[INFO] cloning repository https://github.com/atellix/slab-alloc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/atellix/slab-alloc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fatellix%2Fslab-alloc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fatellix%2Fslab-alloc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] deb9bfed15fb37092343ff4d131b1fad91751500
[INFO] testing atellix/slab-alloc against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fatellix%2Fslab-alloc" "/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/atellix/slab-alloc on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/atellix/slab-alloc
[INFO] finished tweaking git repo https://github.com/atellix/slab-alloc
[INFO] tweaked toml for git repo https://github.com/atellix/slab-alloc written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/atellix/slab-alloc already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bytemuck_derive v1.1.0
[INFO] [stderr]   Downloaded solana-frozen-abi v1.8.16
[INFO] [stderr]   Downloaded murmur3 v0.5.1
[INFO] [stderr]   Downloaded solana-logger v1.8.16
[INFO] [stderr]   Downloaded solana-program v1.8.16
[INFO] [stderr]   Downloaded zeroize v1.4.1
[INFO] [stderr]   Downloaded solana-frozen-abi-macro v1.8.16
[INFO] [stderr]   Downloaded solana-sdk-macro v1.8.16
[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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1ae959d6b35ffc4e04aa9b1f47b8998224b260e6f99cfd32a1c223eda90c84d8
[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" "1ae959d6b35ffc4e04aa9b1f47b8998224b260e6f99cfd32a1c223eda90c84d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1ae959d6b35ffc4e04aa9b1f47b8998224b260e6f99cfd32a1c223eda90c84d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ae959d6b35ffc4e04aa9b1f47b8998224b260e6f99cfd32a1c223eda90c84d8", kill_on_drop: false }`
[INFO] [stdout] 1ae959d6b35ffc4e04aa9b1f47b8998224b260e6f99cfd32a1c223eda90c84d8
[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=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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6a8239339f0a5b655c25c4def8d73421bfa67d1a24250df887ff8d0d8bf43061
[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" "6a8239339f0a5b655c25c4def8d73421bfa67d1a24250df887ff8d0d8bf43061", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling serde v1.0.127
[INFO] [stderr]    Compiling murmur3 v0.5.1
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling blake3 v0.3.8
[INFO] [stderr]    Compiling solana-frozen-abi-macro v1.8.16
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling solana-frozen-abi v1.8.16
[INFO] [stderr]    Compiling generic-array v0.12.4
[INFO] [stderr]    Compiling memmap2 v0.1.0
[INFO] [stderr]    Compiling solana-program v1.8.16
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling digest v0.8.1
[INFO] [stderr]    Compiling curve25519-dalek v2.1.3
[INFO] [stderr]    Compiling env_logger v0.8.4
[INFO] [stderr]    Compiling solana-logger v1.8.16
[INFO] [stderr]    Compiling borsh-derive-internal v0.9.1
[INFO] [stderr]    Compiling borsh-schema-derive-internal v0.9.1
[INFO] [stderr]    Compiling serde_derive v1.0.127
[INFO] [stderr]    Compiling thiserror-impl v1.0.26
[INFO] [stderr]    Compiling bytemuck_derive v1.1.0
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]    Compiling num-derive v0.3.3
[INFO] [stderr]    Compiling solana-sdk-macro v1.8.16
[INFO] [stderr]    Compiling bytemuck v1.7.2
[INFO] [stderr]    Compiling thiserror v1.0.26
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling bv v0.11.1
[INFO] [stderr]    Compiling bincode v1.3.3
[INFO] [stderr]    Compiling serde_bytes v0.11.5
[INFO] [stderr]    Compiling digest v0.9.0
[INFO] [stderr]    Compiling block-buffer v0.9.0
[INFO] [stderr]    Compiling crypto-mac v0.8.0
[INFO] [stderr]    Compiling libsecp256k1-core v0.2.2
[INFO] [stderr]    Compiling sha2 v0.9.5
[INFO] [stderr]    Compiling sha3 v0.9.1
