[INFO] fetching crate potpack 0.1.2...
[INFO] testing potpack-0.1.2 against beta-2021-08-01 for beta-1.55-1
[INFO] extracting crate potpack 0.1.2 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate potpack 0.1.2 on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate potpack 0.1.2
[INFO] finished tweaking crates.io crate potpack 0.1.2
[INFO] tweaked toml for crates.io crate potpack 0.1.2 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate potpack 0.1.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "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] c7fa3047757d9c95e313cca5a71f29d64db0c28447372f48ce77f8bc67a61613
[INFO] running `Command { std: "docker" "start" "-a" "c7fa3047757d9c95e313cca5a71f29d64db0c28447372f48ce77f8bc67a61613", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c7fa3047757d9c95e313cca5a71f29d64db0c28447372f48ce77f8bc67a61613", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c7fa3047757d9c95e313cca5a71f29d64db0c28447372f48ce77f8bc67a61613", kill_on_drop: false }`
[INFO] [stdout] c7fa3047757d9c95e313cca5a71f29d64db0c28447372f48ce77f8bc67a61613
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "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] bbbcd7e800bb1f0a5e1e2131bbd3ac1fb7a38c2895cfaf54dd13cca9db5a1395
[INFO] running `Command { std: "docker" "start" "-a" "bbbcd7e800bb1f0a5e1e2131bbd3ac1fb7a38c2895cfaf54dd13cca9db5a1395", kill_on_drop: false }`
[INFO] [stderr]    Compiling potpack v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `PotPack`, `SizedItem`, `approx_eq`
[INFO] [stdout]    --> src/lib.rs:192:9
[INFO] [stdout]     |
[INFO] [stdout] 192 |         approx_eq,
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout] 193 |         PotPack,
[INFO] [stdout]     |         ^^^^^^^
[INFO] [stdout] 194 |         SizedItem
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: cannot borrow `spaces` as mutable because it is also borrowed as immutable
[INFO] [stdout]    --> src/lib.rs:155:21
[INFO] [stdout]     |
[INFO] [stdout] 104 |             for (i, space) in spaces.iter().enumerate().rev() {
[INFO] [stdout]     |                               ------ immutable borrow occurs here
[INFO] [stdout] ...
[INFO] [stdout] 155 |                     spaces.push(Space {
[INFO] [stdout]     |                     ^^^^^^ mutable borrow occurs here
[INFO] [stdout] 156 |                         id: space.id,
[INFO] [stdout]     |                             -------- immutable borrow later used here
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default
[INFO] [stdout]     = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stdout]     = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.48s
[INFO] running `Command { std: "docker" "inspect" "bbbcd7e800bb1f0a5e1e2131bbd3ac1fb7a38c2895cfaf54dd13cca9db5a1395", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bbbcd7e800bb1f0a5e1e2131bbd3ac1fb7a38c2895cfaf54dd13cca9db5a1395", kill_on_drop: false }`
[INFO] [stdout] bbbcd7e800bb1f0a5e1e2131bbd3ac1fb7a38c2895cfaf54dd13cca9db5a1395
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "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] d15b4a7f8110986c8fd33b85b7fa58c2bb13a701b7e4c2aceeaaec3ffba43053
[INFO] running `Command { std: "docker" "start" "-a" "d15b4a7f8110986c8fd33b85b7fa58c2bb13a701b7e4c2aceeaaec3ffba43053", kill_on_drop: false }`
[INFO] [stdout] warning: unused imports: `PotPack`, `SizedItem`, `approx_eq`
[INFO] [stdout]    --> src/lib.rs:192:9
[INFO] [stdout]     |
[INFO] [stdout] 192 |         approx_eq,
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout] 193 |         PotPack,
[INFO] [stdout]     |         ^^^^^^^
[INFO] [stdout] 194 |         SizedItem
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling potpack v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: cannot borrow `spaces` as mutable because it is also borrowed as immutable
[INFO] [stdout]    --> src/lib.rs:155:21
[INFO] [stdout]     |
[INFO] [stdout] 104 |             for (i, space) in spaces.iter().enumerate().rev() {
[INFO] [stdout]     |                               ------ immutable borrow occurs here
[INFO] [stdout] ...
