[INFO] fetching crate vault-credentials 1.0.2...
[INFO] testing vault-credentials-1.0.2 against try#0abe69e6c16114311cc2700e972492e64d69c28f for pr-154065
[INFO] extracting crate vault-credentials 1.0.2 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate vault-credentials 1.0.2
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate vault-credentials 1.0.2
[INFO] tweaked toml for crates.io crate vault-credentials 1.0.2 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate vault-credentials 1.0.2 on toolchain 0abe69e6c16114311cc2700e972492e64d69c28f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate vault-credentials 1.0.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 772d7caa23f1c20f5cb17245b22c70d8bae0aa4f0bab1954b46df79a5ad7d578
[INFO] running `Command { std: "docker" "start" "-a" "772d7caa23f1c20f5cb17245b22c70d8bae0aa4f0bab1954b46df79a5ad7d578", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "772d7caa23f1c20f5cb17245b22c70d8bae0aa4f0bab1954b46df79a5ad7d578", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "772d7caa23f1c20f5cb17245b22c70d8bae0aa4f0bab1954b46df79a5ad7d578", kill_on_drop: false }`
[INFO] [stdout] 772d7caa23f1c20f5cb17245b22c70d8bae0aa4f0bab1954b46df79a5ad7d578
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1ff106a5967bfb7fc8812e3880665fca6e5760512716662ed4b363b58634ae06
[INFO] running `Command { std: "docker" "start" "-a" "1ff106a5967bfb7fc8812e3880665fca6e5760512716662ed4b363b58634ae06", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.103
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling pkg-config v0.3.20
[INFO] [stderr]    Compiling syn v1.0.80
[INFO] [stderr]    Compiling cc v1.0.71
[INFO] [stderr]    Compiling pin-project-lite v0.2.7
[INFO] [stderr]    Compiling futures-core v0.3.17
[INFO] [stderr]    Compiling once_cell v1.8.0
[INFO] [stderr]    Compiling instant v0.1.11
[INFO] [stderr]    Compiling smallvec v1.7.0
[INFO] [stderr]    Compiling lock_api v0.4.5
[INFO] [stderr]    Compiling futures-task v0.3.17
[INFO] [stderr]    Compiling openssl v0.10.36
[INFO] [stderr]    Compiling tracing-core v0.1.21
[INFO] [stderr]    Compiling http v0.2.5
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling futures-channel v0.3.17
[INFO] [stderr]    Compiling futures-sink v0.3.17
[INFO] [stderr]    Compiling native-tls v0.2.8
[INFO] [stderr]    Compiling httparse v1.5.1
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling matches v0.1.9
[INFO] [stderr]    Compiling tinyvec v1.5.0
[INFO] [stderr]    Compiling tokio v1.12.0
[INFO] [stderr]    Compiling futures-util v0.3.17
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling openssl-probe v0.1.4
[INFO] [stderr]    Compiling slab v0.4.4
[INFO] [stderr]    Compiling try-lock v0.2.3
[INFO] [stderr]    Compiling want v0.3.0
[INFO] [stderr]    Compiling form_urlencoded v1.0.1
[INFO] [stderr]    Compiling tracing v0.1.29
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]    Compiling mio v0.7.13
[INFO] [stderr]    Compiling signal-hook-registry v1.4.0
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling socket2 v0.4.2
[INFO] [stderr]    Compiling tower-service v0.3.1
[INFO] [stderr]    Compiling serde_json v1.0.68
[INFO] [stderr]    Compiling encoding_rs v0.8.28
[INFO] [stderr]    Compiling httpdate v1.0.1
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling mime v0.3.16
[INFO] [stderr]    Compiling parking_lot v0.11.2
