fc84fc29df63bee8ae
[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" "d81dbe9795a437439da92030a7c32745d4d54fd6820390fc84fc29df63bee8ae", kill_on_drop: false }`
[INFO] [stderr]    Compiling 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: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.26s
[INFO] running `Command { std: "docker" "inspect" "d81dbe9795a437439da92030a7c32745d4d54fd6820390fc84fc29df63bee8ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d81dbe9795a437439da92030a7c32745d4d54fd6820390fc84fc29df63bee8ae", kill_on_drop: false }`
[INFO] [stdout] d81dbe9795a437439da92030a7c32745d4d54fd6820390fc84fc29df63bee8ae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0d9bf6c59a4ab47bf95b7dd4613677715ffc272e8a930b626124791beec63552
[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" "0d9bf6c59a4ab47bf95b7dd4613677715ffc272e8a930b626124791beec63552", kill_on_drop: false }`
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:24:33
[INFO] [stderr]    |
[INFO] [stderr] 24 | fn try_main() -> Result<(), Box<Error>> {
[INFO] [stderr]    |                                 ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:43:64
[INFO] [stderr]    |
[INFO] [stderr] 43 | fn search(pattern: &str, paths: &[OsString]) -> Result<(), Box<Error>> {
[INFO] [stderr]    |                                                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/simplegrep-5e4379dd45f6da56
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "0d9bf6c59a4ab47bf95b7dd4613677715ffc272e8a930b626124791beec63552", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d9bf6c59a4ab47bf95b7dd4613677715ffc272e8a930b626124791beec63552", kill_on_drop: false }`
[INFO] [stdout] 0d9bf6c59a4ab47bf95b7dd4613677715ffc272e8a930b626124791beec63552