[INFO] fetching crate captcha 0.0.8...
[INFO] checking captcha-0.0.8 against try#07fecb9cf34c4979a772ba38c99d6d9144768413 for pr-87710
[INFO] extracting crate captcha 0.0.8 into /workspace/builds/worker-100/source
[INFO] validating manifest of crates.io crate captcha 0.0.8 on toolchain 07fecb9cf34c4979a772ba38c99d6d9144768413
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate captcha 0.0.8
[INFO] finished tweaking crates.io crate captcha 0.0.8
[INFO] tweaked toml for crates.io crate captcha 0.0.8 written to /workspace/builds/worker-100/source/Cargo.toml
[INFO] crate crates.io crate captcha 0.0.8 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
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[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded time v0.2.22
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[INFO] [stderr]   Downloaded bytemuck v1.4.0
[INFO] [stderr]   Downloaded hound v3.4.0
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[INFO] [stderr]   Downloaded lodepng v3.2.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0ba54f5bbea845a09f9c2a5039e94eb0b27aa4d4010d19da2ed01fc70f3983a5
[INFO] running `Command { std: "docker" "start" "-a" "0ba54f5bbea845a09f9c2a5039e94eb0b27aa4d4010d19da2ed01fc70f3983a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0ba54f5bbea845a09f9c2a5039e94eb0b27aa4d4010d19da2ed01fc70f3983a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ba54f5bbea845a09f9c2a5039e94eb0b27aa4d4010d19da2ed01fc70f3983a5", kill_on_drop: false }`
[INFO] [stdout] 0ba54f5bbea845a09f9c2a5039e94eb0b27aa4d4010d19da2ed01fc70f3983a5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 799ede0069cd758457733f18ed5726c8d05e36fc50f11e8a8d6b18e301dd14ed
[INFO] running `Command { std: "docker" "start" "-a" "799ede0069cd758457733f18ed5726c8d05e36fc50f11e8a8d6b18e301dd14ed", kill_on_drop: false }`
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[INFO] [stderr]    Compiling libc v0.2.76
[INFO] [stderr]    Compiling version_check v0.9.2
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[INFO] [stderr]    Compiling unicode-xid v0.2.1
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[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
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[INFO] [stderr]    Compiling miniz_oxide v0.4.3
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[INFO] [stderr]    Compiling time-macros-impl v0.1.1
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[INFO] [stderr]     Checking time-macros v0.1.1
[INFO] [stderr]     Checking captcha v0.0.8 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::io::BufReader`
[INFO] [stdout]  --> examples/base64.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::io::BufReader;
[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] warning: use of deprecated type alias `time::PreciseTime`: Use `Instant`
[INFO] [stdout]  --> examples/perf.rs:6:11
[INFO] [stdout]   |
[INFO] [stdout] 6 | use time::PreciseTime;
[INFO] [stdout]   |           ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated type alias `time::PreciseTime`: Use `Instant`
[INFO] [stdout]   --> examples/perf.rs:13:13
[INFO] [stdout]    |
[INFO] [stdout] 13 |     let b = PreciseTime::now();
[INFO] [stdout]    |             ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `time::precise_time_ns`: Use `OffsetDateTime::now() - OffsetDateTime::unix_epoch()` to get a `Duration` since a known epoch.
[INFO] [stdout]   --> examples/perf.rs:20:41
[INFO] [stdout]    |
[INFO] [stdout] 20 |             println!("done {}ms", time::precise_time_ns() / 1000 / 1000);
[INFO] [stdout]    |                                         ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated type alias `time::PreciseTime`: Use `Instant`
[INFO] [stdout]   --> examples/perf.rs:29:13
[INFO] [stdout]    |
[INFO] [stdout] 29 |     let c = PreciseTime::now();
[INFO] [stdout]    |             ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `time::Instant::to`: Use `rhs - lhs`
[INFO] [stdout]   --> examples/perf.rs:30:15
[INFO] [stdout]    |
[INFO] [stdout] 30 |     let d = b.to(c).num_milliseconds();
[INFO] [stdout]    |               ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `time::Duration::num_milliseconds`: Use the `whole_milliseconds` function. The value is clamped between `i64::min_value()` and `i64::max_value()`.
[INFO] [stdout]   --> examples/perf.rs:30:21
[INFO] [stdout]    |
[INFO] [stdout] 30 |     let d = b.to(c).num_milliseconds();
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 27.50s
[INFO] running `Command { std: "docker" "inspect" "799ede0069cd758457733f18ed5726c8d05e36fc50f11e8a8d6b18e301dd14ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "799ede0069cd758457733f18ed5726c8d05e36fc50f11e8a8d6b18e301dd14ed", kill_on_drop: false }`
[INFO] [stdout] 799ede0069cd758457733f18ed5726c8d05e36fc50f11e8a8d6b18e301dd14ed