[INFO] fetching crate hamst 0.1.0...
[INFO] testing hamst-0.1.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate hamst 0.1.0 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate hamst 0.1.0 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate hamst 0.1.0
[INFO] finished tweaking crates.io crate hamst 0.1.0
[INFO] tweaked toml for crates.io crate hamst 0.1.0 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2374bcede91a63d68227518b86f7cfd740627ed1e346d90536f15623c50b522d
[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" "2374bcede91a63d68227518b86f7cfd740627ed1e346d90536f15623c50b522d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2374bcede91a63d68227518b86f7cfd740627ed1e346d90536f15623c50b522d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2374bcede91a63d68227518b86f7cfd740627ed1e346d90536f15623c50b522d", kill_on_drop: false }`
[INFO] [stdout] 2374bcede91a63d68227518b86f7cfd740627ed1e346d90536f15623c50b522d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 92f3b804be5c6f7887e48396eda1e44522000d670c1a05f6780e58c96559152e
[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" "92f3b804be5c6f7887e48396eda1e44522000d670c1a05f6780e58c96559152e", kill_on_drop: false }`
[INFO] [stderr]    Compiling hamst v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.18s
[INFO] running `Command { std: "docker" "inspect" "92f3b804be5c6f7887e48396eda1e44522000d670c1a05f6780e58c96559152e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92f3b804be5c6f7887e48396eda1e44522000d670c1a05f6780e58c96559152e", kill_on_drop: false }`
[INFO] [stdout] 92f3b804be5c6f7887e48396eda1e44522000d670c1a05f6780e58c96559152e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 527bc3d26277c3e702183af6d69c445dba2540b5295b14358206a3836936da3b
[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" "527bc3d26277c3e702183af6d69c445dba2540b5295b14358206a3836936da3b", kill_on_drop: false }`
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling quickcheck_macros v0.9.1
[INFO] [stderr]    Compiling quickcheck v0.9.2
[INFO] [stderr]    Compiling hamst v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 10.42s
[INFO] running `Command { std: "docker" "inspect" "527bc3d26277c3e702183af6d69c445dba2540b5295b14358206a3836936da3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "527bc3d26277c3e702183af6d69c445dba2540b5295b14358206a3836936da3b", kill_on_drop: false }`
[INFO] [stdout] 527bc3d26277c3e702183af6d69c445dba2540b5295b14358206a3836936da3b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c102700eb732c129f613ab381b819a6d18193e964c2671fb1e2ef146cb7a3ef6
[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" "c102700eb732c129f613ab381b819a6d18193e964c2671fb1e2ef146cb7a3ef6", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/hamst-c94902dddbf54934
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test hash::tests::hash_is_deterministic ... ok
[INFO] [stdout] test tests::delete_key_not_exist ... ok
[INFO] [stdout] test tests::delete ... ok
[INFO] [stdout] test tests::delete_value_not_match ... ok
[INFO] [stdout] test tests::dup_insert ... ok
[INFO] [stdout] test tests::empty_size ... ok
[INFO] [stdout] test tests::insert_lookup ... ok
[INFO] [stdout] test tests::insert_equivalent ... ok
[INFO] [stdout] test tests::iter_equivalent ... ok
[INFO] [stdout] test tests::plan_equivalent ... ok
[INFO] [stdout] test tests::large_insert_equivalent ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests hamst
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/hamt.rs - hamt (line 8) ... ignored
[INFO] [stdout] test src/immutable.rs - immutable::Hamt<K, V, H>::mutate_freeze (line 68) ... FAILED
[INFO] [stdout] test src/hamt.rs - hamt (line 14) ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/immutable.rs - immutable::Hamt<K, V, H>::mutate_freeze (line 68) stdout ----
[INFO] [stdout] error[E0425]: cannot find value `reference` in this scope
[INFO] [stdout]  --> src/immutable.rs:73:14
[INFO] [stdout]   |
[INFO] [stdout] 7 | let result = reference.freeze(|x| {
[INFO] [stdout]   |              ^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/immutable.rs - immutable::Hamt<K, V, H>::mutate_freeze (line 68)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 1 passed; 1 failed; 1 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "c102700eb732c129f613ab381b819a6d18193e964c2671fb1e2ef146cb7a3ef6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c102700eb732c129f613ab381b819a6d18193e964c2671fb1e2ef146cb7a3ef6", kill_on_drop: false }`
[INFO] [stdout] c102700eb732c129f613ab381b819a6d18193e964c2671fb1e2ef146cb7a3ef6