[INFO] cloning repository https://github.com/wa7sa34cx/rust-kladov
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wa7sa34cx/rust-kladov" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwa7sa34cx%2Frust-kladov", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwa7sa34cx%2Frust-kladov'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e017b6a61cad96bfbad415ffc9610a596ef47170
[INFO] testing wa7sa34cx/rust-kladov against beta-2022-02-22 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwa7sa34cx%2Frust-kladov" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/wa7sa34cx/rust-kladov on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/wa7sa34cx/rust-kladov
[INFO] finished tweaking git repo https://github.com/wa7sa34cx/rust-kladov
[INFO] tweaked toml for git repo https://github.com/wa7sa34cx/rust-kladov written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/wa7sa34cx/rust-kladov already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", 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] 223eda3936c01de6f44e635cb43791645150f4203fa6f31a0636110ea616b703
[INFO] running `Command { std: "docker" "start" "-a" "223eda3936c01de6f44e635cb43791645150f4203fa6f31a0636110ea616b703", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "223eda3936c01de6f44e635cb43791645150f4203fa6f31a0636110ea616b703", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "223eda3936c01de6f44e635cb43791645150f4203fa6f31a0636110ea616b703", kill_on_drop: false }`
[INFO] [stdout] 223eda3936c01de6f44e635cb43791645150f4203fa6f31a0636110ea616b703
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4f1d4c9ac10859fe5230d342cb1d6533298f3fadbd7efdff59d17f020fa2abfa
[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" "4f1d4c9ac10859fe5230d342cb1d6533298f3fadbd7efdff59d17f020fa2abfa", kill_on_drop: false }`
[INFO] [stderr]    Compiling kladov v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable `r` is assigned to, but never used
[INFO] [stdout]   --> src/ch02_lifetime/mod.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |     let r: &i32;
[INFO] [stdout]    |         ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout]    = note: consider using `_r` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `r` is never read
[INFO] [stdout]   --> src/ch02_lifetime/mod.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |         r = &y; // `y` does not live long enough!!!
[INFO] [stdout]    |         ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]    --> src/ch02_lifetime/mod.rs:193:26
[INFO] [stdout]     |
[INFO] [stdout] 193 | fn f<'a, 'b>(x: &'a i32, y: &'b i32) -> &'a i32 {
[INFO] [stdout]     |                          ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/ch02_lifetime/mod.rs:79:9
[INFO] [stdout]    |
[INFO] [stdout] 79 |     let mut w = Wrapper {
[INFO] [stdout]    |         ----^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.73s
[INFO] running `Command { std: "docker" "inspect" "4f1d4c9ac10859fe5230d342cb1d6533298f3fadbd7efdff59d17f020fa2abfa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f1d4c9ac10859fe5230d342cb1d6533298f3fadbd7efdff59d17f020fa2abfa", kill_on_drop: false }`
[INFO] [stdout] 4f1d4c9ac10859fe5230d342cb1d6533298f3fadbd7efdff59d17f020fa2abfa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 80d4d43817fad36190841f6d007d32fdba7937fa99b0cbb1933a11c358ac162e
[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" "80d4d43817fad36190841f6d007d32fdba7937fa99b0cbb1933a11c358ac162e", kill_on_drop: false }`
[INFO] [stderr]    Compiling kladov v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable `r` is assigned to, but never used
[INFO] [stdout]   --> src/ch02_lifetime/mod.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |     let r: &i32;
[INFO] [stdout]    |         ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout]    = note: consider using `_r` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `r` is never read
[INFO] [stdout]   --> src/ch02_lifetime/mod.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |         r = &y; // `y` does not live long enough!!!
[INFO] [stdout]    |         ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]    --> src/ch02_lifetime/mod.rs:193:26
[INFO] [stdout]     |
[INFO] [stdout] 193 | fn f<'a, 'b>(x: &'a i32, y: &'b i32) -> &'a i32 {
[INFO] [stdout]     |                          ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/ch02_lifetime/mod.rs:79:9
[INFO] [stdout]    |
[INFO] [stdout] 79 |     let mut w = Wrapper {
[INFO] [stdout]    |         ----^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.82s
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "80d4d43817fad36190841f6d007d32fdba7937fa99b0cbb1933a11c358ac162e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "80d4d43817fad36190841f6d007d32fdba7937fa99b0cbb1933a11c358ac162e", kill_on_drop: false }`
[INFO] [stdout] 80d4d43817fad36190841f6d007d32fdba7937fa99b0cbb1933a11c358ac162e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8268eeb38929f64a7ae85651246e6364b15f9d01b76c6043b1a16eb8b515f0b8
[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" "8268eeb38929f64a7ae85651246e6364b15f9d01b76c6043b1a16eb8b515f0b8", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: variable `r` is assigned to, but never used
[INFO] [stdout] running 0 tests
[INFO] [stderr]   --> src/ch02_lifetime/mod.rs:30:9
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 30 |     let r: &i32;
[INFO] [stdout] 
[INFO] [stderr]    |         ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr]    = note: consider using `_r` instead
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `r` is never read
[INFO] [stderr]   --> src/ch02_lifetime/mod.rs:33:9
[INFO] [stderr]    |
[INFO] [stderr] 33 |         r = &y; // `y` does not live long enough!!!
[INFO] [stderr]    |         ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `y`
[INFO] [stderr]    --> src/ch02_lifetime/mod.rs:193:26
[INFO] [stderr]     |
[INFO] [stderr] 193 | fn f<'a, 'b>(x: &'a i32, y: &'b i32) -> &'a i32 {
[INFO] [stderr]     |                          ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/ch02_lifetime/mod.rs:79:9
[INFO] [stderr]    |
[INFO] [stderr] 79 |     let mut w = Wrapper {
[INFO] [stderr]    |         ----^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `kladov` (bin "kladov" test) generated 4 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/kladov-4cb831e762932d40)
[INFO] running `Command { std: "docker" "inspect" "8268eeb38929f64a7ae85651246e6364b15f9d01b76c6043b1a16eb8b515f0b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8268eeb38929f64a7ae85651246e6364b15f9d01b76c6043b1a16eb8b515f0b8", kill_on_drop: false }`
[INFO] [stdout] 8268eeb38929f64a7ae85651246e6364b15f9d01b76c6043b1a16eb8b515f0b8