[INFO] cloning repository https://github.com/arthurprs/burst-trie
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/arthurprs/burst-trie" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farthurprs%2Fburst-trie", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farthurprs%2Fburst-trie'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d0c895a75d2e0db2a691e33b14811eccd64fd5dd
[INFO] checking arthurprs/burst-trie against try#72f88fc4e9458f89516a0b8b0868f3718aec5b47 for pr-74989
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farthurprs%2Fburst-trie" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/arthurprs/burst-trie on toolchain 72f88fc4e9458f89516a0b8b0868f3718aec5b47
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+72f88fc4e9458f89516a0b8b0868f3718aec5b47" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/arthurprs/burst-trie
[INFO] finished tweaking git repo https://github.com/arthurprs/burst-trie
[INFO] tweaked toml for git repo https://github.com/arthurprs/burst-trie written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/arthurprs/burst-trie already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+72f88fc4e9458f89516a0b8b0868f3718aec5b47" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+72f88fc4e9458f89516a0b8b0868f3718aec5b47" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 171496fc95f9ccb5094580d4c628fda03c68b4510cc51efddb30c3e9fa82b672
[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" "171496fc95f9ccb5094580d4c628fda03c68b4510cc51efddb30c3e9fa82b672", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "171496fc95f9ccb5094580d4c628fda03c68b4510cc51efddb30c3e9fa82b672", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "171496fc95f9ccb5094580d4c628fda03c68b4510cc51efddb30c3e9fa82b672", kill_on_drop: false }`
[INFO] [stdout] 171496fc95f9ccb5094580d4c628fda03c68b4510cc51efddb30c3e9fa82b672
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+72f88fc4e9458f89516a0b8b0868f3718aec5b47" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 515c775760cdf202f970e755382cdbe2b9d001c912a0ed94f46c6fdcee79e012
[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" "515c775760cdf202f970e755382cdbe2b9d001c912a0ed94f46c6fdcee79e012", kill_on_drop: false }`
[INFO] [stderr]     Checking rand v0.3.14
[INFO] [stderr]     Checking burst_trie v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]    --> src/bench_macros.rs:130:1
[INFO] [stdout]     |
[INFO] [stdout] 130 | / macro_rules! map_iter_bench {
[INFO] [stdout] 131 | |     ($name: ident, $min_len: expr, $max_len: expr, $map_len: expr, $map_type: ident, $key_prefix: expr) => (
[INFO] [stdout] 132 | |         #[bench]
[INFO] [stdout] 133 | |         fn $name(b: &mut test::Bencher) {
[INFO] [stdout] ...   |
[INFO] [stdout] 156 | |     );
[INFO] [stdout] 157 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]    --> src/bench_macros.rs:159:1
[INFO] [stdout]     |
[INFO] [stdout] 159 | / macro_rules! map_range_bench {
[INFO] [stdout] 160 | |     ($name: ident, $min_len: expr, $max_len: expr, $map_len: expr, $map_type: ident, $key_prefix: expr) => (
[INFO] [stdout] 161 | |         #[bench]
[INFO] [stdout] 162 | |         fn $name(b: &mut test::Bencher) {
[INFO] [stdout] ...   |
[INFO] [stdout] 191 | |     );
[INFO] [stdout] 192 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt`
[INFO] [stdout]   --> src/map.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | use std::fmt;
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BurstTrieNode`
[INFO] [stdout]     --> src/map.rs:1159:31
[INFO] [stdout]      |
[INFO] [stdout] 1159 |     use super::{BurstTrieMap, BurstTrieNode};
[INFO] [stdout]      |                               ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::Bound`
[INFO] [stdout]     --> src/map.rs:1160:9
[INFO] [stdout]      |
[INFO] [stdout] 1160 |     use std::collections::Bound;
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt`
[INFO] [stdout]   --> src/map.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | use std::fmt;
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'rustc_private': this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via `Cargo.toml` instead?
[INFO] [stdout]  --> src/bin/mem.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | extern crate libc;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #27812 <https://github.com/rust-lang/rust/issues/27812> for more information
[INFO] [stdout]   = help: add `#![feature(rustc_private)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'rustc_private': this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via `Cargo.toml` instead?
[INFO] [stdout]   --> src/bin/mem.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | use libc::*;
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #27812 <https://github.com/rust-lang/rust/issues/27812> for more information
[INFO] [stdout]    = help: add `#![feature(rustc_private)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'rustc_private': this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via `Cargo.toml` instead?
