[INFO] cloning repository https://github.com/9999years/concat_strs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/9999years/concat_strs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F9999years%2Fconcat_strs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F9999years%2Fconcat_strs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 10e280f740476fd5b08ae0ce0381a56aba2ffc3b
[INFO] testing 9999years/concat_strs against try#ce59db7a1b1b012fb2793c4641c1bdecad7a128b for pr-85530
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F9999years%2Fconcat_strs" "/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/9999years/concat_strs on toolchain ce59db7a1b1b012fb2793c4641c1bdecad7a128b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/9999years/concat_strs
[INFO] finished tweaking git repo https://github.com/9999years/concat_strs
[INFO] tweaked toml for git repo https://github.com/9999years/concat_strs written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/9999years/concat_strs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded oorandom v11.1.1
[INFO] [stderr]   Downloaded criterion v0.3.2
[INFO] [stderr]   Downloaded criterion-plot v0.4.2
[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" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6d9d838e787906184c4cdf9ad6149eff9475fb2ae35dce38eea8eb063ccf0737
[INFO] running `Command { std: "docker" "start" "-a" "6d9d838e787906184c4cdf9ad6149eff9475fb2ae35dce38eea8eb063ccf0737", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6d9d838e787906184c4cdf9ad6149eff9475fb2ae35dce38eea8eb063ccf0737", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d9d838e787906184c4cdf9ad6149eff9475fb2ae35dce38eea8eb063ccf0737", kill_on_drop: false }`
[INFO] [stdout] 6d9d838e787906184c4cdf9ad6149eff9475fb2ae35dce38eea8eb063ccf0737
[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" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 037629f13ca76dda7f0b1966cee49293233a3da8c21a1f7d7aa0d0ef84ca2d4c
[INFO] running `Command { std: "docker" "start" "-a" "037629f13ca76dda7f0b1966cee49293233a3da8c21a1f7d7aa0d0ef84ca2d4c", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.30
[INFO] [stderr]    Compiling proc-macro-hack v0.5.16
[INFO] [stderr]    Compiling quote v1.0.6
[INFO] [stderr]    Compiling concat_strs_impl v1.0.1 (/opt/rustwide/workdir/impl)
[INFO] [stderr]    Compiling concat_strs v1.0.3 (/opt/rustwide/workdir/decl)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.74s
[INFO] running `Command { std: "docker" "inspect" "037629f13ca76dda7f0b1966cee49293233a3da8c21a1f7d7aa0d0ef84ca2d4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "037629f13ca76dda7f0b1966cee49293233a3da8c21a1f7d7aa0d0ef84ca2d4c", kill_on_drop: false }`
[INFO] [stdout] 037629f13ca76dda7f0b1966cee49293233a3da8c21a1f7d7aa0d0ef84ca2d4c
[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" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 015595880cd5b2bc87a836d666cd05d48e7359d89e95e7aabe0155b8c8cca134
[INFO] running `Command { std: "docker" "start" "-a" "015595880cd5b2bc87a836d666cd05d48e7359d89e95e7aabe0155b8c8cca134", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling serde v1.0.111
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling rayon-core v1.7.0
[INFO] [stderr]    Compiling either v1.5.3
[INFO] [stderr]    Compiling unicode-width v0.1.7
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling regex-syntax v0.6.18
[INFO] [stderr]    Compiling oorandom v11.1.1
[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr]    Compiling serde_derive v1.0.111
[INFO] [stderr]    Compiling concat_strs_impl v1.0.1 (/opt/rustwide/workdir/impl)
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling walkdir v2.3.1
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling memoffset v0.5.4
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling clap v2.33.1
[INFO] [stderr]    Compiling criterion-plot v0.4.2
[INFO] [stderr]    Compiling regex-automata v0.1.9
[INFO] [stderr]    Compiling crossbeam-queue v0.2.2
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling regex v1.3.9
[INFO] [stderr]    Compiling crossbeam-deque v0.7.3
[INFO] [stderr]    Compiling rayon v1.3.0
[INFO] [stderr]    Compiling plotters v0.2.15
[INFO] [stderr]    Compiling serde_json v1.0.53
[INFO] [stderr]    Compiling bstr v0.2.13
[INFO] [stderr]    Compiling tinytemplate v1.1.0
[INFO] [stderr]    Compiling csv v1.1.3
[INFO] [stderr]    Compiling criterion v0.3.2
[INFO] [stderr]    Compiling concat_strs v1.0.3 (/opt/rustwide/workdir/decl)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 32.64s
[INFO] running `Command { std: "docker" "inspect" "015595880cd5b2bc87a836d666cd05d48e7359d89e95e7aabe0155b8c8cca134", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "015595880cd5b2bc87a836d666cd05d48e7359d89e95e7aabe0155b8c8cca134", kill_on_drop: false }`
[INFO] [stdout] 015595880cd5b2bc87a836d666cd05d48e7359d89e95e7aabe0155b8c8cca134
[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" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ee183d06a0e7310ed7cdd79db890104dff051754d3b213355dec07b179ca5144
[INFO] running `Command { std: "docker" "start" "-a" "ee183d06a0e7310ed7cdd79db890104dff051754d3b213355dec07b179ca5144", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/concat_strs-bdaab4faf87b349f)
[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]      Running tests/main.rs (/opt/rustwide/target/debug/deps/main-84fcf49d6620659f)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test simple ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/concat_strs_impl-d3c1bac32affd0b8)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests concat_strs_impl
[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 concat_strs
[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] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test lib.rs - concat_strs (line 41) ... ok
[INFO] [stdout] test lib.rs - (line 6) ... ok
[INFO] [stdout] test lib.rs - concat_strs (line 27) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.58s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ee183d06a0e7310ed7cdd79db890104dff051754d3b213355dec07b179ca5144", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee183d06a0e7310ed7cdd79db890104dff051754d3b213355dec07b179ca5144", kill_on_drop: false }`
[INFO] [stdout] ee183d06a0e7310ed7cdd79db890104dff051754d3b213355dec07b179ca5144