[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 master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwa7sa34cx%2Frust-kladov" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/wa7sa34cx/rust-kladov on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "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-12/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" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 89be006acee479348805577082d6d8f34397458482eca2a21ebaa2a9ce49cece
[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" "89be006acee479348805577082d6d8f34397458482eca2a21ebaa2a9ce49cece", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "89be006acee479348805577082d6d8f34397458482eca2a21ebaa2a9ce49cece", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "89be006acee479348805577082d6d8f34397458482eca2a21ebaa2a9ce49cece", kill_on_drop: false }`
[INFO] [stdout] 89be006acee479348805577082d6d8f34397458482eca2a21ebaa2a9ce49cece
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b24b4a6ff6a6546d9a808076c931bbc63379afa73b1bc35da395abb0573f768c
[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" "b24b4a6ff6a6546d9a808076c931bbc63379afa73b1bc35da395abb0573f768c", 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 1.01s
[INFO] running `Command { std: "docker" "inspect" "b24b4a6ff6a6546d9a808076c931bbc63379afa73b1bc35da395abb0573f768c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b24b4a6ff6a6546d9a808076c931bbc63379afa73b1bc35da395abb0573f768c", kill_on_drop: false }`
[INFO] [stdout] b24b4a6ff6a6546d9a808076c931bbc63379afa73b1bc35da395abb0573f768c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--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] 6bd76875d031672a1a20e0877503310ecf4e68a3006204221ffe9da1e7b68a26
[INFO] running `Command { std: "docker" "start" "-a" "6bd76875d031672a1a20e0877503310ecf4e68a3006204221ffe9da1e7b68a26", 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 test [unoptimized + debuginfo] target(s) in 0.85s
[INFO] running `Command { std: "docker" "inspect" "6bd76875d031672a1a20e0877503310ecf4e68a3006204221ffe9da1e7b68a26", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6bd76875d031672a1a20e0877503310ecf4e68a3006204221ffe9da1e7b68a26", kill_on_drop: false }`
[INFO] [stdout] 6bd76875d031672a1a20e0877503310ecf4e68a3006204221ffe9da1e7b68a26
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8a8e2e5dcc9a9fa09e48925bbcf99ed0dad1974816a032bdceca408670bb7d88
[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" "8a8e2e5dcc9a9fa09e48925bbcf99ed0dad1974816a032bdceca408670bb7d88", kill_on_drop: false }`
[INFO] [stderr] warning: variable `r` is assigned to, but never used
[INFO] [stderr]   --> src/ch02_lifetime/mod.rs:30:9
[INFO] [stderr]    |
[INFO] [stderr] 30 |     let r: &i32;
[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 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/kladov-3f2fa54dc8c6029d)
[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" "8a8e2e5dcc9a9fa09e48925bbcf99ed0dad1974816a032bdceca408670bb7d88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a8e2e5dcc9a9fa09e48925bbcf99ed0dad1974816a032bdceca408670bb7d88", kill_on_drop: false }`
[INFO] [stdout] 8a8e2e5dcc9a9fa09e48925bbcf99ed0dad1974816a032bdceca408670bb7d88