[INFO] cloning repository https://github.com/gregfolker/grep
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gregfolker/grep" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgregfolker%2Fgrep", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgregfolker%2Fgrep'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0ce3b6ce9957c9fc03094799f7fb0ed4235c9082
[INFO] testing gregfolker/grep against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgregfolker%2Fgrep" "/workspace/builds/worker-17/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-17/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/gregfolker/grep on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/gregfolker/grep
[INFO] finished tweaking git repo https://github.com/gregfolker/grep
[INFO] tweaked toml for git repo https://github.com/gregfolker/grep written to /workspace/builds/worker-17/source/Cargo.toml
[INFO] crate git repo https://github.com/gregfolker/grep already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b3585919c4f993abff18a1500ad9663c14e8af5b6c35756528a67170b2dea856
[INFO] running `Command { std: "docker" "start" "-a" "b3585919c4f993abff18a1500ad9663c14e8af5b6c35756528a67170b2dea856", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b3585919c4f993abff18a1500ad9663c14e8af5b6c35756528a67170b2dea856", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b3585919c4f993abff18a1500ad9663c14e8af5b6c35756528a67170b2dea856", kill_on_drop: false }`
[INFO] [stdout] b3585919c4f993abff18a1500ad9663c14e8af5b6c35756528a67170b2dea856
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d4089d3593ad0ea72f4efcd86ca38eb804ee7919bbc1f9679d9673dace8465ee
[INFO] running `Command { std: "docker" "start" "-a" "d4089d3593ad0ea72f4efcd86ca38eb804ee7919bbc1f9679d9673dace8465ee", kill_on_drop: false }`
[INFO] [stderr]    Compiling grep v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: multiple lines skipped by escaped newline
[INFO] [stdout]   --> src/lib.rs:90:25
[INFO] [stdout]    |
[INFO] [stdout] 90 |           let contents = "\
[INFO] [stdout]    |  _________________________^
[INFO] [stdout] 91 | |
[INFO] [stdout] 92 | | Rust:
[INFO] [stdout]    | |_ skipping everything up to and including this point
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple lines skipped by escaped newline
[INFO] [stdout]    --> src/lib.rs:102:25
[INFO] [stdout]     |
[INFO] [stdout] 102 |           let contents = "\
[INFO] [stdout]     |  _________________________^
[INFO] [stdout] 103 | |
[INFO] [stdout] 104 | | Rust:
[INFO] [stdout]     | |_ skipping everything up to and including this point
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.69s
[INFO] running `Command { std: "docker" "inspect" "d4089d3593ad0ea72f4efcd86ca38eb804ee7919bbc1f9679d9673dace8465ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d4089d3593ad0ea72f4efcd86ca38eb804ee7919bbc1f9679d9673dace8465ee", kill_on_drop: false }`
[INFO] [stdout] d4089d3593ad0ea72f4efcd86ca38eb804ee7919bbc1f9679d9673dace8465ee
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a559a57c4094636441e1ff5e5ce8eb60ff1a102f951961552b942aab08b83449
[INFO] running `Command { std: "docker" "start" "-a" "a559a57c4094636441e1ff5e5ce8eb60ff1a102f951961552b942aab08b83449", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] warning: multiple lines skipped by escaped newline
[INFO] [stdout]   --> src/lib.rs:90:25
[INFO] [stdout]    |
[INFO] [stdout] 90 |           let contents = "\
[INFO] [stdout]    |  _________________________^
[INFO] [stdout] 91 | |
[INFO] [stdout] 92 | | Rust:
[INFO] [stdout]    | |_ skipping everything up to and including this point
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple lines skipped by escaped newline
[INFO] [stdout]    --> src/lib.rs:102:25
[INFO] [stdout]     |
[INFO] [stdout] 102 |           let contents = "\
[INFO] [stdout]     |  _________________________^
[INFO] [stdout] 103 | |
[INFO] [stdout] 104 | | Rust:
