[INFO] fetching crate tao-log 1.0.1...
[INFO] testing tao-log-1.0.1 against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] extracting crate tao-log 1.0.1 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate tao-log 1.0.1 on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tao-log 1.0.1
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate tao-log 1.0.1
[INFO] tweaked toml for crates.io crate tao-log 1.0.1 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3c98fa1b133f10a5aa902548c489b777042c6667ea237423bb4b1264eba44eef
[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" "3c98fa1b133f10a5aa902548c489b777042c6667ea237423bb4b1264eba44eef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3c98fa1b133f10a5aa902548c489b777042c6667ea237423bb4b1264eba44eef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c98fa1b133f10a5aa902548c489b777042c6667ea237423bb4b1264eba44eef", kill_on_drop: false }`
[INFO] [stdout] 3c98fa1b133f10a5aa902548c489b777042c6667ea237423bb4b1264eba44eef
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 93ada4b301ffdc9e6a91dfbf9bc7dd90db27c5610f44e09ac347690e8a8e72c5
[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" "93ada4b301ffdc9e6a91dfbf9bc7dd90db27c5610f44e09ac347690e8a8e72c5", kill_on_drop: false }`
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling tao-log v1.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.72s
[INFO] running `Command { std: "docker" "inspect" "93ada4b301ffdc9e6a91dfbf9bc7dd90db27c5610f44e09ac347690e8a8e72c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93ada4b301ffdc9e6a91dfbf9bc7dd90db27c5610f44e09ac347690e8a8e72c5", kill_on_drop: false }`
[INFO] [stdout] 93ada4b301ffdc9e6a91dfbf9bc7dd90db27c5610f44e09ac347690e8a8e72c5
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c7994b9ad85e9fb80d98204404fb7b16bdc714f93eeeb07b70fa56b76ca3c736
[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" "c7994b9ad85e9fb80d98204404fb7b16bdc714f93eeeb07b70fa56b76ca3c736", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling libc v0.2.107
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling lock_api v0.3.4
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling smallvec v0.6.14
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]    Compiling tao-log v1.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> tests/log_v.rs:37:49
[INFO] [stdout]    |
[INFO] [stdout] 37 |         assert!(t == "log_v" || t == "special", t);
[INFO] [stdout]    |                                                 ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout]    = note: this usage of assert!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]    |
[INFO] [stdout] 37 |         assert!(t == "log_v" || t == "special", "{}", t);
[INFO] [stdout]    |                                                 +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 9.55s
[INFO] running `Command { std: "docker" "inspect" "c7994b9ad85e9fb80d98204404fb7b16bdc714f93eeeb07b70fa56b76ca3c736", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c7994b9ad85e9fb80d98204404fb7b16bdc714f93eeeb07b70fa56b76ca3c736", kill_on_drop: false }`
[INFO] [stdout] c7994b9ad85e9fb80d98204404fb7b16bdc714f93eeeb07b70fa56b76ca3c736
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7ace37f771b6538ba09ebe790f0e3c1bc5772872ae91775a2ba15a51ddca4595
[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" "7ace37f771b6538ba09ebe790f0e3c1bc5772872ae91775a2ba15a51ddca4595", kill_on_drop: false }`
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]   --> tests/log_v.rs:37:49
[INFO] [stderr]    |
[INFO] [stderr] 37 |         assert!(t == "log_v" || t == "special", t);
[INFO] [stderr]    |                                                 ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stderr]    = note: this usage of assert!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]    |
[INFO] [stderr] 37 |         assert!(t == "log_v" || t == "special", "{}", t);
[INFO] [stderr]    |                                                 +++++
[INFO] [stderr] 
[INFO] [stderr] warning: `tao-log` (test "log_v") generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/tao_log-0579ce2ac43d3b2a)
[INFO] [stdout] 
[INFO] [stderr]      Running tests/fatal.rs (/opt/rustwide/target/debug/deps/fatal-f39933cecbbf173b)
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test fatal_static_msg - should panic ... ok
[INFO] [stdout] test fatal_format_msg - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/log_v.rs (/opt/rustwide/target/debug/deps/log_v-872374d07a1c049e)
[INFO] [stdout] INFO  Start of test (test output follows)
[INFO] [stderr]    Doc-tests tao-log
[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 132) ... ok
[INFO] [stdout] test src/lib.rs - (line 98) ... ok
[INFO] [stdout] test src/lib.rs - (line 38) ... ok
[INFO] [stdout] test src/lib.rs - (line 49) ... ok
[INFO] [stdout] test src/lib.rs - (line 108) ... ok
[INFO] [stdout] test src/macros.rs - macros::fatal (line 21) ... 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 153) ... ok
[INFO] [stdout] test src/macros.rs - macros::logv (line 55) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 2.86s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "7ace37f771b6538ba09ebe790f0e3c1bc5772872ae91775a2ba15a51ddca4595", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ace37f771b6538ba09ebe790f0e3c1bc5772872ae91775a2ba15a51ddca4595", kill_on_drop: false }`
[INFO] [stdout] 7ace37f771b6538ba09ebe790f0e3c1bc5772872ae91775a2ba15a51ddca4595