[INFO] [stderr]    Compiling ipnet v2.3.1
[INFO] [stderr]    Compiling openssl-sys v0.9.67
[INFO] [stderr]    Compiling unicode-normalization v0.1.19
[INFO] [stderr]    Compiling http-body v0.4.3
[INFO] [stderr]    Compiling idna v0.2.3
[INFO] [stderr]    Compiling url v2.2.2
[INFO] [stderr]    Compiling serde_urlencoded v0.7.0
[INFO] [stderr]    Compiling tokio-macros v1.4.1
[INFO] [stderr]    Compiling tokio-util v0.6.8
[INFO] [stderr]    Compiling tokio-native-tls v0.3.0
[INFO] [stderr]    Compiling h2 v0.3.6
[INFO] [stderr]    Compiling hyper v0.14.13
[INFO] [stderr]    Compiling hyper-tls v0.5.0
[INFO] [stderr]    Compiling reqwest v0.11.5
[INFO] [stderr]    Compiling vault-credentials v1.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 26.50s
[INFO] running `Command { std: "docker" "inspect" "1ff106a5967bfb7fc8812e3880665fca6e5760512716662ed4b363b58634ae06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ff106a5967bfb7fc8812e3880665fca6e5760512716662ed4b363b58634ae06", kill_on_drop: false }`
[INFO] [stdout] 1ff106a5967bfb7fc8812e3880665fca6e5760512716662ed4b363b58634ae06
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 654af3a44854e11216b70d849b8a67bb8728b8655e0af4c69d3de1ab97dd14ef
[INFO] running `Command { std: "docker" "start" "-a" "654af3a44854e11216b70d849b8a67bb8728b8655e0af4c69d3de1ab97dd14ef", kill_on_drop: false }`
[INFO] [stderr]    Compiling dotenv v0.15.0
[INFO] [stderr]    Compiling vault-credentials v1.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.43s
[INFO] running `Command { std: "docker" "inspect" "654af3a44854e11216b70d849b8a67bb8728b8655e0af4c69d3de1ab97dd14ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "654af3a44854e11216b70d849b8a67bb8728b8655e0af4c69d3de1ab97dd14ef", kill_on_drop: false }`
[INFO] [stdout] 654af3a44854e11216b70d849b8a67bb8728b8655e0af4c69d3de1ab97dd14ef
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 014cf0629fd411be6be5a7d066cff349eaad904bfb285e82764522b8e1a62556
[INFO] running `Command { std: "docker" "start" "-a" "014cf0629fd411be6be5a7d066cff349eaad904bfb285e82764522b8e1a62556", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.12s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/vault_credentials-b07e7409ca851f06)
[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] [stderr]    Doc-tests vault_credentials
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - initialize (line 12) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - initialize (line 12) stdout ----
[INFO] [stdout] Test executable failed (exit status: 101).
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] 
[INFO] [stdout] thread 'main' (47) panicked at src/credentials.rs:12:14:
[INFO] [stdout] Cannot get environment variable VAULT_ADDR: NotPresent
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5d66c53de99a - std[ec4e911328de40a6]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stdout]                                at /rustc/0abe69e6c16114311cc2700e972492e64d69c28f/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x5d66c53de99a - std[ec4e911328de40a6]::backtrace_rs::backtrace::trace_unsynchronized::<std[ec4e911328de40a6]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stdout]                                at /rustc/0abe69e6c16114311cc2700e972492e64d69c28f/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x5d66c53de99a - std[ec4e911328de40a6]::sys::backtrace::_print_fmt
