[INFO] fetching crate apriltag 0.3.1...
[INFO] checking apriltag-0.3.1 against master#39b841dfe36f90a7cd111e7f0c55f32594f6e578 for pr-77035
[INFO] extracting crate apriltag 0.3.1 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate apriltag 0.3.1 on toolchain 39b841dfe36f90a7cd111e7f0c55f32594f6e578
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate apriltag 0.3.1
[INFO] finished tweaking crates.io crate apriltag 0.3.1
[INFO] tweaked toml for crates.io crate apriltag 0.3.1 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate apriltag 0.3.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 673bba8b3fed51cb8d9c9368d3ef4491b4b0171bcacfa74873b939cecd51348e
[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" "673bba8b3fed51cb8d9c9368d3ef4491b4b0171bcacfa74873b939cecd51348e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "673bba8b3fed51cb8d9c9368d3ef4491b4b0171bcacfa74873b939cecd51348e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "673bba8b3fed51cb8d9c9368d3ef4491b4b0171bcacfa74873b939cecd51348e", kill_on_drop: false }`
[INFO] [stdout] 673bba8b3fed51cb8d9c9368d3ef4491b4b0171bcacfa74873b939cecd51348e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d6e45b1f20c3789f19bae989b2f7846d29afe3a0d2b97c8a0d5e00811875e24a
[INFO] running `Command { std: "docker" "start" "-a" "d6e45b1f20c3789f19bae989b2f7846d29afe3a0d2b97c8a0d5e00811875e24a", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.79
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling syn v1.0.44
[INFO] [stderr]    Compiling rayon-core v1.8.1
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling anyhow v1.0.33
[INFO] [stderr]     Checking weezl v0.1.1
[INFO] [stderr]     Checking lzw v0.10.0
[INFO] [stderr]    Compiling argh_shared v0.1.1
[INFO] [stderr]     Checking crc32fast v1.2.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]     Checking gif v0.11.1
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling rayon v1.4.1
[INFO] [stderr]    Compiling num-iter v0.1.41
[INFO] [stderr]    Compiling num-rational v0.3.0
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking deflate v0.8.6
[INFO] [stderr]     Checking tiff v0.5.0
[INFO] [stderr]     Checking crossbeam-channel v0.4.4
[INFO] [stderr]    Compiling jobserver v0.1.21
[INFO] [stderr]     Checking png v0.16.7
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]    Compiling cc v1.0.61
[INFO] [stderr]    Compiling cmake v0.1.44
[INFO] [stderr]    Compiling apriltag-sys v0.1.5
[INFO] [stderr]    Compiling thiserror-impl v1.0.21
[INFO] [stderr]    Compiling argh_derive v0.1.1
[INFO] [stderr]     Checking jpeg-decoder v0.1.20
[INFO] [stderr]     Checking thiserror v1.0.21
[INFO] [stderr]     Checking image v0.23.10
[INFO] [stderr]     Checking argh v0.1.3
[INFO] [stderr]     Checking apriltag v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: constant is never used: `DEFAULT_ALIGNMENT_U8`
[INFO] [stdout]   --> src/image_buf.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | const DEFAULT_ALIGNMENT_U8: usize = 96;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]    --> src/image_buf.rs:355:9
[INFO] [stdout]     |
[INFO] [stdout] 355 |     use super::*;
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `DEFAULT_ALIGNMENT_U8`
[INFO] [stdout]   --> src/image_buf.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | const DEFAULT_ALIGNMENT_U8: usize = 96;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 55.89s
[INFO] running `Command { std: "docker" "inspect" "d6e45b1f20c3789f19bae989b2f7846d29afe3a0d2b97c8a0d5e00811875e24a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d6e45b1f20c3789f19bae989b2f7846d29afe3a0d2b97c8a0d5e00811875e24a", kill_on_drop: false }`
[INFO] [stdout] d6e45b1f20c3789f19bae989b2f7846d29afe3a0d2b97c8a0d5e00811875e24a