[INFO] [stdout]     | |_ skipping everything up to and including this point
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling grep v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: multiple lines skipped by escaped newline
[INFO] [stdout]   --> src/lib.rs:90:25
[INFO] [stdout]    |
[INFO] [stdout] 90 |           let contents = "\
[INFO] [stdout]    |  _________________________^
[INFO] [stdout] 91 | |
[INFO] [stdout] 92 | | Rust:
[INFO] [stdout]    | |_ skipping everything up to and including this point
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple lines skipped by escaped newline
[INFO] [stdout]    --> src/lib.rs:102:25
[INFO] [stdout]     |
[INFO] [stdout] 102 |           let contents = "\
[INFO] [stdout]     |  _________________________^
[INFO] [stdout] 103 | |
[INFO] [stdout] 104 | | Rust:
[INFO] [stdout]     | |_ skipping everything up to and including this point
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.60s
[INFO] running `Command { std: "docker" "inspect" "a559a57c4094636441e1ff5e5ce8eb60ff1a102f951961552b942aab08b83449", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a559a57c4094636441e1ff5e5ce8eb60ff1a102f951961552b942aab08b83449", kill_on_drop: false }`
[INFO] [stdout] a559a57c4094636441e1ff5e5ce8eb60ff1a102f951961552b942aab08b83449
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] dc37637e29c29eb04992e24f463861852918746cfc67606bdb114407b1744a4c
[INFO] running `Command { std: "docker" "start" "-a" "dc37637e29c29eb04992e24f463861852918746cfc67606bdb114407b1744a4c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: multiple lines skipped by escaped newline
[INFO] [stderr]   --> src/lib.rs:90:25
[INFO] [stderr]    |
[INFO] [stderr] 90 |           let contents = "\
[INFO] [stderr]    |  _________________________^
[INFO] [stderr] 91 | |
[INFO] [stderr] 92 | | Rust:
[INFO] [stderr]    | |_ skipping everything up to and including this point
[INFO] [stderr] 
[INFO] [stderr] warning: multiple lines skipped by escaped newline
[INFO] [stderr]    --> src/lib.rs:102:25
[INFO] [stderr]     |
[INFO] [stderr] 102 |           let contents = "\
[INFO] [stderr]     |  _________________________^
[INFO] [stderr] 103 | |
[INFO] [stderr] 104 | | Rust:
[INFO] [stderr]     | |_ skipping everything up to and including this point
[INFO] [stderr] 
[INFO] [stderr] warning: `grep` (lib) generated 2 warnings
[INFO] [stderr] warning: `grep` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 5.80s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/grep-6275279d78278bbd)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test tests::case_insensitive ... ok
[INFO] [stdout] test tests::case_sensitive ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/grep-3eb96778715e3d8b)
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests grep
[INFO] [stderr] warning: multiple lines skipped by escaped newline
[INFO] [stderr]   --> /opt/rustwide/workdir/src/lib.rs:90:25
[INFO] [stderr]    |
[INFO] [stderr] 90 |           let contents = "\
[INFO] [stderr]    |  _________________________^
[INFO] [stderr] 91 | |
[INFO] [stderr] 92 | | Rust:
[INFO] [stderr]    | |_ skipping everything up to and including this point
[INFO] [stderr] 
[INFO] [stderr] warning: multiple lines skipped by escaped newline
[INFO] [stderr]    --> /opt/rustwide/workdir/src/lib.rs:102:25
[INFO] [stderr]     |
[INFO] [stderr] 102 |           let contents = "\
[INFO] [stderr]     |  _________________________^
[INFO] [stderr] 103 | |
[INFO] [stderr] 104 | | Rust:
[INFO] [stderr]     | |_ skipping everything up to and including this point
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "dc37637e29c29eb04992e24f463861852918746cfc67606bdb114407b1744a4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc37637e29c29eb04992e24f463861852918746cfc67606bdb114407b1744a4c", kill_on_drop: false }`
[INFO] [stdout] dc37637e29c29eb04992e24f463861852918746cfc67606bdb114407b1744a4c