[INFO] cloning repository https://github.com/taskie/rust-memo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/taskie/rust-memo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftaskie%2Frust-memo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftaskie%2Frust-memo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 389718524416253649e58ce9b1a285f3b405275d
[INFO] testing taskie/rust-memo 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%2Ftaskie%2Frust-memo" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/taskie/rust-memo 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/taskie/rust-memo
[INFO] finished tweaking git repo https://github.com/taskie/rust-memo
[INFO] tweaked toml for git repo https://github.com/taskie/rust-memo written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/taskie/rust-memo 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-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] [stdout] 961a2d06c2608d5dbc04226209daffcdcf5cb7d65c3cd42b61ecea65f9b829e8
[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" "961a2d06c2608d5dbc04226209daffcdcf5cb7d65c3cd42b61ecea65f9b829e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "961a2d06c2608d5dbc04226209daffcdcf5cb7d65c3cd42b61ecea65f9b829e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "961a2d06c2608d5dbc04226209daffcdcf5cb7d65c3cd42b61ecea65f9b829e8", kill_on_drop: false }`
[INFO] [stdout] 961a2d06c2608d5dbc04226209daffcdcf5cb7d65c3cd42b61ecea65f9b829e8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 2f1e4ef9ae805a479d1b62592062d3bff63c5412af431f479463a24ae262b24a
[INFO] running `Command { std: "docker" "start" "-a" "2f1e4ef9ae805a479d1b62592062d3bff63c5412af431f479463a24ae262b24a", kill_on_drop: false }`
[INFO] [stderr]    Compiling memo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `s1`
[INFO] [stdout]  --> src/memo1.rs:5:15
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct S2_1 { s1: Option<S1> }
[INFO] [stdout]   |               ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `S2_1` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]  --> src/memo1.rs:4:10
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[derive(Debug)]
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout]   = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `s1`
[INFO] [stdout]  --> src/memo1.rs:8:19
[INFO] [stdout]   |
[INFO] [stdout] 8 | struct S2_2<'a> { s1: Option<&'a S1> }
[INFO] [stdout]   |                   ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] note: `S2_2` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]  --> src/memo1.rs:7:10
[INFO] [stdout]   |
[INFO] [stdout] 7 | #[derive(Debug)]
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout]   = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `f1`
[INFO] [stdout]   --> src/memo1.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn f1(&self) -> S1 {
[INFO] [stdout]    |        ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `f1`
[INFO] [stdout]   --> src/memo1.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 |     fn f1(&self) -> &S1 {
[INFO] [stdout]    |        ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.50s
[INFO] running `Command { std: "docker" "inspect" "2f1e4ef9ae805a479d1b62592062d3bff63c5412af431f479463a24ae262b24a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f1e4ef9ae805a479d1b62592062d3bff63c5412af431f479463a24ae262b24a", kill_on_drop: false }`
[INFO] [stdout] 2f1e4ef9ae805a479d1b62592062d3bff63c5412af431f479463a24ae262b24a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] 6faea2afd22f5d2cfcd10d4faee3e0b493f66154cd6e9f748eae5e1d369f8052
[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" "6faea2afd22f5d2cfcd10d4faee3e0b493f66154cd6e9f748eae5e1d369f8052", kill_on_drop: false }`
[INFO] [stdout] warning: field is never read: `s1`
[INFO] [stdout]  --> src/memo1.rs:5:15
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct S2_1 { s1: Option<S1> }
[INFO] [stdout]   |               ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `S2_1` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]  --> src/memo1.rs:4:10
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[derive(Debug)]
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout]   = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling memo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `s1`
[INFO] [stdout]  --> src/memo1.rs:8:19
[INFO] [stdout]   |
[INFO] [stdout] 8 | struct S2_2<'a> { s1: Option<&'a S1> }
[INFO] [stdout]   |                   ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] note: `S2_2` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]  --> src/memo1.rs:7:10
[INFO] [stdout]   |
[INFO] [stdout] 7 | #[derive(Debug)]
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout]   = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `f1`
[INFO] [stdout]   --> src/memo1.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn f1(&self) -> S1 {
[INFO] [stdout]    |        ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `f1`
[INFO] [stdout]   --> src/memo1.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 |     fn f1(&self) -> &S1 {
[INFO] [stdout]    |        ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.03s
[INFO] running `Command { std: "docker" "inspect" "6faea2afd22f5d2cfcd10d4faee3e0b493f66154cd6e9f748eae5e1d369f8052", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6faea2afd22f5d2cfcd10d4faee3e0b493f66154cd6e9f748eae5e1d369f8052", kill_on_drop: false }`
[INFO] [stdout] 6faea2afd22f5d2cfcd10d4faee3e0b493f66154cd6e9f748eae5e1d369f8052
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 386ca0f790a71ee0f2b656cd8538362cfd9c91ba14b527e8c907aefca72713ff
[INFO] running `Command { std: "docker" "start" "-a" "386ca0f790a71ee0f2b656cd8538362cfd9c91ba14b527e8c907aefca72713ff", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: field is never read: `s1`
[INFO] [stdout] running 2 tests
[INFO] [stderr]  --> src/memo1.rs:5:15
[INFO] [stdout] test memo1::test_2 ... ok
[INFO] [stderr]   |
[INFO] [stdout] test memo1::test_1 ... ok
[INFO] [stderr] 5 | struct S2_1 { s1: Option<S1> }
[INFO] [stdout] 
[INFO] [stderr]   |               ^^^^^^^^^^^^^^
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stderr]   |
[INFO] [stdout] 
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] note: `S2_1` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]  --> src/memo1.rs:4:10
[INFO] [stderr]   |
[INFO] [stderr] 4 | #[derive(Debug)]
[INFO] [stderr]   |          ^^^^^
[INFO] [stderr]   = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `s1`
[INFO] [stderr]  --> src/memo1.rs:8:19
[INFO] [stderr]   |
[INFO] [stderr] 8 | struct S2_2<'a> { s1: Option<&'a S1> }
[INFO] [stderr]   |                   ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr] note: `S2_2` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]  --> src/memo1.rs:7:10
[INFO] [stderr]   |
[INFO] [stderr] 7 | #[derive(Debug)]
[INFO] [stderr]   |          ^^^^^
[INFO] [stderr]   = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `f1`
[INFO] [stderr]   --> src/memo1.rs:16:8
[INFO] [stderr]    |
[INFO] [stderr] 16 |     fn f1(&self) -> S1 {
[INFO] [stderr]    |        ^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `f1`
[INFO] [stderr]   --> src/memo1.rs:23:8
[INFO] [stderr]    |
[INFO] [stderr] 23 |     fn f1(&self) -> &S1 {
[INFO] [stderr]    |        ^^
[INFO] [stderr] 
[INFO] [stderr] warning: `memo` (lib) generated 4 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/memo-b79f2f0e2d92e8c9)
[INFO] [stderr]    Doc-tests memo
[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" "386ca0f790a71ee0f2b656cd8538362cfd9c91ba14b527e8c907aefca72713ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "386ca0f790a71ee0f2b656cd8538362cfd9c91ba14b527e8c907aefca72713ff", kill_on_drop: false }`
[INFO] [stdout] 386ca0f790a71ee0f2b656cd8538362cfd9c91ba14b527e8c907aefca72713ff