[INFO] fetching crate platter-walk 0.1.3...
[INFO] testing platter-walk-0.1.3 against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] extracting crate platter-walk 0.1.3 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate platter-walk 0.1.3 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 crates.io crate platter-walk 0.1.3
[INFO] finished tweaking crates.io crate platter-walk 0.1.3
[INFO] tweaked toml for crates.io crate platter-walk 0.1.3 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] 8af353128bbbe9af3c1f64ab19f5dd9be699266b214e73f42dce0f781f789ef2
[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" "8af353128bbbe9af3c1f64ab19f5dd9be699266b214e73f42dce0f781f789ef2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8af353128bbbe9af3c1f64ab19f5dd9be699266b214e73f42dce0f781f789ef2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8af353128bbbe9af3c1f64ab19f5dd9be699266b214e73f42dce0f781f789ef2", kill_on_drop: false }`
[INFO] [stdout] 8af353128bbbe9af3c1f64ab19f5dd9be699266b214e73f42dce0f781f789ef2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a2690a660b2c564a1f9931729698029787b617013df86f9910d0e7931bd14265
[INFO] running `Command { std: "docker" "start" "-a" "a2690a660b2c564a1f9931729698029787b617013df86f9910d0e7931bd14265", kill_on_drop: false }`
[INFO] [stderr]    Compiling build_const v0.2.2
[INFO] [stderr]    Compiling bitflags v0.7.0
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling uuid v0.3.1
[INFO] [stderr]    Compiling lazy_static v0.2.11
[INFO] [stderr]    Compiling miniz-sys v0.1.12
[INFO] [stderr]    Compiling minilzo-sys v0.1.0
[INFO] [stderr]    Compiling mnt v0.3.1
[INFO] [stderr]    Compiling nix v0.8.1
[INFO] [stderr]    Compiling minilzo v0.1.2
[INFO] [stderr]    Compiling crc v1.8.1
[INFO] [stderr]    Compiling flate2 v0.2.20
[INFO] [stderr]    Compiling btrfs2 v1.2.2
[INFO] [stderr]    Compiling platter-walk v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `prev_fetched`
[INFO] [stdout]    --> src/lib.rs:207:13
[INFO] [stdout]     |
[INFO] [stdout] 207 |         let prev_fetched = self.prefetched.len();
[INFO] [stdout]     |             ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_prev_fetched`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.23s
[INFO] running `Command { std: "docker" "inspect" "a2690a660b2c564a1f9931729698029787b617013df86f9910d0e7931bd14265", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2690a660b2c564a1f9931729698029787b617013df86f9910d0e7931bd14265", kill_on_drop: false }`
[INFO] [stdout] a2690a660b2c564a1f9931729698029787b617013df86f9910d0e7931bd14265
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] [stdout] 3302e08399802709bab734edb069e2185ed9922d9544762a8cef018d92731bdd
[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" "3302e08399802709bab734edb069e2185ed9922d9544762a8cef018d92731bdd", kill_on_drop: false }`
[INFO] [stderr]    Compiling platter-walk v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `prev_fetched`
[INFO] [stdout]    --> src/lib.rs:207:13
[INFO] [stdout]     |
[INFO] [stdout] 207 |         let prev_fetched = self.prefetched.len();
[INFO] [stdout]     |             ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_prev_fetched`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `prev_fetched`
[INFO] [stdout]    --> src/lib.rs:207:13
[INFO] [stdout]     |
[INFO] [stdout] 207 |         let prev_fetched = self.prefetched.len();
[INFO] [stdout]     |             ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_prev_fetched`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.74s
[INFO] running `Command { std: "docker" "inspect" "3302e08399802709bab734edb069e2185ed9922d9544762a8cef018d92731bdd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3302e08399802709bab734edb069e2185ed9922d9544762a8cef018d92731bdd", kill_on_drop: false }`
[INFO] [stdout] 3302e08399802709bab734edb069e2185ed9922d9544762a8cef018d92731bdd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 83b040d02d73287dff0b482e7d94533db181779a177c4e8c9479f555237a0d4e
[INFO] running `Command { std: "docker" "start" "-a" "83b040d02d73287dff0b482e7d94533db181779a177c4e8c9479f555237a0d4e", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `prev_fetched`
[INFO] [stderr]    --> src/lib.rs:207:13
[INFO] [stderr]     |
[INFO] [stderr] 207 |         let prev_fetched = self.prefetched.len();
[INFO] [stderr]     |             ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_prev_fetched`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `platter-walk` (lib) generated 1 warning
[INFO] [stderr] warning: `platter-walk` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/platter_walk-f1a2575445b2ae0c)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests platter-walk
[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] [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" "83b040d02d73287dff0b482e7d94533db181779a177c4e8c9479f555237a0d4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "83b040d02d73287dff0b482e7d94533db181779a177c4e8c9479f555237a0d4e", kill_on_drop: false }`
[INFO] [stdout] 83b040d02d73287dff0b482e7d94533db181779a177c4e8c9479f555237a0d4e