[INFO] [stdout] 155 |                     spaces.push(Space {
[INFO] [stdout]     |                     ^^^^^^ mutable borrow occurs here
[INFO] [stdout] 156 |                         id: space.id,
[INFO] [stdout]     |                             -------- immutable borrow later used here
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default
[INFO] [stdout]     = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stdout]     = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: cannot borrow `spaces` as mutable because it is also borrowed as immutable
[INFO] [stdout]    --> src/lib.rs:155:21
[INFO] [stdout]     |
[INFO] [stdout] 104 |             for (i, space) in spaces.iter().enumerate().rev() {
[INFO] [stdout]     |                               ------ immutable borrow occurs here
[INFO] [stdout] ...
[INFO] [stdout] 155 |                     spaces.push(Space {
[INFO] [stdout]     |                     ^^^^^^ mutable borrow occurs here
[INFO] [stdout] 156 |                         id: space.id,
[INFO] [stdout]     |                             -------- immutable borrow later used here
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default
[INFO] [stdout]     = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stdout]     = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.66s
[INFO] running `Command { std: "docker" "inspect" "d15b4a7f8110986c8fd33b85b7fa58c2bb13a701b7e4c2aceeaaec3ffba43053", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d15b4a7f8110986c8fd33b85b7fa58c2bb13a701b7e4c2aceeaaec3ffba43053", kill_on_drop: false }`
[INFO] [stdout] d15b4a7f8110986c8fd33b85b7fa58c2bb13a701b7e4c2aceeaaec3ffba43053
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 27ad7b0661d21de2537a00ab6aa8e5a8beb9f82b0cc93019f6bff237735cfe20
[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" "27ad7b0661d21de2537a00ab6aa8e5a8beb9f82b0cc93019f6bff237735cfe20", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused imports: `PotPack`, `SizedItem`, `approx_eq`
[INFO] [stderr]    --> src/lib.rs:192:9
[INFO] [stderr]     |
[INFO] [stderr] 192 |         approx_eq,
[INFO] [stderr]     |         ^^^^^^^^^
[INFO] [stderr] 193 |         PotPack,
[INFO] [stderr]     |         ^^^^^^^
[INFO] [stderr] 194 |         SizedItem
[INFO] [stderr]     |         ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: cannot borrow `spaces` as mutable because it is also borrowed as immutable
[INFO] [stderr]    --> src/lib.rs:155:21
[INFO] [stderr]     |
[INFO] [stderr] 104 |             for (i, space) in spaces.iter().enumerate().rev() {
[INFO] [stderr]     |                               ------ immutable borrow occurs here
[INFO] [stderr] ...
[INFO] [stderr] 155 |                     spaces.push(Space {
[INFO] [stderr]     |                     ^^^^^^ mutable borrow occurs here
[INFO] [stderr] 156 |                         id: space.id,
[INFO] [stderr]     |                             -------- immutable borrow later used here
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default
[INFO] [stderr]     = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stderr]     = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stderr] 
[INFO] [stderr] warning: `potpack` (lib) generated 2 warnings
[INFO] [stderr] warning: `potpack` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/potpack-2666d9083337f91b)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests potpack
[INFO] [stdout] running 2 tests
[INFO] [stdout] test tests::test_approx_eq ... ok
[INFO] [stdout] test tests::test_packing ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[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" "27ad7b0661d21de2537a00ab6aa8e5a8beb9f82b0cc93019f6bff237735cfe20", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "27ad7b0661d21de2537a00ab6aa8e5a8beb9f82b0cc93019f6bff237735cfe20", kill_on_drop: false }`
[INFO] [stdout] 27ad7b0661d21de2537a00ab6aa8e5a8beb9f82b0cc93019f6bff237735cfe20
