[INFO] fetching crate tao-log 1.0.0...
[INFO] testing tao-log-1.0.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate tao-log 1.0.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate tao-log 1.0.0 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 tao-log 1.0.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate tao-log 1.0.0
[INFO] tweaked toml for crates.io crate tao-log 1.0.0 written to /workspace/builds/worker-1/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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] [stdout] 8c177cf2da7ca85c08ba4b91d79fcd2efb7c2fc6f88f0292ff84054297c0022c
[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" "8c177cf2da7ca85c08ba4b91d79fcd2efb7c2fc6f88f0292ff84054297c0022c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8c177cf2da7ca85c08ba4b91d79fcd2efb7c2fc6f88f0292ff84054297c0022c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c177cf2da7ca85c08ba4b91d79fcd2efb7c2fc6f88f0292ff84054297c0022c", kill_on_drop: false }`
[INFO] [stdout] 8c177cf2da7ca85c08ba4b91d79fcd2efb7c2fc6f88f0292ff84054297c0022c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 541acd8ac743bf48cf9b1e9acf90cd9e9d1493f5808962f1d6297720da790d1b
[INFO] running `Command { std: "docker" "start" "-a" "541acd8ac743bf48cf9b1e9acf90cd9e9d1493f5808962f1d6297720da790d1b", kill_on_drop: false }`
[INFO] [stderr]    Compiling tao-log v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.21s
[INFO] running `Command { std: "docker" "inspect" "541acd8ac743bf48cf9b1e9acf90cd9e9d1493f5808962f1d6297720da790d1b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "541acd8ac743bf48cf9b1e9acf90cd9e9d1493f5808962f1d6297720da790d1b", kill_on_drop: false }`
[INFO] [stdout] 541acd8ac743bf48cf9b1e9acf90cd9e9d1493f5808962f1d6297720da790d1b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 9741980ef7e887c038c0405db9993e7954ca7cd6e5d877a63ffafdc45d4aae04
[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" "9741980ef7e887c038c0405db9993e7954ca7cd6e5d877a63ffafdc45d4aae04", kill_on_drop: false }`
[INFO] [stderr]    Compiling tao-log v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.93s
[INFO] running `Command { std: "docker" "inspect" "9741980ef7e887c038c0405db9993e7954ca7cd6e5d877a63ffafdc45d4aae04", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9741980ef7e887c038c0405db9993e7954ca7cd6e5d877a63ffafdc45d4aae04", kill_on_drop: false }`
[INFO] [stdout] 9741980ef7e887c038c0405db9993e7954ca7cd6e5d877a63ffafdc45d4aae04
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 39a638a3ab2e37786db5643a4587b6017ec06266bb17c4fe1094463de7d1296e
[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" "39a638a3ab2e37786db5643a4587b6017ec06266bb17c4fe1094463de7d1296e", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/tao_log-2a97b1ffec688c67
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/fatal-440b0747c2f280b0
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test fatal_static_msg ... ok
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/log_v-9324ab27404ec8b7
[INFO] [stdout] test fatal_format_msg ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests tao-log
[INFO] [stdout] INFO  Start of test (test output follows)
[INFO] [stdout] DEBUG i → 32
[INFO] [stdout] DEBUG i + 1 → 33
[INFO] [stdout] ERROR i → 32
[INFO] [stdout] WARN  index i → 0x20
[INFO] [stdout] ERROR custom: i → 00032
[INFO] [stdout] DEBUG (j / 4, j % 4) → (4, 3)
[INFO] [stdout] DEBUG fifth (j / 5, j % 5) → (3, 4)
[INFO] [stdout] DEBUG (j,) → (19,)
[INFO] [stdout] DEBUG (j) → 19
[INFO] [stdout] INFO  &vt → "foo"
[INFO] [stdout] INFO  vt → "foo"
[INFO] [stdout] DEBUG o.take() → Some(33)
[INFO] [stdout] DEBUG o.take() → None
[INFO] [stdout] INFO  i → 3
[INFO] [stdout] WARN  (i + 1, i + 2) → (4, 5)
[INFO] [stdout] DEBUG fvoid() → ()
[INFO] [stdout] DEBUG fstr() → "returned"
[INFO] [stdout] INFO  m = 1 → ()
[INFO] [stdout] INFO  m = 2 → ()
[INFO] [stdout] INFO  4 → 4
[INFO] [stdout] INFO  trailing comma i → 4
[INFO] [stdout] INFO  i → 4
[INFO] [stdout] DEBUG  22 → 22
[INFO] [stdout] WARN  666 1 → 1
[INFO] [stdout] DEBUG prefix with "i" 4 → without
[INFO] [stdout] INFO  End of test (passed)
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test src/lib.rs - (line 38) ... ok
[INFO] [stdout] test src/macros.rs - logv (line 55) ... ok
[INFO] [stdout] test src/lib.rs - (line 49) ... ok
[INFO] [stdout] test src/lib.rs - (line 33) ... ok
[INFO] [stdout] test src/lib.rs - (line 72) ... ok
[INFO] [stdout] test src/lib.rs - (line 98) ... ok
[INFO] [stdout] test src/lib.rs - (line 132) ... ok
[INFO] [stdout] test src/lib.rs - (line 108) ... ok
[INFO] [stdout] test src/lib.rs - (line 153) ... ok
[INFO] [stdout] test src/macros.rs - fatal (line 21) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "39a638a3ab2e37786db5643a4587b6017ec06266bb17c4fe1094463de7d1296e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "39a638a3ab2e37786db5643a4587b6017ec06266bb17c4fe1094463de7d1296e", kill_on_drop: false }`
[INFO] [stdout] 39a638a3ab2e37786db5643a4587b6017ec06266bb17c4fe1094463de7d1296e