[INFO] fetching crate hamst 0.1.0...
[INFO] testing hamst-0.1.0 against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] extracting crate hamst 0.1.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate hamst 0.1.0 on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", 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-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e724548c75b505bf38ac8dff2c506b2a9a3897930bec3664a0d90929982f2a7e
[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" "e724548c75b505bf38ac8dff2c506b2a9a3897930bec3664a0d90929982f2a7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e724548c75b505bf38ac8dff2c506b2a9a3897930bec3664a0d90929982f2a7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e724548c75b505bf38ac8dff2c506b2a9a3897930bec3664a0d90929982f2a7e", kill_on_drop: false }`
[INFO] [stdout] e724548c75b505bf38ac8dff2c506b2a9a3897930bec3664a0d90929982f2a7e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9a5631bc9409d183693c780d8d21a1867eb45083961aa494b96072723124d188
[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" "9a5631bc9409d183693c780d8d21a1867eb45083961aa494b96072723124d188", kill_on_drop: false }`
[INFO] [stderr]    Compiling hamst v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.91s
[INFO] running `Command { std: "docker" "inspect" "9a5631bc9409d183693c780d8d21a1867eb45083961aa494b96072723124d188", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a5631bc9409d183693c780d8d21a1867eb45083961aa494b96072723124d188", kill_on_drop: false }`
[INFO] [stdout] 9a5631bc9409d183693c780d8d21a1867eb45083961aa494b96072723124d188
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e01bbfd2014cf9fc2ac528c0953f41615250dbba258fdac17bde09076f3a0e8b
[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" "e01bbfd2014cf9fc2ac528c0953f41615250dbba258fdac17bde09076f3a0e8b", kill_on_drop: false }`
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling ppv-lite86 v0.2.15
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling quickcheck v0.9.2
[INFO] [stderr]    Compiling quickcheck_macros v0.9.1
[INFO] [stderr]    Compiling hamst v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 34.34s
[INFO] running `Command { std: "docker" "inspect" "e01bbfd2014cf9fc2ac528c0953f41615250dbba258fdac17bde09076f3a0e8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e01bbfd2014cf9fc2ac528c0953f41615250dbba258fdac17bde09076f3a0e8b", kill_on_drop: false }`
[INFO] [stdout] e01bbfd2014cf9fc2ac528c0953f41615250dbba258fdac17bde09076f3a0e8b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d74dc1137ca2d21ac492a1ce7adb2fcac320fcc6e789e91851341ebec16ac39f
[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" "d74dc1137ca2d21ac492a1ce7adb2fcac320fcc6e789e91851341ebec16ac39f", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stdout] running 11 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/hamst-c5c045bfb9d55a61)
[INFO] [stdout] test tests::delete ... ok
[INFO] [stdout] test tests::delete_key_not_exist ... ok
[INFO] [stdout] test tests::empty_size ... ok
[INFO] [stdout] test hash::tests::hash_is_deterministic ... ok
[INFO] [stdout] test tests::delete_value_not_match ... ok
[INFO] [stdout] test tests::dup_insert ... 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; finished in 15.78s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests hamst
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/hamt.rs - hamt::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::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; finished in 0.93s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "d74dc1137ca2d21ac492a1ce7adb2fcac320fcc6e789e91851341ebec16ac39f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d74dc1137ca2d21ac492a1ce7adb2fcac320fcc6e789e91851341ebec16ac39f", kill_on_drop: false }`
[INFO] [stdout] d74dc1137ca2d21ac492a1ce7adb2fcac320fcc6e789e91851341ebec16ac39f