[INFO] [stdout]                                at /rustc/0abe69e6c16114311cc2700e972492e64d69c28f/library/std/src/sys/backtrace.rs:74:9
[INFO] [stdout]    3:     0x5d66c53de99a - <<std[ec4e911328de40a6]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[a96a4c5c53f902a3]::fmt::Display>::fmt
[INFO] [stdout]                                at /rustc/0abe69e6c16114311cc2700e972492e64d69c28f/library/std/src/sys/backtrace.rs:44:26
[INFO] [stdout]    4:     0x5d66c53f3c3a - <core[a96a4c5c53f902a3]::fmt::rt::Argument>::fmt
[INFO] [stdout]                                at /rustc/0abe69e6c16114311cc2700e972492e64d69c28f/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x5d66c53f3c3a - core[a96a4c5c53f902a3]::fmt::write
[INFO] [stdout]    6:     0x5d66c53e2fe2 - std[ec4e911328de40a6]::io::default_write_fmt::<std[ec4e911328de40a6]::sys::stdio::unix::Stderr>
[INFO] [stdout]                                at /rustc/0abe69e6c16114311cc2700e972492e64d69c28f/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x5d66c53e2fe2 - <std[ec4e911328de40a6]::sys::stdio::unix::Stderr as std[ec4e911328de40a6]::io::Write>::write_fmt
[INFO] [stdout]                                at /rustc/0abe69e6c16114311cc2700e972492e64d69c28f/library/std/src/io/mod.rs:1994:13
[INFO] [stdout]    8:     0x5d66c53c6fef - <std[ec4e911328de40a6]::sys::backtrace::BacktraceLock>::print
[INFO] [stdout]                                at /rustc/0abe69e6c16114311cc2700e972492e64d69c28f/library/std/src/sys/backtrace.rs:47:9
[INFO] [stdout]    9:     0x5d66c53c6fef - std[ec4e911328de40a6]::panicking::default_hook::{closure#0}
[INFO] [stdout]                                at /rustc/0abe69e6c16114311cc2700e972492e64d69c28f/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x5d66c53d9121 - std[ec4e911328de40a6]::panicking::default_hook
[INFO] [stdout]                                at /rustc/0abe69e6c16114311cc2700e972492e64d69c28f/library/std/src/panicking.rs:319:9
[INFO] [stdout]   11:     0x5d66c53d939b - std[ec4e911328de40a6]::panicking::panic_with_hook
[INFO] [stdout]                                at /rustc/0abe69e6c16114311cc2700e972492e64d69c28f/library/std/src/panicking.rs:825:13
[INFO] [stdout]   12:     0x5d66c53c70a8 - std[ec4e911328de40a6]::panicking::panic_handler::{closure#0}
[INFO] [stdout]                                at /rustc/0abe69e6c16114311cc2700e972492e64d69c28f/library/std/src/panicking.rs:698:13
[INFO] [stdout]   13:     0x5d66c53be789 - std[ec4e911328de40a6]::sys::backtrace::__rust_end_short_backtrace::<std[ec4e911328de40a6]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]                                at /rustc/0abe69e6c16114311cc2700e972492e64d69c28f/library/std/src/sys/backtrace.rs:182:18
[INFO] [stdout]   14:     0x5d66c53c7c6d - __rustc[aa69f48705c57ca8]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/0abe69e6c16114311cc2700e972492e64d69c28f/library/std/src/panicking.rs:689:5
[INFO] [stdout]   15:     0x5d66c53f43fc - core[a96a4c5c53f902a3]::panicking::panic_fmt
[INFO] [stdout]                                at /rustc/0abe69e6c16114311cc2700e972492e64d69c28f/library/core/src/panicking.rs:80:14
[INFO] [stdout]   16:     0x5d66c53f4172 - core[a96a4c5c53f902a3]::result::unwrap_failed
[INFO] [stdout]                                at /rustc/0abe69e6c16114311cc2700e972492e64d69c28f/library/core/src/result.rs:1867:5
