[INFO] fetching crate fehler 1.0.0...
[INFO] testing fehler-1.0.0 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate fehler 1.0.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate fehler 1.0.0 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate fehler 1.0.0
[INFO] finished tweaking crates.io crate fehler 1.0.0
[INFO] tweaked toml for crates.io crate fehler 1.0.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate fehler 1.0.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "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" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] def0f95d8232bd559a70e3315e53ccd8cd20a2a883446c7cb70536edc3083ab2
[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" "def0f95d8232bd559a70e3315e53ccd8cd20a2a883446c7cb70536edc3083ab2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "def0f95d8232bd559a70e3315e53ccd8cd20a2a883446c7cb70536edc3083ab2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "def0f95d8232bd559a70e3315e53ccd8cd20a2a883446c7cb70536edc3083ab2", kill_on_drop: false }`
[INFO] [stdout] def0f95d8232bd559a70e3315e53ccd8cd20a2a883446c7cb70536edc3083ab2
[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" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b06e453e0624791d47564e82f2aa0730e9442f25a114a0158afc719cce1daa2b
[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" "b06e453e0624791d47564e82f2aa0730e9442f25a114a0158afc719cce1daa2b", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]    Compiling fehler-macros v1.0.0
[INFO] [stderr]    Compiling fehler v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.42s
[INFO] running `Command { std: "docker" "inspect" "b06e453e0624791d47564e82f2aa0730e9442f25a114a0158afc719cce1daa2b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b06e453e0624791d47564e82f2aa0730e9442f25a114a0158afc719cce1daa2b", kill_on_drop: false }`
[INFO] [stdout] b06e453e0624791d47564e82f2aa0730e9442f25a114a0158afc719cce1daa2b
[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" "+beta-2021-01-01" "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] 490cfcf4c782fb4952a7ef0b6cbda1a16504cea5c1da46b1e518f8b920034c98
[INFO] running `Command { std: "docker" "start" "-a" "490cfcf4c782fb4952a7ef0b6cbda1a16504cea5c1da46b1e518f8b920034c98", kill_on_drop: false }`
[INFO] [stderr]    Compiling fehler v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]  --> tests/no_std.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | #[throws(i32)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^ unreachable expression
[INFO] [stdout] 6 | fn no_std_fn() {
[INFO] [stdout] 7 |     throw!(0);
[INFO] [stdout]   |     ---------- any code following this expression is unreachable
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout]   = note: this warning originates in an attribute macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> tests/throws.rs:99:5
[INFO] [stdout]     |
[INFO] [stdout] 99  |     #[throws]
[INFO] [stdout]     |     ^^^^^^^^^ unreachable expression
[INFO] [stdout] 100 |     fn throws_integer() {
[INFO] [stdout] 101 |         throw!(0);
[INFO] [stdout]     |         ---------- any code following this expression is unreachable
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout]     = note: this warning originates in an attribute macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `Error`
[INFO] [stdout]   --> tests/throws.rs:97:5
[INFO] [stdout]    |
[INFO] [stdout] 97 |     type Error = i32;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `throws_integer`
[INFO] [stdout]    --> tests/throws.rs:100:8
[INFO] [stdout]     |
[INFO] [stdout] 100 |     fn throws_integer() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.41s
[INFO] running `Command { std: "docker" "inspect" "490cfcf4c782fb4952a7ef0b6cbda1a16504cea5c1da46b1e518f8b920034c98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "490cfcf4c782fb4952a7ef0b6cbda1a16504cea5c1da46b1e518f8b920034c98", kill_on_drop: false }`
[INFO] [stdout] 490cfcf4c782fb4952a7ef0b6cbda1a16504cea5c1da46b1e518f8b920034c98
[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" "+beta-2021-01-01" "test" "--frozen", 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] d1fc6e5f0b7bf3af30886c016a4a203fbbdfde4e07047ab08724525c24931661
[INFO] running `Command { std: "docker" "start" "-a" "d1fc6e5f0b7bf3af30886c016a4a203fbbdfde4e07047ab08724525c24931661", kill_on_drop: false }`
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]    --> tests/throws.rs:99:5
[INFO] [stderr]     |
[INFO] [stderr] 99  |     #[throws]
[INFO] [stderr]     |     ^^^^^^^^^ unreachable expression
[INFO] [stderr] 100 |     fn throws_integer() {
[INFO] [stderr] 101 |         throw!(0);
[INFO] [stderr]     |         ---------- any code following this expression is unreachable
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr]     = note: this warning originates in an attribute macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `Error`
[INFO] [stderr]   --> tests/throws.rs:97:5
[INFO] [stderr]    |
[INFO] [stderr] 97 |     type Error = i32;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `throws_integer`
[INFO] [stderr]    --> tests/throws.rs:100:8
[INFO] [stderr]     |
[INFO] [stderr] 100 |     fn throws_integer() {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]  --> tests/no_std.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | #[throws(i32)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^ unreachable expression
[INFO] [stderr] 6 | fn no_std_fn() {
[INFO] [stderr] 7 |     throw!(0);
[INFO] [stderr]   |     ---------- any code following this expression is unreachable
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr]   = note: this warning originates in an attribute macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/fehler-0a364c8fe468e8fb
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/no_std-7e2d54ea6e9d8e4e
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/option-98495dce83d65b70
[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 1 test
[INFO] [stdout] test test_expansion ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 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 test_outcome_true ... ok
[INFO] [stdout] test test_outcome_false ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/throw-fce7b11c90341d4c
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/throws-6a51f9934dfafe8f
[INFO] [stdout] test throw_infers_ok_type ... ok
[INFO] [stdout] test throw_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests fehler
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/lib.rs - throws (line 42) ... ok
[INFO] [stdout] test src/lib.rs - throws (line 13) ... ok
[INFO] [stdout] test src/lib.rs - throws (line 65) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.16s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "d1fc6e5f0b7bf3af30886c016a4a203fbbdfde4e07047ab08724525c24931661", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1fc6e5f0b7bf3af30886c016a4a203fbbdfde4e07047ab08724525c24931661", kill_on_drop: false }`
[INFO] [stdout] d1fc6e5f0b7bf3af30886c016a4a203fbbdfde4e07047ab08724525c24931661