[INFO] fetching crate hexavalent 0.1.5...
[INFO] checking hexavalent-0.1.5 against try#b2f80f6008cdafc35b4472bd46afa16cc6b0cd63 for pr-79470
[INFO] extracting crate hexavalent 0.1.5 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate hexavalent 0.1.5 on toolchain b2f80f6008cdafc35b4472bd46afa16cc6b0cd63
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-10/source/.cargo/config
[INFO] started tweaking crates.io crate hexavalent 0.1.5
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate hexavalent 0.1.5
[INFO] tweaked toml for crates.io crate hexavalent 0.1.5 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate crates.io crate hexavalent 0.1.5 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a6cb08042b6893c934d13d1c20a8a69f8a3c1197a83505698adf4fe0c2d5fae3
[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" "a6cb08042b6893c934d13d1c20a8a69f8a3c1197a83505698adf4fe0c2d5fae3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a6cb08042b6893c934d13d1c20a8a69f8a3c1197a83505698adf4fe0c2d5fae3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6cb08042b6893c934d13d1c20a8a69f8a3c1197a83505698adf4fe0c2d5fae3", kill_on_drop: false }`
[INFO] [stdout] a6cb08042b6893c934d13d1c20a8a69f8a3c1197a83505698adf4fe0c2d5fae3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 36a5f31bf79b327c4eccdb7fdedc9ae0ea339d545e5c7641d627ee6ba24dc7eb
[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" "36a5f31bf79b327c4eccdb7fdedc9ae0ea339d545e5c7641d627ee6ba24dc7eb", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling syn v1.0.50
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling standback v0.2.13
[INFO] [stderr]    Compiling time v0.2.23
[INFO] [stderr]    Compiling time-macros-impl v0.1.1
[INFO] [stderr]     Checking time-macros v0.1.1
[INFO] [stderr]     Checking hexavalent v0.1.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable `pub` item
[INFO] [stdout]   --> src/info.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 32 |     pub trait FromInfoValue: Sized {
[INFO] [stdout]    |     ---^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     help: consider restricting its visibility: `pub(crate)`
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:98:5
[INFO] [stdout]    |
[INFO] [stdout] 98 |     unreachable_pub,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    = help: or consider exporting it for use by other crates
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable `pub` item
[INFO] [stdout]   --> src/list.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub trait FromListElem: Sized {
[INFO] [stdout]    |     ---^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     help: consider restricting its visibility: `pub(crate)`
[INFO] [stdout]    |
[INFO] [stdout]    = help: or consider exporting it for use by other crates
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable `pub` item
[INFO] [stdout]   --> src/pref.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 |     pub enum PrefValue<'a> {
[INFO] [stdout]    |     ---^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     help: consider restricting its visibility: `pub(crate)`
[INFO] [stdout]    |
[INFO] [stdout]    = help: or consider exporting it for use by other crates
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable `pub` item
[INFO] [stdout]   --> src/pref.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 41 |     pub trait FromPrefValue: Sized {
[INFO] [stdout]    |     ---^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     help: consider restricting its visibility: `pub(crate)`
[INFO] [stdout]    |
[INFO] [stdout]    = help: or consider exporting it for use by other crates
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable `pub` item
[INFO] [stdout]   --> src/info.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 32 |     pub trait FromInfoValue: Sized {
[INFO] [stdout]    |     ---^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     help: consider restricting its visibility: `pub(crate)`
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:98:5
[INFO] [stdout]    |
[INFO] [stdout] 98 |     unreachable_pub,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    = help: or consider exporting it for use by other crates
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable `pub` item
[INFO] [stdout]   --> src/list.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub trait FromListElem: Sized {
[INFO] [stdout]    |     ---^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     help: consider restricting its visibility: `pub(crate)`
[INFO] [stdout]    |
[INFO] [stdout]    = help: or consider exporting it for use by other crates
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable `pub` item
[INFO] [stdout]   --> src/pref.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 |     pub enum PrefValue<'a> {
[INFO] [stdout]    |     ---^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     help: consider restricting its visibility: `pub(crate)`
[INFO] [stdout]    |
[INFO] [stdout]    = help: or consider exporting it for use by other crates
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable `pub` item
[INFO] [stdout]   --> src/pref.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 41 |     pub trait FromPrefValue: Sized {
[INFO] [stdout]    |     ---^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     help: consider restricting its visibility: `pub(crate)`
[INFO] [stdout]    |
[INFO] [stdout]    = help: or consider exporting it for use by other crates
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.39s
[INFO] running `Command { std: "docker" "inspect" "36a5f31bf79b327c4eccdb7fdedc9ae0ea339d545e5c7641d627ee6ba24dc7eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36a5f31bf79b327c4eccdb7fdedc9ae0ea339d545e5c7641d627ee6ba24dc7eb", kill_on_drop: false }`
[INFO] [stdout] 36a5f31bf79b327c4eccdb7fdedc9ae0ea339d545e5c7641d627ee6ba24dc7eb