[INFO] [stdout]   17:     0x5d66c501f0be - <core[a96a4c5c53f902a3]::result::Result<alloc[c960326de6de28e6]::string::String, std[ec4e911328de40a6]::env::VarError>>::expect
[INFO] [stdout]                                at /rustc/0abe69e6c16114311cc2700e972492e64d69c28f/library/core/src/result.rs:1185:23
[INFO] [stdout]   18:     0x5d66c502814b - <vault_credentials[bd9cb0d4acb23501]::credentials::Credentials>::new
[INFO] [stdout]                                at /opt/rustwide/workdir/src/credentials.rs:12:14
[INFO] [stdout]   19:     0x5d66c5026643 - vault_credentials[bd9cb0d4acb23501]::initialize::{closure#0}
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:57:29
[INFO] [stdout]   20:     0x5d66c5000de6 - rust_out[c29997ca7713e474]::main::{closure#0}
[INFO] [stdout]   21:     0x5d66c5000626 - <tokio[5e61935daab4d7e6]::park::thread::CachedParkThread>::block_on::<rust_out[c29997ca7713e474]::main::{closure#0}>::{closure#0}
[INFO] [stdout]   22:     0x5d66c50008d8 - tokio[5e61935daab4d7e6]::coop::with_budget::<core[a96a4c5c53f902a3]::task::poll::Poll<()>, <tokio[5e61935daab4d7e6]::park::thread::CachedParkThread>::block_on<rust_out[c29997ca7713e474]::main::{closure#0}>::{closure#0}>::{closure#0}
[INFO] [stdout]   23:     0x5d66c4ffe6ea - <std[ec4e911328de40a6]::thread::local::LocalKey<core[a96a4c5c53f902a3]::cell::Cell<tokio[5e61935daab4d7e6]::coop::Budget>>>::try_with::<tokio[5e61935daab4d7e6]::coop::with_budget<core[a96a4c5c53f902a3]::task::poll::Poll<()>, <tokio[5e61935daab4d7e6]::park::thread::CachedParkThread>::block_on<rust_out[c29997ca7713e474]::main::{closure#0}>::{closure#0}>::{closure#0}, core[a96a4c5c53f902a3]::task::poll::Poll<()>>
[INFO] [stdout]   24:     0x5d66c4ffe4c6 - <std[ec4e911328de40a6]::thread::local::LocalKey<core[a96a4c5c53f902a3]::cell::Cell<tokio[5e61935daab4d7e6]::coop::Budget>>>::with::<tokio[5e61935daab4d7e6]::coop::with_budget<core[a96a4c5c53f902a3]::task::poll::Poll<()>, <tokio[5e61935daab4d7e6]::park::thread::CachedParkThread>::block_on<rust_out[c29997ca7713e474]::main::{closure#0}>::{closure#0}>::{closure#0}, core[a96a4c5c53f902a3]::task::poll::Poll<()>>
[INFO] [stdout]   25:     0x5d66c4ffef15 - <tokio[5e61935daab4d7e6]::park::thread::CachedParkThread>::block_on::<rust_out[c29997ca7713e474]::main::{closure#0}>
[INFO] [stdout]   26:     0x5d66c4fff12b - <tokio[5e61935daab4d7e6]::runtime::enter::Enter>::block_on::<rust_out[c29997ca7713e474]::main::{closure#0}>
[INFO] [stdout]   27:     0x5d66c4ffe3d7 - <tokio[5e61935daab4d7e6]::runtime::thread_pool::ThreadPool>::block_on::<rust_out[c29997ca7713e474]::main::{closure#0}>
[INFO] [stdout]   28:     0x5d66c4ffe101 - <tokio[5e61935daab4d7e6]::runtime::Runtime>::block_on::<rust_out[c29997ca7713e474]::main::{closure#0}>
[INFO] [stdout]   29:     0x5d66c500113d - rust_out[c29997ca7713e474]::main
[INFO] [stdout]   30:     0x5d66c5001d13 - <fn() as core[a96a4c5c53f902a3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]   31:     0x5d66c4fffb96 - std[ec4e911328de40a6]::sys::backtrace::__rust_begin_short_backtrace::<fn(), ()>
[INFO] [stdout]   32:     0x5d66c5000b59 - std[ec4e911328de40a6]::rt::lang_start::<()>::{closure#0}
[INFO] [stdout]   33:     0x5d66c53d8674 - <&dyn core[a96a4c5c53f902a3]::ops::function::Fn<(), Output = i32> + core[a96a4c5c53f902a3]::panic::unwind_safe::RefUnwindSafe + core[a96a4c5c53f902a3]::marker::Sync as core[a96a4c5c53f902a3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/0abe69e6c16114311cc2700e972492e64d69c28f/library/core/src/ops/function.rs:287:21