[INFO] [stderr]    Compiling hmac v0.8.1
[INFO] [stderr]    Compiling proc-macro-crate v0.1.5
[INFO] [stderr]    Compiling proc-macro-crate v1.0.0
[INFO] [stderr]    Compiling hmac-drbg v0.3.0
[INFO] [stderr]    Compiling borsh-derive v0.9.1
[INFO] [stderr]    Compiling num_enum_derive v0.5.3
[INFO] [stderr]    Compiling libsecp256k1-gen-ecmult v0.2.1
[INFO] [stderr]    Compiling libsecp256k1-gen-genmult v0.2.1
[INFO] [stderr]    Compiling libsecp256k1 v0.5.0
[INFO] [stderr]    Compiling borsh v0.9.1
[INFO] [stderr]    Compiling num_enum v0.5.3
[INFO] [stderr]    Compiling slab-alloc v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable `last` is assigned to, but never used
[INFO] [stdout]    --> src/lib.rs:296:17
[INFO] [stdout]     |
[INFO] [stdout] 296 |         let mut last: u16 = 0;
[INFO] [stdout]     |                 ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout]     = note: consider using `_last` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `last` is never read
[INFO] [stdout]    --> src/lib.rs:305:13
[INFO] [stdout]     |
[INFO] [stdout] 305 |             last = page + 1;
[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: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 56s
[INFO] running `Command { std: "docker" "inspect" "6a8239339f0a5b655c25c4def8d73421bfa67d1a24250df887ff8d0d8bf43061", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a8239339f0a5b655c25c4def8d73421bfa67d1a24250df887ff8d0d8bf43061", kill_on_drop: false }`
[INFO] [stdout] 6a8239339f0a5b655c25c4def8d73421bfa67d1a24250df887ff8d0d8bf43061
[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=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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "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] c851253d0c2b5332c95735866e4ece56a32ef86f943b8d06b2aa9665fbc3dff2
[INFO] running `Command { std: "docker" "start" "-a" "c851253d0c2b5332c95735866e4ece56a32ef86f943b8d06b2aa9665fbc3dff2", kill_on_drop: false }`
[INFO] [stdout] warning: variable `last` is assigned to, but never used
[INFO] [stdout]    --> src/lib.rs:296:17
[INFO] [stdout]     |
[INFO] [stdout] 296 |         let mut last: u16 = 0;
[INFO] [stdout]     |                 ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout]     = note: consider using `_last` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `last` is never read
[INFO] [stdout]    --> src/lib.rs:305:13
[INFO] [stdout]     |
[INFO] [stdout] 305 |             last = page + 1;
[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: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling slab-alloc v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `fmt`
[INFO] [stdout]     --> src/lib.rs:1200:21
[INFO] [stdout]      |
[INFO] [stdout] 1200 |             let s = fmt::format(format_args!("Hello, {}!", k));
[INFO] [stdout]      |                     ^^^ use of undeclared crate or module `fmt`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `fmt`
[INFO] [stdout]     --> src/lib.rs:1205:18
[INFO] [stdout]      |
[INFO] [stdout] 1205 |         let s1 = fmt::format(format_args!("Hello, {}!", 3));
[INFO] [stdout]      |                  ^^^ use of undeclared crate or module `fmt`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `fmt`
[INFO] [stdout]     --> src/lib.rs:1207:18
[INFO] [stdout]      |
[INFO] [stdout] 1207 |         let s2 = fmt::format(format_args!("Hello, {}!", 8));
[INFO] [stdout]      |                  ^^^ use of undeclared crate or module `fmt`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `slab-alloc` due to 4 previous errors
[INFO] running `Command { std: "docker" "inspect" "c851253d0c2b5332c95735866e4ece56a32ef86f943b8d06b2aa9665fbc3dff2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c851253d0c2b5332c95735866e4ece56a32ef86f943b8d06b2aa9665fbc3dff2", kill_on_drop: false }`
[INFO] [stdout] c851253d0c2b5332c95735866e4ece56a32ef86f943b8d06b2aa9665fbc3dff2