[INFO] fetching crate chainerror 0.6.1...
[INFO] testing chainerror-0.6.1 against 1.49.0 for beta-1.50-1
[INFO] extracting crate chainerror 0.6.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate chainerror 0.6.1 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 chainerror 0.6.1
[INFO] finished tweaking crates.io crate chainerror 0.6.1
[INFO] tweaked toml for crates.io crate chainerror 0.6.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate chainerror 0.6.1 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-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] 7d64c3c2096538cedcac9dd9507d8fdb143fea9c157aeaf2996e9fe191daebd2
[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" "7d64c3c2096538cedcac9dd9507d8fdb143fea9c157aeaf2996e9fe191daebd2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7d64c3c2096538cedcac9dd9507d8fdb143fea9c157aeaf2996e9fe191daebd2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d64c3c2096538cedcac9dd9507d8fdb143fea9c157aeaf2996e9fe191daebd2", kill_on_drop: false }`
[INFO] [stdout] 7d64c3c2096538cedcac9dd9507d8fdb143fea9c157aeaf2996e9fe191daebd2
[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] b603a800794ca9d2d7b26f4ec65d9628976c1756749d2d2befbd06f4876765d6
[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" "b603a800794ca9d2d7b26f4ec65d9628976c1756749d2d2befbd06f4876765d6", kill_on_drop: false }`
[INFO] [stderr]    Compiling chainerror v0.6.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.60s
[INFO] running `Command { std: "docker" "inspect" "b603a800794ca9d2d7b26f4ec65d9628976c1756749d2d2befbd06f4876765d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b603a800794ca9d2d7b26f4ec65d9628976c1756749d2d2befbd06f4876765d6", kill_on_drop: false }`
[INFO] [stdout] b603a800794ca9d2d7b26f4ec65d9628976c1756749d2d2befbd06f4876765d6
[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] [stdout] 5d2ad8b771c9010ab0d6be6eebebd9f3dbc3772d0f20a2499b5bdd75ea7d35f6
[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" "5d2ad8b771c9010ab0d6be6eebebd9f3dbc3772d0f20a2499b5bdd75ea7d35f6", kill_on_drop: false }`
[INFO] [stderr]    Compiling chainerror v0.6.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.80s
[INFO] running `Command { std: "docker" "inspect" "5d2ad8b771c9010ab0d6be6eebebd9f3dbc3772d0f20a2499b5bdd75ea7d35f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d2ad8b771c9010ab0d6be6eebebd9f3dbc3772d0f20a2499b5bdd75ea7d35f6", kill_on_drop: false }`
[INFO] [stdout] 5d2ad8b771c9010ab0d6be6eebebd9f3dbc3772d0f20a2499b5bdd75ea7d35f6
[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] 4ddbecb14ea1e803faa544a6fcf288548cdb4625b2fcf65dbf619e02a9c72ec8
[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" "4ddbecb14ea1e803faa544a6fcf288548cdb4625b2fcf65dbf619e02a9c72ec8", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/chainerror-93a2c64d824cc82e
[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/test_iter-3f0282052fbfe1ef
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test test_find_cause ... ok
[INFO] [stdout] test test_iter ... ok
[INFO] [stdout] test test_root_cause ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests chainerror
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test src/lib.rs - derive_err_kind (line 754) ... ok
[INFO] [stdout] test src/lib.rs - ChainError<T>::find_chain_cause (line 210) ... ok
[INFO] [stdout] test src/lib.rs - ChainError<T>::kind (line 262) ... ok
[INFO] [stdout] test src/lib.rs - (line 6) ... ok
[INFO] [stdout] test src/lib.rs - ChainError<T>::find_kind_or_cause (line 233) ... ok
[INFO] [stdout] test src/lib.rs - ChainError<T>::find_cause (line 160) ... ok
[INFO] [stdout] test src/lib.rs - (line 41) ... ok
[INFO] [stdout] test src/lib.rs - derive_str_context (line 691) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "4ddbecb14ea1e803faa544a6fcf288548cdb4625b2fcf65dbf619e02a9c72ec8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ddbecb14ea1e803faa544a6fcf288548cdb4625b2fcf65dbf619e02a9c72ec8", kill_on_drop: false }`
[INFO] [stdout] 4ddbecb14ea1e803faa544a6fcf288548cdb4625b2fcf65dbf619e02a9c72ec8