[INFO] fetching crate might 0.2.1...
[INFO] testing might-0.2.1 against 1.90.0 for beta-1.91-3
[INFO] extracting crate might 0.2.1 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate might 0.2.1
[INFO] finished tweaking crates.io crate might 0.2.1
[INFO] tweaked toml for crates.io crate might 0.2.1 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate might 0.2.1 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate might 0.2.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded minreq v2.12.0
[INFO] [stderr]   Downloaded security-framework-sys v2.11.1
[INFO] [stderr]   Downloaded cc v1.1.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0dbaa93ff5bcec9d71619eb1cc6e5709eb357094969e90a0c29d02dcb3d85d31
[INFO] running `Command { std: "docker" "start" "-a" "0dbaa93ff5bcec9d71619eb1cc6e5709eb357094969e90a0c29d02dcb3d85d31", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0dbaa93ff5bcec9d71619eb1cc6e5709eb357094969e90a0c29d02dcb3d85d31", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0dbaa93ff5bcec9d71619eb1cc6e5709eb357094969e90a0c29d02dcb3d85d31", kill_on_drop: false }`
[INFO] [stdout] 0dbaa93ff5bcec9d71619eb1cc6e5709eb357094969e90a0c29d02dcb3d85d31
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 14120c3d61637248c3888e5fe9a785d98f98c8d24d1161636a557da768d5ced9
[INFO] running `Command { std: "docker" "start" "-a" "14120c3d61637248c3888e5fe9a785d98f98c8d24d1161636a557da768d5ced9", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.1.6
[INFO] [stderr]    Compiling libc v0.2.155
[INFO] [stderr]    Compiling crossbeam-utils v0.8.20
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]    Compiling rustls v0.21.12
[INFO] [stderr]    Compiling log v0.4.22
[INFO] [stderr]    Compiling minreq v2.12.0
[INFO] [stderr]    Compiling either v1.13.0
[INFO] [stderr]    Compiling webpki-roots v0.25.4
[INFO] [stderr]    Compiling rustls-native-certs v0.6.3
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling crossbeam-deque v0.8.5
[INFO] [stderr]    Compiling getrandom v0.2.15
[INFO] [stderr]    Compiling rayon v1.10.0
[INFO] [stderr]    Compiling ring v0.17.8
[INFO] [stderr]    Compiling sct v0.7.1
[INFO] [stderr]    Compiling rustls-webpki v0.101.7
[INFO] [stderr]    Compiling might v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/lib.rs:418:13
[INFO] [stdout]     |
[INFO] [stdout] 418 | struct Expr(String);
[INFO] [stdout]     |        ---- ^^^^^^
[INFO] [stdout]     |        |
[INFO] [stdout]     |        field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout]     = note: `Expr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/lib.rs:421:8
[INFO] [stdout]     |
[INFO] [stdout] 420 | impl Expr {
[INFO] [stdout]     | --------- associated function in this implementation
[INFO] [stdout] 421 |     fn new() -> Self {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 14.83s
[INFO] running `Command { std: "docker" "inspect" "14120c3d61637248c3888e5fe9a785d98f98c8d24d1161636a557da768d5ced9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "14120c3d61637248c3888e5fe9a785d98f98c8d24d1161636a557da768d5ced9", kill_on_drop: false }`
[INFO] [stdout] 14120c3d61637248c3888e5fe9a785d98f98c8d24d1161636a557da768d5ced9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b91e7d21d342b122318cf981d1709172302d3db8fbbce57941096f28dca12c62
[INFO] running `Command { std: "docker" "start" "-a" "b91e7d21d342b122318cf981d1709172302d3db8fbbce57941096f28dca12c62", kill_on_drop: false }`
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/lib.rs:418:13
[INFO] [stdout]     |
[INFO] [stdout] 418 | struct Expr(String);
[INFO] [stdout]     |        ---- ^^^^^^
[INFO] [stdout]     |        |
[INFO] [stdout]     |        field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout]     = note: `Expr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling might v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/lib.rs:421:8
[INFO] [stdout]     |
[INFO] [stdout] 420 | impl Expr {
[INFO] [stdout]     | --------- associated function in this implementation
[INFO] [stdout] 421 |     fn new() -> Self {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/lib.rs:418:13
[INFO] [stdout]     |
[INFO] [stdout] 418 | struct Expr(String);
[INFO] [stdout]     |        ---- ^^^^^^
[INFO] [stdout]     |        |
[INFO] [stdout]     |        field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout]     = note: `Expr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/lib.rs:421:8
[INFO] [stdout]     |
[INFO] [stdout] 420 | impl Expr {
[INFO] [stdout]     | --------- associated function in this implementation
[INFO] [stdout] 421 |     fn new() -> Self {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.51s
[INFO] running `Command { std: "docker" "inspect" "b91e7d21d342b122318cf981d1709172302d3db8fbbce57941096f28dca12c62", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b91e7d21d342b122318cf981d1709172302d3db8fbbce57941096f28dca12c62", kill_on_drop: false }`
[INFO] [stdout] b91e7d21d342b122318cf981d1709172302d3db8fbbce57941096f28dca12c62
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6a6ecb6b1c63fb23e84f7396a63ed24e5bd3f6ebc5cea9ac3946375330e3eec9
[INFO] running `Command { std: "docker" "start" "-a" "6a6ecb6b1c63fb23e84f7396a63ed24e5bd3f6ebc5cea9ac3946375330e3eec9", kill_on_drop: false }`
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]    --> src/lib.rs:418:13
[INFO] [stderr]     |
[INFO] [stderr] 418 | struct Expr(String);
[INFO] [stderr]     |        ---- ^^^^^^
[INFO] [stderr]     |        |
[INFO] [stderr]     |        field in this struct
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider removing this field
[INFO] [stderr]     = note: `Expr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]    --> src/lib.rs:421:8
[INFO] [stderr]     |
[INFO] [stderr] 420 | impl Expr {
[INFO] [stderr]     | --------- associated function in this implementation
[INFO] [stderr] 421 |     fn new() -> Self {
[INFO] [stderr]     |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `might` (lib) generated 2 warnings
[INFO] [stderr] warning: `might` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/might-fddf456e918d6b5b)
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/might-cfffd9733e352838)
[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 0 tests
[INFO] [stderr]    Doc-tests might
[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 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] running `Command { std: "docker" "inspect" "6a6ecb6b1c63fb23e84f7396a63ed24e5bd3f6ebc5cea9ac3946375330e3eec9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a6ecb6b1c63fb23e84f7396a63ed24e5bd3f6ebc5cea9ac3946375330e3eec9", kill_on_drop: false }`
[INFO] [stdout] 6a6ecb6b1c63fb23e84f7396a63ed24e5bd3f6ebc5cea9ac3946375330e3eec9