[INFO] cloning repository https://github.com/ntdef/groupby
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ntdef/groupby" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fntdef%2Fgroupby", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fntdef%2Fgroupby'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6fc275a3697c9a3306db6c56524e2417853a2014
[INFO] testing ntdef/groupby against master#99e3aef02079e9c10583638520cd0c134dc3a01d for pr-85530
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fntdef%2Fgroupby" "/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/ntdef/groupby on toolchain 99e3aef02079e9c10583638520cd0c134dc3a01d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ntdef/groupby
[INFO] finished tweaking git repo https://github.com/ntdef/groupby
[INFO] tweaked toml for git repo https://github.com/ntdef/groupby written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/ntdef/groupby already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1a194c72f9a2e5b112d98e1b705a3d89f72afa3ec0ae6fbe1efe9f3fa8078584
[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" "1a194c72f9a2e5b112d98e1b705a3d89f72afa3ec0ae6fbe1efe9f3fa8078584", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1a194c72f9a2e5b112d98e1b705a3d89f72afa3ec0ae6fbe1efe9f3fa8078584", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a194c72f9a2e5b112d98e1b705a3d89f72afa3ec0ae6fbe1efe9f3fa8078584", kill_on_drop: false }`
[INFO] [stdout] 1a194c72f9a2e5b112d98e1b705a3d89f72afa3ec0ae6fbe1efe9f3fa8078584
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b792fc8588c77a07ae628d7061f0502d47027f17334718261858d5550d3fb8ca
[INFO] running `Command { std: "docker" "start" "-a" "b792fc8588c77a07ae628d7061f0502d47027f17334718261858d5550d3fb8ca", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.18
[INFO] [stderr]    Compiling unicode-segmentation v0.1.3
[INFO] [stderr]    Compiling bitflags v0.7.0
[INFO] [stderr]    Compiling vec_map v0.6.0
[INFO] [stderr]    Compiling strsim v0.5.2
[INFO] [stderr]    Compiling threadpool v1.3.2
[INFO] [stderr]    Compiling term_size v0.2.1
[INFO] [stderr]    Compiling clap v2.19.2
[INFO] [stderr]    Compiling groupby v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:81:18
[INFO] [stdout]    |
[INFO] [stdout] 81 |     let rdr: Box<BufRead> = match input.as_ref() {
[INFO] [stdout]    |                  ^^^^^^^ help: use `dyn`: `dyn BufRead`
[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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.33s
[INFO] running `Command { std: "docker" "inspect" "b792fc8588c77a07ae628d7061f0502d47027f17334718261858d5550d3fb8ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b792fc8588c77a07ae628d7061f0502d47027f17334718261858d5550d3fb8ca", kill_on_drop: false }`
[INFO] [stdout] b792fc8588c77a07ae628d7061f0502d47027f17334718261858d5550d3fb8ca
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4acd981770628262c10e23b198f9f4820d97e88dd5938a6206e33e530c4f405c
[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" "4acd981770628262c10e23b198f9f4820d97e88dd5938a6206e33e530c4f405c", kill_on_drop: false }`
[INFO] [stderr]    Compiling groupby v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:81:18
[INFO] [stdout]    |
[INFO] [stdout] 81 |     let rdr: Box<BufRead> = match input.as_ref() {
[INFO] [stdout]    |                  ^^^^^^^ help: use `dyn`: `dyn BufRead`
[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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.95s
[INFO] running `Command { std: "docker" "inspect" "4acd981770628262c10e23b198f9f4820d97e88dd5938a6206e33e530c4f405c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4acd981770628262c10e23b198f9f4820d97e88dd5938a6206e33e530c4f405c", kill_on_drop: false }`
[INFO] [stdout] 4acd981770628262c10e23b198f9f4820d97e88dd5938a6206e33e530c4f405c
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 178d3b33b6047cce883fe3cc34bc0bce339e99ffef379d9358ab54b24a37e489
[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" "178d3b33b6047cce883fe3cc34bc0bce339e99ffef379d9358ab54b24a37e489", kill_on_drop: false }`
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:81:18
[INFO] [stderr]    |
[INFO] [stderr] 81 |     let rdr: Box<BufRead> = match input.as_ref() {
[INFO] [stderr]    |                  ^^^^^^^ help: use `dyn`: `dyn BufRead`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/groupby-faf8282350a2189a)
[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" "178d3b33b6047cce883fe3cc34bc0bce339e99ffef379d9358ab54b24a37e489", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "178d3b33b6047cce883fe3cc34bc0bce339e99ffef379d9358ab54b24a37e489", kill_on_drop: false }`
[INFO] [stdout] 178d3b33b6047cce883fe3cc34bc0bce339e99ffef379d9358ab54b24a37e489