[INFO] fetching crate imagehead 0.1.0...
[INFO] testing imagehead-0.1.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate imagehead 0.1.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate imagehead 0.1.0 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate imagehead 0.1.0
[INFO] finished tweaking crates.io crate imagehead 0.1.0
[INFO] tweaked toml for crates.io crate imagehead 0.1.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate imagehead 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", 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] 0b95f21c24708c03c98fa1ec98dd0b63d4c21a490ea1151bf63ff2cec7cc1161
[INFO] running `Command { std: "docker" "start" "-a" "0b95f21c24708c03c98fa1ec98dd0b63d4c21a490ea1151bf63ff2cec7cc1161", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0b95f21c24708c03c98fa1ec98dd0b63d4c21a490ea1151bf63ff2cec7cc1161", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b95f21c24708c03c98fa1ec98dd0b63d4c21a490ea1151bf63ff2cec7cc1161", kill_on_drop: false }`
[INFO] [stdout] 0b95f21c24708c03c98fa1ec98dd0b63d4c21a490ea1151bf63ff2cec7cc1161
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--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] d45bbe20d0635bd3ed8e6ff9c41d0ce6d44c7c23d39ed23bc328240d4ea3af54
[INFO] running `Command { std: "docker" "start" "-a" "d45bbe20d0635bd3ed8e6ff9c41d0ce6d44c7c23d39ed23bc328240d4ea3af54", kill_on_drop: false }`
[INFO] [stderr]    Compiling imagehead v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.71s
[INFO] running `Command { std: "docker" "inspect" "d45bbe20d0635bd3ed8e6ff9c41d0ce6d44c7c23d39ed23bc328240d4ea3af54", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d45bbe20d0635bd3ed8e6ff9c41d0ce6d44c7c23d39ed23bc328240d4ea3af54", kill_on_drop: false }`
[INFO] [stdout] d45bbe20d0635bd3ed8e6ff9c41d0ce6d44c7c23d39ed23bc328240d4ea3af54
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7bef745776e56fb8bb231eff45cc48af33658a04459bae19f93f1d85fc55167c
[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" "7bef745776e56fb8bb231eff45cc48af33658a04459bae19f93f1d85fc55167c", kill_on_drop: false }`
[INFO] [stderr]    Compiling imagehead v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.22s
[INFO] running `Command { std: "docker" "inspect" "7bef745776e56fb8bb231eff45cc48af33658a04459bae19f93f1d85fc55167c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7bef745776e56fb8bb231eff45cc48af33658a04459bae19f93f1d85fc55167c", kill_on_drop: false }`
[INFO] [stdout] 7bef745776e56fb8bb231eff45cc48af33658a04459bae19f93f1d85fc55167c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] bcf54f436a5d94a0ad32d9acfa8edbbab8bdaa184d252ef901a8f604608a3f67
[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" "bcf54f436a5d94a0ad32d9acfa8edbbab8bdaa184d252ef901a8f604608a3f67", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/imagehead-ee60c35e7ecc630a
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/info-7f7d2385aac5e68f
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests imagehead
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - ImageMeta::from_bytes (line 43) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - ImageMeta::from_bytes (line 43) stdout ----
[INFO] [stdout] error: expected one of `,`, `.`, `?`, `}`, or an operator, found `;`
[INFO] [stdout]  --> src/lib.rs:46:41
[INFO] [stdout]   |
[INFO] [stdout] 5 |     None => panic!("Unknown image format!");
[INFO] [stdout]   |          --                                ^ expected one of `,`, `.`, `?`, `}`, or an operator
[INFO] [stdout]   |          |
[INFO] [stdout]   |          while parsing the `match` arm starting here
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `ImageMeta`
[INFO] [stdout]  --> src/lib.rs:48:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | assert_eq!(ImageMeta::Png, info.kind);
[INFO] [stdout]   |            ^^^^^^^^^ use of undeclared type `ImageMeta`
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `ImageMeta`
[INFO] [stdout]  --> src/lib.rs:44:18
[INFO] [stdout]   |
[INFO] [stdout] 3 | let info = match ImageMeta::from_bytes(&png_image) {
[INFO] [stdout]   |                  ^^^^^^^^^ not found in this scope
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]   |
[INFO] [stdout] 2 | use imagehead::ImageMeta;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `png_image` in this scope
[INFO] [stdout]  --> src/lib.rs:44:41
[INFO] [stdout]   |
[INFO] [stdout] 3 | let info = match ImageMeta::from_bytes(&png_image) {
[INFO] [stdout]   |                                         ^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0425, E0433.
[INFO] [stdout] For more information about an error, try `rustc --explain E0425`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - ImageMeta::from_bytes (line 43)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "bcf54f436a5d94a0ad32d9acfa8edbbab8bdaa184d252ef901a8f604608a3f67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bcf54f436a5d94a0ad32d9acfa8edbbab8bdaa184d252ef901a8f604608a3f67", kill_on_drop: false }`
[INFO] [stdout] bcf54f436a5d94a0ad32d9acfa8edbbab8bdaa184d252ef901a8f604608a3f67