[INFO] [stdout]   --> src/bin/mem.rs:16:71
[INFO] [stdout]    |
[INFO] [stdout] 16 | extern {fn je_stats_print (write_cb: extern fn (*const c_void, *const c_char), cbopaque: *const c_void, opts: *const c_char);}
[INFO] [stdout]    |                                                                       ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #27812 <https://github.com/rust-lang/rust/issues/27812> for more information
[INFO] [stdout]    = help: add `#![feature(rustc_private)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'rustc_private': this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via `Cargo.toml` instead?
[INFO] [stdout]   --> src/bin/mem.rs:16:118
[INFO] [stdout]    |
[INFO] [stdout] 16 | extern {fn je_stats_print (write_cb: extern fn (*const c_void, *const c_char), cbopaque: *const c_void, opts: *const c_char);}
[INFO] [stdout]    |                                                                                                                      ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #27812 <https://github.com/rust-lang/rust/issues/27812> for more information
[INFO] [stdout]    = help: add `#![feature(rustc_private)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'rustc_private': this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via `Cargo.toml` instead?
[INFO] [stdout]   --> src/bin/mem.rs:17:55
[INFO] [stdout]    |
[INFO] [stdout] 17 | extern fn write_cb (_: *const c_void, message: *const c_char) {
[INFO] [stdout]    |                                                       ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #27812 <https://github.com/rust-lang/rust/issues/27812> for more information
[INFO] [stdout]    = help: add `#![feature(rustc_private)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'rustc_private': this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via `Cargo.toml` instead?
[INFO] [stdout]  --> src/bin/mem.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | extern crate libc;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #27812 <https://github.com/rust-lang/rust/issues/27812> for more information
[INFO] [stdout]   = help: add `#![feature(rustc_private)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'rustc_private': this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via `Cargo.toml` instead?
[INFO] [stdout]   --> src/bin/mem.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | use libc::*;
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #27812 <https://github.com/rust-lang/rust/issues/27812> for more information
[INFO] [stdout]    = help: add `#![feature(rustc_private)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'rustc_private': this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via `Cargo.toml` instead?
[INFO] [stdout]   --> src/bin/mem.rs:16:71
[INFO] [stdout]    |
[INFO] [stdout] 16 | extern {fn je_stats_print (write_cb: extern fn (*const c_void, *const c_char), cbopaque: *const c_void, opts: *const c_char);}
[INFO] [stdout]    |                                                                       ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #27812 <https://github.com/rust-lang/rust/issues/27812> for more information
[INFO] [stdout]    = help: add `#![feature(rustc_private)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'rustc_private': this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via `Cargo.toml` instead?
[INFO] [stdout]   --> src/bin/mem.rs:16:118
[INFO] [stdout]    |
[INFO] [stdout] 16 | extern {fn je_stats_print (write_cb: extern fn (*const c_void, *const c_char), cbopaque: *const c_void, opts: *const c_char);}
[INFO] [stdout]    |                                                                                                                      ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #27812 <https://github.com/rust-lang/rust/issues/27812> for more information
[INFO] [stdout]    = help: add `#![feature(rustc_private)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'rustc_private': this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via `Cargo.toml` instead?
[INFO] [stdout]   --> src/bin/mem.rs:17:55
[INFO] [stdout]    |
[INFO] [stdout] 17 | extern fn write_cb (_: *const c_void, message: *const c_char) {
[INFO] [stdout]    |                                                       ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #27812 <https://github.com/rust-lang/rust/issues/27812> for more information
[INFO] [stdout]    = help: add `#![feature(rustc_private)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0658`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0658`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `burst_trie`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: the feature `collections_bound` has been stable since 1.17.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:3:27
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![cfg_attr(test, feature(collections_bound))]
[INFO] [stdout]   |                           ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `btree_range` has been stable since 1.17.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:4:27
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![cfg_attr(test, feature(btree_range))]
[INFO] [stdout]   |                           ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "515c775760cdf202f970e755382cdbe2b9d001c912a0ed94f46c6fdcee79e012", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "515c775760cdf202f970e755382cdbe2b9d001c912a0ed94f46c6fdcee79e012", kill_on_drop: false }`
[INFO] [stdout] 515c775760cdf202f970e755382cdbe2b9d001c912a0ed94f46c6fdcee79e012