[INFO] [stdout]   34:     0x5d66c53d8674 - std[ec4e911328de40a6]::panicking::catch_unwind::do_call::<&dyn core[a96a4c5c53f902a3]::ops::function::Fn<(), Output = i32> + core[a96a4c5c53f902a3]::panic::unwind_safe::RefUnwindSafe + core[a96a4c5c53f902a3]::marker::Sync, i32>
[INFO] [stdout]                                at /rustc/0abe69e6c16114311cc2700e972492e64d69c28f/library/std/src/panicking.rs:581:40
[INFO] [stdout]   35:     0x5d66c53d8674 - std[ec4e911328de40a6]::panicking::catch_unwind::<i32, &dyn core[a96a4c5c53f902a3]::ops::function::Fn<(), Output = i32> + core[a96a4c5c53f902a3]::panic::unwind_safe::RefUnwindSafe + core[a96a4c5c53f902a3]::marker::Sync>
[INFO] [stdout]                                at /rustc/0abe69e6c16114311cc2700e972492e64d69c28f/library/std/src/panicking.rs:544:19
[INFO] [stdout]   36:     0x5d66c53d8674 - std[ec4e911328de40a6]::panic::catch_unwind::<&dyn core[a96a4c5c53f902a3]::ops::function::Fn<(), Output = i32> + core[a96a4c5c53f902a3]::panic::unwind_safe::RefUnwindSafe + core[a96a4c5c53f902a3]::marker::Sync, i32>
[INFO] [stdout]                                at /rustc/0abe69e6c16114311cc2700e972492e64d69c28f/library/std/src/panic.rs:359:14
[INFO] [stdout]   37:     0x5d66c53d8674 - std[ec4e911328de40a6]::rt::lang_start_internal::{closure#0}
[INFO] [stdout]                                at /rustc/0abe69e6c16114311cc2700e972492e64d69c28f/library/std/src/rt.rs:175:24
[INFO] [stdout]   38:     0x5d66c53d8674 - std[ec4e911328de40a6]::panicking::catch_unwind::do_call::<std[ec4e911328de40a6]::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stdout]                                at /rustc/0abe69e6c16114311cc2700e972492e64d69c28f/library/std/src/panicking.rs:581:40
[INFO] [stdout]   39:     0x5d66c53d8674 - std[ec4e911328de40a6]::panicking::catch_unwind::<isize, std[ec4e911328de40a6]::rt::lang_start_internal::{closure#0}>
[INFO] [stdout]                                at /rustc/0abe69e6c16114311cc2700e972492e64d69c28f/library/std/src/panicking.rs:544:19
[INFO] [stdout]   40:     0x5d66c53d8674 - std[ec4e911328de40a6]::panic::catch_unwind::<std[ec4e911328de40a6]::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stdout]                                at /rustc/0abe69e6c16114311cc2700e972492e64d69c28f/library/std/src/panic.rs:359:14
[INFO] [stdout]   41:     0x5d66c53d8674 - std[ec4e911328de40a6]::rt::lang_start_internal
[INFO] [stdout]                                at /rustc/0abe69e6c16114311cc2700e972492e64d69c28f/library/std/src/rt.rs:171:5
[INFO] [stdout]   42:     0x5d66c4fff831 - std[ec4e911328de40a6]::rt::lang_start::<()>
[INFO] [stdout]   43:     0x5d66c5001dd5 - main
[INFO] [stdout]   44:     0x77d402f171ca - <unknown>
[INFO] [stdout]   45:     0x77d402f1728b - __libc_start_main
[INFO] [stdout]   46:     0x5d66c4ffdf65 - _start
[INFO] [stdout]   47:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - initialize (line 12)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.83s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "014cf0629fd411be6be5a7d066cff349eaad904bfb285e82764522b8e1a62556", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "014cf0629fd411be6be5a7d066cff349eaad904bfb285e82764522b8e1a62556", kill_on_drop: false }`
[INFO] [stdout] 014cf0629fd411be6be5a7d066cff349eaad904bfb285e82764522b8e1a62556
