[INFO] fetching crate cid 0.6.0...
[INFO] testing cid-0.6.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate cid 0.6.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate cid 0.6.0 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 cid 0.6.0
[INFO] finished tweaking crates.io crate cid 0.6.0
[INFO] tweaked toml for crates.io crate cid 0.6.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ca55ca51c09a1a5b8757054760c1fcaa61561a3a7e2dfcd590de1e47d6140eb3
[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" "ca55ca51c09a1a5b8757054760c1fcaa61561a3a7e2dfcd590de1e47d6140eb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ca55ca51c09a1a5b8757054760c1fcaa61561a3a7e2dfcd590de1e47d6140eb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca55ca51c09a1a5b8757054760c1fcaa61561a3a7e2dfcd590de1e47d6140eb3", kill_on_drop: false }`
[INFO] [stdout] ca55ca51c09a1a5b8757054760c1fcaa61561a3a7e2dfcd590de1e47d6140eb3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0f896fe688f26c11940a27bf207e08ba08147346c99ae2d39245f1b88c70dafd
[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" "0f896fe688f26c11940a27bf207e08ba08147346c99ae2d39245f1b88c70dafd", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]    Compiling arrayvec v0.5.2
[INFO] [stderr]    Compiling constant_time_eq v0.1.5
[INFO] [stderr]    Compiling block-padding v0.2.1
[INFO] [stderr]    Compiling arrayref v0.3.6
[INFO] [stderr]    Compiling opaque-debug v0.3.0
[INFO] [stderr]    Compiling subtle v2.4.0
[INFO] [stderr]    Compiling data-encoding v2.3.1
[INFO] [stderr]    Compiling cpuid-bool v0.1.2
[INFO] [stderr]    Compiling keccak v0.1.0
[INFO] [stderr]    Compiling unsigned-varint v0.5.1
[INFO] [stderr]    Compiling base-x v0.2.8
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling blake3 v0.3.7
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling blake2b_simd v0.5.11
[INFO] [stderr]    Compiling blake2s_simd v0.5.11
[INFO] [stderr]    Compiling quickcheck v0.9.2
[INFO] [stderr]    Compiling digest v0.9.0
[INFO] [stderr]    Compiling block-buffer v0.9.0
[INFO] [stderr]    Compiling crypto-mac v0.8.0
[INFO] [stderr]    Compiling sha3 v0.9.1
[INFO] [stderr]    Compiling sha2 v0.9.2
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]    Compiling syn v1.0.57
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling data-encoding-macro-internal v0.1.9
[INFO] [stderr]    Compiling proc-macro-crate v0.1.5
[INFO] [stderr]    Compiling data-encoding-macro v0.1.10
[INFO] [stderr]    Compiling multihash-derive v0.7.1
[INFO] [stderr]    Compiling multibase v0.8.0
[INFO] [stderr]    Compiling multihash v0.13.2
[INFO] [stderr]    Compiling cid v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 40.37s
[INFO] running `Command { std: "docker" "inspect" "0f896fe688f26c11940a27bf207e08ba08147346c99ae2d39245f1b88c70dafd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f896fe688f26c11940a27bf207e08ba08147346c99ae2d39245f1b88c70dafd", kill_on_drop: false }`
[INFO] [stdout] 0f896fe688f26c11940a27bf207e08ba08147346c99ae2d39245f1b88c70dafd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--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] 4fc65b10a366b8325315279e1965cba4f5b7e3e2bbf49fd983646fed6331086c
[INFO] running `Command { std: "docker" "start" "-a" "4fc65b10a366b8325315279e1965cba4f5b7e3e2bbf49fd983646fed6331086c", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_json v1.0.61
[INFO] [stderr]    Compiling cid v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 6.70s
[INFO] running `Command { std: "docker" "inspect" "4fc65b10a366b8325315279e1965cba4f5b7e3e2bbf49fd983646fed6331086c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4fc65b10a366b8325315279e1965cba4f5b7e3e2bbf49fd983646fed6331086c", kill_on_drop: false }`
[INFO] [stdout] 4fc65b10a366b8325315279e1965cba4f5b7e3e2bbf49fd983646fed6331086c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c1738ccde52d0afc41871c89b4ef2ad969b07256693bc806fdd7bcdf9c7655c8
[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" "c1738ccde52d0afc41871c89b4ef2ad969b07256693bc806fdd7bcdf9c7655c8", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/cid-93c7107305235658
[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
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/lib-ea075c84749f527e
[INFO] [stdout] 
[INFO] [stdout] running 14 tests
[INFO] [stdout] test empty_string ... ok
[INFO] [stdout] test test_base32 ... ok
[INFO] [stdout] test from ... ok
[INFO] [stdout] test method_can_take_differently_sized_cids ... ok
[INFO] [stdout] test test_hash ... ok
[INFO] [stdout] test from_str ... ok
[INFO] [stdout] test basic_marshalling ... ok
[INFO] [stdout] test v0_handling ... ok
[INFO] [stdout] test v0_error ... ok
[INFO] [stdout] test to_string_of_base_v0_error ... ok
[INFO] [stdout] test to_string_of_base64 ... ok
[INFO] [stdout] test to_string_of_base58_v0 ... ok
[INFO] [stdout] test to_string_of_base32 ... ok
[INFO] [stdout] test to_string ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 14 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests cid
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/cid.rs - cid::Cid<S>::to_string_of_base (line 159) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c1738ccde52d0afc41871c89b4ef2ad969b07256693bc806fdd7bcdf9c7655c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1738ccde52d0afc41871c89b4ef2ad969b07256693bc806fdd7bcdf9c7655c8", kill_on_drop: false }`
[INFO] [stdout] c1738ccde52d0afc41871c89b4ef2ad969b07256693bc806fdd7bcdf9c7655c8